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 | int WINAPI wWinMain(...)
{
	MyInitCommonControls();
 
	MyRegisterClass(hInst); // avec WindowProc
 
	InitInstance(hInst, nCmdShow);
 
	MessageLoop();
}
 
LRESULT CALLBACK WindowProc(...)
{
	switch (uMsg)
	{
		...
 
		case WM_COMMAND:
		{
			witch (LOWORD(wParam))
			{
				...
 
				CASE IDM_MENU_TEST:
				{
					MyRegisterClass_child(hInst); // avec WindowProc_child - j'ignore si je dois enregistrer toutes les classes dans wWinMain
 
					InitInstance_child(hInst, nCmdShow); 
 
					MessageLoop_child()
				}
 
				...
			}
		}
 
		...
	}
}
 
LRESULT CALLBACK WindowProc_child(...)
{
	switch (uMsg)
	{
		...
 
	}
}
 
//-----------------------------------------------
 
 
ATOM MyRegisterClass_child(hInst)
{
	WNDCLASSEX wcex = { };
	wcex.cbSize = sizeof(WNDCLASSEX);
	wcex.style = CS_HREDRAW | CS_VREDRAW; //CS_DBLCLKS; // CS_HREDRAW | CS_VREDRAW; // UNIT    style                                
	wcex.lpfnWndProc = EditProc;   // WNDPROC
	// int     cbClsExtra
	// int     cbWndExtra
	wcex.hInstance = hInst;      // HINSTANCE
	wcex.hbrBackground = (HBRUSH)COLOR_BTNSHADOW; // HCURSOR hCursor
	// HBRUSH  hbrBackground
	// LPCSTR  lpzMenuName
	wcex.lpszClassName = CHILD_WINDOW_CLASS; // LPCSTR
 
	return RegisterClassEx(&wcex);
}
 
HWND InitInstance_child(hInst, nCmdShow)
{
	HWND hwnd_child = CreateWindowEx
	(
		NULL,
		CHILD_WINDOW_CLASS,
		L"Child window",
		WS_SIZEBOX | WS_CLIPSIBLINGS,//WS_CHILD | WS_POPUP | WS_VISIBLE,
		225, 65,
		150, 24,
		NULL,
		NULL,
		hInst,
		NULL
	);
 
	return hwnd_child;
} | 
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