Registerclassex error code 87

Returns an empty string if there is no error. std: : string GetLastErrorAsString( ) { / / Get the error message, if any. DWORD errorMessageID = : : GetLastError( ) ; if( errorMessageID = = 0) return. 関数が成功すると、 登録されたクラスを一意的に識別するアトムが返ります。 このアトム は、 CreateWindowEx 関数、 CreateWindowEx 関数、 および UnregisterClass 関数 でしか使用できません。 関数が失敗すると、 0 が返ります。 拡張エラー情報を取得するに. You failed to initialize this member before calling RegisterClassEx, which is presumably why that function is failing. The sizeof operator is all you. Working sample code:. lpszClassName = L" someclass" ; if (! RegisterClassEx( & wc) ) { MessageBox( NULL, L" Class registration has failed! Since I have moved the code into the Game class, window class registration fails. GetLastError( ) returns 87.

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  • Video:Error code registerclassex

    Registerclassex error code

    vertically or horizontally / / register the window class if(! RegisterClassEx( & wc) ) { / / this code is executed if the window class fails to register successfully. message to be displayed L" Fatal Error", / / title of the message box MB_ ICONEXCLAMATION | MB_ OK) ; / / type of message box, in this case it. I run the following code. The compiling was right, neither error nor waring. However, it threw error box " failed: GetLastError returned 87". I had tried WNDCLASS and RegisterClass functions, removed the two lines " wndclass. You are calling RegisterClassEx twice with the same argument. The second call will fail, since the class already exists, and GetLastError returns error code 1410 ( ERROR_ CLASS_ ALREADY_ EXISTS) 1). Solution: Register. Would i just copy and paste the code but replace WndProc with WndProc1, WndProc2, etc? , # include < Windows.

    h> / / Store handles to the main window and application / / instance globally. WS_ OVERLAPPEDWINDOW | WS_ HSCROLL, 0, 0, 500, 500, 0, 0, ghAppInst, 0) ; if ( ghMainWnd = = 0) { : : MessageBoxA( 0, " CreateWindow - Failed", 0, 0) ; return false ; } / / Step. A call to RegisterClassEx in my application is failing with error code 87, " The parameter is incorrect. " memset( & m_ wcx, 0, sizeof( WNDCLASSEX) ) ; m_ wcx. cbSize = sizeof( WNDCLASSEX) ; / / size of structure m_ wcx. style = WS_ ICONIC;. RegisterClass error in Unity Editor when using Mono. Could not register the window class, win32 error 0. dll as a reference, compile my code in Visual Studio and import the produced DLL in Unity. asked Apr 2 ' 12 at 0: 16. I think the 2nd class is SWFClass1 with IntPtr. Zero as a parent but it returns False when I try to unregister it even though the form. ただし「 ウィンドウ生成」 で解説したコードのように、 アプリケーションが終了すれば自動的 に有効なウィンドウは破棄.

    hIconSm = NULL; if (! RegisterClassEx( & wcx) ) { OutputDebugString( TEXT( " Error: ウィンドウクラスの登録ができません。.