Question

Hey, i have kinda silly problem, i need to set Point Pos as mouse current position in one if statement and in another statement move mouse cursor to setted position. First i need assign global Point variable but then Cursor moves to assigned variable and i don’t want that happens.
Part of source:

protected override void WndProc(ref Message m)
        {
            Point Pos = new Point(0, 0);

            if (m.Msg == 0x0312)
            {
                int id = m.WParam.ToInt32();
                if (id == 0)
                {
                    Pos.X = MousePosition.X;
                    Pos.Y = MousePosition.Y;  
                }
                if (id == 1)
                {
                    Cursor.Position = (Pos);
                }
            }
            base.WndProc(ref m);
        }

Answer 1

If you intend to capture the mouse position and restore it later then you have to make the Pos variable a field of your class instead of a local variable of the method. Like this:

    private Point Pos;

    protected override void WndProc(ref Message m)
    {
        if (m.Msg == 0x0312)   // Trap WM_HOTKEY
        {
            switch (m.WParam.ToInt32()) {
               case 0: Pos = Cursor.Position; break;
               case 1: Cursor.Position = Pos; break;
            }
        }
        base.WndProc(ref m);
    }