复制代码 代码如下:

class WinAPI

{

[DllImport("coredll.dll")]

private static extern IntPtr SetCapture(IntPtr hWnd);

[DllImport("coredll.dll")]

private static extern IntPtr GetCapture();

public static IntPtr GetHWnd(Control ctrl)

{

IntPtr hOldWnd = GetCapture();

ctrl.Capture = true;

IntPtr hWnd = GetCapture();

ctrl.Capture = false;

SetCapture(hOldWnd);

return hWnd;

}

}