请问用什么消息或什么函数来驱动屏保？

[skzd]

[playpcgame]

使用函数
ScreenSaverProc
DefScreenSaverProc

The following table describes how the DefScreenSaverProc processes a variety of window messages.

WM_ACTIVATE, WM_ACTIVATEAPP, WM_NCACTIVATE
Closes the screen saver if the wParam parameter is FALSE. A wParam value of FALSE indicates that the screen saver is losing the input focus. The screen saver is closed by sending aWM_CLOSE message.
WM_SETCURSOR
Removes the cursor from the screen by setting the cursor to NULL.
WM_LBUTTONDOWN, WM_RBUTTONDOWN, WM_MBUTTONDOWN,WM_KEYDOWN, WM_KEYUP, WM_MOUSEMOVE
Calls thePostQuitMessage function to close the screen saver.
WM_DESTROY
Posts a WM_CLOSE message to close the screen saver window.
WM_SYSCOMMAND
Returns FALSE if the wParam parameter of WM_SYSCOMMAND is either SC_CLOSE or SC_SCREENSAVE.

[Wingsun]

如下：
bool b;
if (! SystemParametersInfo(SPI_GETSCREENSAVEACTIVE,0,&b,0))
return;
if (!b)
return;
PostMessage(GetDesktopWindow(),WM_SYSCOMMAND,SC_SCREENSAVE,0);

[sean]

激活屏保是这样的，可是
如何在程序中关掉有密码保护的屏保呢？

[知行职场-雷曼]

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