Windows 的 API

代码如下:

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[DllImport("user32.dll")]
public static extern bool ReleaseCapture();

[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);

private void frmMain_MouseDown(object sender, MouseEventArgs e)
{
ReleaseCapture();
SendMessage(Handle, 0x0112, 0xF012, 0);
}

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