How can I capture mouse events that occur outside of a (WPF) window?

Question

I have a Window element that has WindowStyle=\"None\" and AllowsTransparency=\"True\", therefore it has no title bar and supports tran

Answer 1

Try it this way:

// method to convert from 'old' WinForms Point to 'new' WPF Point structure:
public System.Windows.Point ConvertToPoint(System.Drawing.Point p)
{
    return new System.Windows.Point(p.X,p.Y);
}

// some locals you will need:
bool mid = false; // Mouse Is Down
int x=0, y=0;

// Mouse down event
private void MainForm_MouseDown(object sender, MouseButtonEventArgs e)
{
   mid=true;
   Point p =  e.GetPosition(this);

   x = (int)p.X; 
   y = (int)p.Y;
}

// Mouse move event
private void MainForm_MouseMove(object sender, MouseButtonEventArgs e)
{
   if(mid)
   {
        int x1 = e.GetPosition(this).X;
        int y1 = e.GetPosition(this).Y;

        Left = x1-x;
        Top = y1-y;
   }
}

// Mouse up event
private void MainForm_MouseUp(object sender, MouseButtonEventArgs e)
{
    mid = false;
}