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GdPictureImaging.TwainGetAvailableBrightnessCount Method

Returns the number of available brightness values which can be used by the opened source in its current configuration.

C#
public int TwainGetAvailableBrightnessCount();
Visual Basic
Public Function TwainGetAvailableBrightnessCount() As Integer
Returns

If Success, non zero: The number of available brightness values. Else 0 if fail. Use TwainGetLastResultCode() and TwainGetLastConditionCode() functions for diagnosing the error.

Before using this function check that the TWAIN state is >= 4 (TWAIN_SOURCE_OPEN) 

To get the TWAIN state, use the TwainGetState() function.

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