Windows Forms: forms, events

Mouse tracking

• Demonstration
• 4 windows tracking current mouse position:
  • positioned as in the demonstration
  • do not let to move one of these windows independently
  • transparency
    • default: ca. 50%
    • '+' key: increasing the transparency, '-' key: decreasing the transparency
  • mouse cursor:
    • NS or WE sizing (see the demonstration)
  • background color - system color of active window's caption
  • always on top
  • only one window visible on the taskbar and in Alt+Tab window
  • dragging using left mouse button: changing of windows' sizes (see the demonstration)
  • when the Scroll Lock key is turned on stop tracking the mouse
• Technical requirements:
  • Drawing is forbidden (no GDI, GDI+ or other graphical library function can be used)
  • Using controls is forbidden (i.e. Form.Controls collection cannot be used in any way)
  • More than 1 window can be created, but always only the main window can be visible on the taskbar and in Alt-Tab switch window
• Hints:
  • see Sample Task 2
  • Application.Run(), Application.Exit()
  • Form class, Timer class, Cursors class
  • Cursor.Position, Screen.PrimaryScreen.Bounds
  • Control.IsKeyLocked()

• Approximate points:
  • 4 windows: 1.0
  • positions and changing of the size: 2.0
  • tracking the mouse cursor (also checking the state of Scroll Lock key): 2.5
  • mouse cursors: 0.5
  • background color: 0.5
  • always on top: 0.5
  • only one window visible on the taskbar: 0.5
  • transparency (also changing of transparency): 2.5

• Links for uploading:
  • Solutions
  • Corrections