Managed C++/CLI

Re: RETURN VALUE TO WHERE

25-May-07 6:19

OSAMA SALLAM wrote:
when i return value from the function the value return to where

the caller Smile | :)

(really!)

-- modified at 13:42 Friday 25th May, 2007

I thought this question was familiar - see here[^]

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Christian Graus25-May-07 9:57

Christian Graus

25-May-07 9:57

This is the C++/CLI forum, I assume this question is about C++ in general. I recommend buying a very base level beginner book and working through it.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: RETURN VALUE TO WHERE

Hamid_RT28-May-07 7:29

Hamid_RT

28-May-07 7:29

Does this question for this forum or Sql ?

WhiteSky

how do i remove a MouseEventHandler [modified]

Xeef25-May-07 3:14

25-May-07 3:14

hi all
stuckt agein
hope i not highjack this hole topic WTF | :WTF:

void Disp::Lock_Down(System::Object ^o, System::Windows::Forms::MouseEventArgs ^e){<br />
	Lock->MouseMove += gcnew System::Windows::Forms::MouseEventHandler( this, &Disp::Lock_Drag );<br />
	MousePosition=MainF->MousePosition;<br />
}<br />
void Disp::Lock_Up(System::Object ^o, System::Windows::Forms::MouseEventArgs ^e){<br />
>>>>>>>>>>>>>> not like this but how ???  :confused:	<br />
	Lock->MouseMove->Remove(this, &Disp::Lock_Drag);<br />
<<<<<<<<<<<<<<<br />
}

-- modified at 9:48 Friday 25th May, 2007

this works

void Disp::Lock_Down(System::Object ^o, System::Windows::Forms::MouseEventArgs ^e){<br />
	t = gcnew System::Windows::Forms::MouseEventHandler( this, &Disp::Lock_Drag );<br />
	Lock->MouseMove += t;<br />
	MousePosition=MainF->MousePosition;<br />
}<br />
void Disp::Lock_Up(System::Object ^o, System::Windows::Forms::MouseEventArgs ^e){<br />
	Lock->MouseMove -= t;<br />
}

BUT i realy not like "t"
is there a way to get it somehow else mayby out of Object ^o or MouseEventArgs ^e
or how ever whit out the need to store it by my self

c++ coding

farrakh25-May-07 0:17

farrakh

25-May-07 0:17

i want a code of piano play with mouse in c++ coding

led mike25-May-07 5:09

Try reading this forum Guide[^]

25-May-07 5:09

Wow

Mark Salsbery25-May-07 6:19

25-May-07 6:19

led mike wrote:
Wow

World of Warcraft? Poke tongue | ;-P

See Here[^]

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Mark Salsbery25-May-07 10:48

25-May-07 10:48

The above link is for the OP, BTW Smile | :)

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Christian Graus25-May-07 9:58

Christian Graus

25-May-07 9:58

1 - this is the C++/CLI forum. It's different to C++
2 - this is a place to ask for help with your code, not to request people give you code. I know of no place that allows you to ask for people to just write code for you, without offering to pay them for it.

Hamid_RT28-May-07 7:25

Hamid_RT

28-May-07 7:25

Christian Graus wrote:
this is a place to ask for help with your code, not to request people give you code

Well said. Big Grin | :-D

WhiteSky

question

faradgi24-May-07 13:20

faradgi

24-May-07 13:20

hi friend
i start programming in c++ but i can't write a program with my knowledge i know the rules in programs but i don't know how to write a program please guide me to be a real programmer

Sincerely yours Rose | [Rose]

Re: question

Christian Graus24-May-07 20:29

Christian Graus

24-May-07 20:29

First step, think about what you're doing. Like posting a question and putting 'question' in the header. Or asking a C++ question in the C++/CLI forum.

Re: question

Kevin McFarlane26-May-07 6:20

Kevin McFarlane

26-May-07 6:20

Google on "beginner c++ tutorial"

Kevin

Re: question

Hamid_RT28-May-07 7:30

Hamid_RT

28-May-07 7:30

On the upper of screen you can see green bar you can click MFC/C++ for more info.

