Long duration function

steve64

I have a "long duration" function (let say 10-15 seconds) using a custom DLL for fetching data from a device as well as for saving such data to a file. At some point of time the GUI that called the function becomes irresponsive (with "grayed" look) until the entire function returns.
I can accept to wait for termination but I would like to possibly avoid the "grayed" look and ideally show some "progress" info in the GUI.
I cannot easily split the task in stages since it's mostly in C code (DLL).
Is it possible?

Samir

As the DLL blocks the current process execution the ui cannot be updated and will freeze until the DLL has finished its work (it's not a good implementation, the DLL should do its work in a separated thread and bring back execution to the current process)

steve64

thanks, I will try to add a thread in the DLL...