L_TwainGetResolution

Summary

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

Syntax

#include "lttwn.h"

L_LTTWN_API L_INT L_TwainGetResolution(hSession, pXRes, pYRes)

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

See Also

Functions

Topics

Example

For an example, refer to L_TwainSetResolution.

Help Version 22.0.2022.12.7
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Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.