Managed C++/CLI

Re: Video Display hangs in Windows after unlocking - Repost ...

16-May-12 23:12

... of this question[^]. Please post in one forum only, particularly as you have not explained what this has to do with C++/CLI.

Programming is work, it isn't finger painting. Luc Pattyn

Faez Shingeri16-May-12 23:16

Faez Shingeri

16-May-12 23:16

My code is in C++.

Re: Video Display hangs in Windows after unlocking - Repost ...

John Schroedl17-May-12 3:28

John Schroedl

17-May-12 3:28

Sorry, there's just not enough to work with here. We cannot even formulate a guess without seeing some code. Are you able to repro the problem in a very small test application?

Re: Video Display hangs in Windows after unlocking

jschell17-May-12 11:26

jschell

17-May-12 11:26

Faez Shingeri wrote:
an anyone please help me fix the issue of video display hanging on Windows?

A "video display" is a piece of hardware. It doesn't "hang". Applications on the other hand do.

Given that you are using C++ and windows and linux, it is obvious that you must explain in greater detail exactly what your application does and exactly how it does user input.

Finding a pointer from a list of pointers

elelont226-Apr-12 20:21

elelont2

26-Apr-12 20:21

HI,
is it possible to find a pointer from a list of pointers?

I know i can do it with find_if and a predicate, but since pointers are just addresses it should probably be possible to search them as if they were integers, with "find" function.

Re: Finding a pointer from a list of pointers

Richard MacCutchan26-Apr-12 22:28

Re: Finding a pointer from a list of pointers

26-Apr-12 22:28

You are correct, you can test pointers for equality so a simple compare will do the job.

Binding 100,000 items to a list box can be just silly regardless of what pattern you are following. Jeremy Likness

linhlevan3-May-12 5:35

linhlevan

3-May-12 5:35

Hi !
You can browse from head to tail of list.

Dll Dependency issue

givinisha23-Apr-12 4:42

givinisha

23-Apr-12 4:42

<code><code><code></code></code>
We have developed our project with the following technologies Visual
C#, Visual C++ and C Language. When we tried to execute our project in
client machine, It works only if the system has Visual C++ installed.
Otherwise it throws an Unhandled exception.The Visual C++ program
which we have developed is dependent on 4 native DLL such as
mscorlib.dll, microsoft visual c.dll, system.dll and data.dll. Visual
C++ project does not load the above mentioned assemblies during run
time.

So we kindly request you to provide some inputs on this to proceed further.</code>

Pete O'Hanlon23-Apr-12 4:57

Pete O'Hanlon

23-Apr-12 4:57

Unless you have built your C++/C code using statically linked libraries, you will need to install the Visual C++ runtime. As you haven't stated which version of C++ you are developing with, I can't point you to the correct one. If you Google for Visual C++ runtime [version] then that should find the one you want (replace [version] with the particular Visual C++ you used).

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Albert Holguin23-Apr-12 11:53

Albert Holguin

23-Apr-12 11:53

If you don't know exactly what are all the dependencies that you need for your executable to run a client machine, use Dependency Walker[^] to help you determine what you're missing. Usually, MS will also provide an executable to package/distribute their distributable dll's.

givinisha27-Apr-12 2:58

givinisha

27-Apr-12 2:58

Hi thanks for your reply...

When the dependency walker has been installed the visual c++ is missing these dll.
MSVCM90D.DLL,MSVCR90D.DLL,IESHIMS.DLL,WER.DLL

Got error as
Error: The Side-by-Side configuration information for "c:\documents and settings\administrator\my documents\givi\learning materials\acadamic_project\openpowerlinkdemoappv1.8(final)\openpowerlinkdemoappv1.8(final)\openpowerlinkdemoappv1.8\release\OPENPOWERLINK.NET.DLL" contains errors. This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem (14001).
Error: At least one required implicit or forwarded dependency was not found.
Warning: At least one delay-load dependency module was not found.
Warning: At least one module has an unresolved import due to a missing export function in a delay-load dependent module.

How to make this dll to be accessed by visual c++ project?

How to compare the strings - unicode vc++2010 ?

