E) ;
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_TIMER:
InvalidateRect (hwnd, NULL, TRUE) ;
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
SetMapMode (hdc, MM_ISOTROPIC) ;
SetWindowExtEx (hdc, 276, 72, NULL) ;
SetViewportExtEx (hdc, cxClient, cyClient, NULL) ;
SetWindowOrgEx (hdc, 138, 36, NULL) ;
SetViewportOrgEx (hdc, cxClient / 2, cyClient / 2, NULL) ;
SelectObject (hdc, GetStockObject (NULL_PEN)) ;
SelectObject (hdc, hBrushRed) ;
DisplayTime (hdc, f24Hour, fSuppress) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
KillTimer (hwnd, ID_TIMER) ;
DeleteObject (hBrushRed) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
DIGCLOCK视窗如图8-1所示。
虽然，在图8-1中您看不到时钟的数字是红色的。DIGCLOCK的视窗讯息处理程式在处理WM_CREATE讯息处理期间建立了一个红色的画刷并在处理WM_DESTROY讯息处理期间清除它。WM_CREATE讯息也为DIGCLOCK设定了一个一秒的计时器，该计时器在处理WM_DESTROY讯息处理期间被终止（待会将讨论对GetLocaleI |