How to load System.Windows.Input namespace in my C# App?

Question

_{Monday, September 20, 2010 6:57 PM}

Hi, I have a test C# application that needs to use KeyBoard.IsKeyDown() method. This method is in System.Windows.Input namespace. I couldn't find out that namespce. How to load this namespace to my project in order to use the method? Thanks!

All replies (5)

_{Tuesday, September 21, 2010 10:30 AM ✅Answered}

That's because System.Windows.Input.Key is on WindowsBase, not PresentationCore.

Key Enumeration

Paulo Morgado

_{Monday, September 20, 2010 8:04 PM}

System.Windows.Input namespace is only loaded in a WPF project and not any WF (Windows Form) project. It is loaded by default in WPF.

Ali Hamdar (alihamdar.com)

_{Monday, September 20, 2010 8:28 PM}

Namespaces aren't loaded. Assemblies are loaded.

Namespaces are a logical organization of types and assemblies are a phisical organisations of types. Assemblies are deployment units.

Paulo Morgado

_{Tuesday, September 21, 2010 1:15 AM}

Hi,

I think I have learned that the system.windows.input is a part of presentationcore assembly. Once I add a reference for presentationcore, I have the system.windows.input added. My problem is I couldn't get the keyboard.iskeydown()method working. Here is my code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication6
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            bool IsKeyPress = System.Windows.Input.Keyboard.IsKeyDown(System.Windows.Input.Key.Return);
        }
    }
}

It keeps saying "key is not a type or namespace when I use here. I couldn't even find the key as a member of input. But this code is from the C# help file. I am sure I must have some thing wrong, but I really don'y know what it is. Can anyone point it out for me? Thanks!

Gene.

_{Tuesday, September 21, 2010 11:43 AM}

http://msdn.microsoft.com/en-us/library/system.windows.input.aspxMark Post As Answer If It Helped You and Also Take Some Time Out To Mark The Thread Resolved.