DTWAIN_IsMaxBuffersSupported

Top Previous Next

The DTWAIN_IsMaxBuffersSupported function checks if a Source supports setting of the number of pages to buffer for high-speed scanning.

DTWAIN_BOOL DTWAIN_IsMaxBuffersSupported (

DTWAIN_SOURCE	Source,
LONG	NumBuffers );

Parameters

Source

Specifies an open TWAIN Source.

NumBuffers

Specifies the number of pages to test to see if the device supports it, or DTWAIN_ANYSUPPORT

Return Values

If setting of the batch buffers is supported for the Source, TRUE is returned. Otherwise FALSE is returned.

Comments

The DTWAIN_IsMaxBuffersSupported function takes the open Source Source, and checks to see if the buffers setting NumBuffers is supported. The NumBuffers must be greater than 1. If NumBuffers is DTWAIN_ANYSUPPORT, DTWAIN_IsMaxBuffersSupported returns whether the Source supports setting the batch buffers, regardless of the number of pages to buffer.

The number of pages to buffer is a major component of high-speed scanning.

TWAIN State Transitions

The source must be opened in State 4

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function