GtkImage widget displaying a image with a mask.
A GdkImage is a client-side image buffer in the pixel format of the
current display. The GtkImage does not assume a reference to the
image or mask; you still need to unref them if you own references.
GtkImage will add its own reference rather than adopting yours.gtkImageNewFromImage(image = NULL, mask = NULL, show = TRUE)imageGdkImage, or NULL. [ allow-none ]maskGdkBitmap, or NULL. [ allow-none ]