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Quick positioning of the caret at the end of the text

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9 Aug 2002 85.2K   16   11
Quickly position the caret at the end of edit control text...

Problem

I was using EditControl window to dump some logging/trace messages line by line and found out that a simple routine involving:

SendDlgItemMessage(hwndDlg,IDC_SOMEEDITCONTROL, 
    EM_REPLACESEL,0,(long)lpszTextBuffer);

works only if you don't reposition the caret in EditControl window (which inadvertantly happens when you scroll back and forth to check on previous messages...). So, if you by accident repositioned the caret, the next text dump will disrupt existing line and produce undesirable effect of garbled data...

A Solution

A simple workaraound may help -- the following "duo" does the trick:

SendDlgItemMessage(hwndDlg,IDC_SOMEEDITCONTROL, EM_SETSEL, 0, -1);
SendDlgItemMessage(hwndDlg,IDC_SOMEEDITCONTROL, EM_SETSEL, -1, -1);

This will position a runaway caret to the end of the text in EditControl..., so that the next call to:

SendDlgItemMessage(hwndDlg,IDC_SOMEEDITCONTROL, 
    EM_REPLACESEL,0,(long)lpszTextBuffer);

will append a new line to the bottom of the existing body of text... ;-)

License

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Written By
Web Developer
United States United States
Programming "Artist" since 1984

Comments and Discussions

 
GeneralCaret at the beginning Pin
Filomela28-Apr-04 3:37
Filomela28-Apr-04 3:37 
GeneralRe: Caret at the beginning Pin
toxcct4-Aug-05 23:46
toxcct4-Aug-05 23:46 
QuestionHow to highlight a particular line in edit box? Pin
gurumj17-Sep-03 3:46
gurumj17-Sep-03 3:46 
AnswerMFC Solution Pin
andyj11531-Oct-03 11:01
andyj11531-Oct-03 11:01 
AnswerSDK Solution Pin
andyj11531-Oct-03 11:10
andyj11531-Oct-03 11:10 
AnswerAuto scroll Pin
a.bietti8-Dec-04 5:34
a.bietti8-Dec-04 5:34 
GeneralRe: Auto scroll Pin
428819-Jul-07 5:33
428819-Jul-07 5:33 
GeneralAll Documented in MSDN Pin
NormDroid10-Aug-02 8:16
professionalNormDroid10-Aug-02 8:16 
GeneralRe: All Documented in MSDN Pin
bob169728-Sep-03 6:20
bob169728-Sep-03 6:20 
GeneralRe: All Documented in MSDN Pin
NormDroid10-Sep-03 7:52
professionalNormDroid10-Sep-03 7:52 
GeneralRe: All Documented in MSDN Pin
bob1697223-Jan-04 16:05
bob1697223-Jan-04 16:05 
I've only got 15 years experience in programming but I would be lost without MSDN or this site. I usually check MSDN first, then search engines, then my books. Finding this snippet saved me a bunch of time.

I'm not sure what your comment about the 22 books thingy was or what it has to do with my comment but your welcome to them. There's nothing better than having a question, typing it in, and getting 5 million-zillion links to helpful comments and tidbits like this one. And, by the way, some of your posts have helped me from time to time so thank you for posting them.

I promise I won't criticize you if I find stuff from your articles somewhere in the deep dark halls of MSDN or in a Petzold book. I'd rather find too many links to helpful pages than "No search results were found"

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