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  • special characters

    am working on an app where there will be a lot of characters for engineering to be placed in character fields - client is coming from Alpha DOS, and apparently Alpha DOS lets you use the alt key to input from the extended ascii character set, whreas apparently Alpha 5 does not.

    how do others deal with this kind of issue?
    Cole Custom Programming - Terrell, Texas
    972 524 8714
    martin_w_cole@msn.com

    ____________________
    "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

  • #2
    RE: special characters

    I use them all the time
    = alt+0169
    = alt+0149

    Comment


    • #3
      RE: special characters

      Martin,

      Also check out the "toolbars" application note on the Alpha Learning Center page. Ed Larrabee's doc develops a methodology for automating field insertions which you should find helpful.

      Bill
      Bill Hanigsberg

      Comment


      • #4
        RE: special characters

        Bill,

        using Ed's toolbar, I discovered the following:

        I can create the custom button for chr(241) [+ over -]
        and the toolbar editor recognizes 241 and puts the correct text in the toolbar

        but if I use chr(241) in the code, it displays an incorrect character. But if I use chr(177) it displays the correct character. I have no problem with using 177 instead of 241 in the toolbar script, but I fear it is an Alpha error that it is getting the wrong character for chr(241) and that if they "fix it" later then the code will fail.

        try this
        for i=1 to 257
        trace.writeln(i + " " + chr(i))
        next

        then note that the characters it is displaying/writing are not always the correct ascii characters.

        I figured out that the reason a field will not accept alt-241 in a field on my form was because I had some onkey code for "{esc}"

        I put the following code at the top of onkey and now it works
        if this.active()="location"
        end
        end if
        Cole Custom Programming - Terrell, Texas
        972 524 8714
        martin_w_cole@msn.com

        ____________________
        "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

        Comment


        • #5
          RE: special characters

          bump
          Cole Custom Programming - Terrell, Texas
          972 524 8714
          martin_w_cole@msn.com

          ____________________
          "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

          Comment


          • #6
            RE: special characters

            Martin,

            The character displayed for any particular chr() code is dependent on the font of the object. Go to Start, Programs, Accessories, System Tools, Character Map and you can then see the mappings of the various fonts. If you need to change fonts within an object, it may be necessary to use an RTF object.

            Regards,

            Ira
            Regards,

            Ira J. Perlow
            Computer Systems Design


            CSDA A5 Products
            New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
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            CSDA Screen Capture


            Comment


            • #7
              RE: special characters

              Thanks ever so much Ira - I would never have even thought of that!
              Cole Custom Programming - Terrell, Texas
              972 524 8714
              martin_w_cole@msn.com

              ____________________
              "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

              Comment


              • #8
                RE: special characters

                Martin,

                Is Ed's methodology working in the context of your application. Have you adapted it in any interesting ways?

                Thanks,
                Bill
                Bill Hanigsberg

                Comment


                • #9
                  RE: special characters

                  Good question - here is what I am doing, but I haven't finished yet.

                  I am going to get a complete list from the client of the "special characters" he is going to need - mostly stuff like degrees, +/-, and regular engineering/math stuff.

                  The I am going to create a table containing the characters (for displaying) and the chr(values).

                  Then, on all appropriate forms I'll give the user a constant F-key like F12 to pop a dialog showing the characters, letting them scroll and enter or doublelclick to select, get the chr(value) in a variable and use a variation of Ed's code to insert it.

                  What I hope to do is before they depart the field object(to press F12) is get the field-object name and cursor position in variables and put the code in the onkeycode for F12.

                  like they are in the field and have typed "360" - and if they press the F12 key, let them scroll to select the degree symbol, go back to the field and automatically insert it.

                  If I get that to work seamlessly, I'll send you a copy, but I have been too busy to work on it so far.

                  Unless I had a table for every possible chr(value) for every possible font, I'll have too be sure to ALWAYS use the same font in apprpriate fields.

                  But for now I am just letting them use, e.g., alt241.

                  Cole Custom Programming - Terrell, Texas
                  972 524 8714
                  martin_w_cole@msn.com

                  ____________________
                  "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

                  Comment


                  • #10
                    RE: special characters

                    Thanks for the interim report. It's an interesting problem. The minute you mentioned it I realized I would have to face it one day.

                    best wishes,
                    Bill
                    Bill Hanigsberg

                    Comment

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