## GtkTextView GtkTextView — Widget that displays a GtkTextBuffer |

## Synopsis

    #include <gtk/gtk.h>

                        GtkTextView;
    enum                GtkTextWindowType;
    GtkWidget*          gtk_text_view_new                   (void);
    GtkWidget*          gtk_text_view_new_with_buffer       (GtkTextBuffer *buffer);
    void                gtk_text_view_set_buffer            (GtkTextView *text_view,
                                                             GtkTextBuffer *buffer);
    GtkTextBuffer*      gtk_text_view_get_buffer            (GtkTextView *text_view);
    void                gtk_text_view_scroll_to_mark        (GtkTextView *text_view,
                                                             GtkTextMark *mark,
                                                             gdouble within_margin,
                                                             gboolean use_align,
                                                             gdouble xalign,
                                                             gdouble yalign);
    gboolean            gtk_text_view_scroll_to_iter        (GtkTextView *text_view,
                                                             GtkTextIter *iter,
                                                             gdouble within_margin,
                                                             gboolean use_align,
                                                             gdouble xalign,
                                                             gdouble yalign);
    void                gtk_text_view_scroll_mark_onscreen  (GtkTextView *text_view,
                                                             GtkTextMark *mark);
    gboolean            gtk_text_view_move_mark_onscreen    (GtkTextView *text_view,
                                                             GtkTextMark *mark);
    gboolean            gtk_text_view_place_cursor_onscreen (GtkTextView *text_view);
    void                gtk_text_view_get_visible_rect      (GtkTextView *text_view,
                                                             GdkRectangle *visible_rect);
    void                gtk_text_view_get_iter_location     (GtkTextView *text_view,
                                                             const GtkTextIter *iter,
                                                             GdkRectangle *location);
    void                gtk_text_view_get_line_at_y         (GtkTextView *text_view,
                                                             GtkTextIter *target_iter,
                                                             gint y,
                                                             gint *line_top);
    void                gtk_text_view_get_line_yrange       (GtkTextView *text_view,
                                                             const GtkTextIter *iter,
                                                             gint *y,
                                                             gint *height);
    void                gtk_text_view_get_iter_at_location  (GtkTextView *text_view,
                                                             GtkTextIter *iter,
                                                             gint x,
                                                             gint y);
    void                gtk_text_view_get_iter_at_position  (GtkTextView *text_view,
                                                             GtkTextIter *iter,
                                                             gint *trailing,
                                                             gint x,
                                                             gint y);
    void                gtk_text_view_buffer_to_window_coords
                                                            (GtkTextView *text_view,
                                                             GtkTextWindowType win,
                                                             gint buffer_x,
                                                             gint buffer_y,
                                                             gint *window_x,
                                                             gint *window_y);
    void                gtk_text_view_window_to_buffer_coords
                                                            (GtkTextView *text_view,
                                                             GtkTextWindowType win,
                                                             gint window_x,
                                                             gint window_y,
                                                             gint *buffer_x,
                                                             gint *buffer_y);
    GdkWindow*          gtk_text_view_get_window            (GtkTextView *text_view,
                                                             GtkTextWindowType win);
    GtkTextWindowType   gtk_text_view_get_window_type       (GtkTextView *text_view,
                                                             GdkWindow *window);
    void                gtk_text_view_set_border_window_size
                                                            (GtkTextView *text_view,
                                                             GtkTextWindowType type,
                                                             gint size);
    gint                gtk_text_view_get_border_window_size
                                                            (GtkTextView *text_view,
                                                             GtkTextWindowType type);
    gboolean            gtk_text_view_forward_display_line  (GtkTextView *text_view,
                                                             GtkTextIter *iter);
    gboolean            gtk_text_view_backward_display_line (GtkTextView *text_view,
                                                             GtkTextIter *iter);
    gboolean            gtk_text_view_forward_display_line_end
                                                            (GtkTextView *text_view,
                                                             GtkTextIter *iter);
    gboolean            gtk_text_view_backward_display_line_start
                                                            (GtkTextView *text_view,
                                                             GtkTextIter *iter);
    gboolean            gtk_text_view_starts_display_line   (GtkTextView *text_view,
                                                             const GtkTextIter *iter);
    gboolean            gtk_text_view_move_visually         (GtkTextView *text_view,
                                                             GtkTextIter *iter,
                                                             gint count);
    void                gtk_text_view_add_child_at_anchor   (GtkTextView *text_view,
                                                             GtkWidget *child,
                                                             GtkTextChildAnchor *anchor);
                        GtkTextChildAnchor;
    GtkTextChildAnchor* gtk_text_child_anchor_new           (void);
    GList*              gtk_text_child_anchor_get_widgets   (GtkTextChildAnchor *anchor);
    gboolean            gtk_text_child_anchor_get_deleted   (GtkTextChildAnchor *anchor);
    void                gtk_text_view_add_child_in_window   (GtkTextView *text_view,
                                                             GtkWidget *child,
                                                             GtkTextWindowType which_window,
                                                             gint xpos,
                                                             gint ypos);
    void                gtk_text_view_move_child            (GtkTextView *text_view,
                                                             GtkWidget *child,
                                                             gint xpos,
                                                             gint ypos);
    void                gtk_text_view_set_wrap_mode         (GtkTextView *text_view,
                                                             GtkWrapMode wrap_mode);
    GtkWrapMode         gtk_text_view_get_wrap_mode         (GtkTextView *text_view);
    void                gtk_text_view_set_editable          (GtkTextView *text_view,
                                                             gboolean setting);
    gboolean            gtk_text_view_get_editable          (GtkTextView *text_view);
    void                gtk_text_view_set_cursor_visible    (GtkTextView *text_view,
                                                             gboolean setting);
    gboolean            gtk_text_view_get_cursor_visible    (GtkTextView *text_view);
    void                gtk_text_view_set_overwrite         (GtkTextView *text_view,
                                                             gboolean overwrite);
    gboolean            gtk_text_view_get_overwrite         (GtkTextView *text_view);
    void                gtk_text_view_set_pixels_above_lines
                                                            (GtkTextView *text_view,
                                                             gint pixels_above_lines);
    gint                gtk_text_view_get_pixels_above_lines
                                                            (GtkTextView *text_view);
    void                gtk_text_view_set_pixels_below_lines
                                                            (GtkTextView *text_view,
                                                             gint pixels_below_lines);
    gint                gtk_text_view_get_pixels_below_lines
                                                            (GtkTextView *text_view);
    void                gtk_text_view_set_pixels_inside_wrap
                                                            (GtkTextView *text_view,
                                                             gint pixels_inside_wrap);
    gint                gtk_text_view_get_pixels_inside_wrap
                                                            (GtkTextView *text_view);
    void                gtk_text_view_set_justification     (GtkTextView *text_view,
                                                             GtkJustification justification);
    GtkJustification    gtk_text_view_get_justification     (GtkTextView *text_view);
    void                gtk_text_view_set_left_margin       (GtkTextView *text_view,
                                                             gint left_margin);
    gint                gtk_text_view_get_left_margin       (GtkTextView *text_view);
    void                gtk_text_view_set_right_margin      (GtkTextView *text_view,
                                                             gint right_margin);
    gint                gtk_text_view_get_right_margin      (GtkTextView *text_view);
    void                gtk_text_view_set_indent            (GtkTextView *text_view,
                                                             gint indent);
    gint                gtk_text_view_get_indent            (GtkTextView *text_view);
    void                gtk_text_view_set_tabs              (GtkTextView *text_view,
                                                             PangoTabArray *tabs);
    PangoTabArray*      gtk_text_view_get_tabs              (GtkTextView *text_view);
    void                gtk_text_view_set_accepts_tab       (GtkTextView *text_view,
                                                             gboolean accepts_tab);
    gboolean            gtk_text_view_get_accepts_tab       (GtkTextView *text_view);
    GtkTextAttributes*  gtk_text_view_get_default_attributes
                                                            (GtkTextView *text_view);
    #define             GTK_TEXT_VIEW_PRIORITY_VALIDATE

