通过以下的一些代码可以实现捕获相关的一些消息事件;
以及可以通过调用 SetCloseMenu();实现关闭一些按钮功能如屏蔽关闭按钮功能等;
需要添加命名空间:using System.Runtime.InteropServices;
private const int WM_SYSCOMMAND = 0x112;
private const int MF_REMOVE = 0x1000;
private const int SC_RESTORE = 0xF120; //还原
private const int SC_MOVE = 0xF010; //移动
private const int SC_SIZE = 0xF000; //大小
private const int SC_MINIMIZE = 0xF020; //最小化
private const int SC_MAXIMIZE = 0xF030; //最大化
private const int SC_CLOSE = 0xF060; //关闭
[DllImport("USER32.DLL")]
public static extern int GetSystemMenu(int hwnd, int bRevert);
[DllImport("USER32.DLL")]
public static extern int RemoveMenu(int hMenu, int nPosition, int wFlags); private void SetCloseMenu()
{
int hMenu = GetSystemMenu(this.Handle.ToInt32(), );//移除关闭按钮
RemoveMenu(hMenu, SC_CLOSE, MF_REMOVE);
} /// <summary>
///
/// </summary>
/// <param name="m"></param>
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case WM_SYSCOMMAND:
switch (m.WParam.ToInt32())
{
case SC_MINIMIZE:
base.WndProc(ref m);
//捕获最小化消息
break;
case SC_RESTORE:
base.WndProc(ref m);
//捕获还原消息
break;
case SC_MAXIMIZE:
base.WndProc(ref m);
//捕获最大化消息
break;
default:
base.WndProc(ref m);
break;
}
break;
default:
base.WndProc(ref m);
break;
}
}