DTWAIN_GetBitDepthEx

The DTWAIN_GetBitDepthEx function gets the current number of bits per pixel for the next acquired images.

LONG DTWAIN_GetBitDepthEx (

DTWAIN_SOURCE	Source,
DTWAIN_BOOL	bGetCurrent );

Parameters

Source

An open TWAIN Source.

bGetCurrent

Determines whether to get the current bit depth or the default bit depth

Return Values

If successful, the bits-per-pixel for the next acquired image is returned. On failure, -1 is returned. Call DTWAIN_GetLastError() to get extended information.

Comments

The DTWAIN_GetBitDepthEx function performs the same functionality as DTWAIN_GetBitDepth, with the difference being that the bit depth is returned as a LONG instead of the user providing a pointer to a LONG as a parameter.

TWAIN State Transitions

The Source must be in State 4 or higher

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function