Handling unmanaged exceptions in managed code

[sree83]

Hi All,

I am having an executable developed in C#.Net. My app make use of services from some unmanaged dlls it loads. My problem is that my application is termainted due to some exceptions within these unmanaged codes. I tried AppDomain UnhandledExceptionEventHandler and ThreadExceptionEventHandler....but it fails to catch the excpetions...

Can anyone tell me how to handle the unmanaged exceptions in manged code in.
Thanks in advance...

[PRR]

Have a

Catch
{
// catch unmanaged exceptions here
}
 

for unmanaged exceptions... Catch{} catches all exceptions .. both unmanaged and managed

[sree83]

.Thanks for the reply...
But still i am not sure whether the exception is raised when any method is invoked from the managed code...

There are 2 unmanaged modules in use..one for logging purpose and the other for enabling a communication with another server....Both of them manage a lot of threads within them...

so where to put the try-catch statement to catch exceptions which may be raised from some other threads within the unamanged app..??

[PRR]

You can put the catch{} block in your C# code... Do you have exception handling built within those modules? Things should be cleaner if your module either calls functions or fails with app reason...

[PRR]

Check these links Consuming Unmanaged DLL Functions and Map HRESULTs and Exceptions