OnMessage - Receive WM_LBUTTONDOWN event?

[Guest078]

Hi,

I use:

Code: Select all

OnMessage(C["MSG"]["WM_LBUTTONDOWN"], "WM_MOUSECLICKS")

in the autoexecute part of my script (the associative array contains the hex value for WM_LBUTTONDOWN) and the WM_MOUSECLICKS function outputs wParam, lParam, msg and the hwnd.

It works fine if I click anywhere inside any of my own gui window(s) but I'd like to capture this left mouse down event if the mouse is used in a different application (e.g. Windows File Explorer).

Is that possible with AHK?

[guest3456]

It works fine if I click anywhere inside any of my own gui window(s) but I'd like to capture this left mouse down event if the mouse is used in a different application (e.g. Windows File Explorer).

Is that possible with AHK?

its possible but i believe you'd need to inject a dll into all processes. meaning, its not trivial. ahk's OnMessage will only monitor messages of its own process.

you could hack your way around this by implementing an ~LButton down hotkey, and checking the coordinates and window of the click with MouseGetPos

[lexikos]

I wouldn't call that a hack; more like the most efficient solution. LButton hotkeys fire when AutoHotkey's mouse hook receives a WM_LBUTTONDOWN message.

Even if you want to use a hook, you don't need a dll. AutoHotkey does it without a dll. You just need to use the right hook.

[drawback]

Ok, thanks!

@lexikos:
Any hints how to implement this? I only need to listen for this event for a specific application (for example: Windows File Explorer)

[lexikos]

???

implementing an ~LButton down hotkey

Code: Select all

~LButton::
   MsgBox You clicked?
   return

If you want to restrict it to specific applications, use the MouseIsOver example.

[drawback]

Sorry, you're right lexikos. I though about a specialized hook but a hotkey is sufficient in this case. Me culpa!