[Windows] Processing system messages

[Korolev Michael]

My app works without GUI.
But sometimes I need to process some system events, for example, WM_QUERYENDSESSION:

Code: Select all

Procedure WinCallback(hWnd, uMsg, wParam, lParam)
  If uMsg = #WM_QUERYENDSESSION
    ...Some code...
  EndIf
  ProcedureReturn #PB_ProcessPureBasicEvents
EndProcedure

But for processing system events, I need to create invisible window and process them in window main loop WaitWindowEvent()
Can I make processing of events without invisible window?

[RSBasic]

You need a window. It is not possible without window.

[Korolev Michael]

Thanks a lot.

[Dude]

Can I make processing of events without invisible window?

Yep, just make the window visible. (Sorry, couldn't resist).

[Korolev Michael]

[netmaestro]

What you want is a message-only window. You can create one easily by creating a PureBasic window and applying SetParent_() to it specifying #HWND_MESSAGE for the parent window handle or with CreateWindowEx if you prefer.

Have a look here: https://msdn.microsoft.com/en-us/librar ... ssage_only

[Korolev Michael]

netmaestro, from your link:

[...]and does not receive broadcast messages.[...]

I'm not sure if it fit for me.