TwainSetBitDepth Method (GdPictureImaging)

In This Topic

Specifies the number of bit per pixel for the current value of PixelType.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function TwainSetBitDepth( _
   ByVal BitDepth As Integer _
) As Boolean

public bool TwainSetBitDepth( 
   int BitDepth
)

public function TwainSetBitDepth( 
    BitDepth: Integer
): Boolean;

public function TwainSetBitDepth( 
   BitDepth : int
) : boolean;

public: bool TwainSetBitDepth( 
   int BitDepth
)

public:
bool TwainSetBitDepth( 
   int BitDepth
)

Parameters

BitDepth: Bit Depth.

Return Value

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

Remarks

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

Ambiguity in the Specification prior to version 2.2 may result in some Data Sources reporting just the depth-per-channel. In the majority of cases a value of 8 for ICAP_BITDEPTH when ICAP_PIXELTYPE is TWPT_RGB may be treated as if the bit depth is really 24.

Reference

GdPictureImaging Class
GdPictureImaging Members
TwainGetState Method
TwainGetBitDepth Method