## Object Hierarchy

      GObject
       +----GInitiallyUnowned
             +----GtkObject
                   +----GtkWidget
                         +----GtkContainer
                               +----GtkTextView

      GObject
       +----GtkTextChildAnchor

## Implemented Interfaces

GtkTextView implements AtkImplementorIface and GtkBuildable.

## Properties

      "accepts-tab"              gboolean              : Read / Write
      "buffer"                   GtkTextBuffer*        : Read / Write
      "cursor-visible"           gboolean              : Read / Write
      "editable"                 gboolean              : Read / Write
      "indent"                   gint                  : Read / Write
      "justification"            GtkJustification      : Read / Write
      "left-margin"              gint                  : Read / Write
      "overwrite"                gboolean              : Read / Write
      "pixels-above-lines"       gint                  : Read / Write
      "pixels-below-lines"       gint                  : Read / Write
      "pixels-inside-wrap"       gint                  : Read / Write
      "right-margin"             gint                  : Read / Write
      "tabs"                     PangoTabArray*        : Read / Write
      "wrap-mode"                GtkWrapMode           : Read / Write

## Style Properties

      "error-underline-color"    GdkColor*             : Read

## Signals

      "backspace"                                      : Run Last / Action
      "copy-clipboard"                                 : Run Last / Action
      "cut-clipboard"                                  : Run Last / Action
      "delete-from-cursor"                             : Run Last / Action
      "insert-at-cursor"                               : Run Last / Action
      "move-cursor"                                    : Run Last / Action
      "move-viewport"                                  : Run Last / Action
      "page-horizontally"                              : Run Last / Action
      "paste-clipboard"                                : Run Last / Action
      "populate-popup"                                 : Run Last
      "select-all"                                     : Run Last / Action
      "set-anchor"                                     : Run Last / Action
      "set-scroll-adjustments"                         : Run Last / Action
      "toggle-cursor-visible"                          : Run Last / Action
      "toggle-overwrite"                               : Run Last / Action

## Description

You may wish to begin by reading the text widget conceptual overview which gives an overview of all the objects and data types related to the text widget and how they work together.

## Details

### GtkTextView

    typedef struct _GtkTextView GtkTextView;

### enum GtkTextWindowType

    typedef enum
    {
      GTK_TEXT_WINDOW_PRIVATE,
      GTK_TEXT_WINDOW_WIDGET,
      GTK_TEXT_WINDOW_TEXT,
      GTK_TEXT_WINDOW_LEFT,
      GTK_TEXT_WINDOW_RIGHT,
      GTK_TEXT_WINDOW_TOP,
      GTK_TEXT_WINDOW_BOTTOM
    } GtkTextWindowType;

### gtk_text_view_new ()

    GtkWidget*          gtk_text_view_new                   (void);

Creates a new GtkTextView. If you don't call `gtk_text_view_set_buffer()` before using the text view, an empty default buffer will be created for you. Get the buffer with `gtk_text_view_get_buffer()`. If you want to specify your own buffer, consider `gtk_text_view_new_with_buffer()`.

Returns : | a new GtkTextView

### gtk_text_view_new_with_buffer ()

    GtkWidget*          gtk_text_view_new_with_buffer       (GtkTextBuffer *buffer);

Creates a new GtkTextView widget displaying the buffer `buffer`. One buffer can be shared among many widgets. `buffer` may be `NULL` to create a default buffer, in which case this function is equivalent to `gtk_text_view_new()`. The text view adds its own reference count to the buffer; it does not take over an existing reference.

`buffer` : | a GtkTextBuffer
Returns : | a new GtkTextView.

### gtk_text_view_set_buffer ()

    void                gtk_text_view_set_buffer            (GtkTextView *text_view,
                                                             GtkTextBuffer *buffer);

Sets `buffer` as the buffer being displayed by `text_view`. The previous buffer displayed by the text view is unreferenced, and a reference is added to `buffer`. If you owned a reference to `buffer` before passing it to this function, you must remove that reference yourself; GtkTextView will not "adopt" it.

`text_view` : | a GtkTextView
`buffer` : | a GtkTextBuffer

### gtk_text_view_get_buffer ()

    GtkTextBuffer*      gtk_text_view_get_buffer            (GtkTextView *text_view);

Returns the GtkTextBuffer being displayed by this text view. The reference count on the buffer is not incremented; the caller of this function won't own a new reference.

