HP 48gII hp 48gII_user's manual_English_E_HDPMSG48E67_V2.pdf - Page 646

Menu specification and CST variable From the two exercises shown above we notice that the most general menu specification list include a number of sub-lists equal to the number of items to be displayed in your custom menu. Each sub-list contains a label for the menu key followed by a function, expression, label, or other object that constitutes the effect of the menu key when pressed. Care must be exercised in specifying the menu list in ALG mode versus RPN mode. In RPN mode, the menu key action can be simply a calculator command (e.g., EXP, LN, etc., as shown above), while in ALG mode it has to be a string with the command prompt whose argument needs to be provided by the user before pressing ` and completing the command. The examples above illustrate the difference. The general form of the argument list for commands TMENU or MENU in ALG mode is {"label1","function1(","ls1(","rs1("}, {"label2", "function2(","ls2(","rs2("},...} While, in RPN mode, the argument list has this format {"label1", function1, ls1, rs1}, {"label2", function2, ls2, rs2},...} In these specifications, function1, function 2, etc., represent the main operation of the key, while ls1, ls2, ..., etc., represent the left-shift operation of the key. Similarly, rs1, rs2, ..., etc., represent the right-shift operation of the key. This list will be stored in variable CST if command MENU is used. You can have a different CST variable in each sub-directory, and you can always replace the current contents of CST with those of other variables storing the properly formatted list to produce another custom menu. Note: You can use a 21x8 GROB (See Chapter 22) to produce an icon in the soft menu keys. As an example, try, in RPN mode: {{GROB 21 8 00000EF908FFF900FFF9B3FFF9A2FFF9A3FFF9A0FFF388FF "hp" }} ` MENU This will place the hp logo on key A. Pressing A places the text 'hp' in the command line. Page 20-4