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bool __fastcall SetWindowOpacity(HANDLE hHandle/*WinControl句柄*/,unsigned char Opacity/*不透明度0~255*/)
{
DWORD AStyle;
AStyle = GetWindowLong(hHandle, GWL_EXSTYLE);
if(AStyle&WS_EX_LAYERED!=WS_EX_LAYERED)
SetWindowLong(hHandle, GWL_EXSTYLE, AStyle | WS_EX_LAYERED);
return SetLayeredWindowAttributeshHandle, 0, Opacity,LWA_ALPHA) ;
}