How to register to Focus Loss event?

[HolmesShelock]

I am developing a text pasting application which requires the focus to be on some other application. That's why, I have created its GUI as

Local $hMainGUI = GUICreate("Text Paste", 700, 300, -1, -1, -1, BitOR($WS_EX_TOOLWINDOW, $WS_EX_TOPMOST, $WS_EX_NOACTIVATE))

The application will trigger keystrokes to the target application continuously. Let's say, the focus is on Windows Notepad which is receiving those keystrokes. I want, if the focus is shifted from Notepad to some other application by an inadvertent click of the user, an event to be generated which is captured by my application to stop the series of key-presses. Can anybody please suggest how can I achieve that?

[binhnx]

Take a look at WM_ACTIVATE message

GUIRegisterMsg($WM_ACTIVATE, Wm_Activate)

Func Wm_Activate($hWnd, $uMsg, $wParam, $lParam)
  If ($wParam = 0) Then ; Inactivated
    ; Do smth
  EndIf
  Return $GUI_RUNDEFMSG
EndFUnc

PS: Next time, try asking Prof. MoriatyJames first

[HolmesShelock]

Take a look at WM_ACTIVATE message

GUIRegisterMsg($WM_ACTIVATE, Wm_Activate)

Func Wm_Activate($hWnd, $uMsg, $wParam, $lParam)
  If ($wParam = 0) Then ; Inactivated
    ; Do smth
  EndIf
  Return $GUI_RUNDEFMSG
EndFUnc

PS: Next time, try asking Prof. MoriatyJames first

 

Dear Dr. Watson,

 

The code snippet above does not work. If the focus is lost from the current window, my application is never being able to listen to WM_ACTIVATE messages.

[MikahS]

Just check if your window is the active window, if not then blockinput.

[HolmesShelock]

Just check if your window is the active window, if not then blockinput.

 

No, it's not. As I have already mentioned in the OP,

Local $hMainGUI = GUICreate("Text Paste", 700, 300, -1, -1, -1, BitOR($WS_EX_TOOLWINDOW, $WS_EX_TOPMOST, $WS_EX_NOACTIVATE))

Edited November 5, 2014 by HolmesShelock

[MikahS]

 

No, it's not. As I have already mentioned in the OP,

Local $hMainGUI = GUICreate("Text Paste", 700, 300, -1, -1, -1, BitOR($WS_EX_TOOLWINDOW, $WS_EX_TOPMOST, $WS_EX_NOACTIVATE))

 

Excuse my English, but as you can see, it will not be active in the first place. I got that from your first post (I can read thank you ). What I meant was see what the active window is, and put it into a variable, then constantly check whether that is the active window, if it isn't then its obviously not active. Which, you can then block the input or whatever you want to do from there.

Questions?