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acCloseApplication when closing Metro apps

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aoeui

4 Posts

Posted - 10/26/2013 : 00:55:39

I'm using Windows 8.1 RTM.

I use

acCloseApplication(nil, gsx, gsy)

to close programs. For desktop programs, it works fine. But for Metro apps, it seems that the apps are actually crashed, not closed, because you can move your mouse to upper-left corner of the screen, you can still see your last app (without thumbnail, looks like just crashed).

Now I use

acSendKeys("%{F_4}")

instead, that is Alt+F4.

But Alt+F4 has a different effct than acCloseApplication. Alt+F4 closes the current foreground window, but acCloseApplication closes the window under the mouse cursor.

Rob

USA
2615 Posts

Posted - 10/26/2013 : 17:43:46

By default, Metro apps are suspended if they're not active (currently have focus). I used Spy++ to identify the proper keycode sequence to post which simulate ALT+F4, but unless the Metro App currently has focus, the messages are ignored. So basically, using acSendKeys("%{F_4}") is the only method to properly close a Metro app, but it must be active.

Also, note that WM_CLOSE does effectively crash the app, which gives the app a reported crash; too many crashes and an app may be reviewed by Microsoft, so I highly recommend using a modified script to check if the process is a Metro app and send ALT+F4 instead of acCloseApplication():

if acIsImmersiveProcess(acGetOwnerWindowByPoint(gsx,gsy)) == 1 then
	acActivateWindow(nil, gsx, gsy)
	acSendKeys("%{F_4}")
else
	acCloseApplication(nil, gsx, gsy) 
end

Of course, the script above doesn't consider the window's current focus/active state, but is just for illustrative purposes.

EDIT: Added call to activate the Metro app before sending ALT+F4...seems to work well on my initial testing.

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