Windows Forms: forms, events

Sample task

Window with red glass

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• 
• The window:
  • Movable, resizable, maximazable, minimizable
  • Semitransparent red part
  • position: always in the middle of the window
  • size: always 75% of window's height and width
• Technical requirements:
  • Gray parts of the window must be always drawn using standard color for forms background
  • 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
  • Visible problems with repainting during window's resizing are acceptable
• Hints:
  • Form: Opacity, TransparencyKey

• Approximate points:
  • red semitransparent part in accordance with technical requirements: 10.0