DTWAIN_IsLightSourceSupported

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The DTWAIN_IsLightSourceSupported function checks if a Source supports setting the light source.

DTWAIN_BOOL DTWAIN_IsLightSourceSupported ( DTWAIN_SOURCE Source );

Parameters

Source

Specifies an open TWAIN Source.

Return Values

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

Comments

The DTWAIN_IsLightSourceSupported function takes the open Source Source, and checks to see if setting the light source is supported. If the Source supports setting the light source, the DTWAIN_SetLightSource function allows an application to set the light source.

Some scanners have the ability to use a different light source or lamp, and DTWAIN_IsLightSourceSupported checks for the ability to use a different lamp or set of lamps when acquiring images.

TWAIN State Transitions

The source must be opened in State 4

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function