对话方块 - windows编程基础

wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;

if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}

hwnd = CreateDialog (hInstance, szAppName, 0, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}

void ShowNumber (HWND hwnd, UINT iNumber)
{
TCHAR szBuffer[20] ;
wsprintf (szBuffer, TEXT ("%X"), iNumber) ;

SetDlgItemText (hwnd, VK_ESCAPE, szBuffer) ;
}

DWORD CalcIt (UINT iFirstNum, int iOperation, UINT iNum)
{
switch (iOperation)
{
case '=': return iNum ;
case '+': return iFirstNum + iNum ;
case '-': return iFirstNum - iNum ;
case '*': return iFirstNum * iNum ;
case '&': return iFirstNum & iNum ;
case '|': return iFirstNum | iNum ;
case '^': return iFirstNum ^ iNum ;
case '<': return iFirstNum << iNum ;
case '>': return iFirstNum >> iNum ;
case '/': return iNum iFirstNum / iNum: MAXDWORD ;
case '%': return iNum iFirstNum % iNum: MAXDWORD ;
default : return 0 ;
}
}

LRES

对话方块(四十八)