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TMemo Limit

Posted on 1997-03-16
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Last Modified: 2010-04-04
I want to limit a TMemo window to 100 lines.
If a 101st line is added, delete the 1st Line
so that always only the last 100 Lines are there.
Please e-mail me with response
Lechtor@kalamazoo.net
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Question by:lechtor
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Accepted Solution

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mheacock earned 50 total points
ID: 1334767
Is the text coming from user input or from a file?

Use a combination of the following TMemo methods and
properties to achieve what you want:

    create a variable that will keep track of the number of lines.
    use the OnKeyPress event to capture the use of the ENTER key, increment the NumLines variable each time.
    check NumLines after each ENTER keypress, if it is >100,
use the DELETE method to delete the first line in the TMemo, decrement the NumLines by one.

If you are reading from a file, it is trivial to keep track of the number of lines entered into the TMemo yourself.
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