Managed C++/CLI

Jun Du10-Jul-06 4:18

Jun Du

10-Jul-06 4:18

There are several approaches. If you use GDI+ to draw, one simplest is creating a bitmap graphic object as the buffer. Draw to the buffer. Whenever necessary, draw (copy) the buffer to the screen.

Best,
Jun

Pavan Rao10-Jul-06 4:24

Pavan Rao

10-Jul-06 4:24

Jun, thank you for the suggestion,, I shall attempt doing this and shall post the result back here

Cheers
Pavan

Sebastian Schneider10-Jul-06 4:45

Sebastian Schneider

10-Jul-06 4:45

I know this sounds like an ad, but have a look at ZedGraph. Its GPL'ed, documented both on CP and SF, and available from SF or CP as well.

You would be able to offer zooming, human-readable axis-dimensions (min, max, stepsize) and other useful stuff.

Cheers,
Sebastian

--
Contra vim mortem non est medicamen in hortem.

Can I use a vector of class objects?

mertadin21-Jul-06 3:13

mertadin

21-Jul-06 3:13

I hope this will help

// in order to solve flickering i have to use double buffering
this->SetStyle( ControlStyles::AllPaintingInWmPaint, true);
this->SetStyle( ControlStyles::UserPaint, true);
this->SetStyle( ControlStyles::DoubleBuffer, true );

TAPI v dot net

flippydeflippydebop8-Jul-06 20:55

flippydeflippydebop

8-Jul-06 20:55

I have an upcoming TAPI project to be written using Visual C++ 2005. Im just wondering is there some new fan-dangled API in the dot net framework that supercedes the TAPI API?

Suddha Talukdar8-Jul-06 13:07

Suddha Talukdar

8-Jul-06 13:07

I want to know if declaring soemthing like this makes sense?

I have a class whose declario is as follows:
namespace Utility {
class Filebase : public fstream {
public:

and I want to declare a vector of objects of this class. Currently w/o vector I am using an object of this class as:

string signal = ".s_"+layer+"_" + toString (iStage);
Utility::Filebase temp (signal, ios::out);
temp.create(signal);

I want to use Filebase temp using a vector

Is this possible in C++?

Thanks
Suddha

Owner drawn button in VC++ 2005

cshell497-Jul-06 4:09

cshell49

7-Jul-06 4:09

I am looking for a way to add a 16 X 48 matrix of owner drawn buttons to a small
utility I am developing in VC++ 2005. Can anyone direct me to specific articles
or code to accomplish this task. I want to preserve 2d addressing. Initialization
might go like:

private: System::Windows::Forms::Button^ Mybutton[][];

Chris Smile | :)

Re: Owner drawn button in VC++ 2005 [modified]

Nagaraju_Focus7-Jul-06 18:29

Nagaraju_Focus

7-Jul-06 18:29

Go through this code, it may help

array<Button^,2>^ myButton = gcnew array<Button^>(10)(10);
myButton[0][0]=gcnew Button();
myButton[0][0]->Location = System::Drawing::Point(300, 189);
myButton[0][0]->Name = L"button123";
myButton[0][0]->Size = System::Drawing::Size(148, 41);
myButton[0][0]->TabIndex = 1;
myButton[0][0]->Text = L"Added";
myButton[0][0]->UseVisualStyleBackColor = true;
this->Controls->Add(myButton[0]);
this->myButton[0][0] Blush | :O

->Click += gcnew System::EventHandler(this, Form1::button123_Click);

Nagaraju

-- modified at 0:29 Saturday 8th July, 2006

Re: Owner drawn button in VC++ 2005

cshell497-Jul-06 18:54

cshell49

7-Jul-06 18:54

Thank you, I will try the code and will get back in day or two.

Chris Big Grin | :-D

Convertint .Pdf to .txt file

Nagaraju_Focus7-Jul-06 0:30

Nagaraju_Focus

7-Jul-06 0:30

Hi all,
Help me to Get rid of my Task.

In which Some I have to Read contents of some .pdf File and
Write all those Contents in a .txt file and save it;

But When I try to read .pdf file data ,it is showing the encripted charecters.

