Alexei Babich wrote: > Hello, all. > > Having executed a piece of code listed below, I get a green window (as a > result of calling XCreateSimpleWindow()) and a black rectangle on top of it > (XRenderFillRectangle()). I still get just black, whatever color I set in the > 'col' structure. > XRenderFindVisualFormat() points to the data field shown on the screenshot > attached to this letter. > Why doesn't the color of the rectangle depend on the 'col' parameters? > > //some color > col.red = 0; > col.green = 127; > col.blue = 250; > col.alpha = 250;
XRender uses 16-bit colors. If you multiply these numbers by 257 you should be fine. I would use 0xffff for the alpha value, though, if the intention is to make the rectangle fully opaque. Also, unless there is a specific reason to use XRender directly, I would recommend using the higher-level cairo library instead. _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