`text_view` : | a GtkTextView
Returns : | a GtkTextBuffer

### gtk_text_view_scroll_to_mark ()

    void                gtk_text_view_scroll_to_mark        (GtkTextView *text_view,
                                                             GtkTextMark *mark,
                                                             gdouble within_margin,
                                                             gboolean use_align,
                                                             gdouble xalign,
                                                             gdouble yalign);

Scrolls `text_view` so that `mark` is on the screen in the position indicated by `xalign` and `yalign`. An alignment of 0.0 indicates left or top, 1.0 indicates right or bottom, 0.5 means center. If `use_align` is `FALSE`, the text scrolls the minimal distance to get the mark onscreen, possibly not scrolling at all. The effective screen for purposes of this function is reduced by a margin of size `within_margin`.

`text_view` : | a GtkTextView
`mark` : | a GtkTextMark
`within_margin` : | margin as a [0.0,0.5) fraction of screen size
`use_align` : | whether to use alignment arguments (if `FALSE`, just get the mark onscreen)
`xalign` : | horizontal alignment of mark within visible area
`yalign` : | vertical alignment of mark within visible area

### gtk_text_view_scroll_to_iter ()

    gboolean            gtk_text_view_scroll_to_iter        (GtkTextView *text_view,
                                                             GtkTextIter *iter,
                                                             gdouble within_margin,
                                                             gboolean use_align,
                                                             gdouble xalign,
                                                             gdouble yalign);

Scrolls `text_view` so that `iter` is on the screen in the position indicated by `xalign` and `yalign`. An alignment of 0.0 indicates left or top, 1.0 indicates right or bottom, 0.5 means center. If `use_align` is `FALSE`, the text scrolls the minimal distance to get the mark onscreen, possibly not scrolling at all. The effective screen for purposes of this function is reduced by a margin of size `within_margin`.

Note that this function uses the currently-computed height of the lines in the text buffer. Line heights are computed in an idle handler; so this function may not have the desired effect if it's called before the height computations. To avoid oddness, consider using `gtk_text_view_scroll_to_mark()` which saves a point to be scrolled to after line validation.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
`within_margin` : | margin as a [0.0,0.5) fraction of screen size
`use_align` : | whether to use alignment arguments (if `FALSE`, just get the mark onscreen)
`xalign` : | horizontal alignment of mark within visible area
`yalign` : | vertical alignment of mark within visible area
Returns : | `TRUE` if scrolling occurred

### gtk_text_view_scroll_mark_onscreen ()

    void                gtk_text_view_scroll_mark_onscreen  (GtkTextView *text_view,
                                                             GtkTextMark *mark);

Scrolls `text_view` the minimum distance such that `mark` is contained within the visible area of the widget.

`text_view` : | a GtkTextView
`mark` : | a mark in the buffer for `text_view`

### gtk_text_view_move_mark_onscreen ()

    gboolean            gtk_text_view_move_mark_onscreen    (GtkTextView *text_view,
                                                             GtkTextMark *mark);

Moves a mark within the buffer so that it's located within the currently-visible text area.

`text_view` : | a GtkTextView
`mark` : | a GtkTextMark
Returns : | `TRUE` if the mark moved (wasn't already onscreen)

### gtk_text_view_place_cursor_onscreen ()

    gboolean            gtk_text_view_place_cursor_onscreen (GtkTextView *text_view);

Moves the cursor to the currently visible region of the buffer, it it isn't there already.

`text_view` : | a GtkTextView
Returns : | `TRUE` if the cursor had to be moved.

### gtk_text_view_get_visible_rect ()

    void                gtk_text_view_get_visible_rect      (GtkTextView *text_view,
                                                             GdkRectangle *visible_rect);

Fills `visible_rect` with the currently-visible region of the buffer, in buffer coordinates. Convert to window coordinates with `gtk_text_view_buffer_to_window_coords()`.

`text_view` : | a GtkTextView
`visible_rect` : | rectangle to fill

### gtk_text_view_get_iter_location ()

    void                gtk_text_view_get_iter_location     (GtkTextView *text_view,
                                                             const GtkTextIter *iter,
                                                             GdkRectangle *location);

Gets a rectangle which roughly contains the character at `iter`. The rectangle position is in buffer coordinates; use `gtk_text_view_buffer_to_window_coords()` to convert these coordinates to coordinates for one of the windows in the text view.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
`location` : | bounds of the character at `iter`

### gtk_text_view_get_line_at_y ()

    void                gtk_text_view_get_line_at_y         (GtkTextView *text_view,
                                                             GtkTextIter *target_iter,
                                                             gint y,
                                                             gint *line_top);

Gets the GtkTextIter at the start of the line containing the coordinate `y`. `y` is in buffer coordinates, convert from window coordinates with `gtk_text_view_window_to_buffer_coords()`. If non-`NULL`, `line_top` will be filled with the coordinate of the top edge of the line.

`text_view` : | a GtkTextView
`target_iter` : | a GtkTextIter
`y` : | a y coordinate
`line_top` : | return location for top coordinate of the line

### gtk_text_view_get_line_yrange ()

    void                gtk_text_view_get_line_yrange       (GtkTextView *text_view,
                                                             const GtkTextIter *iter,
                                                             gint *y,
                                                             gint *height);

Gets the y coordinate of the top of the line containing `iter`, and the height of the line. The coordinate is a buffer coordinate; convert to window coordinates with `gtk_text_view_buffer_to_window_coords()`.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
`y` : | return location for a y coordinate
`height` : | return location for a height

### gtk_text_view_get_iter_at_location ()

    void                gtk_text_view_get_iter_at_location  (GtkTextView *text_view,
                                                             GtkTextIter *iter,
                                                             gint x,
                                                             gint y);

Retrieves the iterator at buffer coordinates `x` and `y`. Buffer coordinates are coordinates for the entire buffer, not just the currently-displayed portion. If you have coordinates from an event, you have to convert those to buffer coordinates with `gtk_text_view_window_to_buffer_coords()`.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
`x` : | x position, in buffer coordinates
`y` : | y position, in buffer coordinates

### gtk_text_view_get_iter_at_position ()

    void                gtk_text_view_get_iter_at_position  (GtkTextView *text_view,
                                                             GtkTextIter *iter,
                                                             gint *trailing,
                                                             gint x,
                                                             gint y);

Retrieves the iterator pointing to the character at buffer coordinates `x` and `y`. Buffer coordinates are coordinates for the entire buffer, not just the currently-displayed portion. If you have coordinates from an event, you have to convert those to buffer coordinates with `gtk_text_view_window_to_buffer_coords()`.

