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Topic: Help on resolving HFT references using PDFEdit
Conf: (P-PDF) Developers, Msg: 53608
From: ptribulski
Date: 5/29/2002 05:00 PM

FYI - I caused a problem in my code and resolved it.
I thought I should share in case someone else runs into the same problem.

In trying to incorporate some of the PDFEdit example code into my plug-in. I noticed that to access some of the functions, I included the following in my C code:
#define PI_PAGE_PDE_CONTENT_VERSION 0x00040000
#define PI_PDFEDIT_WRITE_VERSION 0x00040000
#define PI_PDFEDIT_READ_VERSION 0x00040000

Doing so, forces several global extern HFT variables to get defined, which the linker flagged as unresolved:

chbPDFEdit.obj : error LNK2001: unresolved external symbol _gPDFEditReadHFT
chbPDFEdit.obj : error LNK2001: unresolved external symbol _gPDFEditWriteHFT
chbPDFEdit.obj : error LNK2001: unresolved external symbol _gPagePDEContentHFT

The supplied PIMAIN.C contains #ifdef statements to define these globals. To resolve the issue:

Do NOT include the #defines as listed above in your C module, but instead set them in the Preprocessor Definitions
(Project-Settings-C/C++ tab-General for MS VC++ 6 users) as :
PI_PAGE_PDE_CONTENT_VERSION=0x00040000,PI_PDFEDIT_WRITE_VERSION=0x00040000,PI_PDFEDIT_READ_VERSION=0x00040000
This will cause the definitions to get recognized when both your module and PIMAIN.C are compiled.

Hope this helps someone.

Pete


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