Resources, dialog boxes, controls

Sample task

Owner-draw menu

• Demonstration
• Create application with 2 menu items:
  • 'Modify menu' - opens modeless dialog box with options to add and remove menu items:
    • textbox (edit control) for menu item's string
    • 'Browse' button - opens standard dialog box for choosing icon file
    • selected icon preview
    • 'Append' button - if string and icon are specified appends new menu item to the 'Test' menu
    • 'Remove the last' button - removes the last menu item from 'Test' menu
    • 'Close' button - closes the dialog box
  • 'Test'
    • owner draw menu items with icons (as in the demonstration)
      • icons scaled to size 16 x 16
      • width and height of menu items dependend on the length of the string and system font used for menus
    • 4 predefined menu items with icons taken from the system: error, exclamation, information, question
    • after choosing any item from 'Test' menu message box with the string from this menu item should be displayed
• Hints:
  • GetMenu(), GetSubMenu(), AppendMenu(), DeleteMenu(), GetMenuItemInfo(), MF_OWNERDRAW
  • WM_MEASUREITEM, WM_DRAWITEM
  • GetTextExtentPoint32(), SystemParametersInfo(SPI_GETNONCLIENTMETRICS)
  • LoadIcon(), LoadImage()
  • DrawIconEx()
  • GetOpenFileName(), #include "commdlg.h"

• Points:
  • owner draw menu
    • scaled icon - 1.0
    • string with proper alignment - 1.0
    • checking string's width - 0.5
    • using system menu font for measuring - 1.0
    • selection rectangle - 0.5
    • 4 predefined items with icons from the system - 1.0
    • message box with menu item's string after choosing it - 0.5
  • dialog box for menu modifications
    • modeless dialog box - 0.5
    • textbox for the string - 0.5
    • buttons - 0.5
    • standard file dialog (with filter for .ico files) - 1.0
    • icon preview - 0.5
    • appending menu item - 0.5
    • removing the last menu item - 1.0