How to handle multiple key press in c#.net

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C#

I want to open the form on key press of Alt+F.
What to do for this. If any one have any idea.
Thanks in advance.

Posted 9-Sep-12 19:40pm

SamWakchaure

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_Amy 10-Sep-12 7:06am

What have you tried yet? The question should start from "This is what I tried" not from "This is what I want". Since you are a regular user of CP, you should not do these kinds of mistake.

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Prasad_Kulkarni · Answer 1 · 2012-09-09T19:44:00

Solution 1

Have a look on this search results[^]

Posted 9-Sep-12 19:44pm

Prasad_Kulkarni

**JF2015** · Answer 2 · 2012-09-09T19:46:00

Solution 2

Hi,

you need to subscribe to the "KeyDown" event. Here is an example:

C#

private void Form1_KeyDown(object sender, KeyEventArgs e)
{
  if (e.KeyCode == Keys.F && e.Modifiers == Keys.Alt)
  {
    //Show the form
  }
}

Posted 9-Sep-12 19:46pm

JF2015

prashant patil 4987 · Answer 3 · 2012-09-09T19:52:00

for windows Application:

C#

private void Form1_KeyDown(object sender, KeyEventArgs e)
       {
           if (e.Alt & e.KeyCode.ToString() == "F")
           {
               Form2 op = new Form2();
               op.Show();
           }
       }

for Web Application:

ASP.NET

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default7.aspx.cs"
 Inherits="Default7" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
   <title>Untitled Page</title>
  <script type="text/javascript">
  document.attachEvent('onkeyup', KeysShortcut);


// Now we need to implement the KeysShortcut
function KeysShortcut ()

{

    if (event.keyCode == 17) // 17 keycode is for Left control key

    {
      document.getElementById('<%= button1.ClientID %>').click();

    }

}
  </script>
</head>
<body>
   <form id="form1" runat="server">
   <div>
   <asp:ScriptManager ID="a" runat="server"></asp:ScriptManager>
   </div>
  <div id="target" style="background-color: gray">This is a simple div</div>
    <asp:Button ID="button1" runat="server" onclick="Button1_Click" />
   </form>
</body>


</html>

C#

protected void Button1_Click(object sender, EventArgs e)
   {
       Response.Redirect("About.aspx", false);
   }

abhijit80 · Answer 4 · 2012-09-10T00:38:00

Solution 5

check for keyboardhook exaples..

Posted 10-Sep-12 0:38am

abhijit80

Menon Santosh · Answer 5 · 2012-09-09T19:58:00

Solution 4

use this code

C#

if (e.KeyCode == Keys.F && e.Modifiers == Keys.Alt)
            {
               //do something
            }

Posted 9-Sep-12 19:58pm

Menon Santosh