How cant my application to Handle Function Keys that have already been assigned

Question

I am writing a terminal application on a Windows CE 6.0 platform.  The hardware is mini-netbook.  The application is written in EVC++ using MFC.   I am trying to trap the function keys so that the terminal can output a correct string to the server.

I tried trapping the function keys in the OnKeyUp and OnKeyDown events.   The results are the same regardless of which event i use,  F1, F2, F5, F8 and F10  all work properly.

F3 pops up a Enter Network Password Dialog box,  F6,F7 control the brightness of the screen, Not sure what F4 and F9 do 

So far I have tried the following to try and regain control of these keys:

I tried to use AllKeys(1) at the beginning of my program but that had no effect.

I also tried SHSetAppKeyWndAssoc.   I see that this function requires Aygshell.DLL,   my platform seems to have AYGSHELL1.DLL and AYGSHELL2.DLL.    I dont see any file named AYGSHELL.DLL 

I also looked in the registry to see if there were any key mappings in HKLM\Microsoft\Shell\  but I did not find anything.

does anyone know how I can process the rest of the Function Keys.    

Thanks for the help

Knk53

Answer 1

  As a follow up,    The other function keys do trigger the OnKey Events when the CTRL button is held down.

Must be a way to direct the actual (no modifier) key messages to my application.

thanks

Knk53

Ps sorry about the typos in the heading

Answer 2

I have now tried using UnregisterFunc1 to unattached the keys F6 and F7 from the brightness function.

I tired

 typedef bool (*UnregisterFunc1)(UINT,UINT);

HMODULE coreDLL = LoadLibrary(TEXT("coredll.dll"));

unregFunc1 = (UnregisterFunc1)GetrProcAddress(coreDLL,TEXT("UnregisterFunc1")):

if(unregFunc1 == NULL)

  Messagebox("Get Proc Failed",NULL,MB_OK);

bool regSuccess = (unregFunc1)(0,0x76);

if(regSuccess == FALSE)

  Messagebox("unreg failed",NULL,MB_OK);

this runs and i dont get any message boxes.   Unfortunately the function key still is

controlling the brightness.

Anyone have any ideas

thanks in advance

knk53

Answer 3

http://msdn.microsoft.com/en-us/library/ff621673

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