L_TwainSetCapability

#include "lttwn.h"

L_LTTWN_API L_INT L_TwainSetCapability (hSession, pCapability, uFlags)

HTWAINSESSION hSession;

handle to an existing TWAIN session

pTW_CAPABILITY pCapability;

pointer to a structure

L_UINT uFlags;

optional flags

Sets the value of the specified capability.

Parameter Description
hSession Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function.
pCapability Pointer to the TW_CAPABILITY structure that references the capability value to set. This structure must be allocated and filled with data corresponding to the required capability before passing it to the function.
uFlags Flags that indicate whether to set or reset the capability value. Possible values are:
  Value Meaning
  LTWAIN_CAPABILITY_SET [1] Set the capability to the value specified in pCapability.
  LTWAIN_CAPABILITY_RESET [2] Reset the value of the capability to the default value defined by the TWAIN source. In this case the pCapability can be NULL since it is not needed.

Returns

SUCCESS

The function was successful.

! = SUCCESS

An error occurred. Refer to Return Codes.

Comments

To enable duplex scanning, set the CAP_DUPLEXENABLED option in the TW_CAPABILITY structure passed to this function.

This function must be called after L_TwainStartCapsNeg is called and before L_TwainEndCapsNeg is called.

Required DLLs and Libraries

LTTWN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files to be Included with your Application.

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