C / C++ / MFC

Re: How to extract data from webbrowser controle in visual c++ 6?

12-Jul-06 4:57

method007 wrote:
David i do not have CFindUserDlg !!! as u see in that pic i have FindUserDlg.h and FindUserDlg.cpp .

The files (FindUserDlg.h and FindUserDlg.cpp) contain the class (CFindUserDlg). Open the files to verify.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

method00712-Jul-06 5:07

method007

12-Jul-06 5:07

ok here is the content of FindUserDlg.cpp . What should i put there and where?

/////////////////////////////////////////////////////////////////////////////<br />
// CFindUserDlg dialog<br />
<br />
class CFindUserDlg : public CDialog<br />
{<br />
// Construction<br />
public:<br />
	CFindUserDlg(CWnd* pParent = NULL);	// standard constructor<br />
<br />
// Dialog Data<br />
	//{{AFX_DATA(CFindUserDlg)<br />
	enum { IDD = IDD_FINDUSER_DIALOG };<br />
	CString	m_nick;<br />
	CWebBrowser2	m_wbrow;<br />
	//}}AFX_DATA<br />
<br />
	// ClassWizard generated virtual function overrides<br />
	//{{AFX_VIRTUAL(CFindUserDlg)<br />
	protected:<br />
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support<br />
	//}}AFX_VIRTUAL<br />
<br />
// Implementation<br />
protected:<br />
	HICON m_hIcon;<br />
<br />
	// Generated message map functions<br />
	//{{AFX_MSG(CFindUserDlg)<br />
	virtual BOOL OnInitDialog();<br />
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);<br />
	afx_msg void OnPaint();<br />
	afx_msg HCURSOR OnQueryDragIcon();<br />
	afx_msg void OnButton1();<br />
	//}}AFX_MSG<br />
	DECLARE_MESSAGE_MAP()<br />
<br />
public: <br />
int GetPosByNick(CString szNick); <br />
//CString szNick;<br />
//CString m_nick<br />
<br />
};

Re: How to extract data from webbrowser controle in visual c++ 6?

David Crow12-Jul-06 5:34

VC7 Compiler Linker Environment Variables

12-Jul-06 5:34

// Generated message map functions
//{{AFX_MSG(CFindUserDlg)
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
afx_msg void OnButton1();
afx_msg void OnDocumentCompleteExplorer(LPDISPATCH pDisp, VARIANT FAR* URL);
DECLARE_EVENTSINK_MAP()
//}}AFX_MSG
DECLARE_MESSAGE_MAP()

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Dave_Roach11-Jul-06 9:37

Dave_Roach

11-Jul-06 9:37

All

I have a situation where I want to use an environment variable in the path during linking with VC7.

A) is it possible to use environment variables in the path to your OutputFile in the linker options?

B) If so, what is the syntax to use an environment variable in the linkers OutputFile options.

Thanks for your time

Dave

Re: VC7 Compiler Linker Environment Variables

Abhi Lahare11-Jul-06 18:36

Abhi Lahare

11-Jul-06 18:36

Configuration Properties:

Output directory:$(PATH_OF_ENV_VAR)
Linker->$(OutDir)/$(ProjectName).exe

where PATH_OF_ENV_VAR is your env variable.
You may need to restart your machine.
similary you can use $(var) in other options also.
Hope these help.

Regards
Abhishake Lahare

Re: VC7 Compiler Linker Environment Variables

Dave_Roach12-Jul-06 3:43

Dave_Roach

12-Jul-06 3:43

Thanks Abhishake

I ended up finding it after some scowering of the documentation. The very important step is what you mentioned. The re-boot. You have to re-boot after setting a system environment variable. That held me up for about 20 mins too. Smile | :)

Thanks again

Dave

Programming is like cake, you start on one piece and you want eat the whole thing.

Property Sheet Agony

Jethro6311-Jul-06 9:17

Jethro63

11-Jul-06 9:17

Greetings:

I have long been aware of how difficult working with property sheets can be, but whenever I get down to having to deal with one, it never fails to amaze me just how awful they truly are...

Anyway, I set out to make a property sheet where the pages can be re-ordered. Can't do that, I know, so I set out to make it so that if I wanted to insert a property page into the sheet that was NOT at the end, I would actually remove the pages AFTER the point where I wanted to insert the new page and then re-add the pages that were already there.

This worked fine until I tried to INSERT a new page at position ZERO. It seems that if I remove ALL of the pages from the sheet, the property sheet spontaneously commits suicide. Isn't that nice? Who at Microsoft thought that this would be a good idea? What is so wrong with a property sheet that is blank for a few microseconds before it is populated or repopulated?

