Sets the background pixmap of window. May also be used to set a
background of "None" on window, by setting a background pixmap
of NULL.
A background pixmap will be tiled, positioning the first tile at
the origin of window, or if parent_relative is TRUE, the tiling
will be done based on the origin of the parent window (useful to
align tiles in a parent with tiles in a child).
A background pixmap of NULL means that the window will have no
background. A window with no background will never have its
background filled by the windowing system, instead the window will
contain whatever pixels were already in the corresponding area of
the display.
The windowing system will normally fill a window with its background
when the window is obscured then exposed, and when you call
gdk_window_clear().
Sets the background pixmap of window. May also be used to set a background of "None" on window, by setting a background pixmap of NULL. A background pixmap will be tiled, positioning the first tile at the origin of window, or if parent_relative is TRUE, the tiling will be done based on the origin of the parent window (useful to align tiles in a parent with tiles in a child). A background pixmap of NULL means that the window will have no background. A window with no background will never have its background filled by the windowing system, instead the window will contain whatever pixels were already in the corresponding area of the display. The windowing system will normally fill a window with its background when the window is obscured then exposed, and when you call gdk_window_clear().