谁能帮我一下， [DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hWnd,int wMsg,int wParam,int lParam);
public const int w = 0x0112;
public const int move = 0xf010;
public const int caption = 0x0002;

SendMessage(this .Handle ,w,move +caption ,0);
谁能帮我解释一下这个函数的参数，我是查了好多地方，也没查到这个资料，所以才来麻烦大家的。首次发贴，在这里学了不少东西，谢谢大家。

就是想要实现无标题窗体的拖动。怎么做？

前几天都有人发过.

谢谢，但是能不能帮我解释一下这个
[DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hWnd,int wMsg,int wParam,int lParam);
public const int w = 0x0112;
public const int move = 0xf010;
public const int caption = 0x0002;
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
ReleaseCapture();
SendMessage(this .Handle ,w,move +caption ,0);
}

谢谢，不过用你的方法生成成功，但是无法实现窗体的拖动……

看看你的怎么引用的?

就是完全按你的意思，而你这种方法只能在窗体中按下鼠标，然后左上角拖到鼠标单击出，而我想要的是单击窗体后，窗体和鼠标一起移动。
你能不能帮我看看我贴的那段代码？
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
bool mD;

private void Form1_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
mD= true;
}

}

private void Form1_MouseUp(object sender, MouseEventArgs e)
{
mD = false;

}

private void Form1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (mD)
{
this.Location = new Point(MousePosition.X, MousePosition.Y);
}
}

}

我表达能力不是很好，反正两种拖动的效果感觉上不一样

public partial class KyanForm : Form
{
[DllImport("User32.dll", EntryPoint = "SendMessage")]
private static extern int SendMessage(int hWnd, int Msg, int wParam, int lParam);
[DllImport("User32.dll", EntryPoint = "ReleaseCapture")]
private static extern int ReleaseCapture();

public KyanForm()
{
InitializeComponent();
}

private void KyanForm_MouseDown(object sender, MouseEventArgs e)
{
ReleaseCapture();
SendMessage(this.Handle.ToInt32(), 0x0112, 0xF012, 0);

}

[此贴子已经被作者于2006-12-3 23:11:00编辑过]

我才看明白你的帖子
namespace _21
{
public partial class Form1 : Form
{
//这里

bool mD=false;

public Form1()
{
InitializeComponent();
}

private void Form1_MouseDown(object sender, MouseEventArgs e)
{
if (mD == false)
{
mD = true;
}
else
{
mD = false;
}

}

private void Form1_MouseMove(object sender, MouseEventArgs e)
{

if (mD)
{
this.Location = new Point(MousePosition.X - 30, MousePosition.Y - 30);//这个－30是你鼠标在窗口中的位置自己调！！不能－0，或是＋.
System.Windows.Forms.Cursor.Clip = new Rectangle(this.Location, this.Size);
}
else
{
System.Windows.Forms.Cursor.Clip = new Rectangle(0,0,1024,768);
}

}

}
}

[此贴子已经被作者于2006-12-4 0:05:52编辑过]