Can anybody lend some advice here, if not sympathy would be accepted. I really need my property pages to be ordered in a certain way and I will have to insert new pages and also re-order existing ones.

Thanks in advance,
Mark, Toronto

Re: Property Sheet Agony

Jethro6311-Jul-06 9:28

Jethro63

11-Jul-06 9:28

Hi Again:

Shortly after sending off my rant, I realized that my delemma had a simple solution:

In any case of inserting a page, including in the ZERO position, add the new page first, then remove all of the pages that you want to have positioned AFTER the new page. Then just add them all back.

Adding the new page FIRST ensures that the property sheet is never naked.

That's my story.
Regards,
Mark

PS: I still think that property sheets are stupid...

CCheckListBox / CDragDropListBox

Tony Teveris11-Jul-06 8:20

Tony Teveris

11-Jul-06 8:20

I'm looking for a control that incorporates both CCheckListBox / CDragDropListBox. I've attempted to use CDragDropListBox code from this site (non OLE version) but I'm having some problems after moving a list item and attempting to "check" that item.

Thanks in advance

Tony Teveris
Gerber Scientific Products
Senior Software Engineer
Phone: 860 648 8151
Fax: 860 648 8214
83 Gerber Road West
South Windsor, CT 06074

MFC Listctrl perfomance problem [modified]

Jerin John11-Jul-06 8:04

Jerin John

11-Jul-06 8:04

Hi All,

I am facing high performance problem when working with CListCtrl with owner draw data and styles.

When i am inserting around 5000 records it takes more time. I want to avoid this delay. My idea is insert around 100 records initially and in background insert the remaining records. So user no need to wait till insert operation completes. Which is the best solution to solve this type problems.

Different ideas in my mind are
1) Use thread function to insert the data as background process
2) Insert the data into the list control when user scroll the list
3) Use the Peekmessage and Pump message instead of going for thread.

Please suggest me the solution/suggestion if any one faced like this problem.

Thanks.
Jerin

-- modified at 14:04 Tuesday 11th July, 2006

Re: MFC Listctrl perfomance problem

C^hris L^osinger11-Jul-06 10:29

C^hris L^osinger

11-Jul-06 10:29

did you really create a new account just to post the same question (the one immediately below this) ?

Cleek | Image Toolkits | Thumbnail maker

Re: MFC Listctrl perfomance problem

RChin11-Jul-06 10:30

RChin

11-Jul-06 10:30

You could used a combination of 1) and

4) Use the List control in virtual mode. This makes use of the CListCtrl callback functions that request information about visible data only when needed.

I have used this technique in the past where a searching routine returns its result in a list control. A separate thread would do the searching, then post the result (or any other thread-safe method), back to the list control for populating. This is great, especially if you don't know the final number of items that will be shown in the control.

I Dream of Absolute Zero

CListCtrl Performance

prabhudurai11-Jul-06 7:33

prabhudurai

11-Jul-06 7:33

I am high performance problem when working with CListCtrl with owner draw data and styles.

I cant change existing functionalites also using Virtual list control

Problem 1: Actully i am inserting 3000 records takes 2.11.This time only executing of insert statement.

Problem 2:
After inserted all the data if i scroll horizontal and vertical,grid lines is not refresing.if i use Invalidate i am getting flickering.

Please give me the solution/suggestion if any one faced like this problem.

Thanks.

PRABHUDURAI

David Crow11-Jul-06 7:59

11-Jul-06 7:59

prabhudurai wrote:
I cant change existing functionalites also using Virtual list control

If you are prohibited from making changes, how can you be expected to solve the problem?

prabhudurai wrote:
Problem 1: Actully i am inserting 3000 records

If you are using an owner-drawn control, there's no way to insert 3,000 items at a time. The control will only ask you about items that it is going to display (a few dozen at most).

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

led mike11-Jul-06 9:24

11-Jul-06 9:24

DavidCrow wrote:
If you are using an owner-drawn control, there's no way to insert 3,000 items at a time. The control will only ask you about items that it is going to display (a few dozen at most).

Owner-draw doesn't stop you from inserting items does it?
Seems to me I have done that.

"Just about every question you've asked over the last 3-4 days has been "urgent". Perhaps a little planning would be helpful?"
Colin Angus Mackay in the C# forum

led mike

David Crow11-Jul-06 10:23

11-Jul-06 10:23

Well, the LVM_SETITEMTEXT message cannot be used with the LVS_OWNERDATA style. Instead, you must respond to the LVN_GETDISPINFO notification and provide information needed to display the item.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

led mike11-Jul-06 19:04

11-Jul-06 19:04

We may not be talking about the same thing. Here is what I tested with no handling of LVN_GETDISPINFO.

