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feat: add transparency to framebuffer on linux #2172

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feat: add transparency to framebuffer on linux #2172

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10 changes: 8 additions & 2 deletions src/mvViewport_linux.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -142,6 +142,12 @@ mvShowViewport(mvViewport& viewport, bool minimized, bool maximized)
glfwSetErrorCallback(glfw_error_callback);
glfwInit();

// specifies whether the window framebuffer will be transparent
// if enabled and supported by the system, the window framebuffer
// alpha channel will be used to combine the framebuffer with
// the background (this does not affect window decorations).
glfwWindowHint(GLFW_TRANSPARENT_FRAMEBUFFER, GLFW_TRUE);

if (!viewport.resizable)
glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
if (viewport.alwaysOnTop)
Expand Down Expand Up @@ -221,13 +227,13 @@ mvShowViewport(mvViewport& viewport, bool minimized, bool maximized)

// Setup Platform/Renderer bindings
ImGui_ImplGlfw_InitForOpenGL(viewportData->handle, true);


// Setup callbacks
glfwSetWindowSizeCallback(viewportData->handle, window_size_callback);
glfwSetWindowCloseCallback(viewportData->handle, window_close_callback);
}

void
mvMaximizeViewport(mvViewport& viewport)
{
Expand Down