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You can use
GetWindowText() to copy the edit control string to a buffer
Set the character at offset 1 in the buffer to '\0'
Send the LB_ADDSTRING message to the listbox to add the string
I've left out error handling including making sure there's actually characters in
the edit control.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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Wow thanks for the fast reply. So i would use this function.
int GetWindowText(
HWND hWnd,
LPTSTR lpString,
int nMaxCount
);
I'm assuming hWnd would be Edit1, lpString would be LB_ADDSTRING, AND nMaxCount would be 0. But when I input that in I get errors.
[C++ Error] yadda.cpp(402): E2152 Default expression may not use local variables
[C++ Error] yadda.cpp(402): E2034 Cannot convert 'int' to 'char *'
[C++ Error] yadda.cpp(402): E2150 Type mismatch in default argument value
Any ideas what I'm doing wrong. Thanks for all the help and sorry for basically asking you to hold my hand and walk me through it.
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Your program is Win32 or MFC?
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I don't know Borland C++ builder so I suggested Win32 APIs.
GetWindowText() takes the handle of the edit control (HWND),
a pointer to a buffer to copy the text into, and the size of the buffer.
TCHAR buffer[80];<br />
GetWindowText(hwndEdit, buffer, sizeof(buffer)/sizeof(TCHAR));<br />
<br />
buffer[1] = 0;<br />
<br /> To add a string to a listbox, you can send it a LB_ADDSTRING message...
SendMessage(hwndListBox, LB_ADDSTRING, 0, (LPARAM)buffer);
That's the basics, with no error checking.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Okay thanks for that. here is what i've done
void __fastcall TForm1::Edit1Change(TObject *Sender)<br />
{<br />
TCHAR buffer[80];<br />
GetWindowText(hwndEdit1, buffer, sizeof(buffer)/sizeof(TCHAR));<br />
<br />
buffer[1] = 0;<br />
SendMessage(hwndListBox3, LB_ADDSTRING, 0, (LPARAM)buffer);<br />
<br />
}<br />
These are the errors i get
[C++ Error] yadda.cpp(403): E2451 Undefined symbol 'hwnd'
[C++ Error] yadda.cpp(403): E2121 Function call missing )
[C++ Error] yadda.cpp(407): E2121 Function call missing )
Here is my includes
#include <vcl.h>
#pragma hdrstop
#include <iostream>
#include <fstream.h>
#include "yadda.h"
#include <filectrl.hpp>
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <process.h>
And Hamid the app is win32.
Thanks for the help thus far. I answer questions on a video forum and now feel like one of the newbies I help on a daily basis. 
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hmmm I'm running out of help here, since I don't know Builder...
I don't see "hwnd" anywhere in your code so I can't imagine what's causing the error.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Okay. Thanks for the help so far. You've pointed me in the right direction.
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Hi all,
I am trying to extract messages from outlook express on a server and file them in a folder. - contact, subject and text
Does anyone know if this is possible or can direct me to a place where I can get help on this.
Many thanks in advance
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try using SimpleMapi for outlook express....
search this in codeproject
An article by PJ Naughter
http://www.naughter.com[^]
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what is the best way to resize a structure during run time. I have a struct that rights out a record to a file. Now I will have 2 scenarios that that requires that one of the fields in the middle of the struct be a different size. All the fields in the struct are char or char[]. can this be done with unions? I have code in place that does all the formating, so I don't want to have to rechange everything.
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A struct should always have the same size and never be resizable. If you have the need to store items of an unkown size, store the pointer/offset to the data in the struct and write the data where the struct can find it.
For example:
struct MyStruct
{
DWORD szText;
char szSoreText[ 28 ];
struct UnknownStruct
{
...
}
} foo;
When writing this to a file you would set the szText to sizeof( MyStruct ). This indicates that the string is stored right after the struct. To get the text you would do something like:
char* szStructsText = (char*)( &foo + foo.szText );
Waldermort
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Resizable structure is not possible.
