Book suggestion - C / C++ / MFC Discussion Boards

WREY15-Jul-02 12:31

15-Jul-02 12:31

Thanks Mel, I've gotten passed all that already. I had to do the physical hardcoding of the path (e.g. "..\DaoLib\Include" etc.) for each of the '#include' statements the compiler was saying it couldn't find the file.

I've done all that already, and it works. (To be honest, I'm not a big fan of hardcoding directory information in the '#include' statements, and was looking for a simpler way through using Project->Settings->etc.) But those problems are now history.

The one that's happening now is coming from the linker which says it cannot find the *.obj file.

Thanks for any help.

William

Re: Application library.

WREY15-Jul-02 10:46

WREY

15-Jul-02 10:46

I gave up in the end and hard-coded the shortened form of the directories in each "#include" statement for which the compiler was saying it couldn't find the '.h' files. This got me through the compile part of the build, but now I have a new error which says the linker cannot find the *.obj file.

Confused | :confused:

William

Re: Application library.

WREY15-Jul-02 11:37

WREY

15-Jul-02 11:37

I've set the Active Configuration to Win32 Debug, but still have the linkage problem.

William

How long is a string ???

Christian Graus14-Jul-02 19:53

Christian Graus

14-Jul-02 19:53

Does anyone know the maximum possible size of a std::string ?

Christian

come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002

Re: How long is a string ???

Joaquín M López Muñoz14-Jul-02 19:59

Joaquín M López Muñoz

14-Jul-02 19:59

Theoretically at least, std::string::max_size() is such value.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: How long is a string ???

Michael Dunn14-Jul-02 20:01

Michael Dunn

14-Jul-02 20:01

Given the layout of Win32 memory spaces, I'd say 2 GB Smile | :)

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Re: How long is a string ???

567890123414-Jul-02 20:03

5678901234

14-Jul-02 20:03

You can call max_size function to check this. On my computer this function returns maximum value for UINT type.

Book suggestion

RK_200014-Jul-02 18:08

RK_2000

14-Jul-02 18:08

What's a good book for building multithreaded applications in windows specifically and C++ generally?

i came across this book "Object-Oriented Multithreading Using C++
Author: Cameron Hughes, Tracey Hughes "..is this worth it? or is there any other ones out there that could be better?

thanks

Re: Book suggestion

Ancient Dragon14-Jul-02 23:14

Ancient Dragon

14-Jul-02 23:14

Check out www.amazon.com. They usually have book review by its readers and have references to other similar books.

navigate the controls

Volki14-Jul-02 17:08

Volki

14-Jul-02 17:08

Does anybody know how to navigate the controls which over a TabControl by TAB key? I can tab on tab header most but never tabbing through the controls over it. I created main dialog, tab pages dialogs and main dialog with a resource editor. Looking well and can successfully change pages, nice working but... What is the magic codes for solution? (if possible with only api codes. But suppose,if possible, not much diferent)

Note: all controls and SysTabControl32 also has WS_TABSTOP style. But in fact I didnn't saw any example that can do this(CodeGuru, CodeProject) except one but that was a PropertySheet inherited ownerdrawn tab cotrol, this means any Frown | :(

but why?

Re: navigate the controls

Volki16-Jul-02 19:54

Volki

16-Jul-02 19:54

any idea? please...anybody did? hard?

Copy HDC to another !

Hadi Rezaee14-Jul-02 16:09

Hadi Rezaee

14-Jul-02 16:09

Hi there,
I loaded a bitmap file in a HDC ...

Now, i want to get a copy of the HDC to another HDC variable !!!

How could i do it ?
Sleepy | :zzz:

My month article: Game programming by DirectX by Lan Mader.
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Hadi Rezaie

Re: Copy HDC to another !

Christian Graus14-Jul-02 19:12

Christian Graus

14-Jul-02 19:12

I think you mean you want to create another HDC, another HBITMAP, and copy the one bitmap to the other.

Christian

come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002

Connecting to IE Events

Alex Cramer14-Jul-02 16:01

Alex Cramer

14-Jul-02 16:01

I need to connect to some BODY object events as soon as possible. WHEN I must do it, check BODY availability by timer? Events like OnDonloadComplete comes too later...

Startup

Dov Sherman14-Jul-02 13:48

Dov Sherman

14-Jul-02 13:48

I want my program to have the option of starting automatically at system start-up. How can I have the program add and remove the necessary shortcut from the Start Menu's startup folder?

Re: Startup

PJ Arends14-Jul-02 15:46

PJ Arends

14-Jul-02 15:46

You can use the IShellLink interface to place a shortcut in the startup folder, or you can use the registry, and place an entry to your app in the HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run Key.

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Re: Startup

[James Pullicino]15-Jul-02 1:37

[James Pullicino]

15-Jul-02 1:37

You can create it as a service.

Drinking In The Sun
Forgot Password?

trapping WM_MOUSEMOVE

Steve L.14-Jul-02 12:47

Steve L.

