C / C++ / MFC Discussion Boards

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 ?
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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.

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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.

only append strings to RTF?

pro14-Jul-02 10:21

pro

14-Jul-02 10:21

hi,

how can i control the position where to insert my text, or is it only possible to append new text?

(i want to insert lines at the beginning of the already inserted text)

thanks

Re: only append strings to RTF?

User 665814-Jul-02 12:18

User 6658

14-Jul-02 12:18

You could use SetSel(0,0) and then ReplaceSel("your text")
However, this is untested.

regards
Greg

modified 12-Sep-18 21:01pm.

Launching App by double-clicking on file

Stew14-Jul-02 7:14

Stew

14-Jul-02 7:14

I want to be able to have my application open when I double-click on one of the files that the app creates. I modified my app to take in command line parameters and when I double click on the file, I guess it doesn't send any command line parameters and so the app won't open up. Anyone got any ideas about how to pass in the command line parameters to the application when double-clicking on the file?

Re: Launching App by double-clicking on file

Ernest Laurentin14-Jul-02 7:41

Ernest Laurentin

14-Jul-02 7:41

Since the steps are a bit long, so create a temporary project (SDI or MDI).
Normally, you have to call these functions in that order:

EnableShellOpen( );
RegisterShellFileTypes( TRUE );
// Parse command line for standard shell commands, DDE, file open
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);

// Dispatch commands specified on the command line
if (!ProcessShellCommand(cmdInfo))
    return FALSE;

in your CYourApp::InitInstance(). You will also have to modify the
resource script for your document type. Let's say you have a MDI App.

CMultiDocTemplate* pDocTemplate;
pDocTemplate = new CMultiDocTemplate(
    IDR_MYAPPTYPE,
    RUNTIME_CLASS(CMyAppDoc),
    RUNTIME_CLASS(CChildFrame), // custom MDI child frame
    RUNTIME_CLASS(CMyAppView));
AddDocTemplate(pDocTemplate);

You need to change IDR_MYAPPTYPE resource string to match the extension of your application. The extension is the string just before MyApp.Document.
Like I said, the steps are a bit complex and long but this should get you to start.

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CImage class

SilentWarrior14-Jul-02 7:13

SilentWarrior

14-Jul-02 7:13

hi all the gurus of code

im trying to do some image work using CImage class,i read bout it from msdn. but to my surprise i nvr found it in my default mfc classes..
if out there is some one who had used this class could tell me where could i found more info and how to use kinda things bout it.. ill be highly obliged to him //her

looking forward from all the gurus of code

Re: CImage class

Rama Krishna Vavilala14-Jul-02 7:20

Rama Krishna Vavilala

14-Jul-02 7:20

It is in atlimage.h. You need to include that

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Font dialog

Stew14-Jul-02 7:10

Stew

14-Jul-02 7:10

I want to have a font dialog in my application and I'd like to use the CFontDialog from MFC but I don't need things like a script selection box and a preview box on mine. I tried just using the flags to turn off those parts that I don't plan to use or have in my dialog, but the dialog looks like crap because the script dropdown is still there, it's just greyed out etc... All I need is the three list boxes for font, font type, and font size. Does anyone know of a way to get rid of that stuff from the CFontDialog class or do I need to create a new dialog that is specific to my needs? If I have to create a new dialog, is there a method I can use to populate the three list boxes with the same data that is populated in the list boxes on the CFontDialog dialog?

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