YoavStein28-May-12 4:30

YoavStein

28-May-12 4:30

It seems that you are trying to deploy a debug build on a non Visual studio client.
You cannot do it. The c run-time is release only.

Paramu197319-Apr-12 2:05

Re: How to compare the strings - unicode vc++2010 ?

19-Apr-12 2:05

Hi,
I want to compare the unicode strings of NVarchar Fields.... Is it possible...?
But when I check in English Laguage string....simply its working fine...
But when I check with Arabic and English datas...its not working well..

Thanks for guidences...

My Codes...

C++

ChkItm1 = String::Empty;
//Now NVarchar Field - supplier_name contains Arabic & English strings.. So how to compare it?
String^ ChkItm1=String::Empty;
String^ KyPrs1=String::Empty;

ChkItm1 = MyGlobalData::PartyTbl->Rows[N7]["supplier_name"]->ToString();

//Naomi = ChkItm1->StartsWith(MyGlobalData::KyPrs1);
//if (Naomi == true) {

//The below line not working well...I don't how to put 'N' for unicode comparision..
if 'N'???????? (ChkItm1->Trim()->Substring(0, MyGlobalData::KyPrs1->Trim()->Length)=='N'????????

MyGlobalData::KyPrs1->Trim()) {
blah...blah...blah...
}

John Schroedl19-Apr-12 3:12

John Schroedl

19-Apr-12 3:12

It seems like you'd want a Culture-Invariant comparison.

Something like this?

bool ignoreCase = true; // you may want false

if (String::Compare("xxxxxx", ChkIt1->Trim()->etc..., ignoreCase, CultureInfo::InvariantCulture) == 0)
// a match!
else
// not a match

John

Re: How to compare the strings - unicode vc++2010 ?

Paramu197320-Apr-12 20:34

How to Declare & Handle the KeyEventArgs for a Sub from a Class ?

20-Apr-12 20:34

Thanks John Thumbs Up | :thumbsup:

Paramu197315-Apr-12 22:19

Re: How to Declare & Handle the KeyEventArgs for a Sub from a Class ?

15-Apr-12 22:19

I have a HeaderFile MyProject_Datas.h

C++

//MyProject_Datas.h 
public ref class MyUsefulDatas 
{ 
	blah...blah...blah... 
	public: static System::Void Item_Name( System::Object^ Sender, System::Windows::Forms::KeyEventArgs^ e) { 
	blah...blah...blah... 
	} 
	public: static System::Void Party_Name( System::Object^ Sender, System::Windows::Forms::KeyEventArgs^ e) { 
	blah...blah...blah... 
	} 
};

And now from my Form2 - textBox2 I would like to declare

C++

textBox2->KeyDown += gcnew KeyEventHandler(MyUsefulDatas, &MyUsefulDatas::Party_Name); ????????

Iam not getting the above line........

Also I would like to learn same statement, how to use in "delegate" statement like the below.....????

C++

textBox2->KeyDown += delegate { .....???????? }

Thanks...

Paramu197316-Apr-12 4:42

Convert C++/CLI code to Visual Studio 2002 Managed C++

16-Apr-12 4:42

After spending my whole day I found the crazier worth of the word, what is "static" ...

Also after removing the word "static" from the above declaration it works well..
Let it be useful to the searchers....

C++

//MyProject_Datas.h 
public ref class MyUsefulDatas 
{ 
public: System::Void Party_Name( System::Object^ Sender, System::Windows::Forms::KeyEventArgs^ e) { 
	blah...blah...blah... 
	} 
}; 

MyUsefulDatas^ MyUseDta=gcnew MyUsefulDatas;
				 
textBox2->KeyDown += gcnew KeyEventHandler(MyUseDta, &MyUsefulDatas::Party_Name);

Thanks...Thanks... Thumbs Up | :thumbsup:

modified 16-Apr-12 10:53am.

goncri11-Apr-12 10:10

goncri

11-Apr-12 10:10

Can I help to convert the next C++/CLI code to Visual Studio 2002 Managed C++?

