Could not get the crate keycode

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1.00/5 (2 votes)

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Hello
I could not get the key code for those characters which require shift key
like exclamtion mark,ampersand,crate,percent,star,brackets ...etc
in my program when I tried to get the code for ampersand for example ,the first step is to press the shift key the 2nd step is to press the crate key ,but the program immediately return the code for the shift.
which is equal 16 (my keyboard are set on Arabic saudia arabia)
I do not have a chance to press the ampersand

What I have tried:

C#

private void OnKeyDown(object sender, KeyEventArgs e)
{
   MessageBox.Show(e.KeyCode.ToString(), e.KeyValue.ToString());
}

Posted 12-May-16 5:13am

Engineer khalid

Updated 12-May-16 13:12pm

CHill60

v5

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Karthik_Mahalingam 12-May-16 11:29am

if (e.Shift)
{
MessageBox.Show(e.KeyCode.ToString(), e.KeyValue.ToString());
}

Sergey Alexandrovich Kryukov 12-May-16 11:57am

It depends on what it is. Please see my comment below.
—SA

Sergey Alexandrovich Kryukov 12-May-16 11:56am

KeyEventArgs... Which one? Full type name, please. Forms? WPF?
And then, the solution is: read MSDN documentation on this type with attention. This problem is not easy; it is very easy.
—SA

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CHill60 · Answer 1 · 2016-05-12T05:37:00

Solution 1

Personally I would use OnKeyUp

The KeyEventArgs parameter will also give you additional information on which other keys were pressed.

Eg look at this code snippet

C#

private void Form3_KeyUp(object sender, KeyEventArgs e)
{
    Console.WriteLine("{0} : {1}", e.KeyCode, e.KeyValue);
    if(e.Alt) Console.WriteLine("with Alt");
    if (e.Control) Console.WriteLine("with Control");
    if (e.Shift) Console.WriteLine("with Shift");
}

(The output will appear in the output window in Visual Studio)

Posted 12-May-16 5:37am

CHill60

Comments

Engineer khalid 12-May-16 17:38pm

To Karthik Bangalore
i am not looking for keycode for the shift key ,i am looking for crate ,excalamation ,ambersand...
To Sergey Alexandrovich
my program is a c sharp window form.. i will look at the msdn .my grade will take time

CHill60 12-May-16 19:31pm

If you want to reply to particular comments then use the "Reply" link next to those comments

Engineer khalid 12-May-16 19:09pm

i guess the best thig i have got is to use
private void OnKeyPressed(object sender, KeyPressEventArgs e)
{
switch (e.KeyChar)
{
case 'q':
MessageBox.Show(e.KeyChar.ToString(), "Hellow");
break;
case 'w':
MessageBox.Show(e.KeyChar.ToString(), "Hellow");
break;
case 'e':
MessageBox.Show(e.KeyChar.ToString(), "Hellow");
break;
case 'r':
MessageBox.Show(e.KeyChar.ToString(), "Hellow");
break;
case 't':
MessageBox.Show(e.KeyChar.ToString(), "Hellow");
break;
case 'y':
MessageBox.Show(e.KeyChar.ToString(), "Hellow");
break;
case '^':
MessageBox.Show(e.KeyChar.ToString(), "Hellow");
break;
case '&':
MessageBox.Show(e.KeyChar.ToString(), "Hellow");
break;
;
}//switch

//if(e.KeyChar=='&' && e.KeyValue == 55) ;
}

CHill60 12-May-16 19:33pm

As I said ... I would use the KeyUp event. Don't use MessageBox in those events.
Now have another look at the code you have just posted ... what is the point of a switch if you are doing the same thing for all those cases?

Engineer khalid · Answer 2 · 2016-05-12T13:12:00

//i guess the best thig i have got is to use

C#

<pre lang="C#">private void OnKeyPressed(object sender, KeyPressEventArgs e)
{
switch (e.KeyChar)
{
case &#39;q&#39;:
MessageBox.Show(e.KeyChar.ToString(), &quot;Hellow&quot;);
break;
case &#39;w&#39;:
MessageBox.Show(e.KeyChar.ToString(), &quot;Hellow&quot;);
break;
case &#39;e&#39;:
MessageBox.Show(e.KeyChar.ToString(), &quot;Hellow&quot;);
break;
case &#39;r&#39;:
MessageBox.Show(e.KeyChar.ToString(), &quot;Hellow&quot;);
break;
case &#39;t&#39;:
MessageBox.Show(e.KeyChar.ToString(), &quot;Hellow&quot;);
break;
case &#39;y&#39;:
MessageBox.Show(e.KeyChar.ToString(), &quot;Hellow&quot;);
break;
case &#39;^&#39;:
MessageBox.Show(e.KeyChar.ToString(), &quot;Hellow&quot;);
break;
case &#39;&amp;&#39;:
MessageBox.Show(e.KeyChar.ToString(), &quot;Hellow&quot;);
break;
;
}//switch

//if(e.KeyChar==&#39;&amp;&#39; &amp;&amp; e.KeyValue == 55) ;
}</pre>