Process Control Function

int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow);

int wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow);

int _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow);

Internationalization (I18n) Function Overview

The WinMain function is the main entry point for a Windows-based application, called with the instance handle of the application, the null-terminated command line string, and a control flag for the display window. WinMain should return the exit value contained in the WM_QUIT message's wParam parameter if it succeeds; otherwise, if it terminates before entering the message loop, it sould return zero.

wWinMain is the wide-character version of WinMain that supports a null-terminated wide-character command line string.

_tWinMain is the Windows-only Generic version of the function; with the _MBCS or _UNICODE compiler flags determining its mapping to either WinMain or wWinMain.

See the MSDN library for more information.

I18n Issues

Use the appropriate version of the function as required for internationalization support.

Recommended Replacements*

Microsoft Windows MBCS	WinMain
Microsoft Windows Unicode	wWinMain
Microsoft Windows Generic	_tWinMain

Process Control Functions