Adding a new version of a dll-file (ActiveX-Component) to VFP for creating 2D-barcodes fails

[ManniB]

Hi,

for creating 2D-Barcodes in VFP like QR-Code and Datamatrix I have implenented a dll-file (an ATL ActiveX component) called XBarCodePro.dll into VFP (their webseite:

https://www.dsxtech.com/xbarcodepage.htm).

I implemented it by first registering the file with a batch-command using regsvr32. Then I added it to VFP via Options -> Controls -> ActiveX Controls and added the xbarcodepro.dll file to the list and checkmarked it. Afterwards I could add barcode-objects to my forms. It worked well, but now I have to use an updated version of the dll-file, because there were some issues with the datamatrix-Barcode. So I received a new xbarcodepro.dll file. It also comes with a new .lib-file for the license.

After unregistering the old dll-file via a "regsvr32 /u" command and registering the new one with regsvr32 command, I tried to add the new file to vfp again via options -> controls. But when choosing the new dll-file, there appears an error message that the "file does not exist"!? Even though I used the add-button, chose libraries as file type and could select the dll-file.

Any ideas on how I can make the new version of the xbarcodepro.dll file work in VFP?

Manni

 

[Chris Miller]

The only reason making sense for the "file does not exist" message is, if the DLL is in a path containing a space. Then the part o the file name up to the first space is taken as the file name and, well, likely that does not exist.

Chriss

 

[ManniB]

Hi Chris,

thank you for your answer. I found out that the new version of the ActiveX DLL file is a 64-bit. The old one, which was working, was a 32-Bit DLL. I contacted the vendor to send me a 32-Bit dll and hope it will then be working, again.

To my understanding, it is never possible to incorporate a 64-bit COM Server DLL file into VFP, right?

 

[Chris Miller]

You could only use a 64bit COM-Server that's within an EXE and is used out-of-process, but not a DLL, that's right.

Chriss

 

[ManniB]

Ok thanks, then that was the reason for the weird message "file does not exist".

Manni