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I need a dummy window in MSVC++, this will never be visible and is created even before the app's main window. It's required by a rendering engine. So I'd rather not have to register a class if possible.
For testing it would be better to make it visible to prove it is there - can I use a static or a button or something? I've been trying with CreateWindow() but while I am getting a return value, nothing visible is appearing.
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Just make hInstance = NULL when registering the class and pass NULL to CreateWindow() and you're good to go.
HWND is a "handle to a window" and is part of the Win32 API . HWNDs are essentially pointers (IntPtr) with values that make them (sort of) point to a window-structure data. In general HWNDs are part an example for applying the ADT model.
I submit my own test code for critique:
HWND dummyHWND = ::CreateWindowA("STATIC","dummy",WS_VISIBLE,0,0,100,100,NULL,NULL,NULL,NULL);
::SetWindowTextA(dummyHWND,"Dummy Window!");
It seemed to work...
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