如题
void __fastcall TForm1::Button3Click(TObject *Sender)
{
// 允许 9x 下我不知道行不行,但是 2K、XP 是可以的
// 屏保
SystemParametersInfo ( SPI_SETSCREENSAVEACTIVE, true, NULL, SPIF_SENDCHANGE );
// 显示器电源
SystemParametersInfo ( SPI_SETLOWPOWERACTIVE, true, NULL, SPIF_SENDCHANGE );
// 待机
SystemParametersInfo ( SPI_SETPOWEROFFACTIVE, true, NULL, SPIF_SENDCHANGE );
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button4Click(TObject *Sender)
{
// 不允许
SystemParametersInfo ( SPI_SETSCREENSAVEACTIVE, false, NULL, SPIF_SENDCHANGE );
SystemParametersInfo ( SPI_SETLOWPOWERACTIVE, false, NULL, SPIF_SENDCHANGE );
SystemParametersInfo ( SPI_SETPOWEROFFACTIVE, false, NULL, SPIF_SENDCHANGE );
}