DTWAIN_GetCapOperationsEx

The DTWAIN_GetCapOperationsEx function gets the operations (GET, GETDEFAULT, SET, etc.) that are supported by a capability.

LONG DTWAIN_GetCapOperationsEx (

DTWAIN_SOURCE	Source,
LONG	Capability );

Parameters

Source

An open TWAIN Source.

Capability

The capability that is to be queried for the operations.

Return Values

If successful, the operations supported by the capability. On failure, 0 is returned. Call DTWAIN_GetLastError() to get extended information.

Comments

The DTWAIN_GetCapOperationsEx performs the same functions as DTWAIN_GetCapOperations, with the only difference being that the operations are returned as a LONG instead of the client having to provide a pointer to a LONG.

TWAIN State Transitions

The Source must be in State 4 or higher (depending on the capability).

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function