How to avoid error message

[julius228]

Hi all,

I have problem whit this code:

device.mydevice.Port=1
try
   device.mydevice.InitComm()
   delay(3)
catch()	  
	  ? "Com busy"
Endcatch

When I execute previous code, I get the follow error message:

Unable to initialize Com1: Can't access port, probably in use by another app

How can I print the string "Com busy" instead of DF error message?

Any help is appreciated.

Thanks, Giulio.

[AzeoTech]

Initializing the comm port is an asynchronous process, so any failure goes directly to the Command/Alert window. The only way to catch init errors is to use the OnAlert system event (see 5.28 in the user's guide)