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Gawee

Window creation failed!

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I am a beginner at win32 api and need some help... Here is the code: #include <windows.h> const char g_szClassName[]="my class"; LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam); int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { HWND hwnd; MSG msg; WNDCLASSEX wc; wc.cbSize = sizeof(WNDCLASSEX); wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION); wc.hInstance = hInstance; wc.lpfnWndProc = WndProc; wc.lpszClassName = g_szClassName; wc.lpszMenuName = NULL; wc.style = 0; if(!RegisterClassEx(&wc)) { MessageBox(NULL, "Window register failed!", "Error!", MB_OK | MB_ICONEXCLAMATION); return 0; } hwnd = CreateWindowEx(WS_EX_CLIENTEDGE, g_szClassName, "Software", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); if(hwnd==NULL) { MessageBox(NULL, "Window creation failed!", "Error!", MB_OK | MB_ICONEXCLAMATION); return 0; } ShowWindow(hwnd, nCmdShow); UpdateWindow(hwnd); while(GetMessage(&msg,NULL, 0, 0) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch(msg) { case WM_CLOSE: DestroyWindow(hwnd); break; case WM_DESTROY: PostQuitMessage(0); break; default: DefWindowProc(hwnd, msg, wParam, lParam); } return 0; } Why is it that it doesn't create a simple window? Seems to me that it is syntactically correct... Any help would be appreciated... THNX...

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Hey, put big chunks of code like that in between source tags like so.


//this will be inside a nice white box
std::cout<<"Hello! Use Source tags!;
//now close the source tag



You do that by this:
[ source] [ /source] (except take the space out between [ and source, and [ and /). This will make your code be easier to read for people helping you

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True.


default:
DefWindowProc(hwnd, msg, wParam, lParam);


should be


default:
return DefWindowProc(hwnd, msg, wParam, lParam);


Hope that helps. Next time post the errors you get to help us out.

Cheers
Jacob

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