Managed C++/CLI

NEED HELP ASAP!!!!!!! I ALREADY DID THE PROGRAM IN MAIN I JUST NEED HELP TO SEPERATE IN .CPP, .H AND MAIN

18-Apr-14 8:51

I have looked, and I have given you a suggestion; it is up to you to implement it. You then need to build and test until it runs successfully.

You also need to provide specific details of the errors you receive if you want further help.

Akandel17-Apr-14 17:28

Akandel

17-Apr-14 17:28

THE QUESTION IS AS FOLLOWS:

XML

Create a template class called Array that implements an array and works with any type (int, double, etc.).  The constructor should take a size for the array and use new to allocate memory (don't forget to delete in the destructor).  Overload operator[] to access the elements of the array.  If an attempt is made to access an element outside the array bounds (either above OR below), throw an exception.  In the main program, first create an Array<int> object, add a few values, and demonstrate that operator[] throws an exception if an attempt is made to access an out-of-bounds elements.  Catch the exception and print an appropriate message.  Then do the same thing with an Array<std::string>.

Hint: you will need both of these overloads:

T& operator[](int i)

const T& operator[](int i) const

I DID THE PROGRAM IN MAIN AS FOLLOWS AND IT DOES WELL IN THE MAIN BUT ITS GIVING ME HARD TIME DIVIDING IT INTO DIFFERENT FILES.

#include "stdafx.h"
#include <iostream>
using namespace std;
#include <exception>
#include "Array.h"

template <typename T>
class Array
{
int size; T*array;
public:
Array(int s)
{
size=s;
array=new T [size];
}
~Array()
{
delete [] array;
}
const T &operator[](int i) const
{
if(i < 0)
throw exception("Index out of bounds LOWER");
else if(i>=size)
throw exception("Index out of Bounds OVER");
else
return array[i];
}

};

int _tmain(int argc, _TCHAR* argv[])
{
Array <int> num(12);
try
{
int i=num[-1];
}
catch (std :: exception & ex)
{
cout<<ex.what()<< endl;
}
Array <string> num1(12);
try
{
string j=num1[14];
}
catch (std :: exception & ex)
{
cout<<ex.what()<< endl;
}
cin.get();
cin.get();
return 0;
}

THEN I DIVIDED THE PROGRAM INTO DIFFERENT FILES AS FOLLOWS:
IN ARRAY.H

#pragma once

template <typename T>
class Array
{
public:
    Array(int s);
    ~Array();
    const T &operator[](int i)const;
private:
        int size; T*array;
};

IN ARRAY.CPP

#include "stdafx.h"
#include <iostream>
using namespace std;
#include <exception>
#include "Array.h"

template <typename T>
Array<T>::Array(int s)
{
    size=s;
    array=new T [size];
}
template <typename T>
Array<T>::~Array()
{
    delete [] array;
}
template <typename T>
const T & Array<T>::operator[](int i) const
{
    if(i < 0)
        throw exception("Index out of bounds LOWER");
    else if(i>=size)
        throw exception("Index out of Bounds OVER");
    else
        return array[i];
}

IN MAIN:::

XML

#include "stdafx.h"
#include <iostream>
using namespace std;
#include <exception>
#include "Array.h"


int _tmain(int argc, _TCHAR* argv[])
{
    Array <int> num(12);
    try
    {
        int i=num[-1];
    }
    catch (std :: exception & ex)
    {
        cout<<ex.what()<< endl;
    }
    Array <string> num1(12);
    try
    {
        string j=num1[14];
    }
    catch (std :: exception & ex)
    {
        cout<<ex.what()<< endl;
    }
    cin.get();
    cin.get();
    return 0;
}

Building with Warning level 4

John Schroedl17-Apr-14 7:31

Re: Building with Warning level 4

17-Apr-14 7:31

Hi, I'm trying to build my C++/CLI project with /W4 today and there's a warning I can't seem to avoid and hope someone here can help.

