OnMessage(0x200, "OnMouseMove")

[scriptor2016]

One more question here tonight: OnMessage(0x200, "OnMouseMove"), from what I can see, monitors the GUI to see if the cursor is ontop of it *constantly*. So while the cursor is ontop, it continues to see that it is indeed ontop (kind of like a loop, until the cursor leaves)

I was looking to see if there's an OnMessage to monitor the GUI to see when the cursor enters the GUI, but only upon entry and then terminate the monitoring?

So in other words, when the cursor eventually enters the GUI, it should recognize the cursor's entrance, and then stop monitoring.

Hope this makes sense. I checked this page for all possible messages, and even tried a few, but none worked:

https://www.autohotkey.com/docs/misc/Se ... geList.htm

[Helgef]

Hello, there is a message called WM_MOUSELEAVE. Edit: fixed incorrect struct size. I didn't get it to work on 64 bit though

Code: Select all

OnMessage(0x200, "OnMouseMove")

gui, +hwndguiId

; This doesn't work on 64 bit
/*
typedef struct tagTRACKMOUSEEVENT {
  DWORD cbSize;
  DWORD dwFlags;
  HWND  hwndTrack;
  DWORD dwHoverTime;
} TRACKMOUSEEVENT, *LPTRACKMOUSEEVENT;
*/

WM_MOUSELEAVE:=0x2A3
cbSize:=A_PtrSize=4?16:24
TME_LEAVE:=0x00000002
dwFlags:=TME_LEAVE


VarSetCapacity(TRACKMOUSEEVENT, cbSize,0)
NumPut(cbSize, TRACKMOUSEEVENT, 0, "Uint")
NumPut(dwFlags, TRACKMOUSEEVENT, 4, "Uint")
NumPut(guiId, TRACKMOUSEEVENT, 8, "Ptr")
; NumPut(0, TRACKMOUSEEVENT, 8+A_PtrSize, "Uint") ; Not needed

if !DllCall("User32.dll\TrackMouseEvent", "Ptr", &TRACKMOUSEEVENT)
	Msgbox fail
else
	OnMessage(WM_MOUSELEAVE, "WM_MOUSELEAVE")

gui, show, w200 h200

OnMouseMove(){
	global TRACKMOUSEEVENT
	OnMessage(0x200, "OnMouseMove", 0)
	DllCall("User32.dll\TrackMouseEvent", "Ptr", &TRACKMOUSEEVENT)
	ToolTip % "Mouse entered gui @ " A_TickCount,0,0
}

WM_MOUSELEAVE(){
	ToolTip, % "Mouse left gui @ " A_TickCount,0,0
	OnMessage(0x200, "OnMouseMove")
}
esc::
guiclose:
	exitapp

[Alguimist]

Hello, there is a message called WM_MOUSELEAVE. I didn't get it to work on 64 bit though

4 + 4 + 8 + 4 ended up being 24.

Code: Select all

cbSize := A_PtrSize == 8 ? 24 : 16

[Helgef]

Indeed, sizeof(TRACKMOUSEEVENT); is 24 on 64 bit. Ty, I'll edit the code.