I was wondering if its possible to capture a window using opengl. I am trying to capture a screenshot of an game using opengl. If its runing in software mode its no problem but when i change to opengl, i keep getting an black bmp. I tried to use opengl 
    use SDL::App;
    use SDL::OpenGL;


    my $file = $x.'screenshot.bmp';

    glReadBuffer(GL_FRONT);
    my $data = glReadPixels(0, 0, '1024', '768', GL_BGR,
                            GL_UNSIGNED_BYTE);
    SDL::OpenGL::SaveBMP($file, '1024', '768', 24, $data);

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but it stays black. =(

In reply to Capture opengl screen by iea

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