Creating a Virtual Keyboard

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Hi,

I need to create a virtual keyboard using MFC.
i am a newbie and have no clue as to how i should start.

Posted 26-Jul-11 0:37am

Member 8112150

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3 solutions

Solution 1

Codeproject:

XKeyboard - on-screen keyboard[^]

Virtual On-Screen Keyboard Example[^]

Posted 26-Jul-11 0:52am

వేంకటనారాయణ(venkatmakam)

Comments

Member 8112150 26-Jul-11 7:17am

Thanks a lot.
the keyboard i need to create should be able to toggle languages.
do u know how i can do the message mapping for japanese characters?

Kim Togo 28-Jul-11 2:29am

Good links.

Solution 2

There is a same question on CP with solution.
Take a look there-CP Question[^]

Posted 26-Jul-11 1:04am

RaviRanjanKr

Comments

Member 8112150 26-Jul-11 7:18am

do u know how i can do the message mapping for japanese characters?

RaviRanjanKr 28-Jul-11 6:03am

sorry I've no any Ideas about it.

Kim Togo 28-Jul-11 2:29am

Good link.

RaviRanjanKr 28-Jul-11 6:03am

Thanks :)

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-07-26T09:21:00

There are two keys points here, if you want the real Virtual Keyboard which would work system-wide.

For emulation of keyboard input, use Windows API SendInput, see http://msdn.microsoft.com/en-us/library/ms646310(v=vs.85).aspx[^].

Now the big problem is that you need to have a keyboard focus on the control where you "type" data. It will create a problem for the Virtual Keyboard window, as it will grab focus on each click. To overcome this problem, you need two things: the Virtual Keyboard window should not be able to activate. At the same time, it should be on top. So, you need two unusual styles: WS_EX_NOACTIVATE | WS_EX_TOPMOST.

To set the style during run time, you will need to call SetWindowLong, second parameter must be GWL_EXSTYLE. See http://msdn.microsoft.com/en-us/library/ms633591%28v=vs.85%29.aspx[^].

—SA