如何从MDI父窗体中的MDIClient组件中移除3d边框(凹陷)
本文关键字:3d 边框 凹陷 组件 MDIClient MDI 窗体 | 更新日期: 2023-09-27 18:11:13
我在VS2010中开发WinForms MDI应用程序。. NET 4.0),我只是讨厌MDI父窗体中的3D边界。
那么关于如何删除它(使其平坦或只是没有边框)有什么想法吗?
我知道这是一个旧的帖子,但我花了一些时间和痛苦的工作3D边界的东西(因为我也需要它)从碎片在互联网上,包括:
来自Jacob Slusser在codeproject.com的页面元素(访问日期:2012年8月1日)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace MDITest
{
public static class MDIClientSupport
{
[DllImport("user32.dll")]
private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
[DllImport("user32.dll")]
private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
[DllImport("user32.dll", ExactSpelling = true)]
private static extern int SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
private const int GWL_EXSTYLE = -20;
private const int WS_EX_CLIENTEDGE = 0x200;
private const uint SWP_NOSIZE = 0x0001;
private const uint SWP_NOMOVE = 0x0002;
private const uint SWP_NOZORDER = 0x0004;
private const uint SWP_NOREDRAW = 0x0008;
private const uint SWP_NOACTIVATE = 0x0010;
private const uint SWP_FRAMECHANGED = 0x0020;
private const uint SWP_SHOWWINDOW = 0x0040;
private const uint SWP_HIDEWINDOW = 0x0080;
private const uint SWP_NOCOPYBITS = 0x0100;
private const uint SWP_NOOWNERZORDER = 0x0200;
private const uint SWP_NOSENDCHANGING = 0x0400;
public static bool SetBevel(this Form form, bool show)
{
foreach (Control c in form.Controls)
{
MdiClient client = c as MdiClient;
if (client != null)
{
int windowLong = GetWindowLong(c.Handle, GWL_EXSTYLE);
if (show)
{
windowLong |= WS_EX_CLIENTEDGE;
}
else
{
windowLong &= ~WS_EX_CLIENTEDGE;
}
SetWindowLong(c.Handle, GWL_EXSTYLE, windowLong);
// Update the non-client area.
SetWindowPos(client.Handle, IntPtr.Zero, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
return true;
}
}
return false;
}
}
}
在form load事件中调用:
form.SetBevel(false);
不要忘记更改命名空间,并记住这是一个扩展方法,但它可以更改为另一个类或MDI父窗体中的方法调用。
如果您不希望导入外部库,也有以下作弊,重新定位/调整大小的mdi容器控件。
protected override void OnLoad(EventArgs e)
{
var mdiclient = this.Controls.OfType<MdiClient>().Single();
this.SuspendLayout();
mdiclient.SuspendLayout();
var hdiff = mdiclient.Size.Width - mdiclient.ClientSize.Width;
var vdiff = mdiclient.Size.Height - mdiclient.ClientSize.Height;
var size = new Size(mdiclient.Width + hdiff, mdiclient.Height + vdiff);
var location = new Point(mdiclient.Left - (hdiff / 2), mdiclient.Top - (vdiff / 2));
mdiclient.Dock = DockStyle.None;
mdiclient.Size = size;
mdiclient.Location = location;
mdiclient.Anchor = AnchorStyles.Left | AnchorStyles.Top | AnchorStyles.Right | AnchorStyles.Bottom;
mdiclient.ResumeLayout(true);
this.ResumeLayout(true);
base.OnLoad(e);
}
尝试将FormBorderStyle属性更改为FixedSingle