gtkTextViewAddChildInWindow: gtkTextViewAddChildInWindow
Description
Adds a child at fixed coordinates in one of the text widget's
windows. The window must have nonzero size (see
gtkTextViewSetBorderWindowSize). 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 gtkTextViewMoveChild 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.Usage
gtkTextViewAddChildInWindow(object, child, which.window, xpos, ypos)
Arguments
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