GdPictureImaging.TwainSetCompression Method

Tries to set the current image compression to use by the selected twain source for file transfer mode.

Since only certain file formats support compression, this capability must be negotiated after setting the desired file format with the TwainSetImageFileFormat() function.

public Boolean TwainSetCompression(
    TwainCompression Compression
);

Visual Basic

Public Function TwainSetCompression(
    ByVal Compression As TwainCompression
) As Boolean

Parameters

Parameters	Description
Compression	Image compression. A member of the TwainCompression enumeration.

Returns

True if success, else False -> Use TwainGetLastResultCode() and TwainGetLastConditionCode() functions for diagnosing the error.

Remarks

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

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