Modal dialog boxes

Version B

Ragion of Window

• Demonstration
• The main window:
  • background color - can be changed in settings dialog (default: black)
  • shape - can be changed in settings dialog (default: rectangle)
  • menu:
    • Exit
    • Settings - accelerators: Ctrl+S and Alt+S
• Settings dialog box:
  • modal
  • buttons:
    • Apply - applies new settings without closing the dialog box
    • OK - closes the dialog box and applies new settings
    • Cancel - closes the dialog box without applying new settings
    • '...' - opens common dialog box for choosing color
  • scroll bars - set width and height of the ellipse for the shape
  • preview of the shape, updated automatically after changing color or ellipse's settings
• Hints:
  • SetWindowRgn(), CreateRoundRectRgn()
  • preview of the shape
    • static control with SS_BITMAP type (choose Picture Control from Visual Studio's Toolbox and change Type property to Bitmap)
    • create bitmap and set it for the control:
      SendMessage( hCtrl, (UINT)STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hBmp );
  • DialogBox(), GetDlgItem()
  • ChooseColor(), #include "commdlg.h"

• Approximate points:
  • menu and accelerators: 1.0
  • changing background color of the main window: 1.5
  • changing shape of the main window: 1.5
  • modal dialog box: 0.5
  • OK, Apply, Cancel buttons functionality: 1.5
  • common dialog for choosing color: 1.0
  • preview of the shape 1.5
  • scroll bars for changing the shape: 1.5