New article for VB.Net

[Merrion]

Monitoring a print queue from VB.Net

Any comments/suggestions for improvement?
Thanks in advance
Duncan

 

[Derek Stone]

Glad to see you got this working in .NET. Its a good example of passing structure pointers to the Win32 API from a managed environment.

Just a quick comment though. You call Marshal.FreeHGlobal() in the class Finalize method, so keep in mind how long it may take for the Garbage Collector to actually free that unmanaged memory. The only way to ensure that the memory is freed in a timely manner is to call FreeHGlobal directly after AllocHGlobal or at least make sure to call the class Dispose method after youre finished using it.

 

[Merrion]

Good point. Im still trying to get out of the VB6 mentatilty on this.