My project has a reference to Microsoft.mshtml for the web browser interfaces. At the first usage in code, I get a slew of warning similar to this:

C++

1>htmlView.cpp(244): warning C4564: method 'open' of interface 'mshtml::DispHTMLDocument' defines unsupported default parameter 'url'
1>          This diagnostic occurred while importing type 'mshtml::DispHTMLDocument ' from assembly 'Microsoft.mshtml, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
1>          This diagnostic occurred while importing type 'mshtml::HTMLDocumentClass ' from assembly 'Microsoft.mshtml, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

I understand why it's warning (there are optional parameters in the managed interface but the generated C++ interface doesn't have the default values). That's fine.. I'd like to suppress the warning since I can't really do anything about the generated code.

I tried the following in various of places in the code including wrapping the whole file with it. Alas, it doesn't prevent the warning.

C++

#pragma warning( push )
#pragma warning( suppress : 4564 ) // /W4 will warn about optional parameters in mshtml interface

. . . CLI Code . . .

#pragma warning(pop)

If possible, I'd prefer to suppress it in the source instead of a compile-time switch so I thought I'd ask here... any suggestions?

John

John Schroedl18-Apr-14 6:22

access functions in a DLL created in C # for borland c + + builder

18-Apr-14 6:22

I gave up and am disabling this warning for the affected file in the vcxproj. Oh well, would have been nice to suppress in source.

John

Willian Mathias9-Apr-14 8:03

Willian Mathias

9-Apr-14 8:03

Good Afternoon!
I'm trying to use the functions in the DLL created in C #, I need to read the functions in borland c + + builder, anyone have any suggestions?

Re: access functions in a DLL created in C # for borland c + + builder

Richard Andrew x6417-Apr-14 8:59

Richard Andrew x64

17-Apr-14 8:59

Compile the C# object with the "Make COM Visible" checkbox checked, and then see this link:

COM Callable Wrapper[^]

The difficult we do right away...
...the impossible takes slightly longer.

retrieve words in a HTML page

neterfari1-Apr-14 23:42

1-Apr-14 23:42

Hello ,
I have a problem.
I have a HTML page like this:

HTML

<!DOCTYPE html
  PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
   <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
      <link rel="stylesheet" href="/repertoire1/css/defaulthtml/reset.css" type="text/css" />
      <link xmlns="" rel="stylesheet" href="/repertoire1/css/defaulthtml/default_theme.css"
            type="text/css"></link><script type="text/javascript">

	<title> Test HTML</title>
  </head>
<body>
         <div id="alert"></div>
         <div class="data">
            <div class="line-item">word1 word2 word3 word 4 word5  <br /> word7 word8 word9
             </div>
         </div>
<div class="footer"><a href="#" id="2" class="button enabled">Arreter</a><a href="#" id="3" class="button enabled">Annuler</a></div>
<script type="text/javascript" src="/repertoire1/test/.js"></script>
<script type="text/javascript">
            $(document).ready(function () {
                init();
            });
        </script></body>
</html>

I record this page in xml or txt file. I walk through the xml file and I have only recovered one by one word while cleaning the html tag like this one:

word1
word2
word3 ...

The question is : how to retrieve the words one by one, please
Thank you in advance.

Richard MacCutchan2-Apr-14 0:22

2-Apr-14 0:22

This is the Managed C++ forum; please post your question in the proper place.

neterfari2-Apr-14 2:45

2-Apr-14 2:45

I think I'm good endroit.parce I have to do all this in c + + / cli.
I get the source code of the site with c + + and I have records in a xml file. I route the file and now I have to recover word and it will be with c + + / cli.

Richard MacCutchan2-Apr-14 3:02

2-Apr-14 3:02

Sorry, but it is not clear what your problem is. If you are looking for a simple XML parser then try http://msdn.microsoft.com/en-us/magazine/cc163436.aspx[^].

neterfari2-Apr-14 3:26

Multimedia Timer Problem in MFC VS2010

2-Apr-14 3:26

Thank you

lephanhung30-Mar-14 18:44

lephanhung

30-Mar-14 18:44

I want to use a mm_timer for my application by 60Hz or less Big Grin | :-D

. This is my testing code.

