if (CTRL + C is down)

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Im trying to do something if CTRL is down, but not if CTRL + C is down, and I don't really get how to do it...

Here's my code:

C#

public Window()
{
    InitializeComponent();
    mskTime.KeyPress += new KeyPressEventHandler(keypressed);
}

private void keypressed(Object o, KeyPressEventArgs e)
{   
    // the C here doesn't work
    if (Control.ModifierKeys == Keys.Control && e.KeyChar != (char)Keys.C)
    {
         e.Handled = true;
    }
}

Posted 1-Apr-13 9:07am

Member 9953050

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Comments

Sergey Alexandrovich Kryukov 1-Apr-13 15:54pm

You always need to tag your application type and UI library you are using (WPF, Forms, ASP.NET, etc...).
—SA

Member 9953050 1-Apr-13 16:02pm

Oh sorry. It's a usual C# project in Visual Studio, probably default UI then. Hope that helps... I still haven't solved this since I'm very new to this, so if you wish - feel free to give a code example.

Sergey Alexandrovich Kryukov 1-Apr-13 16:05pm

There is no "default UI". You always choose some certain project from template, with Visual Studio. You should learn what you are using, otherwise you cannot get any help, at least not in UI.
Nevertheless, I provided a general answer you can use right now; please see.
—SA

Member 9953050 1-Apr-13 16:13pm

I'm using Windows Forms Application if it's that that's the UI. Well thanks for the answer. I tried to change to KeyDown, like:

mskTime.KeyDown += new KeyPressEventHandler(keypressed);

But it won't cope with KeyPressEventHandler, and KeyDownEventHandler just giver errors. Maybe you meant something else?

Sergey Alexandrovich Kryukov 1-Apr-13 16:20pm

You need to tag: "WinForms".

I already answered. And no, I did not mean anything else. If it give you errors, you screw it up, but how? Due to 1st of April traffic, my access to your hard drive is somewhat limited.

—SA

Member 9953050 1-Apr-13 16:20pm

Oh, it seems that H.Maadani came up with a fully working solution for me =). Thanks H.Maadani, and you too Sergey for helping me. Cheers =).

The Zetta 1-Apr-13 16:23pm

You're welcome. If it works for you, help others by choosing it as answer to your question, so if someone else is searching, he knows that there is an answer.

Member 9953050 1-Apr-13 16:23pm

Yeah, I'll do that.

Sergey Alexandrovich Kryukov 1-Apr-13 16:25pm

I provided further detail in my answer, after [EDIT].
—SA

2 solutions

Solution 1

Then you need to handle not KeyPress, but KeyDown or PreviewKeyDown. I'm not providing more detail because you did not tag UI library you are using or application type, but you will easily find out how to detect Ctrl key using the data passed in event arguments.

[EDIT]

Thank you for clarification. You need to use:
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.onkeydown.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.onpreviewkeydown.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.keydown.aspx[^],
or
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.previewkeydown.aspx[^].

To get an information of a key, see also: http://msdn.microsoft.com/en-us/library/system.windows.forms.keyeventargs.aspx[^].

Use:
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.previewkeydown.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.forms.keyeventargs.keycode.aspx[^].

—SA

Posted 1-Apr-13 9:54am

Sergey Alexandrovich Kryukov

Updated 1-Apr-13 10:24am

v2

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The Zetta · Accepted Answer · 2013-04-01T10:14:00

Solution 2

try this :

if ((Control.ModifierKeys == Keys.Control) && ((int)e.KeyChar != 3))
           {
               e.Handled = true;
           }

--------------------

Regards
H.Maadani

Posted 1-Apr-13 10:14am

The Zetta