1.重寫wndproc
protected override void wndproc(ref message m)
else
}2.建立訊息
private const int wm_nclbuttondown = 0x00a1;
private const int wm_nchittest = 0x84;
private const int ht_caption = 0x2;
private const int ht_client = 0x1;
private void picturebox1_mousedown(object sender, mouseeventargs e)
3.呼叫api**
using system.runtime.interopservices;
[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 wm_syscommand = 0x0112;
public const int sc_move = 0xf010;
public const int htcaption = 0x0002;
//在窗體的_mousedown中加入如下**:
如:private void form1_mousedown(object sender, system.windows.forms.mouseeventargs e)
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