ImageGear Professional DLL for Windows
IG_fltr_pageswap_file_W
ImageGear Professional v18.2 > API Reference Guide > Core Component API Reference > Core Component Functions Reference > Filter Functions > IG_fltr_pageswap_file_W

This function swaps two pages in a multi-page file.

Declaration:

 
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AT_ERRCOUNT ACCUAPI IG_fltr_pageswap_file_W(
   const LPAT_WCHAR lpwszFileName,
   AT_MODE nFormatType,
   UINT nPage1,
   UINT nPage2
);

Arguments:

Name Type Description
lpwszFileName const LPAT_WCHAR Path and name of the file in which to swap the pages, specified as a wide string (UTF-16). The path can be absolute or relative.
nFormatType AT_MODE A constant indicating the file format of the input file. See enumIGFormats for possible values. Set to IG_FORMAT_UNKNOWN to let ImageGear detect the file format.
nPage1 UINT Number of page 1 to swap with page 2.
nPage2 UINT Number of page 2 to swap with page 1.

Return Value:

Returns 0 if successful. Otherwise, returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All pixel formats supported by ImageGear Professional.

Sample:

None

Example:

 
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AT_ERRCOUNT     nErrcount;            // Count of returned errors on stack
nErrcount = IG_fltr_pageswap_file_W(L"picture_multipage.tif", IG_FORMAT_TIF, 1, 2);

Remarks:

Use IG_fltr_info_get function to determine whether the format filter supports page swapping. If the flags returned by this function contain IG_FLTR_PAGESWAPSUPPORT, then the format filter supports the swapping procedure.

See also the section Getting Information and Sorting Images.

This function may work slower on PDF and PostScript images, compared to its ANSI analog IG_fltr_pageswap_file.

 

 

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