Note that this is different from `gtk_text_view_get_iter_at_location()`, which returns cursor locations, i.e. positions between characters.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
`trailing` : | location to store an integer indicating where in the grapheme the user clicked. It will either be zero, or the number of characters in the grapheme. 0 represents the trailing edge of the grapheme.
`x` : | x position, in buffer coordinates
`y` : | y position, in buffer coordinates

Since 2.6

### gtk_text_view_buffer_to_window_coords ()

    void                gtk_text_view_buffer_to_window_coords
                                                            (GtkTextView *text_view,
                                                             GtkTextWindowType win,
                                                             gint buffer_x,
                                                             gint buffer_y,
                                                             gint *window_x,
                                                             gint *window_y);

Converts coordinate (`buffer_x`, `buffer_y`) to coordinates for the window `win`, and stores the result in (`window_x`, `window_y`).

Note that you can't convert coordinates for a nonexisting window (see `gtk_text_view_set_border_window_size()`).

`text_view` : | a GtkTextView
`win` : | a GtkTextWindowType except GTK_TEXT_WINDOW_PRIVATE
`buffer_x` : | buffer x coordinate
`buffer_y` : | buffer y coordinate
`window_x` : | window x coordinate return location
`window_y` : | window y coordinate return location

### gtk_text_view_window_to_buffer_coords ()

    void                gtk_text_view_window_to_buffer_coords
                                                            (GtkTextView *text_view,
                                                             GtkTextWindowType win,
                                                             gint window_x,
                                                             gint window_y,
                                                             gint *buffer_x,
                                                             gint *buffer_y);

Converts coordinates on the window identified by `win` to buffer coordinates, storing the result in (`buffer_x`,`buffer_y`).

Note that you can't convert coordinates for a nonexisting window (see `gtk_text_view_set_border_window_size()`).

`text_view` : | a GtkTextView
`win` : | a GtkTextWindowType except GTK_TEXT_WINDOW_PRIVATE
`window_x` : | window x coordinate
`window_y` : | window y coordinate
`buffer_x` : | buffer x coordinate return location
`buffer_y` : | buffer y coordinate return location

### gtk_text_view_get_window ()

    GdkWindow*          gtk_text_view_get_window            (GtkTextView *text_view,
                                                             GtkTextWindowType win);

Retrieves the GdkWindow corresponding to an area of the text view; possible windows include the overall widget window, child windows on the left, right, top, bottom, and the window that displays the text buffer. Windows are `NULL` and nonexistent if their width or height is 0, and are nonexistent before the widget has been realized.

`text_view` : | a GtkTextView
`win` : | window to get
Returns : | a GdkWindow, or `NULL`

### gtk_text_view_get_window_type ()

    GtkTextWindowType   gtk_text_view_get_window_type       (GtkTextView *text_view,
                                                             GdkWindow *window);

Usually used to find out which window an event corresponds to. If you connect to an event signal on `text_view`, this function should be called on `event->window` to see which window it was.

`text_view` : | a GtkTextView
`window` : | a window type
Returns : | the window type.

### gtk_text_view_set_border_window_size ()

    void                gtk_text_view_set_border_window_size
                                                            (GtkTextView *text_view,
                                                             GtkTextWindowType type,
                                                             gint size);

Sets the width of `GTK_TEXT_WINDOW_LEFT` or `GTK_TEXT_WINDOW_RIGHT`, or the height of `GTK_TEXT_WINDOW_TOP` or `GTK_TEXT_WINDOW_BOTTOM`. Automatically destroys the corresponding window if the size is set to 0, and creates the window if the size is set to non-zero. This function can only be used for the "border windows," it doesn't work with GTK_TEXT_WINDOW_WIDGET, GTK_TEXT_WINDOW_TEXT, or GTK_TEXT_WINDOW_PRIVATE.

`text_view` : | a GtkTextView
`type` : | window to affect
`size` : | width or height of the window

### gtk_text_view_get_border_window_size ()

    gint                gtk_text_view_get_border_window_size
                                                            (GtkTextView *text_view,
                                                             GtkTextWindowType type);

Gets the width of the specified border window. See `gtk_text_view_set_border_window_size()`.

`text_view` : | a GtkTextView
`type` : | window to return size from
Returns : | width of window

### gtk_text_view_forward_display_line ()

    gboolean            gtk_text_view_forward_display_line  (GtkTextView *text_view,
                                                             GtkTextIter *iter);

Moves the given `iter` forward by one display (wrapped) line. A display line is different from a paragraph. Paragraphs are separated by newlines or other paragraph separator characters. Display lines are created by line-wrapping a paragraph. If wrapping is turned off, display lines and paragraphs will be the same. Display lines are divided differently for each view, since they depend on the view's width; paragraphs are the same in all views, since they depend on the contents of the GtkTextBuffer.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
Returns : | `TRUE` if `iter` was moved and is not on the end iterator

### gtk_text_view_backward_display_line ()

    gboolean            gtk_text_view_backward_display_line (GtkTextView *text_view,
                                                             GtkTextIter *iter);

Moves the given `iter` backward by one display (wrapped) line. A display line is different from a paragraph. Paragraphs are separated by newlines or other paragraph separator characters. Display lines are created by line-wrapping a paragraph. If wrapping is turned off, display lines and paragraphs will be the same. Display lines are divided differently for each view, since they depend on the view's width; paragraphs are the same in all views, since they depend on the contents of the GtkTextBuffer.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
Returns : | `TRUE` if `iter` was moved and is not on the end iterator

### gtk_text_view_forward_display_line_end ()

    gboolean            gtk_text_view_forward_display_line_end
                                                            (GtkTextView *text_view,
                                                             GtkTextIter *iter);

Moves the given `iter` forward to the next display line end. A display line is different from a paragraph. Paragraphs are separated by newlines or other paragraph separator characters. Display lines are created by line-wrapping a paragraph. If wrapping is turned off, display lines and paragraphs will be the same. Display lines are divided differently for each view, since they depend on the view's width; paragraphs are the same in all views, since they depend on the contents of the GtkTextBuffer.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
Returns : | `TRUE` if `iter` was moved and is not on the end iterator

