C / C++ / MFC

Tons of Variable Declarations

27-Sep-09 22:00

You should post the question in the more appropriate Managed C++ / CLI [^] forum.
Smile | :)

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Herboren27-Sep-09 20:38

Herboren

27-Sep-09 20:38

So I am working on an app, and it requires tons of Variable Declarations, which I dont want them all in my main.cpp view port, it would be too crowded, is there a way to store them in a different file as a list and call them when I need to, for a user to input or to read static vars? This also goes for VB too. I.E:

Main.cpp
--------
int _tmain(){
cout << "Name: "; cin >> userName;
}

external file
--------
string userName;
string userName1;
string userName2;

«_Superman_»27-Sep-09 20:58

27-Sep-09 20:58

You can put all the variable declarations in a header file and #include it in the main.cpp file.
But, if you #include this header in multiple cpp files you will get a multiple declaration linker error.

In such cases, declare all variables in a separate .cpp file.
To use these variables in some other .cpp file like main.cpp, declare the same variables as extern in the main.cpp file.

«_Superman_»
I love work. It gives me something to do between weekends.

Herboren27-Sep-09 21:01

Herboren

27-Sep-09 21:01

so its safe to put a struct() in a header and it will store information to the decl vars in the structure from the main.cpp?

CPallini27-Sep-09 20:59

27-Sep-09 20:59

Yes, you can do that, for instance, in decl.h:

std::string username;
...

and then in main.cpp:

#include "decl.h"

You may also, if it makes sense, make the variables member of a class (or of a namespace).
Smile | :)

Herboren27-Sep-09 21:02

Herboren

27-Sep-09 21:02

sweet!

CPallini27-Sep-09 21:14

Using font in CPaintDC VC6 [solved]

27-Sep-09 21:14

Herboren wrote:
sweet

home Alabama? Big Grin | :-D

Eka Candra27-Sep-09 20:33

Re: Using font in CPaintDC VC6

27-Sep-09 20:33

I made this codes on OnPaint() function:

CPaintDC dc(pdlg);                  // device context for painting
CFont font;
font.CreateFont(
   24,                        // nHeight
   0,                         // nWidth
   0,                         // nEscapement
   0,                         // nOrientation
   FW_HEAVY,                 // nWeight
   true,                     // bItalic
   true,                     // bUnderline
   0,                         // cStrikeOut
   DEFAULT_CHARSET,              // nCharSet
   OUT_DEVICE_PRECIS,        // nOutPrecision
   CLIP_DEFAULT_PRECIS,       // nClipPrecision
   PROOF_QUALITY ,           // nQuality
   FF_SCRIPT ,  // nPitchAndFamily
   "Times New Roman");                 // lpszFacename
dc.TextOut(15, 100, "welcome", 7);
dc.SelectObject(&font);
font.DeleteObject();

Text is appear on dialog form, but it is still on regular style and using arial font type.
Whereas, I have set that font to Italic-underline style. I also changed font facename to Times New Roman and Verdana, but there is no differences when it show on dialog form.

What's wrong with my codes? Is there any missing code?

Help me please...

Thanks and Regards,

modified on Monday, September 28, 2009 2:56 AM

«_Superman_»27-Sep-09 20:36

Re: Using font in CPaintDC VC6

27-Sep-09 20:36

Try putting the line dc.SelectObject before the line dc.TextOut.

«_Superman_»
I love work. It gives me something to do between weekends.

Eka Candra27-Sep-09 20:54

Re: Using font in CPaintDC VC6

27-Sep-09 20:54

thank you <<_Superman_>>...

My problem is solved...
Thanks a lot..

Iain Clarke, Warrior Programmer28-Sep-09 19:58

Iain Clarke, Warrior Programmer

28-Sep-09 19:58

Your problem may be solved, but you may have made another one.

You are keeping the return value of SelectObject, and Selecting it back in later on aren't you?

Iain.

I have now moved to Sweden for love (awwww).
If you're in Scandinavia and want an MVP on the payroll (or happy with a remote worker), or need contract work done, give me a job! http://cv.imcsoft.co.uk/[^]

change color and font push button VC6

Eka Candra27-Sep-09 20:23

27-Sep-09 20:23

Hi all,

Please help me, how to change color and font of push button in visual C++ 6.0?
Any reference that I can learn?
I used dialog based project.

thanks and regards,

«_Superman_»27-Sep-09 20:34

27-Sep-09 20:34

Look at the WM_CTLCOLORBTN Notification[^].

