XMP Error

Question

At one point I was able to edit the xmp info just fine. Now, I always get the same error. Even when trying to edit the xmp of a file I've changed once before. "The file cannot be opened with the XMP Info dialog. The file might not be supported or its metadata might be corrupted."
Does anyone know how to fix this?

Answer 1

Hi,
Input to OpenFile() function needs to be a UTF8 string. "flówér.jpg" is in WinANSI, and needs to be converted to UTF8 string so that OpenFile can correctly find the file.
For example, on Windows OS, you need to define a function as:
void WinEncodingToUTF8 ( UINT codePage, const XMP_Uns8 * hostPtr, size_t hostLen, std::string * utf8 )
int utf16Len = MultiByteToWideChar ( codePage, 0, (LPCSTR)hostPtr, (int)hostLen, 0, 0 );
std::vector<UTF16Unit> utf16 ( utf16Len, 0 );   // MultiByteToWideChar returns native UTF-16.
(void) MultiByteToWideChar ( codePage, 0, (LPCSTR)hostPtr, (int)hostLen, (LPWSTR)&utf16[0], utf16Len );
FromUTF16Native ( &utf16[0], (int)utf16Len, utf8 );
This function requires a function which is present in the file "UnicodeConversions.cpp". So you need to include a file "source/UnicodeConversions.hpp" in your project.
The sample usage could be:
std::string outputPath;
WinEncodingToUTF8( 1252, (const XMP_Uns8 *)inputFile.c_str(), inputFile.size(), &outputPath );