### gtk_text_view_backward_display_line_start ()

    gboolean            gtk_text_view_backward_display_line_start
                                                            (GtkTextView *text_view,
                                                             GtkTextIter *iter);

Moves the given `iter` backward to the next display line start. A display line is different from a paragraph. Paragraphs are separated by newlines or other paragraph separator characters. Display lines are created by line-wrapping a paragraph. If wrapping is turned off, display lines and paragraphs will be the same. Display lines are divided differently for each view, since they depend on the view's width; paragraphs are the same in all views, since they depend on the contents of the GtkTextBuffer.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
Returns : | `TRUE` if `iter` was moved and is not on the end iterator

### gtk_text_view_starts_display_line ()

    gboolean            gtk_text_view_starts_display_line   (GtkTextView *text_view,
                                                             const GtkTextIter *iter);

Determines whether `iter` is at the start of a display line. See `gtk_text_view_forward_display_line()` for an explanation of display lines vs. paragraphs.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
Returns : | `TRUE` if `iter` begins a wrapped line

### gtk_text_view_move_visually ()

    gboolean            gtk_text_view_move_visually         (GtkTextView *text_view,
                                                             GtkTextIter *iter,
                                                             gint count);

Move the iterator a given number of characters visually, treating it as the strong cursor position. If `count` is positive, then the new strong cursor position will be `count` positions to the right of the old cursor position. If `count` is negative then the new strong cursor position will be `count` positions to the left of the old cursor position.

In the presence of bi-directional text, the correspondence between logical and visual order will depend on the direction of the current run, and there may be jumps when the cursor is moved off of the end of a run.

`text_view` : | a GtkTextView
`iter` : | a GtkTextIter
`count` : | number of characters to move (negative moves left, positive moves right)
Returns : | `TRUE` if `iter` moved and is not on the end iterator

### gtk_text_view_add_child_at_anchor ()

    void                gtk_text_view_add_child_at_anchor   (GtkTextView *text_view,
                                                             GtkWidget *child,
                                                             GtkTextChildAnchor *anchor);

Adds a child widget in the text buffer, at the given `anchor`.

`text_view` : | a GtkTextView
`child` : | a GtkWidget
`anchor` : | a GtkTextChildAnchor in the GtkTextBuffer for `text_view`

### GtkTextChildAnchor

    typedef struct _GtkTextChildAnchor GtkTextChildAnchor;

A GtkTextChildAnchor is a spot in the buffer where child widgets can be "anchored" (inserted inline, as if they were characters). The anchor can have multiple widgets anchored, to allow for multiple views.

### gtk_text_child_anchor_new ()

    GtkTextChildAnchor* gtk_text_child_anchor_new           (void);

Creates a new GtkTextChildAnchor. Usually you would then insert it into a GtkTextBuffer with `gtk_text_buffer_insert_child_anchor()`. To perform the creation and insertion in one step, use the convenience function `gtk_text_buffer_create_child_anchor()`.

Returns : | a new GtkTextChildAnchor

### gtk_text_child_anchor_get_widgets ()

    GList*              gtk_text_child_anchor_get_widgets   (GtkTextChildAnchor *anchor);

Gets a list of all widgets anchored at this child anchor. The returned list should be freed with `g_list_free()`.

`anchor` : | a GtkTextChildAnchor
Returns : | list of widgets anchored at `anchor`

### gtk_text_child_anchor_get_deleted ()

    gboolean            gtk_text_child_anchor_get_deleted   (GtkTextChildAnchor *anchor);

Determines whether a child anchor has been deleted from the buffer. Keep in mind that the child anchor will be unreferenced when removed from the buffer, so you need to hold your own reference (with `g_object_ref()`) if you plan to use this function — otherwise all deleted child anchors will also be finalized.

`anchor` : | a GtkTextChildAnchor
Returns : | `TRUE` if the child anchor has been deleted from its buffer

### gtk_text_view_add_child_in_window ()

    void                gtk_text_view_add_child_in_window   (GtkTextView *text_view,
                                                             GtkWidget *child,
                                                             GtkTextWindowType which_window,
                                                             gint xpos,
                                                             gint ypos);

Adds a child at fixed coordinates in one of the text widget's windows. The window must have nonzero size (see `gtk_text_view_set_border_window_size()`). Note that the child coordinates are given relative to the GdkWindow in question, and that these coordinates have no sane relationship to scrolling. When placing a child in GTK_TEXT_WINDOW_WIDGET, scrolling is irrelevant, the child floats above all scrollable areas. But when placing a child in one of the scrollable windows (border windows or text window), you'll need to compute the child's correct position in buffer coordinates any time scrolling occurs or buffer changes occur, and then call `gtk_text_view_move_child()` to update the child's position. Unfortunately there's no good way to detect that scrolling has occurred, using the current API; a possible hack would be to update all child positions when the scroll adjustments change or the text buffer changes. See bug 64518 on bugzilla.gnome.org for status of fixing this issue.

`text_view` : | a GtkTextView
`child` : | a GtkWidget
`which_window` : | which window the child should appear in
`xpos` : | X position of child in window coordinates
`ypos` : | Y position of child in window coordinates

### gtk_text_view_move_child ()

    void                gtk_text_view_move_child            (GtkTextView *text_view,
                                                             GtkWidget *child,
                                                             gint xpos,
                                                             gint ypos);

Updates the position of a child, as for `gtk_text_view_add_child_in_window()`.

`text_view` : | a GtkTextView
`child` : | child widget already added to the text view
`xpos` : | new X position in window coordinates
`ypos` : | new Y position in window coordinates

### gtk_text_view_set_wrap_mode ()

    void                gtk_text_view_set_wrap_mode         (GtkTextView *text_view,
                                                             GtkWrapMode wrap_mode);

Sets the line wrapping for the view.

`text_view` : | a GtkTextView
`wrap_mode` : | a GtkWrapMode

### gtk_text_view_get_wrap_mode ()

    GtkWrapMode         gtk_text_view_get_wrap_mode         (GtkTextView *text_view);

Gets the line wrapping for the view.

