How would I append more text to an edit box win32 control?
Author
Hello,
I''ve got an edit box, and it''s got a few lines of text in it already. But I just want to add more text to the end of it.
Is there a way to just append new text to it easily? or do I have to get the text that''s in it, add the new strings together and then put it back in the box?
If I have to do it he second way could someone possibly give an example of how they might do it with STL? cause this is really the only string stuff I have and don''t want to go including that just to add 2 strings once...
Thanks.
- Newb Programmer: Geek++
send a message to the edit control like this:
SendMessage(hEditWnd, EM_SETSEL, 0, MAKELONG(0xffff, 0xffff) );
that should place the caret at the end of any text currently in the box.
then:
char c[1024];
SendMessage(hEditWnd, EM_REPLACESEL,NULL,(LPARAM)c);
I believe this will work, try it out. If not then I'll try to dig up some old code where I handled this issue.
EDIT: Also, I think you should also make sure that whatever character array you are using is null-terminated too.
[edited by - nervo on June 1, 2004 8:30:59 PM]
SendMessage(hEditWnd, EM_SETSEL, 0, MAKELONG(0xffff, 0xffff) );
that should place the caret at the end of any text currently in the box.
then:
char c[1024];
SendMessage(hEditWnd, EM_REPLACESEL,NULL,(LPARAM)c);
I believe this will work, try it out. If not then I'll try to dig up some old code where I handled this issue.
EDIT: Also, I think you should also make sure that whatever character array you are using is null-terminated too.
[edited by - nervo on June 1, 2004 8:30:59 PM]
Author
alrighty, I have this:
SetDlgItemText(hWnd, CONTROL_EDIT, "line1\r\nline2");
SendMessage(hEdit, EM_SETSEL, 0, MAKELONG(0xffff, 0xffff));
SendMessage(hEdit, EM_REPLACESEL, 0x00, (LPARAM)"\r\nline3");
so I should get.
---------------
Line1
Line2
Line3
---------------
But I end up with
---------------
Line3
---------------
So it seems it''s still just replacing all the text.
- Newb Programmer: Geek++
SetDlgItemText(hWnd, CONTROL_EDIT, "line1\r\nline2");
SendMessage(hEdit, EM_SETSEL, 0, MAKELONG(0xffff, 0xffff));
SendMessage(hEdit, EM_REPLACESEL, 0x00, (LPARAM)"\r\nline3");
so I should get.
---------------
Line1
Line2
Line3
---------------
But I end up with
---------------
Line3
---------------
So it seems it''s still just replacing all the text.
- Newb Programmer: Geek++
quote:Original post by GeekPlusPlus
alrighty, I have this:
SetDlgItemText(hWnd, CONTROL_EDIT, "line1\r\nline2");
SendMessage(hEdit, EM_SETSEL, 0, MAKELONG(0xffff, 0xffff));
SendMessage(hEdit, EM_REPLACESEL, 0x00, (LPARAM)"\r\nline3");
so I should get.
---------------
Line1
Line2
Line3
---------------
But I end up with
---------------
Line3
---------------
So it seems it's still just replacing all the text.
- Newb Programmer: Geek++
OK, I just looked at my code..try this:
SendMessage(hEdit, EM_SETSEL,0xffff, 0xffff);
EDIT: My code went like this: (replace as necessary):
totalbufsize += GetWindowTextLength(hwnd_edit); SendMessage(hwnd_edit,EM_SETSEL,(WPARAM)totalbufsize,(LPARAM)totalbufsize); SendMessage(hwnd_edit,EM_REPLACESEL,0,(LPARAM)(clientoutput.c_str()));[edited by - nervo on June 1, 2004 8:44:12 PM]
Author
if I use
SendMessage(hConsole, EM_SETSEL, 20, 20);
it works, because it selects form 20 to 20
, but if the text is ever past 20 it wouldn''t.
Seems kinda hacky just to put a huge number in there and assume it''ll never go past that =/
- Newb Programmer: Geek++
SendMessage(hConsole, EM_SETSEL, 20, 20);
it works, because it selects form 20 to 20
, but if the text is ever past 20 it wouldn''t.
Seems kinda hacky just to put a huge number in there and assume it''ll never go past that =/
- Newb Programmer: Geek++
Author
Yeah that works.
0xffff is just a neater looking way of doing a huge number.
Works for me. Thanks =)
Edit:
Woops shoudla read the rest. gettext length, that's much, much nicer.
Thanks a lot =)
- Newb Programmer: Geek++
[edited by - GeekPlusPlus on June 1, 2004 8:46:26 PM]
0xffff is just a neater looking way of doing a huge number.
Works for me. Thanks =)
Edit:
Woops shoudla read the rest. gettext length, that's much, much nicer.
Thanks a lot =)
- Newb Programmer: Geek++
[edited by - GeekPlusPlus on June 1, 2004 8:46:26 PM]
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