How to disable System HotKeys?
How to disable System HotKeys?
(OP)
I want to create a 3d program using OpenGL and Software rendering (gdi). The main problem are the system hotkeys, because I don't want the user to be able to minimize/activate startmenu/press ALT-TAB, etc..
I know, using DirectDraw, SetCooperativeLevel with DDSCL_EXCLUSIVE|DDSCL_FULLSCREEN will solve the hotkey problem (not quite, really, CTRL-ALT-DEL is still working?!?)..
anyway, the point is I don't use DirectX.. I use OpenGL and (maybe) later I'll add support for a software rendering (even that one is using the gdi, not DirectDraw).
First, I tried SystemParametersInfo(SPI_SETSCREENSAVERRUNNING,0,&old,0); and it worked ok on Win95/Win98/WinMe, but it didn't work on WinNT/2000/XP... then I tried the RegisterHotKey(0,0,MOD_ALT,VK_TAB); to eliminate AT LEAST the ALT-TAB, and guess what? It worked ONLY on NT family (didn't work on Win9x/Me)... but this RegisterHotKey is not so good because it disables ONLY the ALT-TAB... anyone know of such a function, to disable all the system hotkeys in NT family, like the SystemParametersInfo(SPI_SETSCREENSAVERRUNNING...) does on Win9x? what is that SetCooperativeLevel doing so special anyway??
thanks in advance,
Grey Beast
I know, using DirectDraw, SetCooperativeLevel with DDSCL_EXCLUSIVE|DDSCL_FULLSCREEN will solve the hotkey problem (not quite, really, CTRL-ALT-DEL is still working?!?)..
anyway, the point is I don't use DirectX.. I use OpenGL and (maybe) later I'll add support for a software rendering (even that one is using the gdi, not DirectDraw).
First, I tried SystemParametersInfo(SPI_SETSCREENSAVERRUNNING,0,&old,0); and it worked ok on Win95/Win98/WinMe, but it didn't work on WinNT/2000/XP... then I tried the RegisterHotKey(0,0,MOD_ALT,VK_TAB); to eliminate AT LEAST the ALT-TAB, and guess what? It worked ONLY on NT family (didn't work on Win9x/Me)... but this RegisterHotKey is not so good because it disables ONLY the ALT-TAB... anyone know of such a function, to disable all the system hotkeys in NT family, like the SystemParametersInfo(SPI_SETSCREENSAVERRUNNING...) does on Win9x? what is that SetCooperativeLevel doing so special anyway??
thanks in advance,
Grey Beast
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RE: How to disable System HotKeys?
There is something in each of us we don't know. Something with great power.
RE: How to disable System HotKeys?
I'm running a kiosk type facility. I need to disable ALT-TAB combinations (for many reasons).
I am NOT a programmer of any sort. What I'd like to have, is 2 "files". 1 file, when I click it, will disable alt-tab combinations. The other file, when I click, will re-enable the combination.
Is there any such thing in existance? Or can someone write it for me?
Again, I'm NOT a programmer, so if you reply with 300 lines of code, I will have NO idea what to do with it.
I'm sorry for making my first post here so demanding, but I'm desperate.
Thanks to whomever in advance.
RE: How to disable System HotKeys?
The key in the registry is
CODE
You need to alternate the values between 1 (enabled ALT-TAB) and 0 (disable ALT-TAB). As most changes in the registry, this will require a reboot between changes to take effect.
N.B. This works for most versions of windows.
Mike Gagnon
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RE: How to disable System HotKeys?
CODE
[HKEY_CURRENT_USER\Control Panel\Desktop]
"CoolSwitch"="1"
Save this one as Disable Atl-tab.reg
CODE
[HKEY_CURRENT_USER\Control Panel\Desktop]
"CoolSwitch"="0"