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 How to use my external DLL in X-Function?		  New Topic  Reply to Topic
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Alex-qwerty

Russia
Posts
Posted - 12/05/2010 :  03:39:57 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
OriginPro 8.1 SR3 Operating System: WinXP SP3
I have my own DLL that I can use in OriginC, and I can use it in OriginC.
Files "MyDLL.dll" and "MyDLL.h" are located in the same folder as my Origin project that uses this DLL. But functions from my DLL are accessible just from this project.
Now I want to use this DLL in my user X-Function, for accessing my DLL functions fron any project.
Is it possible?
I tried to compile my X-Function, but have compiler message:
"Error, include file not found"
I try to put include file "MyDLL.h" as in folders with my X-Function:
"...\Documents and Settings\...\OriginLab\81\User Files\X-Functions\Miscellaneous\"
as in folders:
"C:\Program Files\OriginLab\Origin81\OriginC\OriginLab\"
"C:\Program Files\OriginLab\Origin81\OriginC\System\"
but always get message "Error, include file not found".
Is there a way to use my DLL in user X-Function?

Alex-qwerty

Russia
Posts
Posted - 12/06/2010 :  01:09:37 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
One of cases abowe start working after Origin restart:
I put file "MyDLL.h" in
C:\Program Files\OriginLab\Origin81\OriginC\Systemand "MyDLL.dll" in
C:\Program Files\OriginLab\Origin81and type in my X-Function #include <MyDLL.h>
and restart Origin.
After that my X-Function begin to compile and work normally.
But all these folders are Origin system folders.
So, the qwestion now is: Is there a way to use a Origin user folders for storing "MyDLL.h" and "MyDLL.dll"?
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Penn

China
644 Posts
Posted - 12/06/2010 :  02:23:12 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

Please refer to our Origin C document about how to Include Header Files and Access an External DLL.

In your issue, you can try to put both your "MyDLL.h" and "MyDLL.dll" in the folder "OriginC\X-Functions", which is under the User Files Folder. In the "MyDLL.h" header file, need the following line to specify the location of the dll.

#pragma dll(MyDLL, header) //in the same folder as this .h file

Then in the X-Function, include the header file like:

#include "MyDLL.h"


Penn
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Alex-qwerty

Russia
Posts
Posted - 12/06/2010 :  10:42:51 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Many thanks for Penn!
It works!
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