ftexttopath example needed

[MarksAlias]

I'm trying to run a labview dll from CVI.  I think I've got it all working expect that I have to pass in a Path variable.

Following the advice found in http://forums.ni.com/t5/LabWindows-CVI/Path-data-type-convert-in-CVI/m-p/699765/highlight/true#M3544...

I think I'm setting this up correctly, but the call to FTextToPath is still returning a 1 ("An input parameter is invalid.")

sample Code:

int CVICALLBACK Go (int panel, int control, int event,
      void *callbackData, int eventData1, int eventData2)
{
     
   MgErr err=-1;
   
   Path pathy;
   
   
   char wavePath[500]={"C:\\chewie_talking-ringtone.wav"};

   switch (event)
   {
      case EVENT_COMMIT:

         err = FTextToPath(wavePath, strlen(wavePath), &pathy);
	                 
         // Call to labview DLL here

         
         break;
   }
   return 0;
}

 I'm assuming it's something obvious I'm missing, but damned if I can see it.

Any input is appreciated!

[Daniel-E]

Hey MarksAlias,

On the line where you declare wavePath, it shouldn't be necessary to include the curly braces { } around the path. That's the only difference that I can see between your code and the one you linked.

Also, I noticed that an easier solution presented in that forum was to change the LabVIEW DLL to accept a string instead of a path. Is this possible for your application? If so, it might be a bit easier than doing it with these LabVIEW memory manager functions.

[MarksAlias]

Thanks Daniel.

For now I've resolved that specific issue.  The code actually works but the labview rte wasn't being initialize properly because the system was out of memory.  A call to LVDLLStatus confirmed this.  Not sure why the FTextToPath err returned was 'invalid parameter' but I guess that's just part of the rte not being loaded.

Thanks!

Mark