Added additional check in CreateWindowExA

carxt · carxt · commit 13a203bf4e8f · 2021-01-02T00:21:45.000+01:00
diff --git a/BorderlessAddon/dllmain.cpp b/BorderlessAddon/dllmain.cpp
@@ -75,7 +75,7 @@ namespace FunctionHooks
 			dwExStyle &= ~(WS_EX_OVERLAPPEDWINDOW | WS_EX_TOPMOST);
 			HWND result = CreateWindowExA(dwExStyle, lpClassName, lpWindowName, dwStyle, X, Y,
 				nWidth, nHeight, hWndParent, hMenu, hInstance, lpParam);
-			if (!mainWindow) mainWindow = result;
+			if (!mainWindow || !::IsWindow(mainWindow)) mainWindow = result;
 			return result;
 		}
 		else return CreateWindowExA(dwExStyle, lpClassName, lpWindowName, dwStyle, X, Y,

Original file line number	Diff line number	Diff line change
`@@ -75,7 +75,7 @@ namespace FunctionHooks`
`75`	`75`	`dwExStyle &= ~(WS_EX_OVERLAPPEDWINDOW \| WS_EX_TOPMOST);`
`76`	`76`	`HWND result = CreateWindowExA(dwExStyle, lpClassName, lpWindowName, dwStyle, X, Y,`
`77`	`77`	`nWidth, nHeight, hWndParent, hMenu, hInstance, lpParam);`
`78`		`- if (!mainWindow) mainWindow = result;`
	`78`	`+ if (!mainWindow \|\| !::IsWindow(mainWindow)) mainWindow = result;`
`79`	`79`	`return result;`
`80`	`80`	`}`
`81`	`81`	`else return CreateWindowExA(dwExStyle, lpClassName, lpWindowName, dwStyle, X, Y,`