[Help] Program hangs during a process in extension

[sss]

I have written an mfx extension for my program which has an action LoadCurrentSession. LoadCurrentSession calls a function called ExtractFiles() that basically extracts files onto system, which takes about 40 to 60 seconds.

The problem is that as soon as I call the action LoadCurrentSession, my application hangs for about 40 to 60 seconds until the operations by LoadSession() are done.
Is there any way I could prevent the application from getting hanged? I instead want some kind of visual communication like a progress bar to be used, but since the application gets hanged, the user will be unable to see the progress bar.

Here's what LoadCurrentSession does:

short WINAPI DLLExport Act_LoadCurrentSession(LPRData rdPtr,long Param1,long Param2)
{
ExtractFiles();
return 0;
}


Thanks in advance.

[Dynasoft]

You need to learn how to use threads. You can use a thread to run the "extract files" function and at the same time have your Act_LoadCurrentSession() function continue running (and return, and have mmf continue running).

Reporting back a progress is a bit more difficult, and involves thread synchronisation.

Google for more.

[James]

short WINAPI DLLExport Act_LoadCurrentSession(LPRData rdPtr,long Param1,long Param2)
{
CreateThread(NULL,NULL,(LPTHREAD_START_ROUTINE)Ext ractFiles,NULL,NULL,NULL);
return 0;
}

[James]

Too late to edit, but I didn't read your post properly- if you want to communicate with your thread, the easiest way is to give it access to rdPtr-

short WINAPI DLLExport Act_LoadCurrentSession(LPRData rdPtr,long Param1,long Param2)
{
CreateThread(NULL,NULL,(LPTHREAD_START_ROUTINE)Ext ractFiles,(LPVOID)rdPtr,NULL,NULL);
return 0;
}

and then ExtractFiles should be

void ExtractFiles(LPRDATA rdPtr) {
}