public partial class Form1 : Form
{
[DllImport("User32.dll", EntryPoint = "SendMessage")]
private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
[DllImport("User32.dll", EntryPoint = "PostQuitMessage")]
private static extern IntPtr PostQuitMessage(int msg);
[DllImport("User32.dll", EntryPoint = "PostMessage")]
private static extern IntPtr PostMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
const int Guying_HTLEFT = 10;
const int Guying_HTRIGHT = 11;
const int Guying_HTTOP = 12;
const int Guying_HTTOPLEFT = 13;
const int Guying_HTTOPRIGHT = 14;
const int Guying_HTBOTTOM = 15;
const int Guying_HTBOTTOMLEFT = 0x10;
const int Guying_HTBOTTOMRIGHT = 17;
bool isMouseDown = false;
public Form1()
{
InitializeComponent();
this.FormBorderStyle = FormBorderStyle.None;
this.Paint += Form1_Paint;
this.SizeChanged += Form1_SizeChanged;
this.MouseMove += Form1_MouseMove;
this.MouseDown += Form1_MouseDown;
this.MouseUp += Form1_MouseUp;
this.Click += Form1_Click;
this.buttonClose.Click += Button1_Click;
this.FormClosed += Form1_FormClosed;
buttonMini.Click += ButtonMini_Click;
buttonMax.Click += ButtonMax_Click;
//this.Opacity = 0.999;
this.DoubleClick += Form1_DoubleClick;
this.Load += Form1_Load;
} private void Form1_Load(object sender, EventArgs e)
{
} private void Form1_SizeChanged(object sender, EventArgs e)
{
//畫紅色邊框
using (var g = this.CreateGraphics())
{
g.FillRectangle(new SolidBrush(this.BackColor), 0, 0, this.Width, this.Height);
g.DrawRectangle(Pens.Red, 0, 0, this.Width - 1, this.Height - 1); }
} private void Form1_DoubleClick(object sender, EventArgs e)
{
MessageBox.Show("Form1_DoubleClick");
} private void ButtonMax_Click(object sender, EventArgs e)
{ if (this.WindowState == FormWindowState.Maximized)
{
PostMessage(this.Handle, 0x0112, new IntPtr(0xF120), new IntPtr(0));
//this.WindowState = FormWindowState.Normal;
}
else
{
PostMessage(this.Handle, 0x0112, new IntPtr(0xf030), new IntPtr(0));
this.MaximumSize = Screen.FromHandle(this.Handle).WorkingArea.Size;
//this.WindowState = FormWindowState.Maximized;
}
} private void ButtonMini_Click(object sender, EventArgs e)
{
//this.WindowState = FormWindowState.Minimized;
PostMessage(this.Handle, 0x0112, new IntPtr(0xF020),new IntPtr(0));
} private void Form1_FormClosed(object sender, FormClosedEventArgs e)
{
MessageBox.Show("Form1_FormClosed事件");
} private void Button1_Click(object sender, EventArgs e)
{
PostQuitMessage(0);
//this.Close();
} private void Form1_Click(object sender, EventArgs e)
{
//Control.MousePosition
} private void Form1_MouseUp(object sender, MouseEventArgs e)
{
isMouseDown = false;
label1.Text = "MouseUp";
//using (var g = this.CreateGraphics())
//{ // //g.FillRectangle(new SolidBrush(this.BackColor), 0, 0, this.Width, this.Height);
// g.DrawRectangle(Pens.Red, 0, 0, this.Width - 1, this.Height - 1);
//}
} private void Form1_MouseDown(object sender, MouseEventArgs e)
{
isMouseDown = true;
label1.Text = "MouseDown";
} private void Form1_MouseMove(object sender, MouseEventArgs e)
{
if(e.Location.X<30 && e.Location.Y<30)
{
if(isMouseDown)
{ }
}
}
long i = 0;
private void Form1_Paint(object sender, PaintEventArgs e)
{
using (var g = e.Graphics)
{
g.DrawRectangle(Pens.Red, 0, 0, this.Width - 1, this.Height - 1);
}
} protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
//case 0x00A2:
// {
// base.WndProc(ref m);
// using (var g = this.CreateGraphics())
// {
// g.FillRectangle(new SolidBrush(this.BackColor), 0, 0, this.Width - 1, this.Height - 1);
// g.DrawRectangle(Pens.Red, 0, 0, this.Width - 1, this.Height - 1);
// }
// }
// break;
//case 0x00A1:
// { // }
// break;
//case 0x0112:
// {
// if (m.WParam == (IntPtr)0xF020)
// {
// m.Result = new IntPtr(1);
// }
// base.WndProc(ref m);
// break;
// }
case 0x00A3://WM_NCLBUTTONDBLCLK
{
//m.Result = (IntPtr)2;
//m.LParam = new IntPtr(0x0A0A); //默認值
//m.WParam = new IntPtr(20);
//base.WndProc(ref m);
//if(this.Size.Height> System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Height)
//{
// this.MaximumSize = Screen.FromHandle(this.Handle).WorkingArea.Size;
//}
Form1_DoubleClick(this, null);
ButtonMax_Click(this, null);
}
break;
case 0x0084://WM_NCHITTEST
base.WndProc(ref m);
Point vPoint = new Point((int)m.LParam & 0xFFFF,
(int)m.LParam >> 16 & 0xFFFF);
vPoint = PointToClient(vPoint);
//按下滑鼠左鍵時拖動表單
if (vPoint.X > 5 && vPoint.X < this.Width - 5 && vPoint.Y > 5 && vPoint.Y < this.Height-5)
{
m.Result = (IntPtr)2;
//Form1_MouseUp(this, null);
}
//按下滑鼠左鍵時放大縮小表單
else
{
if (vPoint.X <= 5)
if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOPLEFT;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOMLEFT;
else
{
m.Result = (IntPtr)Guying_HTLEFT;
//using (var g = this.CreateGraphics())
//{
// g.DrawRectangle(Pens.Red, 0, 0, this.Width - 1, this.Height - 1);
//}
}
else if (vPoint.X >= ClientSize.Width - 5)
if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOPRIGHT;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOMRIGHT;
else
{
m.Result = (IntPtr)Guying_HTRIGHT;
//SendMessage(this.Handle, 0x00A2, IntPtr.Zero, IntPtr.Zero);
}
else if (vPoint.Y <= 5)
m.Result = (IntPtr)Guying_HTTOP;
else if (vPoint.Y >= ClientSize.Height - 5)
m.Result = (IntPtr)Guying_HTBOTTOM;
}
break;
//case 0x0201: //滑鼠左鍵按下的訊息
// //m.Msg = 0x00A1; //更改訊息為非客戶區按下滑鼠
// //m.LParam = IntPtr.Zero; //默認值
// //m.WParam = new IntPtr(2);//滑鼠放在標題欄內
// base.WndProc(ref m);
// Form1_MouseDown(this, null);
// break;
//case 0x0202:
// base.WndProc(ref m);
// Form1_MouseUp(this, null);
// break;
default:
base.WndProc(ref m);
break;
}
}
}
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