Pls suggest me

Nagaraju

exporting int array from c++ dll to c# client

Tugberk_Kara6-Jul-06 21:06

Tugberk_Kara

6-Jul-06 21:06

I have a function in cpp file returning int * array and taking int * array as a parameter. It is as:

int * funcArg(int *a ) {
int DLLArg [] = {100,200,300};
a=DLLArg;

return a;
};

I have exported this function in the dll (i have checked it with dumpbin.exe)

But I can not handle this function in c# client. My code in c# is as: ( ıt gives this error. "An unhandled exception of type 'System.Runtime.InteropServices.SafeArrayRankMismatchException' occurred in CSharpClient.exe

Additional information: Safe array of rank 51241 has been passed to a method expecting an array of rank 1."

What should I do? URGENT help!!!

namespace CSharpClient
{

class Class1
{
[DllImport("DenemeNonMfcDll.dll",EntryPoint="?Sub@DLLclass@@QAEHHH@Z")]
public extern static int Sub(int a, int b);

[DllImport("DenemeNonMfcDll.dll")]
[return: MarshalAs(UnmanagedType.SafeArray)]
public extern static int [] funcArg(int [] a);

public static int [] intArray = new int [3] {0,1,2} ;

static void Main(string[] args)
{

foreach (int num in funcArg(intArray) )
{
System.Console.WriteLine(num.ToString());
}

Console.WriteLine("Press any key to continue...");
Console.ReadLine();
}
}
}

Can I use an MFC GUI component in .Net using managed C++?

gunag6-Jul-06 4:42

gunag

6-Jul-06 4:42

Hi,

I want to use a GUI component, which was developed using the MFC, in a .Net program. Is it possible to access the classes using some mc++ wrapper layer? Are there any problems due to the use of the MFC due to which I can not access this component with .Net? If this is possible, how do i do this? Do you know any sample, where somebody did something similar?

Cheers
gunag

Need help in creating a pop-up window

veenu_kvm5-Jul-06 1:25

5-Jul-06 1:25

hi all,

I am working in VC++6.0 IDE.
I want to create a pop-window which displays some message.
Can anyone assist me on how to proceed further and where i can get some useful information.

Thanks in advance,
Veenu.

Jun Du5-Jul-06 3:59

Jun Du

5-Jul-06 3:59

Use message box.

Best,
Jun

veenu_kvm5-Jul-06 19:23

5-Jul-06 19:23

hi jun,

Thank you for the reply.
I tried out Message Box function and it is working fine for me.

I have a doubt.
I want to send a variable value to the mesaage box to output it in the popup .
I mean if i have smthing like this:

for (i=0;i<2;i++)
{
MessageBox( .... );
}

Is there anyway to include this variable , "i" value into the mesage box ?

Thanks in advance,
Veena.

Jun Du6-Jul-06 3:34

Jun Du

6-Jul-06 3:34

Yes. Although Message Box only takes string prarameters, you can always put variables into the string you're going to display. For example,

char str[256];
for (i=0;i<2;i++)
{
  sprintf(str, "The variable is: %d", i);
  MessageBox(str, ...);
}

Note this is just native C code.

Best,
Jun

#pragma warning in projects settings

Nagaraju_Focus7-Jul-06 21:30

Nagaraju_Focus

7-Jul-06 21:30

CString str;
for(i=0;i<2;i++)
{
str.Format("%d",i);
MessageBox(str);

}

Nagaraju

manustone5-Jul-06 0:49

manustone

5-Jul-06 0:49

Hi All,

I've just switched my project from old VS6 to VS.NET 2005.
At compile time, I receive a lots of warning about 'deprecated' functions . Some of them have been disabled using _CRT_SECURE_NO_DEPRECATE. Others are still there.

I would like to use #pragma warning(disable : 4996) without using _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES to override functions with their secure version.

Files are too much to write in each of them: do you know if it is possible to set some projecet settings, or a place where to inserte a single #pragma so that it is valid for all files?

Regards
Manu

Re: #pragma warning in projects settings

earl5-Jul-06 12:33

earl

5-Jul-06 12:33

stdafx.h ?

Re: #pragma warning in projects settings

manustone5-Jul-06 21:52

manustone

5-Jul-06 21:52

..sometimes, life can be very easy!!
Smile | :)

Many thanks Earl!
Have a nice day.
Manu

Connecting to database

veenu_kvm4-Jul-06 18:20

Re: Connecting to database

4-Jul-06 18:20

Hi all..

Can anyone tell me the procedure to follow to connect to a database(Of MySQL Server).Is there any link where i can find some useful information on this topic.

Thanks in advance,
Veenu

_AnsHUMAN_ 4-Jul-06 19:41

_AnsHUMAN_

4-Jul-06 19:41

See Here.[^]
I hope this helps

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Connecting to database

veenu_kvm4-Jul-06 20:12