WhiteSky

datagridview data

Xeef24-May-07 11:19

24-May-07 11:19

hi agein to all

array<String^>^row0 = {"11/22/1968","29"};<br />
      DataGridView1->Rows->Add( row0 );<br />
      row0[0]="2";<br />
      Object^ a= DataGridView1->DataSource;<br />
      a[0]="123";

error C3915: 'System::Object' has no default indexed property (class indexer)

how do i acces the rows after they are created / aplyed i havent try it but i am prety sure i coud overwrite it
like DataGridView1->Rows->Add( somethingelse ); mayby not whit add :p
it woud just append / push it in this case
any way the question is how can i acces it streigt to replace data something like

DataSource[row][col]= "my new value";

i not wana use databinding to a data base as the data are live generated and i dont think it woud make thinks easyer any way Wink | ;)

on top if this is there any way to list the content and types whats in an object
some recursive loop wich woud rotate truh all elements of the object by it an array a mullti dim array or what ever object combination

Re: datagridview data

teejayem24-May-07 12:59

teejayem

24-May-07 12:59

If i'm following you right i think you wanna do something like this

DataGridView^ dgv = gcnew DataGridView();

//---Add rows to the DataGridView


//this
dgv->Rows[0]->Cells[0]->Value = "new date";
dgv->Rows[0]->Cells[1]->Value = "new number";

//or this
dgv[0, 0]->Value = "new date";
dgv[0, 1]->Value = "new number";

Don't be overcome by evil, but overcome evil with good

Re: datagridview data

Xeef24-May-07 13:19

conver size_t to System::String

24-May-07 13:19

thx a lot !

exctly what i need

Xeef23-May-07 8:40

23-May-07 8:40

hi all
new here and also to c++

MeM mem=MeM()<br />
textBoxeS[0] = gcnew System::Windows::Forms::TextBox;<br />
textBoxeS[0]->Size = System::Drawing::Size( 300, 40 );     <br />
textBoxeS[0]->ReadOnly = true;      <br />
//textBoxeS[0]->Text = gcnew String(mem.X()); ????????????	  <br />
textBoxeS[0]->BackColor = SystemColors::Window;<br />
<br />
<br />
MeM::MeM(void)<br />
{	<br />
	GlobalMemoryStatus (&stat);<br />
}<br />
System::String^ MeM::X(){	<br />
		<br />
how do i cast / convert this ---->>>><br />
<br />
char *a=(char*)stat.dwTotalPhys;<br />
return gcnew String(a);  //System.ArgumentOutOfRangeExceptio <br />
<br />
//return  const_cast<System::String^>(stat.dwTotalPhys);<br />
<<<<---------- PROBLEM HERE<br />
<br />
}

other question
is there an AUTOindent function in visual C++ 2005 ?

cheers rick

led mike23-May-07 8:48

23-May-07 8:48

Xeef wrote:
char *a=(char*)stat.dwTotalPhys;

You can't just cast a numeric to a character and then use it in string library functions because they need a null terminator. There are several C/C++/STL implementations like ltoa() and sprintf() etc. that you should research

led mike

Xeef23-May-07 9:07

23-May-07 9:07

cool !

thx a lot !

working so fare Big Grin | :-D

System::String^ MeM::X(){
char a[200];
sprintf_s( a,200, "%d", stat.dwTotalPhys );
return gcnew System::String(a);
}

Mark Salsbery23-May-07 9:02

23-May-07 9:02

Check out Object.ToString(). It is overridden for pretty much all base types.

System::String^ MeM::X()
{ 
   return stat.dwTotalPhys.ToString();
}

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Xeef23-May-07 9:11

23-May-07 9:11

wow so much help in so short time

thank you too

led mike23-May-07 9:13

23-May-07 9:13

Mark Salsbery wrote:
stat.dwTotalPhys.ToString();

led mike

Mark Salsbery23-May-07 9:19

23-May-07 9:19

Heh now what did I do?

The OP wanted a string representation of a DWORD right?

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

led mike23-May-07 9:35