Description Pixmaps are offscreen drawables. They can be drawn upon with the standard drawing primitives, then copied to another drawable (such as a GdkWindow) with gdk_pixmap_draw(). The depth of a pixmap is the number of bits per pixels. Bitmaps are simply pixmaps with a depth of 1. (That is, they are monochrome bitmaps - each pixel can be either on or off). GTK 3 will remove GdkPixmap and GdkBitmap. You should use cairo surfaces instead. However, because a lot of functions still use these types, they are not deprecated.