Question

#include <windows.h>
int PASCAL WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow )
{
    MessageBeep(MB_ICONEXCLAMATION);
    return 0;
};

WinMain proc near
    push bp
    mov bp, sp
    mov ax, 30h ; ’0’ ; MB_ICONEXCLAMATION constant
    push ax
    call MESSAGEBEEP
    xor ax, ax ; return 0
    pop bp
    retn 0Ah
WinMain endp

到现在为止，看起来都很简单。