This is in XP/ME. I'm registering my program so that it appears in Control
Panel > Scanners and Cameras , for the Device Online event. I execute:
and it works great. Now, later on I want to be able to un-register it, I
with the exact same values for app/app_name/app_desc/icon, and it gives me
the error : "parameter incorrect".
Not very descriptive. All the parameters are allocated and hold the values I
expect them to...
Any ideas? I know I can use other RegisterEventCallback functions to recieve
messages directly in my app, but I need to register the application this
Thanks in advance.