winform无标题窗体点击任务栏最小化、还原功能
做winform开发的时候,常常为了美化界面,把窗体的FormBorderStyle属性设置为None,即所谓的无标题窗体,这个时候,在任务栏鼠标右击是没有菜单的,那么如何吧默认的系统菜单还原回来呢?
第一步,引用命名空间
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices;
第二步,把以下代码添加到Form的类中
#region 右击菜单
[DllImport("user32.dll", EntryPoint = "GetWindowLong", CharSet = CharSet.Auto)]
public static extern int GetWindowLong(HandleRef hWnd, int nIndex);
[DllImport("user32.dll", EntryPoint = "SetWindowLong", CharSet = CharSet.Auto)]
public static extern IntPtr SetWindowLong(HandleRef hWnd, int nIndex, int dwNewLong);
const int WS_CLIPCHILDREN = 0x2000000;
const int WS_MINIMIZEBOX = 0x20000;
const int WS_MAXIMIZEBOX = 0x10000;
const int WS_SYSMENU = 0x80000;
const int CS_DBLCLKS = 0x8;
protected override CreateParams CreateParams
{
get
{
CreateParams cp = base.CreateParams;
cp.Style = WS_CLIPCHILDREN | WS_MINIMIZEBOX | WS_SYSMENU;
cp.ClassStyle = CS_DBLCLKS;
return cp;
}
}
#endregion
OK。

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