MMCC PL/B EditText

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v1.10

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ANSI Standard PL/B Language
EditText Object Notes

NOTE TO OUR READERS This web resource is written for our own use. But we feel strongly that the PL/B language should be shared with the software community. So feel free to use this at will! BUT PLEASE... if you find errors or omissions or have a better way to do something. TELL US! Dialog helps us all. Send e-mail to: support@mmcctech.com

Topics

Cursor Positioning
"blocked" text

See also

Strings
INDEX

EditText Object
The EditText object is one of the most fundamental objects for the Visual PL/B programmer. It's so common that it seems easy. These notes are just to remind us of some things that we seldom use. I won't even write about the basics for now, just the things I need to remember.

CURSOR POSITION:
Once you get the data INTO an EditText you may want to position the cursor to an insertion point within the string. The instruction is:
```
        SETITEM  {edittext},1,nn         .Where nn is the position
```
To force the cursor to the end of the string you can say SETITEM x,1,999.

This may require you to use or not use the SELECTALL property. I can't remember right now.
FINDING BLOCKED TEXT
The user may block some text in the middle of the edit text and you want to know where it is.

For example, you might provide a float menu based on a right click. In that menu you could have the usual cut and copy but you might also have UPPER CASE. When they click that you want to get the blocked text and convert it all to upper case.

To find the starting and ending positions of the blocked text, do this:
```
        GETITEM  {edittext},1,nn         .nn will get the STARTing byte
        GETITEM  {edittext},2,nn         .nn will get the ENDing byte
```
You can also retrieve just the blocked text by using code "1", but having the receiving field be a string:
```
        GETITEM  {edittext},1,string     .string gets blocked text  
```

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v1.10

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Started 06/20/2003