If u r using C++ then u can derive new structure from existing one like class..
ThankXXXX..
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Hi,
I know there are a few good articles regarding driver development here, but unless I missed it, I couldn't find something about sending an asynchronous IOCTL from user space to kernel.
Any help or link would be great.
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When you open the device, you need to specify that you will be doing overlapped I/O. Then, when calling DeviceIoControl, use the overlapped parameter.
Judy
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Hi there,
 Just inherited some VC++ code from a colleague, including .cpp,.CPP,.h,.H, i know nothing about Visual C++, but I was told the program was executable.......my silly questions are:
1) .cpp and .CPP the same ?
2) How to build them into one project to make it executable using Visual Studio 2005? 
I couldn't find the straightforward answer from the Internet.
Any hint? Many thanks.
Regards,
Aloha
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Aloha2007 wrote: Just inherited some VC++ code from a colleague, including .cpp,.CPP,.h,.H,
What version of VS was s/he using?
Aloha2007 wrote: 1) .cpp and .CPP the same?
Yes.
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hi David,
Many thanks for reply.
He use Visual Studio 2003 or even earlier version.
The built-up project was executable in 2003 version, but when run it on 2005 version, it says: the project is out of date.
Then I asked for the original codes, but don't know how to build it on Visual Studio 2005.
Regards,
Aloha
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You can make a project and insert your codes on that project.(Ctrl+Shift+N) after press these buttons you see a window that you can select project type select MFC then MFC Application.
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Does MFC provide any method which will give me a list of handles or pointers to ALL open documents or MDI child windows in an MFC MDI Doc/View application?
Thanks
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The CDocTemplate objects keep track of open documents. By iterating through the
registered templates, you can get the open docs associated with each template.
For enumerating views, you can do it the windows way(s) like EnumChildWindows()
or you could also use CDocument::GetFirstViewPosition()/CDocument::GetNextView()
to get the views for each document obtained as described above.
For an example of enumerating documents, you can check out the source code.
CWinApp::CloseAllDocuments() is an example.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Great! Using CDocTemplate::GetFirstDocPosition and CDocTemplate::GetNextDoc, along with CDocument::GetFirstViewPosition and CDocument::GetNextView, I was able to get everything I needed.
Thanks very much!
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Hi
when i compile this:
#include <windows.h>
#include <mapiwin.h>
typedef struct _INST
{
UINT cRef;
LPMALLOC lpmalloc;
} INST, *PINST;
int main()
{
PINST pinst;
pinst = (PINST) PvGetInstanceGlobals();
return 0;
}
i get
Linking...
testmapiWin.obj : error LNK2001: unresolved external symbol _pinstX
Debug/testmapiWin.exe : fatal error LNK1120: 1 unresolved externals
pinstX is defined in MAPIwin.h
extern LPVOID pinstX;
dose any one have a idea why this won't compile...
Many Thanks
Calvin
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Try adding this to your source code, in some *.cpp file
#pragma comment(lib,"mapi32.lib")
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thanks
I tried that and stil got the same error
is this the same as adding mapi32.lib to the linker "additional dependancies" as i all ready have it added there.
Many Thanks
Calvin
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Ok...
Did some reading and found out what was going on..
The key is that "pinstX" is defined in "MAPIWIN.H" as "extern LPVOID pinstX;" the key is the "extern" which is apaerntly a external global so all I had to do was add..
LPVOID pinstX;
to the main file (or main header) and now it compiles..
so it now reads
#include <windows.h>
#include <mapiwin.h>
LPVOID pinstX;
//typedef LPVOID pinstX;
/* Per-instance data. */
typedef struct _INST
{
UINT cRef;
LPMALLOC lpmalloc;
} INST, *PINST;
int main()
{
PINST pinst;
pinst = (PINST) PvGetInstanceGlobals();
return 0;
}
Many Thanks
Calvin
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