Compile error after adding PDDocGetXAPMetadata

[Andreas_Schauerte@adobeforums.com]

Hi all,

I build a plug-in for the Windows version of Acrobat Professional 7.0 using Visual Studio .NET 2003 and the Acrobat Plug-In Wizard (Acro7PIWiz) from Acrobat SDK 7.0.5.

Everything works fine, but when I want to access XMP-Data by including a call to PDDocGetXAPMetadata I get the following compile time errors:
plugininit.obj : error LNK2001: unresolved external symbol _gPDMetadataHFT
plugininit.obj : error LNK2001: unresolved external symbol _gPDMetadataVersion

As you can see, I put the statement in the plugininit.cpp file (menu button event).
The pimain.c file contains following definition:
#if PI_PDMETADATA_VERSION != 0
HFT gPDMetadataHFT = 0;
ASUns32 gPDMetadataVersion = 0;
#endif

What am I missing here? Any hints would be appreciated.
Source code will be handed out, if anybody find this usefull

Thanks a lot in advance
Andreas

[Bernd Alheit]

Is PI_PDMETADATA_VERSION defined?

[Andreas_Schauerte@adobeforums.com]

Hi,

PI_PDMETADATA_VERSION is defined in pirequir.h as PDMetadataHFT_VERSION_6.
After adding the following to plugininit.cpp, compiling succeeds:
extern "C" HFT gPDMetadataHFT;
extern "C" ASUns32 gPDMetadataVersion;

But a call to PDDocGetXAPMetadata never returns.
gPDMetadataHFT has value of 0
gPDMetadataVersion has value of 458752 (0x00070000 witch is defined by PDMetadataHFT_VERSION_7)
Are there any other dependencies? Snippet DocMetadataSnip can access Metadata (using the same method) without any problems.

Thanks
Andreas

[Aandi_Inston@adobeforums.com]

Check the working sample for code that initialises gPDMetadataHFT.

Aandi Inston

[Bernd Alheit]

PI_PDMETADATA_VERSION is defined in pirequir.h as PDMetadataHFT_VERSION_6.




Only when PDMETADATA_HFT is defined and READER_PLUGIN isn't defined.

[Andreas_Schauerte@adobeforums.com]

My prior post was wrong, sorry for that - adding the extern declaration doesn't work, I'd added some duplicated code... and then the values were of course wrong.

Bernd: you are right.
piheaders.h: #define PDMETADATA_HFT 1
READER_PLUGIN is not defined.

How do I correctly resolve the "unresolved external symbol _gPDMetadataHFT / _gPDMetadataVersion" problem?

Thanks for your patience.
Andreas

[Bernd Alheit]

Are the symbols in your pimain.obj?

[Andreas_Schauerte@adobeforums.com]

Good guess.

Symbols are not included in pimain.obj, because PDMETADATA_HFT is not defined. As mentioned, it is defined in PIHeaders.h, but this is not used, when compiling pimain.c - don't know why.

Got my code to work by adding #define PDMETADATA_HFT 1 to pimain.c manually. I'm not sure, if this is the "preferred" way of working around this problem. After trying to compare my project with the working SnippetRunner I don't know what else to do.

Any suggestions?

Andreas

[Bernd Alheit]

Do you use PIMain.c in Headers\API of the Acrobat SDK?

[Andreas_Schauerte@adobeforums.com]

No, the PlugIn-Wizard has generated a pimain.c file in the project directory - I've tried the Headers\API-Version without success and switched back to the original (lightly different) copy in my project directory.