fix race condition when creating a window failed on Windows

skelterjohn / go.wde

Windows, drawing and events for Go

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fix race condition when creating a window failed on Windows #41

Closed BenLubar closed 9 years ago

BenLubar commented 9 years ago

If makeTheWindow returned an error, w would be nil and HandleWndMessages would dereference w for this.hwnd before the error could be handled.