`text_view` : | a GtkTextView
Returns : | the line wrap setting

### gtk_text_view_set_editable ()

    void                gtk_text_view_set_editable          (GtkTextView *text_view,
                                                             gboolean setting);

Sets the default editability of the GtkTextView. You can override this default setting with tags in the buffer, using the "editable" attribute of tags.

`text_view` : | a GtkTextView
`setting` : | whether it's editable

### gtk_text_view_get_editable ()

    gboolean            gtk_text_view_get_editable          (GtkTextView *text_view);

Returns the default editability of the GtkTextView. Tags in the buffer may override this setting for some ranges of text.

`text_view` : | a GtkTextView
Returns : | whether text is editable by default

### gtk_text_view_set_cursor_visible ()

    void                gtk_text_view_set_cursor_visible    (GtkTextView *text_view,
                                                             gboolean setting);

Toggles whether the insertion point is displayed. A buffer with no editable text probably shouldn't have a visible cursor, so you may want to turn the cursor off.

`text_view` : | a GtkTextView
`setting` : | whether to show the insertion cursor

### gtk_text_view_get_cursor_visible ()

    gboolean            gtk_text_view_get_cursor_visible    (GtkTextView *text_view);

Find out whether the cursor is being displayed.

`text_view` : | a GtkTextView
Returns : | whether the insertion mark is visible

### gtk_text_view_set_overwrite ()

    void                gtk_text_view_set_overwrite         (GtkTextView *text_view,
                                                             gboolean overwrite);

Changes the GtkTextView overwrite mode.

`text_view` : | a GtkTextView
`overwrite` : | `TRUE` to turn on overwrite mode, `FALSE` to turn it off

Since 2.4

### gtk_text_view_get_overwrite ()

    gboolean            gtk_text_view_get_overwrite         (GtkTextView *text_view);

Returns whether the GtkTextView is in overwrite mode or not.

`text_view` : | a GtkTextView
Returns : | whether `text_view` is in overwrite mode or not.

Since 2.4

### gtk_text_view_set_pixels_above_lines ()

    void                gtk_text_view_set_pixels_above_lines
                                                            (GtkTextView *text_view,
                                                             gint pixels_above_lines);

Sets the default number of blank pixels above paragraphs in `text_view`. Tags in the buffer for `text_view` may override the defaults.

`text_view` : | a GtkTextView
`pixels_above_lines` : | pixels above paragraphs

### gtk_text_view_get_pixels_above_lines ()

    gint                gtk_text_view_get_pixels_above_lines
                                                            (GtkTextView *text_view);

Gets the default number of pixels to put above paragraphs.

`text_view` : | a GtkTextView
Returns : | default number of pixels above paragraphs

### gtk_text_view_set_pixels_below_lines ()

    void                gtk_text_view_set_pixels_below_lines
                                                            (GtkTextView *text_view,
                                                             gint pixels_below_lines);

Sets the default number of pixels of blank space to put below paragraphs in `text_view`. May be overridden by tags applied to `text_view`'s buffer.

`text_view` : | a GtkTextView
`pixels_below_lines` : | pixels below paragraphs

### gtk_text_view_get_pixels_below_lines ()

    gint                gtk_text_view_get_pixels_below_lines
                                                            (GtkTextView *text_view);

Gets the value set by `gtk_text_view_set_pixels_below_lines()`.

`text_view` : | a GtkTextView
Returns : | default number of blank pixels below paragraphs

### gtk_text_view_set_pixels_inside_wrap ()

    void                gtk_text_view_set_pixels_inside_wrap
                                                            (GtkTextView *text_view,
                                                             gint pixels_inside_wrap);

Sets the default number of pixels of blank space to leave between display/wrapped lines within a paragraph. May be overridden by tags in `text_view`'s buffer.

`text_view` : | a GtkTextView
`pixels_inside_wrap` : | default number of pixels between wrapped lines

### gtk_text_view_get_pixels_inside_wrap ()

    gint                gtk_text_view_get_pixels_inside_wrap
                                                            (GtkTextView *text_view);

Gets the value set by `gtk_text_view_set_pixels_inside_wrap()`.

`text_view` : | a GtkTextView
Returns : | default number of pixels of blank space between wrapped lines

### gtk_text_view_set_justification ()

    void                gtk_text_view_set_justification     (GtkTextView *text_view,
                                                             GtkJustification justification);

Sets the default justification of text in `text_view`. Tags in the view's buffer may override the default.

`text_view` : | a GtkTextView
`justification` : | justification

### gtk_text_view_get_justification ()

    GtkJustification    gtk_text_view_get_justification     (GtkTextView *text_view);

Gets the default justification of paragraphs in `text_view`. Tags in the buffer may override the default.

`text_view` : | a GtkTextView
Returns : | default justification

### gtk_text_view_set_left_margin ()

    void                gtk_text_view_set_left_margin       (GtkTextView *text_view,
                                                             gint left_margin);

Sets the default left margin for text in `text_view`. Tags in the buffer may override the default.

`text_view` : | a GtkTextView
`left_margin` : | left margin in pixels

### gtk_text_view_get_left_margin ()

    gint                gtk_text_view_get_left_margin       (GtkTextView *text_view);

Gets the default left margin size of paragraphs in the `text_view`. Tags in the buffer may override the default.

`text_view` : | a GtkTextView
Returns : | left margin in pixels

### gtk_text_view_set_right_margin ()

    void                gtk_text_view_set_right_margin      (GtkTextView *text_view,
                                                             gint right_margin);

Sets the default right margin for text in the text view. Tags in the buffer may override the default.

`text_view` : | a GtkTextView
`right_margin` : | right margin in pixels

### gtk_text_view_get_right_margin ()

    gint                gtk_text_view_get_right_margin      (GtkTextView *text_view);

Gets the default right margin for text in `text_view`. Tags in the buffer may override the default.

`text_view` : | a GtkTextView
Returns : | right margin in pixels

### gtk_text_view_set_indent ()

    void                gtk_text_view_set_indent            (GtkTextView *text_view,
                                                             gint indent);

Sets the default indentation for paragraphs in `text_view`. Tags in the buffer may override the default.

`text_view` : | a GtkTextView
`indent` : | indentation in pixels

### gtk_text_view_get_indent ()

    gint                gtk_text_view_get_indent            (GtkTextView *text_view);

Gets the default indentation of paragraphs in `text_view`. Tags in the view's buffer may override the default. The indentation may be negative.

