The gdk_imlib directory contains the Win32 port of gdk_imlib, which is the GDK version of Rasterman's Imlib. Originally gdk_imlib, in spite of its name, contained lots of Xlib calls, and very little GDK calls. I of course had to remove them all for the Win32 port, and replace them with GDK. GDK was after all originally mostly a wrapper around Xlib, so most of the X structures and calls used have direct GDK equivalents.
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