> I've got a 320x240 image in raw rgb values that I want to display. Is
> there anyway to do this directly without first converting it to
> something like a pixmap? ...
Unless you use some other API such as OpenGL, you probably do need to
use a Pixmap. You can, of course, write the image directly to the
Window with XPutImage, which will take as the Drawable arguement
either a Pixmap or a Window XID, but then you'll have to handle any
Expose events to redraw the image if part of the Window is obscured
and later exposed. Since this means a trip to the server each time,
it's better to use the Pixmap since Pixmaps are handled in the server
itself.
One word of warning -- if you want your code to be portable to other
systems, you should query the allowable depths and Pixmap formats with
XListDepths() and XListPixmapFormats(). On some machines an RGB
pixels is 4 bytes rather than three (to allow for an Alpha channel,
for instance).
spl
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