DTWAIN_GetLastError

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The DTWAIN_GetLastError function returns the last error that occurred when a DTWAIN function was called.

LONG DTWAIN_GetLastError( );

Parameters

None.

Return Values

Returns a non-zero value denoting the error code.

Comments

The DTWAIN_GetLastError returns the last error that occurred when a DTWAIN function was called. Usually if a FALSE or error condition is returned, your application can check the error code.

DTWAIN does not reset the error code, so the best place to call DTWAIN_GetLastError is immediately after a function fails.

To get a meaningful error message associated with the error number, call DTWAIN_GetErrorString.

TWAIN State Transitions

None

Prerequisite Calls

None.