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Tip of the Day
Language: C#
Expertise: Intermediate
May 11, 2004

Processing a Native Window Message Inside a Non-visual Class

Say you have a dynamic library and you want to treat a native window message inside any non-visual class in that library.

Derive this class from NativeWindow as shown below. After creating the new class from Class1, you can pass the Handle (like IntPtr) of this class to any native function.


public class Class1: NativeWindow
{
	CreateParams cp = new CreateParams();

	public Class1()
	{
		// Create the actual window
		this.CreateHandle(cp);
	}

	protected override void WndProc(ref Message m)
	{
		if(m.Msg == WM_...)
		{
			// Do something here in response to messages
			return;
		}
		base.WndProc(ref m);
	}

}
Vladimir Shaposhnik
 
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