C# Thread and what does it mean to set ApartmentState.STA or ApartmentState.MTA

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C# Thread and what does it mean to set ApartmentState.STA or ApartmentState.MTA

T.Zacks 3,996

I do not know what happen when we set STA & MTA for thread. please tell me if i set mythread.SetApartmentState(ApartmentState.STA); then what will happen ?

and same way if i set mythread.SetApartmentState(ApartmentState.MTA); then what will happen ?

1) what is difference between ApartmentState.STA & ApartmentState.MTA ?
2) thread state default is MTA but if i set STA then what will change in execution flow of thread?

looking for a good guide line. thanks
Thanks

RLWA32 49,636 Reputation points

2022-02-21T20:44:36.15+00:00

Here's a pretty concise explanation of COM apartments (threading models). A slightly less brief introduction to COM apartments (but it’s still brief). And from the Microsoft documentation -- https://learn.microsoft.com/en-us/windows/win32/com/processes--threads--and-apartments

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RLWA32 49,636 Reputation points

2022-02-21T20:44:36.15+00:00

Here's a pretty concise explanation of COM apartments (threading models). A slightly less brief introduction to COM apartments (but it’s still brief). And from the Microsoft documentation -- https://learn.microsoft.com/en-us/windows/win32/com/processes--threads--and-apartments

Answer 1

Castorix31 90,686

You can find some explanations in this extract of a book : ApartmentState

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C# Thread and what does it mean to set ApartmentState.STA or ApartmentState.MTA

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