`text_view` : | a GtkTextView
Returns : | number of pixels of indentation

### gtk_text_view_set_tabs ()

    void                gtk_text_view_set_tabs              (GtkTextView *text_view,
                                                             PangoTabArray *tabs);

Sets the default tab stops for paragraphs in `text_view`. Tags in the buffer may override the default.

`text_view` : | a GtkTextView
`tabs` : | tabs as a PangoTabArray

### gtk_text_view_get_tabs ()

    PangoTabArray*      gtk_text_view_get_tabs              (GtkTextView *text_view);

Gets the default tabs for `text_view`. Tags in the buffer may override the defaults. The returned array will be `NULL` if "standard" (8-space) tabs are used. Free the return value with `pango_tab_array_free()`.

`text_view` : | a GtkTextView
Returns : | copy of default tab array, or `NULL` if "standard" tabs are used; must be freed with `pango_tab_array_free()`.

### gtk_text_view_set_accepts_tab ()

    void                gtk_text_view_set_accepts_tab       (GtkTextView *text_view,
                                                             gboolean accepts_tab);

Sets the behavior of the text widget when the Tab key is pressed. If `accepts_tab` is `TRUE`, a tab character is inserted. If `accepts_tab` is `FALSE` the keyboard focus is moved to the next widget in the focus chain.

`text_view` : | A GtkTextView
`accepts_tab` : | `TRUE` if pressing the Tab key should insert a tab character, `FALSE`, if pressing the Tab key should move the keyboard focus.

Since 2.4

### gtk_text_view_get_accepts_tab ()

    gboolean            gtk_text_view_get_accepts_tab       (GtkTextView *text_view);

Returns whether pressing the Tab key inserts a tab characters. `gtk_text_view_set_accepts_tab()`.

`text_view` : | A GtkTextView
Returns : | `TRUE` if pressing the Tab key inserts a tab character, `FALSE` if pressing the Tab key moves the keyboard focus.

Since 2.4

### gtk_text_view_get_default_attributes ()

    GtkTextAttributes*  gtk_text_view_get_default_attributes
                                                            (GtkTextView *text_view);

Obtains a copy of the default text attributes. These are the attributes used for text unless a tag overrides them. You'd typically pass the default attributes in to `gtk_text_iter_get_attributes()` in order to get the attributes in effect at a given text position.

The return value is a copy owned by the caller of this function, and should be freed.

`text_view` : | a GtkTextView
Returns : | a new GtkTextAttributes

### GTK_TEXT_VIEW_PRIORITY_VALIDATE

    #define GTK_TEXT_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)

The priority at which the text view validates onscreen lines in an idle job in the background.

## Property Details

### The `"accepts-tab"` property

      "accepts-tab"              gboolean              : Read / Write

Whether Tab will result in a tab character being entered.

Default value: TRUE

### The `"buffer"` property

      "buffer"                   GtkTextBuffer*        : Read / Write

The buffer which is displayed.

### The `"cursor-visible"` property

      "cursor-visible"           gboolean              : Read / Write

If the insertion cursor is shown.

Default value: TRUE

### The `"editable"` property

      "editable"                 gboolean              : Read / Write

Whether the text can be modified by the user.

Default value: TRUE

### The `"indent"` property

      "indent"                   gint                  : Read / Write

Amount to indent the paragraph, in pixels.

Default value: 0

### The `"justification"` property

      "justification"            GtkJustification      : Read / Write

Left, right, or center justification.

Default value: GTK_JUSTIFY_LEFT

### The `"left-margin"` property

      "left-margin"              gint                  : Read / Write

Width of the left margin in pixels.

Allowed values: >= 0

Default value: 0

### The `"overwrite"` property

      "overwrite"                gboolean              : Read / Write

Whether entered text overwrites existing contents.

Default value: FALSE

### The `"pixels-above-lines"` property

      "pixels-above-lines"       gint                  : Read / Write

Pixels of blank space above paragraphs.

Allowed values: >= 0

Default value: 0

### The `"pixels-below-lines"` property

      "pixels-below-lines"       gint                  : Read / Write

Pixels of blank space below paragraphs.

Allowed values: >= 0

Default value: 0

### The `"pixels-inside-wrap"` property

      "pixels-inside-wrap"       gint                  : Read / Write

Pixels of blank space between wrapped lines in a paragraph.

Allowed values: >= 0

Default value: 0

### The `"right-margin"` property

      "right-margin"             gint                  : Read / Write

Width of the right margin in pixels.

Allowed values: >= 0

Default value: 0

### The `"tabs"` property

      "tabs"                     PangoTabArray*        : Read / Write

Custom tabs for this text.

### The `"wrap-mode"` property

      "wrap-mode"                GtkWrapMode           : Read / Write

Whether to wrap lines never, at word boundaries, or at character boundaries.

Default value: GTK_WRAP_NONE

## Style Property Details

### The `"error-underline-color"` style property

      "error-underline-color"    GdkColor*             : Read

Color with which to draw error-indication underlines.

## Signal Details

### The `"backspace"` signal

    void                user_function                      (GtkTextView *text_view,
                                                            gpointer     user_data)      : Run Last / Action

The ::backspace signal is a keybinding signal which gets emitted when the user asks for it.

The default bindings for this signal are Backspace and Shift-Backspace.

`text_view` : | the object which received the signal
`user_data` : | user data set when the signal handler was connected.

### The `"copy-clipboard"` signal

    void                user_function                      (GtkTextView *text_view,
                                                            gpointer     user_data)      : Run Last / Action

The ::copy-clipboard signal is a keybinding signal which gets emitted to copy the selection to the clipboard.

The default bindings for this signal are Ctrl-c and Ctrl-Insert.

`text_view` : | the object which received the signal
`user_data` : | user data set when the signal handler was connected.

### The `"cut-clipboard"` signal

    void                user_function                      (GtkTextView *text_view,
                                                            gpointer     user_data)      : Run Last / Action

The ::cut-clipboard signal is a keybinding signal which gets emitted to cut the selection to the clipboard.

The default bindings for this signal are Ctrl-x and Shift-Delete.

`text_view` : | the object which received the signal
`user_data` : | user data set when the signal handler was connected.

