DTWAIN_GetLightPathEx

The DTWAIN_GetLightPathEx retrieves the current light path (reflective or transmissive).

LONG DTWAIN_GetLightPathEx ( DTWAIN_SOURCE Source );

Parameters

Source

Return Values

If successful, the light path currently in use is returned. On failure, -1 is returned. Call DTWAIN_GetLastError() to get extended information.

Comments

The DTWAIN_GetLightPathEx function performs the same functionality as DTWAIN_GetLightPath, with the difference being that the light path type 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