Autohotkey sometimes stuck - autohotkey

Question

Prehistory:
Some time ago Skype has assigned Ctrl+R hotkey to make a new call. This setting can't be disabled.
Sometimes I confuse browser window with Skype window and made a call to many people instead of refreshing browser window (I need to refresh browser window very often because of profession).
So I made a script to prevent sending Ctrl+R hotkey to Skype window, it works perfect, but sometimes I can't send Ctrl+R anywhere, not only Skype window.
Code:
;#NoTrayIcon
$^r::
WinGetClass, class, A
if (class != "TConversationForm")
Send ^r
return
Compiled binary: http://random.net.ua/SkypePreventHotkey.exe
Autohotkey version: 1.1.14.03

Answer 1

I have two improvements:
Use #If(...) for context-sensitive hotkeys whenever possible. In my experience, #If is more reliable due to various reasons. Also, you won't have to worry about non-affected windows (e.g. by deciding what to send); in fact, I believe that non-affected windows receive the original native keystrokes if the #If... condition comes up false.
AHK_L has a cool window selector called ahk_exe which lets you identify windows by their process name, rather than their class/title. It's possible that different windows of the same program have different class names, e.g. Windows Media Player in minimized/maximized mode. Possibly, Skype has that, too. That's why for more complex applications, it is often reasonable to identify by process name.
Mixing these suggestions into a solution, we get this brief piece of code:
; I hope it's skype.exe ;)
#IfWinActive ahk_exe skype.exe
^r::return
Instead of programmatically saying "If the active window isn't Skype, we send CTRL + R", we're now saying "If the window is Skype, we do nothing".

Answer 2

You could try something like
#InstallKeybdHook
SendMode, Input ; <---typically more reliable than send play mode
~$*^r:: ;<--- ~ means pass command to machine * means fire regardless of other hotkey modifiers.
Send, {Blind}{Ctrl Down}
Send, {R}
Send, {Ctrl Up}
return
I use a program called ACT! for my database. Whenever I script hotkeys it like to be sent commands like this vs. what you initially had (not that it was wrong).
If that doesn't work you could try adding: Sleep, 50 between each send (produces a delay) to see if that works. If so, you can cut each delay by 1/2 until it stops working again.
-islanq

Answer 3

Another solution using Autohotkey
#IfWinActive ahk_class tSkMainForm ;Skype
;prevent call
^r::
#IfWinActive