DTWAIN_IsLightPathSupported

The DTWAIN_IsLightPathSupported function checks if a Source supports setting the light path to reflective or transmissive.

DTWAIN_BOOL DTWAIN_IsLightPathSupported ( DTWAIN_SOURCE Source );

Parameters

Source

Specifies an open TWAIN Source.

Return Values

If the Source supports a light path, TRUE is returned.  Otherwise FALSE is returned.

Comments

The DTWAIN_IsLightPathSupported function takes the open Source Source, and checks to see if setting the light path is supported.  If the Source supports setting the light path, the DTWAIN_SetLightPath function allows an application to set the light path.

Depending on the setting of the light path, the TWAIN device can acquire film and transparencies (transmissive), or normal paper scanning (reflective).

TWAIN State Transitions

The source must be opened in State 4

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function

See Also

Films and Transparencies