DTWAIN_IsThumbnailEnabled

The DTWAIN_IsThumbnailEnabled function checks if acquiring thumbnail images has been enabled.

DTWAIN_BOOL DTWAIN_IsThumbnailEnabled ( DTWAIN_SOURCE Source );

Parameters

Source

Specifies an open TWAIN Source.

Return Values

If acquiring thumbnail images has been enabled, TRUE is returned.  Otherwise FALSE is returned.

Comments

The DTWAIN_IsThumbnailEnabled function takes the open Source Source, and checks to see if acquiring thumbnail images has been enabled.  By default, thumbnail images are disabled.

Note that few Sources support thumbnail images.  To check if the Source supports thumbnail images, call DTWAIN_IsThumbnailSupported.  To turn on or off thumbnail images, call DTWAIN_EnableThumbnail.

TWAIN State Transitions

The source must be opened in State 4

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function