Createwindow Failed Error 0
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Createwindowex Example
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Getlasterror 1407
Sign up CreateWindowEx function fails but GetLastError() returns ERROR_SUCCESS up vote 8 down vote favorite 1 I am trying to create a simple window with C/C++ using the native Windows message queue system (without .NET). I followed the MSDN tutorial and wrote some basic code that creates an empty window: void main() { HINSTANCE hinst; HWND hwndMain; WNDCLASSEX wnd; MSG msg; hinst
Createwindow Vs Createwindowex
= GetModuleHandle( NULL ); memset( &wnd, 0, sizeof( wnd ) ); wnd.cbSize = sizeof( wnd ); wnd.lpszClassName = "MainWClass"; wnd.lpfnWndProc = MainWProc; wnd.hInstance = hinst; int result = RegisterClassEx( &wnd ); if( !result ) { printf("RegisterClassEx error: %d\r\n", GetLastError() ); } hwndMain = CreateWindowEx ( 0, //extended styles wnd.lpszClassName, //class name "Main Window", //window name WS_OVERLAPPEDWINDOW | WS_HSCROLL | WS_VSCROLL | WS_MINIMIZEBOX, //style tags CW_USEDEFAULT, //horizontal position CW_USEDEFAULT, //vertical position CW_USEDEFAULT, //width CW_USEDEFAULT, //height (HWND) NULL, //parent window (HMENU) NULL, //class menu (HINSTANCE) wnd.hInstance, //some HINSTANCE pointer NULL //Create Window Data? ); if( !hwndMain ) { printf("Oh shi- %d\n", GetLastError() ); } ShowWindow( hwndMain, SW_SHOWDEFAULT ); UpdateWindow( hwndMain ); } When I run/debug the program, CreateWindowEx returns 0 which means it failed. This triggers the error message "Oh shi- [error code]". The most confusing part is that the error message prints to console: Oh shi- 0 The error code returned by GetLastError() is 0, which is ERROR_SUCCESS! I am at a total loss; what is happening? I am so confuse... P.S. I am using Visual C++ Express 2010 on Windows 7 32-bit. I have w
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