: I try to draw transparency PNG images in my nano-X application but all : the time the transparency's part of it is displayed in black..
Make sure you're using the CVS code, as there were earlier bugs in transparency. v0.90 is definitely buggy. : I tried to display it on an window created by : GrNewWindow(GR_ROOT_WINDOW_ID, 0, 0, 480, 640, 0, WHITE, BLACK); Using BLACK here is a bad idea, as you can't tell whether the transparency is being drawn BLACK, or whether BLACK is showing through. I don't have the source code handy, but each image decoder handles transparency differently. I know we support GIF transparency, I'm not sure whether PNG was added. And below you're saying the .xpm works. You can check the source looking for ".transcolor" or "->transcolor" being set to something other than NOCOLOR. The decoders then don't draw a pixel when the image color matches transcolor. : : I tried with GrLoadImageFromFile plus GrDrawImageToFit and with : GrDrawImageFromFile too, and same result. Yes, each of these use the same decoder, depending on image type. Regards, Greg : When I convert this image in .xpm and use the same code (just changing : th extension of the file to load) everything gonna be ok. : : Can anybody help me please ? : : Regards, : : Vincent BRACH : : : : : : : --------------------------------------------------------------------- To unsubscribe, e-mail: nanogui-unsubscr...@linuxhacker.org For additional commands, e-mail: nanogui-h...@linuxhacker.org