### The `"delete-from-cursor"` signal

    void                user_function                      (GtkTextView  *text_view,
                                                            GtkDeleteType type,
                                                            gint          count,
                                                            gpointer      user_data)      : Run Last / Action

The ::delete-from-cursor signal is a keybinding signal which gets emitted when the user initiates a text deletion.

If the `type` is `GTK_DELETE_CHARS`, GTK+ deletes the selection if there is one, otherwise it deletes the requested number of characters.

The default bindings for this signal are Delete for deleting a character, Ctrl-Delete for deleting a word and Ctrl-Backspace for deleting a word backwords.

`text_view` : | the object which received the signal
`type` : | the granularity of the deletion, as a GtkDeleteType
`count` : | the number of `type` units to delete
`user_data` : | user data set when the signal handler was connected.

### The `"insert-at-cursor"` signal

    void                user_function                      (GtkTextView *textview,
                                                            gchar       *arg1,
                                                            gpointer     user_data)      : Run Last / Action

`textview` : | the object which received the signal.
`arg1` : |
`user_data` : | user data set when the signal handler was connected.

### The `"move-cursor"` signal

    void                user_function                      (GtkTextView    *text_view,
                                                            GtkMovementStep step,
                                                            gint            count,
                                                            gboolean        extend_selection,
                                                            gpointer        user_data)             : Run Last / Action

The ::move-cursor signal is a keybinding signal which gets emitted when the user initiates a cursor movement. If the cursor is not visible in `text_view`, this signal causes the viewport to be moved instead.

Applications should not connect to it, but may emit it with `g_signal_emit_by_name()` if they need to control scrolling programmatically.

The default bindings for this signal come in two variants, the variant with the Shift modifier extends the selection, the variant without the Shift modifer does not. There are too many key combinations to list them all here.

- Arrow keys move by individual characters/lines
- Ctrl-arrow key combinations move by words/paragraphs
- Home/End keys move to the ends of the buffer
- PageUp/PageDown keys move vertically by pages
- Ctrl-PageUp/PageDown keys move horizontally by pages

`text_view` : | the object which received the signal
`step` : | the granularity of the move, as a GtkMovementStep
`count` : | the number of `step` units to move
`extend_selection` : | `TRUE` if the move should extend the selection
`user_data` : | user data set when the signal handler was connected.

### The `"move-viewport"` signal

    void                user_function                      (GtkTextView  *text_view,
                                                            GtkScrollStep step,
                                                            gint          count,
                                                            gpointer      user_data)      : Run Last / Action

The ::move-viewport signal is a keybinding signal which can be bound to key combinations to allow the user to move the viewport, i.e. change what part of the text view is visible in a containing scrolled window.

There are no default bindings for this signal.

`text_view` : | the object which received the signal
`step` : | the granularity of the move, as a GtkMovementStep
`count` : | the number of `step` units to move
`user_data` : | user data set when the signal handler was connected.

### The `"page-horizontally"` signal

    void                user_function                      (GtkTextView *text_view,
                                                            gint         count,
                                                            gboolean     extend_selection,
                                                            gpointer     user_data)             : Run Last / Action

The ::page-horizontally signal is a keybinding signal which can be bound to key combinations to allow the user to initiate horizontal cursor movement by pages.

This signal should not be used anymore, instead use the "move-cursor" signal with the GTK_MOVEMENT_HORIZONTAL_PAGES granularity.

`text_view` : | the object which received the signal
`count` : | the number of `step` units to move
`extend_selection` : | `TRUE` if the move should extend the selection
`user_data` : | user data set when the signal handler was connected.

### The `"paste-clipboard"` signal

    void                user_function                      (GtkTextView *text_view,
                                                            gpointer     user_data)      : Run Last / Action

The ::paste-clipboard signal is a keybinding signal which gets emitted to paste the contents of the clipboard into the text view.

The default bindings for this signal are Ctrl-v and Shift-Insert.

`text_view` : | the object which received the signal
`user_data` : | user data set when the signal handler was connected.

### The `"populate-popup"` signal

    void                user_function                      (GtkTextView *textview,
                                                            GtkMenu     *arg1,
                                                            gpointer     user_data)      : Run Last

`textview` : | the object which received the signal.
`arg1` : |
`user_data` : | user data set when the signal handler was connected.

### The `"select-all"` signal

    void                user_function                      (GtkTextView *text_view,
                                                            gboolean     select,
                                                            gpointer     user_data)      : Run Last / Action

The ::select-all signal is a keybinding signal which gets emitted to select or unselect the complete contents of the text view.

The default bindings for this signal are Ctrl-a and Ctrl-/ for selecting and Shift-Ctrl-a and Ctrl-\ for unselecting.

`text_view` : | the object which received the signal
`select` : | `TRUE` to select, `FALSE` to unselect
`user_data` : | user data set when the signal handler was connected.

### The `"set-anchor"` signal

    void                user_function                      (GtkTextView *textview,
                                                            gpointer     user_data)      : Run Last / Action

`textview` : | the object which received the signal.
`user_data` : | user data set when the signal handler was connected.

### The `"set-scroll-adjustments"` signal

    void                user_function                      (GtkTextView   *textview,
                                                            GtkAdjustment *arg1,
                                                            GtkAdjustment *arg2,
                                                            gpointer       user_data)      : Run Last / Action

`textview` : | the object which received the signal.
`arg1` : |
`arg2` : |
`user_data` : | user data set when the signal handler was connected.

### The `"toggle-cursor-visible"` signal

    void                user_function                      (GtkTextView *text_view,
                                                            gpointer     user_data)      : Run Last / Action

The ::toggle-cursor-visible signal is a keybinding signal which gets emitted to toggle the visibility of the cursor.

The default binding for this signal is F7.

`text_view` : | the object which received the signal
`user_data` : | user data set when the signal handler was connected.

### The `"toggle-overwrite"` signal

    void                user_function                      (GtkTextView *text_view,
                                                            gpointer     user_data)      : Run Last / Action

The ::toggle-overwrite signal is a keybinding signal which gets emitted to change the editability of the text view.

The default bindings for this signal is Insert.

`text_view` : | the object which received the signal
`user_data` : | user data set when the signal handler was connected.

## See Also

GtkTextBuffer, GtkTextIter