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Hot to usa keybd_event ?

Posted on 1999-01-10
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370 Views
Last Modified: 2013-12-03
I have a problem with keybd_event.

I have Swedish keyboard and I want to use keybd_event to send "a" and "A" and how to send #!%&/()?;:,.-'* and send F1,F2,F3 and so on. Please help me.

/Fredrik
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Question by:freddeN
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LVL 4

Expert Comment

by:nil_dib
ID: 1418416
First you should map the virtualkey code in the scan code
using MapVirtualKey.
Then you can call keybd_event with the return value from MapVirtualKey.
For example this code calls the "Start menu" in Windows(Ctrl-Esc):
//scan code for Ctrl
unsigned      nCodeCtrl = MapVirtualKey(VK_CONTROL, 2);
//scan code for Esc
unsigned      nCodeEsc = MapVirtualKey(VK_ESCAPE, 2);

// Ctrl key down
keybd_event( VK_CONTROL, nCodeCtrl, 0,0      );
// Esc key down
keybd_event( VK_ESCAPE, nCodeEsc, 0,0      );
// Esc key up
keybd_event( VK_ESCAPE, nCodeEsc, KEYEVENTF_KEYUP,0      );
// Ctrl key up
keybd_event( VK_CONTROL, nCodeCtrl, KEYEVENTF_KEYUP,0      );
 
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Accepted Solution

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nil_dib earned 10 total points
ID: 1418417
Opps .. want to answer ..
So for sending an "A" :
unsigned      nCodeA = MapVirtualKey(0x41, 2); // 0x41 = 'A'

keybd_event( 0x41, nCodeA, 0,0      );
keybd_event( 0x41, nCodeA, KEYEVENTF_KEYUP,0      );

for F1, F2... use VK_F1, VK_F2 ...

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Author Comment

by:freddeN
ID: 1418418
Thanks..

But I have one last question that I hope you can answer.
Hot to use keybd_event and send characters like %&/()=?`! and also use Num Lock and the keys on that part of the keyboard.

/Fredrik
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LVL 4

Expert Comment

by:nil_dib
ID: 1418419
You can use those characters directly ...

unsigned      nCode = MapVirtualKey('%', 2);
keybd_event( '%', nCode ....
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Author Comment

by:freddeN
ID: 1418420
ok I will try..

Thanks for all help.

/Fredrik


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