Set contrast in device.
|val ||An integer in the range 0-65535. |
- FALSE if the device is closed or the call failed.
The value returned by GetContrast may be slightly different from what is set with SetContrast.
Definition at line 1144 of file VideoDevice.cc.
if (CamFD < 0)
VPic.contrast = val & 0xffff;
if (ioctl(CamFD, VIDIOCSPICT, &VPic) < 0)