- In "testmmtimerDlg.h" header file:

#include "mmsystem.h"
#pragma once
#pragma comment(lib, "winmm.lib")

public:
	double m_dcount;
	static void CALLBACK TimeProc(UINT wTimerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);

	void MMTimerHandler(UINT nIDEvent);
	void StopTimer();
		
	MMRESULT m_Timer;	
	DWORD resolution;</pre>

- In "testmmtimerDlg.cpp" file:

<pre>void CtestmmtimerDlg::OnBnClickedTest()
{
	// TODO: Add your control notification handler code here
	m_dcount = 0;
	// Set resolution to the minimum supported by the system
	
	TIMECAPS tc;
	timeGetDevCaps(&tc, sizeof(TIMECAPS));
	resolution = min(max(tc.wPeriodMin, 0), tc.wPeriodMax);
	timeBeginPeriod(resolution);
	
	// create the timer
	m_Timer = timeSetEvent(10,resolution,TimeProc,(DWORD)this,TIME_PERIODIC);
}

void CALLBACK TimeProc(UINT wTimerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2)
{
	// This is used only to call MMTimerHandler

	// Typically, this function is static member of CTimersDlg

	CtestmmtimerDlg* obj = (CtestmmtimerDlg*) dwUser;
	obj->MMTimerHandler(wTimerID);
}

void CtestmmtimerDlg::StopTimer()
{
    // destroy the timer
    timeKillEvent(m_Timer);

    // reset the timer
    timeEndPeriod (resolution);
}

==>> But when I try to debug, I have 2 problem:
- First, "

testmmtimerDlg.obj : error LNK2019: unresolved external symbol "public: static void __stdcall CtestmmtimerDlg::TimeProc(unsigned int,unsigned int,unsigned long,unsigned long,unsigned long)" (?TimeProc@CtestmmtimerDlg@@SGXIIKKK@Z) referenced in function "public: void __thiscall CtestmmtimerDlg::OnBnClickedTest(void)" (?OnBnClickedTest@CtestmmtimerDlg@@QAEXXZ)
1>C:\Users\HungReo\Documents\Visual Studio 2010\Projects\testmmtimer\Debug\testmmtimer.exe : fatal error LNK1120: 1 unresolved externals

"

- Second, in header file, I try to change:

void (CALLBACK *TimeProc)(UINT wTimerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);

==>>>> OxC0000005: Access Violoation

- May someone help me to solve these problem???

modified 31-Mar-14 0:54am.

Re: Multimedia Timer Problem in MFC VS2010

Richard MacCutchan30-Mar-14 21:52

Re: Multimedia Timer Problem in MFC VS2010

30-Mar-14 21:52

C++

void (CALLBACK *TimeProc)(UINT wTimerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);

You are declaring TimeProc as a pointer to a function which is totally incorrect.

It should be like:

C++

// in the class definition in the header file:
void CALLBACK TimeProc(UINT wTimerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);

// and the declaration in the .cpp file:
void CALLBACK CtestmmtimerDlg::TimeProc(UINT wTimerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2)
{
    // implementation code here
}

lephanhung31-Mar-14 2:11

lephanhung

31-Mar-14 2:11

Thank you very much for your help! But when I try to follow your code, the error will be:

error C3867: 'CtestmmtimerDlg::TimeProc': function call missing argument list; use '&CtestmmtimerDlg::TimeProc' to create a pointer to member

Re: Multimedia Timer Problem in MFC VS2010

lephanhung31-Mar-14 19:24

lephanhung

31-Mar-14 19:24

I finished to run it ^^. Just move the CALLBACK function before click button and don't need to declare CALLBACK in header file. Thank you so much for your help ^^

Compiler Bug in C++/CLI vs Native C++

John Schroedl28-Mar-14 1:51

Run exe resource from memory.

28-Mar-14 1:51

FYI:

I entered this Connect bug found by a coworker. If you're a C++/CLI dev you may want to upvote it.

