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Win32: Change transparent framebuffer key color
This is a temporary fix while we determine if the color key workaround
should be removed completely. See issue thread for discussion.
Related to #1512.
(cherry picked from commit c88ee1c9d3
)
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@ -234,6 +234,13 @@ alpha channel will be used to combine the framebuffer with the background. This
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does not affect window decorations. Possible values are `GLFW_TRUE` and
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`GLFW_FALSE`.
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@par
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@win32 GLFW sets a color key for the window to work around repainting issues
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with a transparent framebuffer. The chosen color value is RGB 255,0,255
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(magenta). This will make pixels with that exact color fully transparent
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regardless of their alpha values. If this is a problem, make these pixels any
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other color before buffer swap.
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@anchor GLFW_FOCUS_ON_SHOW_hint
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__GLFW_FOCUS_ON_SHOW__ specifies whether the window will be given input
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focus when @ref glfwShowWindow is called. Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
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@ -411,7 +411,7 @@ static void updateFramebufferTransparency(const _GLFWwindow* window)
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// issue. When set to black, something is making the hit test
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// not resize with the window frame.
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SetLayeredWindowAttributes(window->win32.handle,
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RGB(0, 193, 48), 255, LWA_COLORKEY);
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RGB(255, 0, 255), 255, LWA_COLORKEY);
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}
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DeleteObject(region);
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