ImageGear for C and C++ on Windows v19.10 - Updated
IG_REC_util_codepage_to_unicode
API Reference Guide > Recognition Component API Reference > Recognition Component Functions Reference > Utility Functions > IG_REC_util_codepage_to_unicode

Converts a character code from the current Code Page value to its UNICODE representation.

Declaration:

 
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AT_ERRCOUNT ACCUAPI IG_REC_util_codepage_to_unicode(
   LPAT_BYTE pCodepageBuffer,
   AT_INT codepageBufferLength,
   AT_WCHAR* pUnicode,
   LPAT_INT pActualLen
);

Arguments:

Name Type Description
pCodepageBuffer LPAT_BYTE Pointer to character code to be converted.
codepageBufferLength AT_INT The size of the buffer from which the character code is to be read.
pUnicode AT_WCHAR* Pointer to a UNICODE buffer for the converted character code.
pActualLen LPAT_INT Pointer to a variable to hold the actual number of bytes read for the character code.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

This function does not process image pixels.

Example:

 
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AT_ERRCOUNT ErrCount = 0;
HIGEAR higImage = 0;
HIG_REC_IMAGE higRecImage = 0;
LPAT_BYTE lpBuffer = 0;
AT_INT iBufLen = 0;
AT_WCHAR wcUnicode = 0;
AT_INT iActualLen = 0;

ErrCount += IG_load_file("Image.tif", &higImage);
ErrCount += IG_REC_image_import(higImage, &higRecImage);
ErrCount += IG_REC_image_recognize(higRecImage);

ErrCount += IG_REC_output_codepage_set("Windows ANSI");

lpBuffer = (LPAT_BYTE) malloc(1 * sizeof(AT_BYTE));
iBufLen = 1 * sizeof(AT_BYTE);
lpBuffer[0] = '�';
ErrCount += IG_REC_util_codepage_to_unicode(lpBuffer, iBufLen, &wcUnicode, &iActualLen);
//...

free(lpBuffer);
ErrCount += IG_REC_image_delete(higRecImage);
ErrCount += IG_image_delete(higImage);

Remarks:

  1. This function can be useful whenever a character or a character string from output should be passed to an API function requiring the character's or strings's UNICODE representation (e.g., IG_REC_output_rejection_symbol_set).
  2. The current Code Page may have been set or changed by a previous IG_REC_output_codepage_set function call.