C++

bool IsPrinterOk(String ^printerName)
{
    bool bResult=false;
    HANDLE hPrinter;


    IntPtr pPrinterName=Marshal::StringToHGlobalUni(printerName);
    WCHAR *pChar=(WCHAR *)pPrinterName.ToPointer();

    if(::OpenPrinter(pChar,&hPrinter,NULL)==0)
        return false;

    DWORD bytesNeeded;
    ::GetPrinter(hPrinter,2,0,0,&bytesNeeded);
    PRINTER_INFO_2 *pf=(PRINTER_INFO_2 *)GlobalAlloc(GPTR,bytesNeeded);

    if(::GetPrinter(hPrinter,2,(LPBYTE)pf,bytesNeeded,&bytesNeeded)!=0)
        if(pf->cJobs==0 && pf->Status==0)
            bResult=true;

    GlobalFree(pf);

    ClosePrinter(hPrinter);

    return bResult;
}

What changes must be made in the code?

Thanks.

Re: Convert C++/CLI code to Visual Studio 2002 Managed C++

Richard MacCutchan11-Apr-12 22:20

Re: Convert C++/CLI code to Visual Studio 2002 Managed C++

11-Apr-12 22:20

goncri wrote:
What changes must be made in the code?

Try compiling it and see what errors or warnings you receive.

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Dave Doknjas12-Apr-12 12:03

Dave Doknjas

12-Apr-12 12:03

Are you sure you want 2002 Managed C++?
The pre-CLI managed C++ syntax was a failed experiment - the syntax was available only for a short time and it was quickly superceded by C++/CLI (even C++/CLI is not commonly used).

David Anton
Convert between VB, C#, C++, & Java
www.tangiblesoftwaresolutions.com

Convert from C# to VC++2010 dataGridView Enter-Key Movements?

Paramu19738-Apr-12 22:13

Re: Convert from C# to VC++2010 dataGridView Enter-Key Movements?

8-Apr-12 22:13

Hi,
I like to convert the following codes from c# to VC++2010. Thanks for the helps.

Actually the codes for dataGridView - Enter Key movement from one cell to another cell [like a tab key...]

public class MyDataGrid : DataGridView 
{
     // FOR ENTER KEY PROCESS WITH DATAGRIDVIEW
        protected override bool ProcessDialogKey(Keys keyData)
        {
            Keys key = keyData & Keys.KeyCode;
            if (key == Keys.Enter)
            {
                base.OnKeyDown(new KeyEventArgs(keyData));
                return true;
            }
            else
            {
                return base.ProcessDialogKey(keyData);
            }
        }
        //Class End
}

Thanks

Dave Doknjas10-Apr-12 10:45

Dave Doknjas

10-Apr-12 10:45

public ref class MyDataGrid : DataGridView
{
protected:
    virtual bool ProcessDialogKey(Keys ^keyData) override
    {
        Keys ^key = keyData & Keys::KeyCode;
        if (key == Keys::Enter)
        {
            DataGridView::OnKeyDown(gcnew KeyEventArgs(keyData));
            return true;
        }
        else
        {
            return DataGridView::ProcessDialogKey(keyData);
        }
    }
};

David Anton
Convert between VB, C#, C++, & Java
www.tangiblesoftwaresolutions.com

error C2061 - Form1 Rename Problem ?

Paramu19737-Apr-12 1:37

Re: error C2061 - Form1 Rename Problem ?

7-Apr-12 1:37

Hi,
Iam very new in VC++2010. And at first I create a new project, and I changed the name
Form1() as MyMainForm()...

And after it shows error MyProject.cpp

C++

#include "stdafx.h"
#include "MyMainForm.h"
blah...blah...blah...blah..

Application::Run(gcnew MyMainForm());

From the bove line it shows error C2061: Syntax error : Identifier 'MyMainForm'

So how to solve this problem...
Thanks For Startup... Thumbs Up | :thumbsup:

Paramu19737-Apr-12 2:26

Re: error C2061 - Form1 Rename Problem ?

7-Apr-12 2:26

Let it be usueful to someone like me..

Just I renamed the file - Form1 as MyMainForm in entire solution....
Then the error gets clear...

Thanks & Regards,
PARAMU Thumbs Up | :thumbsup:

Richard MacCutchan7-Apr-12 6:48