自己添加最大化什么的，添加设置显示还是不显示
using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace contextUI
{
public partial class ConextForm : Form
{
public bool Sizeable = true;
[DllImport("Gdi32.dll", EntryPoint = "CreateRoundRectRgn")]
private static extern IntPtr CreateRoundRectRgn
(
int nLeftRect,
int nTopRect,
int nRightRect,
int nBottomRect,
int nWidthEllipse,
int nHeightEllipse
);
[DllImport("dwmapi.dll")]
public static extern int DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS pMarInset);
[DllImport("dwmapi.dll")]
public static extern int DwmSetWindowAttribute(IntPtr hwnd, int attr, ref int attrValue, int attrSize);
[DllImport("dwmapi.dll")]
public static extern int DwmIsCompositionEnabled(ref int pfEnabled);
private bool m_aeroEnabled = false;
private const int CS_DROPSHADOW = 0x00020000;
private const int WM_NCPAINT = 0x0085;
private const int WM_ACTIVATEAPP = 0x001C;
public struct MARGINS
{
public int leftWidth;
public int rightWidth;
public int topHeight;
public int bottomHeight;
}
private const int WM_NCHITTEST = 0x84;
private const int HTCLIENT = 0x1;
private const int HTCAPTION = 0x2;
protected override CreateParams CreateParams
{
get
{
m_aeroEnabled = CheckAeroEnabled();
CreateParams cp = base.CreateParams;
if (!m_aeroEnabled)
cp.ClassStyle |= CS_DROPSHADOW;
return cp;
}
}
private bool CheckAeroEnabled()
{
if (Environment.OSVersion.Version.Major >= 6)
{
int enabled = 0;
DwmIsCompositionEnabled(ref enabled);
return (enabled == 1) ? true : false;
}
return false;
}
const int HTLEFT = 10;
const int HTRIGHT = 11;
const int HTTOP = 12;
const int HTTOPLEFT = 13;
const int HTTOPRIGHT = 14;
const int HTBOTTOM = 15;
const int HTBOTTOMLEFT = 0x10;
const int HTBOTTOMRIGHT = 17;
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
switch (m.Msg)
{
case WM_NCPAINT:
if (m_aeroEnabled)
{
var v = 2;
DwmSetWindowAttribute(this.Handle, 2, ref v, 4);
MARGINS margins = new MARGINS()
{
bottomHeight = 1,
leftWidth = 1,
rightWidth = 1,
topHeight = 1
};
DwmExtendFrameIntoClientArea(this.Handle, ref margins);
}
break;
case 0x0084:
if (Sizeable)
{
base.WndProc(ref m);
Point vPoint = new Point((int)m.LParam & 0xFFFF, (int)m.LParam >> 16 & 0xFFFF);
vPoint = PointToClient(vPoint);
if (vPoint.X <= 5)
{
if (vPoint.Y <= 5)
{
m.Result = (IntPtr)HTTOPLEFT;
}
else
if (vPoint.Y >= ClientSize.Height - 5)
{
m.Result = (IntPtr)HTBOTTOMLEFT;
}
else
{
m.Result = (IntPtr)HTLEFT;
}
}
else
if (vPoint.X >= ClientSize.Width - 5)
{
if (vPoint.Y <= 5)
{
m.Result = (IntPtr)HTTOPRIGHT;
}
else
if (vPoint.Y >= ClientSize.Height - 5)
{
m.Result = (IntPtr)HTBOTTOMRIGHT;
}
else
{
m.Result = (IntPtr)HTRIGHT;
}
}
else
if (vPoint.Y <= 5)
{
m.Result = (IntPtr)HTTOP;
}
else
{
if (vPoint.Y >= ClientSize.Height - 5)
{
m.Result = (IntPtr)HTBOTTOM;
}
}
}
break;
default:
break;
}
}
private void InitializeComponent()
{
this.SuspendLayout();
this.ClientSize = new Size(284, 261);
this.DoubleBuffered = true;
this.Name = "conextForm";
this.ResumeLayout(false);
}
}
}
