Application Loading incorrect bpl

[magicman 0]

Hi everyone,

 

I have a deplhi project with bpls stored in its own application folder that will get loaded up when my application starts. However, i noticed that if i build a bpl and drop it in my desktop, my application will use the bpl located in my desktop instead of the one in my applications folder (where my other bpls live). I tried looking for a solution but cant seem to find anyone who had a similar issue. Any suggestions?

[Remy Lebeau 1421]

Are you linking statically to the BPL at compile-time, or are you loading the BPL dynamically at runtime?

Edited Monday at 07:18 PM by Remy Lebeau

[magicman 0]

19 hours ago, Remy Lebeau said:

Are you linking statically to the BPL at compile-time, or are you loading the BPL dynamically at runtime?

Well this is my company software, and the delphi application is installed on our virtual machines. When the application is installed, the bpls get installed to a folder (ex: C:/Program Files (x86)/Application/{Bpls}). I build one of the bpls on my own machine with embarcadero delphi 12. and dropped it on my VMs Desktop. When i launch the application it uses the bpl on my desktop (which should not happen, but it is). And to answer your question, i think the application is linking statically to the Bpl, because if i delete the bpl from my desktop and the application folder, it causes an error. 

Edited 22 hours ago by magicman

[Uwe Raabe 2063]

38 minutes ago, magicman said:

the bpls get installed to a folder (ex: C:/Program Files (x86)/Application/{Bpls}).

Is this folder is added to the PATH variable or how do you make Windows find those libraries?

 

Also, which folder is given as the starting folder when you launch the application?

[Remy Lebeau 1421]

26 minutes ago, magicman said:

And to answer your question, i think the application is linking statically to the Bpl, because if i delete the bpl from my desktop and the application folder, it causes an error. 

Actually, that doesn't answer my question at all, so let me rephrase it...

 

When the application begins, is the BPL being loaded automatically by Windows (are you seeing a standard system error message?), or is the BPL being loaded by the application's code using Delphi's LoadPackage() function and then displaying its own error message? Can you provide a screenshot of the error message? 

 

Did you check Windows' PATH environment to see if the Desktop folder is present in it and is before the BPL folder?

 

The best way to ensure that the BPLs are being loaded only from the app's BPL subfolder is to load them manually in code using LoadPackage() specifying the absolute path to each BPL. If that is not an option, then the next best option is to make sure the BPLs are marked for delay-loading in the app's config and then call SetDllDirectory() or AddDllDirectory() at app startup to add the BPL subfolder to the DLL search path before the standard system search path.