RedGate.MemoryProfiler.Snapshot.TakeSnapshot() returns false

[abhijeet2083]

I am trying to get a snap shot from a very simple winform app when the profiler is running.
But RedGate.MemoryProfiler.Snapshot.TakeSnapshot("asd") always return false without any delay.

Any help appreciated.
Abhijeet

[Brian Donahue]

AFAIK this method should throw an exception if there is a problem and the return codes for this method are undocumented but just to clear up any potential misunderstanding:

• Is ANTS Memory Profiler running at the same time as the application for which you've incorporated the snapshot API?
  
• If so, does ANTS Memory Profiler inform you that it is taking the snapshot "asd" in its' UI?
  
• If so, are any exceptions occurring in the Memory Profiler UI at the time the snapshot was invoked?
  

_________________
Brian Donahue
Technical Support
Red Gate Software Ltd.
44 (0)870 160 0037 ext 8521
US and CAN 1-866-RED GATE ext 8521

[abhijeet2083]

Thanks for the reply.
Firstly answering your questions,
- Yes, the profiler & the app invoking API are running at the same time.
- After the API invoke, there is absolutely no change on the profiler UI.

Here is something I should have mentioned in my first post.

- I got a COM unregistered exception when I tried for the first time.
- That was when I registered the assembly RedGate.Memory.Core.dll from its location inside Program Files.
- And its after this register is the behavior mentioned in the first post.

[Brian Donahue]

Well, according to the source code, TakeSnapshot returns false if

• Profiler is not connected to the process
  
• The memory profiler control can't be referenced (problem with RedGate.Memory.Core.dll)
  
• Profiler busy detaching with the process (or a COM exception occurs)
  

So I guess I would check the first thing by trying to take a snapshot in the UI. Mem profiler has probably crashed the process or it's exited on its' own. According to your last update you registered RedGate.Memory.Core.dll.
_________________
Brian Donahue
Technical Support
Red Gate Software Ltd.
44 (0)870 160 0037 ext 8521
US and CAN 1-866-RED GATE ext 8521

[jrg]

Just a thought - the snapshot API requires the profiled process to be started by the profiler - it's not enough for them to run at the same time.

Start ANTS Memory Profiler.
Set up ANTS Memory Profiler to profile your application in the normal way.
When you click [startprofilingbutton] your application starts.
Snapshots are taken automatically at the trigger points you defined in your code.