I have CMyListCtrl derived from CListCtrl and set the owner draw style and override DrawItem(). If you don't override DrawItem an Assert is thrown from CListCtrl::DrawItem() if Owner draw style is set.

Then I drop a CListCtrl onto a dialog and add a "control" member variable mapped to the ID of the List Control. Then I change the declaration of the member in the dialog class:

//CListCtrl _list;
CMyListCtrl _list;

Then in the dialog OnInitDialog override I use InsertItem which I believe sends LVM_INSERTITEM message:

_list.InsertColumn(0, _T("Col One"));
_list.InsertColumn(1, _T("Col Two"));

_list.SetColumnWidth(0, 150);
_list.SetColumnWidth(1, 150);

CString sbuf;
for(int n=0; n<100; n++)
{
	sbuf.Format(_T("Item %d"), n+1);
	_list.InsertItem(n, sbuf);
	sbuf.Format(_T("Item %d - 2"), n+1);
	_list.SetItemText(n, 1, sbuf);
}

Notice there are two columns in the list but in my owner draw override I only draw the first one:

void CMyListCtrl::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
	CDC* pDC = CDC::FromHandle( lpDrawItemStruct->hDC);
	CString sbuf = GetItemText( lpDrawItemStruct->itemID, 0);
	pDC->DrawText( sbuf, &lpDrawItemStruct->rcItem, DT_LEFT);
}

As expected the control displays only the first column of all 100 items. If I turn off the Owner Draw Style both columns draw as expected since the control is then drawing.

"Just about every question you've asked over the last 3-4 days has been "urgent". Perhaps a little planning would be helpful?"
Colin Angus Mackay in the C# forum

led mike

David Crow12-Jul-06 4:26

Re: CListCtrl Performance [modified]

12-Jul-06 4:26

led mike wrote:
We may not be talking about the same thing.

Apparently.

led mike wrote:
_list.SetItemText(n, 1, sbuf);

I don't see how you could have done this as the assertion on line 494 of winctrl2.cpp would have fired. It asserts that SetItemText() cannot be used with the LVS_OWNERDATA style.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

led mike12-Jul-06 4:35

12-Jul-06 4:35

Ah now I get it. D'Oh! | :doh:

prabhudurai wrote:
when working with CListCtrl with owner draw data and styles.

Owner Draw and Owner Data are two different things, he posted both, I was talking about draw your were talking about data. Sorry for the confusion. Big Grin | :-D

Oh I see from your first post you stated "owner-draw" as well not "owner data", that makes me feel a little better. Big Grin | :-D

Last modified: Wednesday, July 12, 2006 9:34:40 AM --

David Crow12-Jul-06 4:38

How to output html of url into a RichTextBox in visual c++ 6

12-Jul-06 4:38

led mike wrote:
Owner Draw and Owner Data are two different things

I mistakingly used them interchangeably. Blush | :O

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

method00711-Jul-06 6:54

method007

11-Jul-06 6:54

Hi all. could any one show me how i can get the html of a perticuler url and place that html inside a textbox/editbox for further manipulation. I have done such think in visual basic 6 but i do not know that can be done in visual c++ 6. I be happy if some one show me how i can achive that.Thanks

visual basic 6 method:

RichTextBox1.Text = Inet1.OpenURL(txtURL.Text, icString)

Re: How to output html of url into a RichTextBox in visual c++ 6

led mike11-Jul-06 6:57

Re: How to output html of url into a RichTextBox in visual c++ 6

11-Jul-06 6:57

Do a search on MSDN for CHttpConnection. That will lead to several other classes that wrap the WinInet API for making HTTP requests.

"Just about every question you've asked over the last 3-4 days has been "urgent". Perhaps a little planning would be helpful?"
Colin Angus Mackay in the C# forum

led mike

David Crow11-Jul-06 6:58

Re: How to output html of url into a RichTextBox in visual c++ 6 [modified]

11-Jul-06 6:58

method007 wrote:
could any one show me how i can get the html of a perticuler url and place that html inside a textbox/editbox for further manipulation.

Have you considered URLDownloadToFile()?

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

method00711-Jul-06 7:18

method007

11-Jul-06 7:18

man i am new to visual c++ .i be happy if u guys give me an example of how to use it. Just URLDownloadToFile() will not help me. You migh say msdn but that is not readable at all for starter.!! Furthermore, i do not want to download a url in file i just want to load its html code into a editbox for further process.

-- modified at 13:19 Tuesday 11th July, 2006

Re: How to output html of url into a RichTextBox in visual c++ 6

David Crow11-Jul-06 7:53