You are here: GdPicture.NET > Documentation > Classes > GdPictureImaging Class > GdPictureImaging Methods > TWAIN Features > TwainGetResolution Method
Returns the current resolution in Dot per inch of the selected scanner.
public int TwainGetResolution();
Public Function TwainGetResolution() As Integer
If success, non-zero value. If fail, -1 -> 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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