void static AdjustBrightness(BYTE bBrightNess) { bool bRet = FALSE; HANDLE hDevBKL; DWORD dwPercent=(DWORD)bBrightNess*6.4; //3; hDevBKL = CreateFile(_T("BKL1:"), GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, 0); bRet = DeviceIoControl(hDevBKL, IOCTL_BKL_SET_INTENSITY, &dwPercent, sizeof(dwPercent), NULL, 0, NULL, NULL); if(!bRet) { SetLastError(GetLastError()); }
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