«_Superman_»
I love work. It gives me something to do between weekends.

Eka Candra27-Sep-09 20:48

27-Sep-09 20:48

I have tried using this codes:

HBRUSH CGambarDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	
	// TODO: Change any attributes of the DC here
    if( pWnd->GetDlgCtrlID() == IDC_BUTTON1 )
    {
        // Set color as red.
        pDC->SetBkColor( RGB( 255, 0, 0 ));
        pDC->SetBkMode( TRANSPARENT );
    }
	
	// TODO: Return a different brush if the default is not desired
	return hbr;
}

but, nothing changes happened...
that codes is not correct?

«_Superman_»27-Sep-09 20:55

27-Sep-09 20:55

If you read the remarks section of the document, it says that button with certain styles always use the default colors. In such cases, you would need an owner draw button.

«_Superman_»
I love work. It gives me something to do between weekends.

Eka Candra27-Sep-09 21:14

27-Sep-09 21:14

Thank you for your answers.
Sorry if I confiscating your time. But, I still confuse.
I have read the documents and link to using button on MSDN when I clicked owner-drawn button.

Is it right that these changes possible to do if I use it on Win32App project, not a MFCApp(.exe)?
I have no idea, where I should used this message (WM_CTLCOLORBTN) in Dialog Based Project.
I looked for WM_CTLCOLOR on parent window, I just found OnCtlColor(^).

Please give me explanations.

Thanks a lot.

«_Superman_»28-Sep-09 5:49

28-Sep-09 5:49

Eka Candra wrote:
Is it right that these changes possible to do if I use it on Win32App project, not a MFCApp(.exe)?

Of course.

Eka Candra wrote:
I looked for WM_CTLCOLOR on parent window, I just found OnCtlColor.

MFC maps the OnCtlColor method to the WM_CTLCOLOR message.
So you just need to write your code into the OnCtlColor method.

«_Superman_»
I love work. It gives me something to do between weekends.

David Crow28-Sep-09 3:34

David Crow

28-Sep-09 3:34

Eka Candra wrote:
but, nothing changes happened...

Is OnCtlColor() called?

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How to create a dialog that acts like MDIChild window

kilt30-Sep-09 4:52

kilt

30-Sep-09 4:52

?????????

WM_CTLCOLORBTN has never been for buttons !
Use either OD button or Undocumented Shell buttons.

NAngelUK27-Sep-09 12:02

NAngelUK

27-Sep-09 12:02

Hi there

I want to create a modeless dialog but have it act like a child window (never gets out of my client area, moves with my window, etc) of a MDI Frame window. The dialogs must stay within the MDIClientWnd of the main frame.

I need to create several children like that all based on different dialog templates.
So, I dont want to use CFormViews as I will have to create several documents and children frames.

Any suggestions?

THanxx guys
NAngelGr

Re: How to create a dialog that acts like MDIChild window

«_Superman_»27-Sep-09 16:20

Re: How to create a dialog that acts like MDIChild window

27-Sep-09 16:20

I believe creating documents and views will be easier and more straight forward than what you're trying to do here.

«_Superman_»
I love work. It gives me something to do between weekends.

neil.kuo27-Sep-09 17:33

neil.kuo

27-Sep-09 17:33

I agreed with u, and the CFormView is a plus. Wink | ;)

DirectX 10

MrMcIntyre27-Sep-09 10:57

MrMcIntyre

27-Sep-09 10:57

Hi,

I am looking for an experienced DirectX 10 programmer who could be able to create code for terrain, water and the sky. A team of programmers have already built the foundation of the game as now we just need to start working with DirectX.

Thanks

Andrew McIntyre

Re: DirectX 10

Richard MacCutchan27-Sep-09 12:19

Richard MacCutchan

27-Sep-09 12:19

This is a forum for technical questions. If you need to advertise, then please use the proper channels; even though it may cost you money.

Please read and abide by these guidelines[^].

Re: DirectX 10

CPallini27-Sep-09 23:42