GdPictureImaging.TwainGetAvailableImageFileFormatNo Method

Returns an available image file format value which can be used by the opened source in its current configuration for file transfer mode.

public TwainImageFileFormats TwainGetAvailableImageFileFormatNo(
    int Number
);

Visual Basic

Public Function TwainGetAvailableImageFileFormatNo(
    ByVal Number As Integer
) As TwainImageFileFormats

Parameters

Parameters	Description
Number	Index of the available file format value. Must be a value between 1 and TwainGetAvailableImageFileFormatCount() returned value.

Returns

If fail, returns -1 else if success, The selected file format value. A member of the TwainImageFileFormats enumeration.

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

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