private int startX;
private int startY;
private void button2_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
startX = e.X;
startY = e.Y;
}
} private void button2_MouseMove(object sender, MouseEventArgs e)
{
this.Left += e.X - startX;
this.Top += e.Y - startY;
}为什么这样子是不对的呢?
private int startY;
private void button2_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
startX = e.X;
startY = e.Y;
}
} private void button2_MouseMove(object sender, MouseEventArgs e)
{
this.Left += e.X - startX;
this.Top += e.Y - startY;
}为什么这样子是不对的呢?
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private int startY;
private void Form_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
startX = e.X;
startY = e.Y;
}
}private void Form_MouseMove(object sender, MouseEventArgs e)
{
if (startX != 0)
{
this.Left += e.X - startX;
this.Top += e.Y - startY;
}
}private void Form_MouseUp(object sender, MouseEventArgs e)
{
startX = 0;
}
this.Left += 100;
这就是你想表达的意思吧
{
//这个位置能找到不?
InitializeComponent(); this.MouseDown += Form_MouseDown;
this.MouseMove += Form_MouseMove;
this.MouseUp += Form_MouseUp;
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 0x84:
base.WndProc(ref m);
if ((int)m.Result == 0x1)
m.Result = (IntPtr)0x2;
return;
}
base.WndProc(ref m);
}
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)
{
switch (m.Msg)
{
case 0x0084:
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;
case 0x0201://鼠标左键按下的消息
m.Msg = 0x00A1;//更改消息为非客户区按下鼠标
m.LParam = IntPtr.Zero;//默认值
m.WParam = new IntPtr(2);//鼠标放在标题栏内
base.WndProc(ref m);
break;
default:
base.WndProc(ref m);
break;
}
}此段代码拷贝到窗体代码空位处,即可实现拖动和拉伸无边框窗体的功能。超强超短。
真是得好好学学的呢。
最后采用lyx朋友的方法,谢谢各位~各种方法的实现值得好好学习一下~