apiswndproc.cs

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using System;
using System.Runtime.InteropServices;

namespace System.Runtime.InteropServices.APIs
{
	public class APIsWndProc
	{
		[DllImport("user32.dll")]
		public static extern IntPtr SetWindowLong(
			IntPtr window,
			int index,
			WndProc value);

		[DllImport("user32.dll")]
		public static extern IntPtr SetWindowLong(
			IntPtr window,
			int index,
			GetWndProc value);

		[DllImport("user32.dll")]
		public static extern IntPtr SetWindowLong(
			IntPtr window,
			int index,
			IntPtr value);

		[DllImport("user32.dll")]
		public static extern int GetWindowLong(
			IntPtr window,
			int index);

		[DllImport("user32.dll")]
		public static extern int CallWindowProc(
			IntPtr value,
			IntPtr Handle,
			int Msg,
			IntPtr WParam,
			IntPtr LParam);

		[DllImport("user32.dll")]
		public static extern int DefWindowProc(
			IntPtr Handle,
			int Msg,
			IntPtr WParam,
			IntPtr LParam);

		public delegate int GetWndProc(IntPtr hWnd, int Msg, IntPtr WParam, IntPtr LParam);
		public delegate void WndProc(ref System.Windows.Forms.Message m);
	}
}