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In my humble opinion, one of the most important differences is that you may mix native (ISO/ANSI) C++ code with C++/CLI code in the same source file. No other .NET languages can do that.
Best,
Jun
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C++/CLI is great for people who already know how to program in C++. And, if you have a lot of legacy C++ codes lying around, you can easily use them in C++/CLI. As for me, i use C++/CLI to build mixed mode programs, whereby part of the program (the GUI etc) is built using managed C++, and performance critical parts are programmed using pure C++ (compiled as native code). That amount of flexibility is really powerful.
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Don't you think it should compile?
<br />
int val = 44;<br />
int* a = &val;<br />
int* b = &a;
and here comes error (occurs in the third line of the above code):
error C2440: 'initializing' : cannot convert from 'int **__w64 ' to 'int *'
Unless I use "int **__w64" type how can it possibly need a convertion and what is exactly "int **__w64"?
Thanks in advance
watherby 33
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watherby33 wrote: Don't you think it should compile?
No, it should not compile. You are using different levels of indirection.
int val = 44;
int *a = &val;
int **b = &a;
int ***c = &b;
You may be right
I may be crazy
-- Billy Joel --
Within you lies the power for good, use it!!!
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Demian Panello wrote: 1 - Is C++/CLI available in NET framework 1.1?, or is it just called Managed C++?.
You can access the .NET framework using Managed C++
Demian Panello wrote: 2- If it's not, could I install the NET framework 2.0 to be able to use it in my current Visual Studio enviroment??
No you can't use .NET 2.0+ framework in VC++ 2003. You need 2005 for that.
You can learn C++/CLI in 2003, no problem. BUT, the managed extensions used in 2003 were rolled
into the the C++ language proper in 2005 so the syntax of most managed extensions changed.
Here's the document describing the changes:
Managed Extensions for C++ Syntax Upgrade Checklist[^]
If you have 2005 then it's worthwile to install it and start there. Otherwise, all the code
you write in 2003 is eventually going to have to be ported to the new syntax.
Mark
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Ok, thank you Mark.
I'm trying to download the Visual C++ 2005 Express edition from Microsoft, but I can't.
Do you know some alternate address??
(forget it, I found an alternate address)
-- modified at 17:13 Sunday 29th October, 2006
Demian.
"I have always wished that my computer would be as easy to use as my
telephone. My wish has come true. I no longer know how to use my telephone."
-Bjarne Stroustrup, computer science professor, designer of C++
programming language (1950- )
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Demian Panello wrote: Is C++/CLI available in NET framework 1.1?, or is it just called Managed C++?.
Managed C++ uses a different syntax to C++/CLI.
Demian Panello wrote: I don't want to install the new Visual Studio 2005 enviroment but I want to learn C++/CLI.
You can just install the compile and use the command line, if you want.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Hi,
I have a SDI MFC application in CFormView.
Is there any way I can automatically activate the Edit -Copy/Paste/Undo that is added by default to the main menu without adding any additional coding?
Thanks.
Fortitudine Vincimus!
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Tara14 wrote: without adding any additional coding?
No, the only way to activate those menu items is to add code that handles them
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Hi all,
this is the code i am using to open the address book (using MAPI)
USES_CONVERSION;
LPADRLIST lpadrlist = NULL;
LPTSTR rglpszDestTitles[1];
ULONG rgulDestComps[1];
ULONG ulUIParam = 0;
rglpszDestTitles[0] = (LPWSTR) T2A(_T("To"));
rgulDestComps[0] = MAPI_TO;
ADRPARM adrparm;
adrparm.cbABContEntryID = 0;
adrparm.lpABContEntryID = NULL;
adrparm.ulFlags = (DIALOG_MODAL | AB_SELECTONLY | AB_RESOLVE);
adrparm.lpReserved = NULL;
adrparm.ulHelpContext = 0;
adrparm.lpszHelpFileName = NULL;
adrparm.lpfnABSDI = NULL;
adrparm.lpfnDismiss = NULL;
adrparm.lpvDismissContext = NULL;
adrparm.lpszCaption = (LPWSTR) T2A(_T("Select Outlook contacts"));
adrparm.lpszNewEntryTitle = (LPWSTR) T2A(_T("For this dialog"));
adrparm.lpszDestWellsTitle = (LPWSTR) T2A(_T("Selected Recipients:"));
adrparm.cDestFields = 1;
adrparm.nDestFieldFocus = 0;
adrparm.lppszDestTitles = rglpszDestTitles;
adrparm.lpulDestComps = rgulDestComps;
adrparm.lpContRestriction = NULL;
adrparm.lpHierRestriction = NULL;
HRESULT hr = (pAdrBook->Address( &ulUIParam, &adrparm, &lpadrlist));
the address book opens ok, but sometimes, it failed and the hresult is 0x8007000E....
haven't seen any documentation on this error, or what it means....
can any1 help?
thanks
Yaron
Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp
don't forget to vote 
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YaronNir wrote: it failed and the hresult is 0x8007000E
If you use the "Error Lookup" tool that comes with VS (Usually listed under the 'Tools' menu) you can find out what the error code means. For 0x8007000E it returns "Not enough storage is available to complete this operation."
