Microsoft Dynamics AX (Archived)

Get object from handle

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Posted on by Community Member

Hello,

I have windows handle of object (windows handle)

How can I find the instance of object? (class)

Thanks :)

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Jonathan Halland 11,310 on at

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Hi Eitan, can you post a sample of the code you currently have E.G. the handle. What type are you using to store this handle?

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DG 1,226 on at

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I guess you are talking about an AX class. If yes, then use function 'classIdGet' to get the ID of the class involved.

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Community Member on at

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Hi,

Windows handle will only give you "low level" class (something like Windows Forms AxToLevelFrame or AxPaneWnd) but you can't get X++ object out of it. Handle is intended to be used when calling WinApi methods.

If you want to find a window by its handle - you should first build your own list of all opened windows - something like SysTaskRecorderRunningFormsManager::formlist()

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Community Member on at

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I know exactly the class name.

I am passing the hwnd() (of form object), need to retrieve the form itself, by only have the hwnd().

I see function SysTaskRecorderRunningFormsManager::addFormToList().

I succeed passing the formrun (this), and retrieving it elsewhere, but when I retrieving it from thread function

(like TutorialThread::runThread), SysTaskRecorderRunningFormsManager::getFormRunByHwnd(hwnd) returns null (that doesn't happen for non-thread methods).

Thanks :)

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Community Member on at

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Hi,

Sorry, I didn't get from your first message that you are talking about the multi-threaded case.

I would recommend first reading this discussion: How to load data in form asynchronous? It has a really good example from Brandon.

The basic idea is that by calling Thread.run() you create a new AX session of Worker type. And since you can't access the UI object running in another AX session (its by the AX architecture) - my previous recommendation doesn't work for you.

But if you combine SysTaskRecorderRunningFormsManager (or any other Global Cache based list) and the Thread.executeInUIThread() then you should be able to meet your goal

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Community Member on at

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OK.

Thank you!!!

Now understanding working with thread in AX - I solve the problem, using wisely executeInUIThread.

Thanks :)

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Community Member on at

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Community Member on at

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Hi,

Try: Thread.cancelJob(true)

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