The /clr compiler issues an error whereas the C++ compiler (and clang/llvm on Mac) accept the template code. It's a template using std::is_base_of and isn't too crazy. There's no managed code involved at all in fact (ie. no ref classes).

http://connect.microsoft.com/VisualStudio/feedback/details/841299/unexpected-undefined-class-error-using-std-is-base-of-with-c-cli-code[^]

John

Member 1055963526-Mar-14 1:23

Member 10559635

26-Mar-14 1:23

Hi i have a stub that extract a resource. I want to run this resource directly from memory without write a file.

is it possible?

Re: Run exe resource from memory.

Richard Andrew x6426-Mar-14 5:41

Richard Andrew x64

26-Mar-14 5:41

That depends if the resource is an exe or a dll. If it's an exe, there is no way, but if it's a dll, then check out this link:
Loading a Dll From Memory[^]

The difficult we do right away...
...the impossible takes slightly longer.

cursor problem

neterfari26-Mar-14 1:10

26-Mar-14 1:10

Hello ,
I have a problem, I use LoadCursor () , but at runtime it shows me two error messages.
Here is the code:
term.h

C++

void LoadCursor(double latitude,double longitude);

term.cpp

C++

void Term::LoadCursor(double longitude,double latitude)
{
	CursorLongitudeCurrent=longitude;
	CursorLatitudeCurrent=latitude;
}

nem.h

C++

double ReadLatitudeValue(void);
string ReadLongitude(void);

FormD.h

C++

private: System::Void TMR_RS232Read_Tick(System::Object^  sender, System::EventArgs^  e) {
      ptr_Term> LoadCursor(ptr_nem->ReadLatitudeValue(),ptr_nem->ReadLongitudeValue());
}

AND errors:
first:
error LNK2019: unresolved external symbol "public: void __thiscall term::LoadCursorW(double,double)" (?LoadCursorW@term@@$$FQAEXNN@Z) referenced in the function "private: void __clrcall FormD.cpp::Form_D::TMR_RS232Read_Tick(class System::Object ^,class System::EventArgs ^)" (?TMR_RS232Read_Tick@FormD@FormD.cpp@@$$FA$AAMXP$AAVObject@System@@P$AAVEventArgs@4@@Z)

Second:
error LNK2028: unresolved token (0A0004AF) "public: void __thiscall term::LoadCursorW(double,double)" (?LoadCursorW@term@@$$FQAEXNN@Z) referenced in the function "private: void __clrcall FormD.cpp::FormD::TMR_RS232Read_Tick(class System::Object ^,class System::EventArgs ^)" (?TMR_RS232Read_Tick@FormD@FormD.cpp@@$$FA$AAMXP$AAVObject@System@@P$AAVEventArgs@4@@Z)

if you have an idea
Thank you

modified 26-Mar-14 7:24am.

Richard MacCutchan26-Mar-14 1:38

26-Mar-14 1:38

Your function is defined as LoadCursor, but somewhere in your code you are trying to call LoadCursorW. This is probably due to the fact that LoadCursor is defined in Winuser.h as described in http://msdn.microsoft.com/en-us/library/windows/desktop/ms648391(v=vs.85).aspx[^]. Try changing your function name to something else, or use a namespace to avoid conflicts.

neterfari26-Mar-14 3:17

26-Mar-14 3:17

thank you very much Richard Thumbs Up | :thumbsup:

neterfari26-Mar-14 3:19

26-Mar-14 3:19

I changed the name of the function and I have no error

but my cursor does not appear you have an idea please

modified 26-Mar-14 9:45am.

John Schroedl26-Mar-14 5:06

26-Mar-14 5:06

LoadCursor just loads the resource, it doesn't change the system cursor to that shape.

We'd need to see your code where you try to use the cursor.
For example, do you use it:
* In response to a WM_SETCURSOR message?
* In a direct call to SetCursor()?
* Passed to RegisterClass?

John

Richard MacCutchan26-Mar-14 5:35