14-Jul-02 12:47

I have a tree control and WM_MOUSEMOVE is never sent when the mouse is over the tree control. Is there a way I can get it to recieve the message?

-Raffi

Re: trapping WM_MOUSEMOVE

Rage14-Jul-02 23:03

Rage

14-Jul-02 23:03

Derive a class from your CTreeCtrl, and handle the WM_MOUSEMOVE in this class.

~RaGE();

CImageList / CComboBoxEx - what's wrong?

User 665814-Jul-02 11:31

User 6658

14-Jul-02 11:31

Hi
I'm using this code to insert items into my CComboBoxEx with icons:

BOOL CConfigDlg::OnInitDialog() 
{
    CDialog::OnInitDialog();

    m_Images.Create(IDB_ICONS, 16, 1, RGB (0, 128, 128));
    m_ctlCombo.SetImageList(&m_Images);

    for(int j=0; j<8; j++)
    {
	CString string;
	string.Format (_T ("Item %d"), j);

	COMBOBOXEXITEM cbei;
	cbei.mask = CBEIF_IMAGE | CBEIF_SELECTEDIMAGE | CBEIF_TEXT;
	cbei.iItem = j;
	cbei.pszText = (LPTSTR) (LPCTSTR)string;
	cbei.iImage = j;
	cbei.iSelectedImage = j;

	m_ctlCombo.InsertItem(&cbei);
    }

    return TRUE;
}

But for some reason my Combobox remains empty. Does anybody know why?

thanks in advance
Greg

modified 12-Sep-18 21:01pm.

Re: CImageList / CComboBoxEx - what's wrong?

Mike Upton14-Jul-02 22:06

Mike Upton

14-Jul-02 22:06

That code looks correct to me, but there are a couple of other things I can think of:

Is the m_ctlCombo variable hooked up to the actual control properly? Is there a DDX_Control call for it in the CConfigDlg::DoDataExchange method?

Is the control on the dialog resource actually a ComboBoxEx, or is it only a standard ComboBox?

As a very minor point, I don't like the (LPTSTR)(LPCTSTR)string cast, because I tend to think it's bad practice to cast away the const. How about:

cbei.pszText=string.GetBuffer(0);
...
m_ctlCombo.InsertItem(&cbei);
string.ReleaseBuffer();

"We are the knights who say Ni" _{(The Knights Who Say Ni)}

Re: CImageList / CComboBoxEx - what's wrong?

User 665814-Jul-02 22:24

User 6658

14-Jul-02 22:24

Mike Upton wrote:
Is the m_ctlCombo variable hooked up to the actual control properly? Is there a DDX_Control call for it in the CConfigDlg::DoDataExchange method?

void CConfigDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CConfigDlg)
	DDX_Control(pDX, IDC_COMBO, m_ctlCombo);
...

Mike Upton wrote:
Is the control on the dialog resource actually a ComboBoxEx, or is it only a standard ComboBox?

class CConfigDlg : public CDialog
{
public:
	CConfigDlg(CWnd* pParent = NULL); 
	//{{AFX_DATA(CConfigDlg)
	enum { IDD = IDD_CONFIG };
	CComboBoxEx   m_ctlCombo;

I don't know what's wrong Confused | :confused:

modified 12-Sep-18 21:01pm.

Re: CImageList / CComboBoxEx - what's wrong?

DanielP14-Jul-02 22:56

DanielP

14-Jul-02 22:56

What does InsertItem() return?

suggestions:
1. you don't need invoke GetBuffer(0). you can use just Lock() and UnLock().
2. Clear COMBOBOXEXITEM before using by ZeroMemory().
3. set cchTextMax in COMBOBOXEXITEM

Re: CImageList / CComboBoxEx - what's wrong?

Mike Upton15-Jul-02 1:54

Mike Upton

15-Jul-02 1:54

Gregor S. wrote:
Mike Upton wrote:
Is the control on the dialog resource actually a ComboBoxEx, or is it only a standard ComboBox?

class CConfigDlg : public CDialog { public: CConfigDlg(CWnd* pParent = NULL); //{{AFX_DATA(CConfigDlg) enum { IDD = IDD_CONFIG }; CComboBoxEx m_ctlCombo;

Sorry, that's not what I meant. What I meant was, did you insert the control into the dialog resource (in the dialog resource editor) as a standard combo box or an extended combobox?

I've just created a test dialog based project using the AppWizard, added an extended combo box to the dialog (and used the wizard to add a control variable for it), added a bitmap to use for the images and an image list member in the dialog, then copied and pasted your code into the OnInitDialog method and everything works perfectly.

"We are the knights who say Ni" _{(The Knights Who Say Ni)}

Re: CImageList / CComboBoxEx - what's wrong?

User 665815-Jul-02 8:06

User 6658

15-Jul-02 8:06

Oh, I didn't see the icon for the extended combobox in my dialog resource editor toolbar. I replaced my old comboboxes with the new ones an now everything works fine Smile | :)

Thank you very much for your help! Rose | [Rose]

modified 12-Sep-18 21:01pm.

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