What does "WINAPI" in main function mean?
C++CWindowsWinapiWinmainC++ Problem Overview
Could you please explain to me the WINAPI word in the WinMain() function?
In the simplest way..
#include <windows.h>
int -->WINAPI<-- WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)
{
MessageBox(NULL, "Goodbye, cruel world!", "Note", MB_OK);
return 0;
}
Is it just some Windows funky mode?
What does it do? Or rather what is this C++ feature I haven't encountered yet?
C++ Solutions
Solution 1 - C++
WINAPI is a macro that evaluates to __stdcall, a Microsoft-specific keyword that specifies a calling convention where the callee cleans the stack. The function's caller and callee need to agree on a calling convention to avoid corrupting the stack.
Solution 2 - C++
WINAPI is a macro that expands to __stdcall which means that the callee cleans the stack.
Solution 3 - C++
This is a macro definition intended to denote the Windows calling convention. From MSDN:
> The way the name is decorated depends > on the language and how the compiler > is instructed to make the function > available, that is, the calling > convention. The standard inter-process > calling convention for Windows used by > DLLs is known as the WinAPI > convention. It is defined in Windows > header files as WINAPI, which is in > turn defined using the Win32 > declarator __stdcall.
Solution 4 - C++
It's Windows-specific. It specifies the calling convention. WinMain gets called by Windows, and this ensures that the caller and callee agree on the calling convention.