VCEANCB_setContrast
The VCEANCB_setContrast sets contrast adjustment level.
VCEANCB_Error VCEANCB_setContrast ( HANDLE hVCEANCB, // Handle to card signed char contrast // Contrast level );
Parameter:
- hVCEANCB
- [in] Handle to FrameGrabber.
- contrast
- [in] Contrast level
Return values:
If function succeeds, the return value is VCEANCB_Err_Success.
If function fails, the return value can be one of the following values.
VCEANCB_Err_badArgument | hVCEANCB handle or pCameraConfig pointer is bad (possibly NULL). |
VCEANCB_Err_UnknownError | Error is unknown (possibly system error). To get extended error information, call VCEANCB_SystemLastError. |
Remarks:
This function sets contrast adjustment level.
Constatnt | Value | Description |
---|---|---|
VCEANCB_ContrastMax | 127 | Maximum constrast level (equal to 1.984) |
VCEANCB_ContrastMin | 0 | Minimum contrast level (equal to 0.0) |
VCEANCB_ContrastDef | 68 | ITU contrast level (equal to 1.063) |