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 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.
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. |
See Also
Functions: |
L_TwainStartCapsNeg, L_TwainEndCapsNeg, L_TwainSetProperties, L_TwainGetProperties, L_TwainGetCapability, L_TwainInitSession, L_TwainEndSession. |
Topics: |
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Example
For an example, refer to L_TwainAcquire.