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Quick positioning of the caret at the end of the text

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9 Aug 2002 84.7K   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 
Keep this solution around man, this is the only method i've found to scroll down the caret in a edit box in a win32 environment (without mfc)

---

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 

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