References ▼
#include "ltwrappr.h"
L_INT LTwain::EnableDuplex (bEnableDuplex)
Enables or disables the duplex mode.
Flag that indicates whether to enable or disable the duplex mode. Possible values are:
| Value | Meaning |
|---|---|
| TRUE | Enables the duplex mode. |
| FALSE | Disables the duplex mode. |
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
This function internally sets the duplex enabled capability CAP_DUPLEXENABLED. For more information on these capabilities, refer to the TWAIN specification.
To get the current values of this capability, call the LTwain::GetDuplexOptions function.
Required DLLs and Libraries
L_INT LTwain__EnableDuplexExample(LTwain * plTwain){L_INT nRet;L_BOOL bEnableDuplex;L_INT nDuplexMode;L_INT nMaxXfer;nRet = plTwain->GetDuplexOptions(&bEnableDuplex, &nDuplexMode);if(nRet != SUCCESS)return nRet;if (bEnableDuplex != TRUE){nRet = plTwain->EnableDuplex(TRUE);if(nRet != SUCCESS)return nRet;}nRet = plTwain->GetMaxXferCount (&nMaxXfer);if(nRet != SUCCESS)return nRet;if (nMaxXfer != 10){nRet = plTwain->SetMaxXferCount (10);if(nRet != SUCCESS)return nRet;}return SUCCESS;}