DTWAIN_GetDuplexTypeEx

The DTWAIN_GetDuplexTypeEx function gets the duplex mode that is supported by the Source.

LONG DTWAIN_GetDuplexTypeEx ( DTWAIN_SOURCE Source );

Parameters

Source

Specifies an open TWAIN Source.

Return Values

If duplex mode is supported for the Source, the duplex type is returned. On failure, -1 is returned. Call DTWAIN_GetLastError() to retrieve the reason for the failure.

Comments

The DTWAIN_GetDuplexTypeEx performs the same functions as DTWAIN_GetDuplexType, with the only difference being that the duplex type is returned as a LONG instead of the client having to provide a pointer to a LONG.

TWAIN State Transitions

The source must be opened in State 4

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function