L_TwainGetResolution

#include "lttwn.h"

L_LTTWN_API L_INT L_TwainGetResolution(hSession, pXRes, pYRes)

Gets the current horizontal and vertical resolution used to transfer images from the current TWAIN source.

Parameters

HTWAINSESSION hSession

Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function.

pTW_FIX32 pXRes

Pointer to a variable to be updated with the current horizontal resolution value.

pTW_FIX32 pYRes

Pointer to a variable to be updated with the current vertical resolution value.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

This function gets the horizontal and vertical resolution capability values ICAP_XRESOLUTION and ICAP_YRESOLUTION. For more information on these capabilities, refer to the TWAIN specification.

To set the resolution values, call the L_TwainSetResolution function.

This function should be called after calling the L_TwainStartCapsNeg function and before calling the L_TwainEndCapsNeg function.

Required DLLs and Libraries

Help Version 21.0.2021.4.7
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