References ▼
#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. | |
SUCCESS |
The function was successful. |
! = SUCCESS |
An error occurred. Refer to Return Codes. |
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. |
Functions: |
L_TwainStartCapsNeg, L_TwainEndCapsNeg, L_TwainSetProperties, L_TwainGetProperties, L_TwainGetCapability, L_TwainInitSession, L_TwainEndSession. |
Topics: |
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For an example, refer to L_TwainAcquire.