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GLFW_MAXIMIZED hint not working on Windows in version 3.3 #1499

dougbinks opened this issue Jun 13, 2019 · 1 comment


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commented Jun 13, 2019

Reported on our forums in post Maximising Window differences from 3.2 to 3.3 .

I have confirmed the issue and have a fix in testing which I'll create a PR for shortly, however this turns out to be a slightly complex and subtle area.


When the window hint GLFW_MAXIMIZED is set to GLFW_TRUE and a window is created it appears with maximized style but not with a maximized size.

It should instead appear maximized as well as in the maximized style.


Related to issue #780.


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commented Jun 13, 2019

The simplest solution I can see is to alter _glfwPlatformShowWindow() to:

void _glfwPlatformShowWindow(_GLFWwindow* window)
	if (window->win32.maximized)
		ShowWindow(window->win32.handle, SW_MAXIMIZE);
		ShowWindow(window->win32.handle, SW_SHOWNA);

Currently this means any maximized window would then be focused, as SW_MAXIMIZE will activate the window and there is no maximize without activate option that I can see. This makes sense as a newly created maximized window would cover all other windows.

dougbinks added a commit to dougbinks/glfw that referenced this issue Jun 14, 2019

@elmindreda elmindreda self-assigned this Jun 17, 2019

@elmindreda elmindreda added this to the 3.3.1 milestone Jun 19, 2019

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