What is the difference between WM_CLOSE, WM_DESTROY, and WM_QUIT?

Question

thebluetropics 1,046

There are three messages that probably sent when the window closes, WM_QUIT, WM_DESTROY, WM_CLOSE.

Is there any difference between these?
And what order they are sent? E.g WM_CLOSE sent first, or WM_DESTROY sent first.

Sam of Simple Samples 5,546 Reputation points

2022-09-18T17:00:12.687+00:00

If it were me and I wanted to determine what order they are sent I would either put breakpoints on the message handlers and debug or I would write a message to the debug log in each message handler and debug. If you simply generate a C++ Windows SDK application then you will have a sample you can use.
thebluetropics 1,046 Reputation points

2022-09-19T09:12:09.56+00:00

Yea, I just realized I can do that way, thank you so much for telling me. However, I am a very beginner to debugging and c++, even if I use Visual Studio debugger, everyday until you tell me, I still didn't realize if I can use debugger for such usage.

Accepted answer

0 additional answers

Sam of Simple Samples 5,546 Reputation points

2022-09-18T17:00:12.687+00:00

If it were me and I wanted to determine what order they are sent I would either put breakpoints on the message handlers and debug or I would write a message to the debug log in each message handler and debug. If you simply generate a C++ Windows SDK application then you will have a sample you can use.
thebluetropics 1,046 Reputation points

2022-09-19T09:12:09.56+00:00

Yea, I just realized I can do that way, thank you so much for telling me. However, I am a very beginner to debugging and c++, even if I use Visual Studio debugger, everyday until you tell me, I still didn't realize if I can use debugger for such usage.

Answer 1

Castorix31 90,521

You can see explanations at : Closing the Window