You may be right
I may be crazy
-- Billy Joel --
Within you lies the power for good, use it!!!
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Hello all. I have posted what i have done so far 
But that is not what i want it to do. i am a newbie to C++ so it would be great if you help me 
What i want to do is to add records to the end of file. that is the records in the file must be like :
David,kurek,Omalley park,566645
Sandra,pegan,John st,5666898
:
:
and so on. the problem is that in this program it does not add the new record to the next line. when i enter the new record it places on the previouse record in the file so u always have one Record being saved on the file 
and the next problem is that i want it to receive spaces as well but i cant go it with Get and cin :?
and i hope i can write the rest by knowing what to use from this part :-> cant promise myself
Please dont write something too complex that i dont underestand cause in that case it would be same as not knowing my answer ... i am still in the beginning of course 
Thanx and i am waiting
#include<iostream.h>
#include<fstream.h>
#include<conio.h>
#include<stdio.h>
#include<ctype.h>
#include<string.h>
#include<stdlib.h>
#include <io.h>
#include<iomanip.h>
#include<cstdlib.h>
char menu_select();
class stInfo{
public:
char name[80];
char family[80];
char address[80];
char stID[40];
};
// Functions
class functions{
public:
// list of functions
void add_rec();
};
void functions::add_rec(){
stInfo student;
//char *p = student.name;
char ch;
ifstream out_stream("f:rec.dat",ios::out| ios::binary);
out_stream.seekg (0, ios::end);
if(!out_stream) cout<<"cannot open file";
do{
out_stream.get(ch);
if (ch=='$')
{
cout<< "name: ";
cin>>student.name;
cout<<"\n";
cout<< "Family name: ";
cin>>student.family;
cout<<"\n";
cout<< "Address: ";
cin>>student.address,80;
cout<<"\n";
cout<< "student ID: ";
cin>>student.stID;
cout<<"\n";
//out_stream.seekg(eof);
ofstream out_stream("f:rec.dat");
out_stream<
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Some problems I see are:
You're reading from and writing to rec.dat at the same time.
You have more than one variable called out_stream
Each time you write to the file inside the loop, it's replacing the contents of the file with the one record.
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Dear all
Because of one unknown exception my multi threaded program closes sometimes.
I should find the reason of error.
I use the Dr watson capability of windows 2000 for this purpose.
But following instruments will make me more powerfull to find the reason of error.
1. How can I set symbolic name to my threads in Visual C++.
2. How can I set symbolic name to methods and functions in Visual C++.
3. How DbgHelp.dll help me for this purpose.
Regards
Mahdi
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I want to know if a user clicked in an edit box. And I want to know which edit box was clicked. I thought a handler for WM_LBUTTONDOWN might work. Unfortunately, I haven't gotten very far. Here is the direction I am headed. Is there a way to determine which edit box was clicked? Is that info in the message? Does point tell me anything about it? Thanks.
void CExoSliderDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
if(nFlags == MK_LBUTTON)
{
if IDC_EDIT1 was clicked...do something
if IDC_EDIT2 was clicked...do something
if IDC_EDIT3 was clicked...do something
}
CDialog::OnLButtonDown(nFlags, point);
}
-- modified at 1:26 Sunday 29th October, 2006
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Your dialog will not get the WM_LBUTTONDOWN message when a user clicks on an edit control on the dialog. But what you can do is remove the WS_EX_NOPARENTNOTIFY style from the edit controls and then they will send a WM_PARENTNOTIFY message to the dialog when they are clicked on. You can pass the point provided with the WM_PARENTNOTIFY message to the ChildWindowFromPoint() function to find out which control was clicked on.
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How does one remove WS_EX_NOPARENTNOTIFY from an edit control? Is that the same as choosing Notify in the properties?
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What are you going to do when the edit control is clicked on?
Depending on what you're doing, it may be easier to just responde to the EN_SETFOCUS notification
for the edit control.
ON_EN_SETFOCUS( IDC_EDIT1, OnEdit1SetFocus )
...
void OnEdit1SetFocus()
{
Edit control IDC_EDIT1 received focus...do something
}
Just a thought....maybe not specific enough for your needs.
Mark
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I have a quick question. What does "Owner Drawn" mean? I see it all over the place but I have no idea what it means. Does it mean that the graphics are drawn by you?
Any help would be greatly appreciated.
Thanks,
BP
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BlitzPackage wrote: Does it mean that the graphics are drawn by you?
Yes, by handling the erase background and paint events.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Thanks. I always wondered what that meant.
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Christian Graus wrote: by handling the erase background
All the win32 controls I can think of, only provides a hook to WM_PAINT. Are you mistaking owner draw for subclassing? 
--
Now with chucklelin
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