C / C++ / MFC Discussion Boards

ahdig10-Dec-00 6:52

10-Dec-00 6:52

In MFC, do you know how to launch the Internet Explorer .exe and then open the URL and then download the html from this URL?

Thanks a lot for your help!!

Re: <MFC>Internet Explorer .exe and URL

Uwe Keim10-Dec-00 7:28

Uwe Keim

10-Dec-00 7:28

Use thhe MFC-internet functions/classes directly.

Uwe Keim
http://www.zeta-software.de

Re: <MFC>Internet Explorer .exe and URL

Vickie10-Dec-00 8:06

Vickie

10-Dec-00 8:06

Is that I need to use CHtmlView?

What's the procedure to use the MFC internet class and it's function? I'm sorry that I'm a new programmer in MFC, I'm know a little about it.

Thx for your help!!

Re: <MFC>Internet Explorer .exe and URL

Uwe Keim10-Dec-00 8:08

Uwe Keim

10-Dec-00 8:08

Look for CHttpFile in your documentation:

"... The class CHttpFile provides the functionality to request and read files on an HTTP server ..."

Uwe Keim
http://www.zeta-software.de

Re: <MFC>Internet Explorer .exe and URL

Michael Dunn10-Dec-00 9:35

Michael Dunn

10-Dec-00 9:35

If all you want is the HTML file, you can grab the whole file at once with the URLDownloadToFile() function. See my article "Using Internet Explorer to download files for you" for a description of how to use that API.

--Mike--
http://home.inreach.com/mdunn/
"Didn't I tell you? I've got a brain the size of a planet."
--Marvin the paranoid android

Re: <MFC>Internet Explorer .exe and URL

Chris Maunder10-Dec-00 10:17

Chris Maunder

10-Dec-00 10:17

Or he can use my CWebGrab class from my article "A class to download files from the net". Poke tongue | ;-P

cheers,
Chris Maunder

Re: <MFC>Internet Explorer .exe and URL

Vickie15-Dec-00 7:56

Vickie

15-Dec-00 7:56

Thx a lot!!
I've downloaded the source code of the URLdownload and WebGrab! It seems quite useful for my project! I will take a look within these days! Thx again!

Re: <MFC>Internet Explorer .exe and URL

Jim Howard15-Dec-00 10:11

Jim Howard

15-Dec-00 10:11

There is yet another way.

Look up the article "Internet Downloading Using Asynchronous Monikers". Deriving a class from MFC's CAsyncMonikerFile class is a very easy way to get a URL off the net.

Re: <MFC>Internet Explorer .exe and URL

Vickie25-Jan-01 18:19

Vickie

25-Jan-01 18:19

Hi Milke,

I have tried to build the exe from the source code of URLdownload, however, it shows there is a link error "mfc42ud.lib". I just know it is a unicode library but how can I fix this error? Otherwise, I can't trace the flow of the program.

Looking forward to your reply! Thanks a lot!!

Regards,
Dig

Re: <MFC>Internet Explorer .exe and URL

Michael Dunn25-Jan-01 18:54

Michael Dunn

25-Jan-01 18:54

You're building the Unicode debug configuration, but you didn't install the Unicode files when you installed VC. Switch to the (regular) debug build instead. If you really want the Unicode build, you'll need to rerun the VC setup and install the Unicode libraries.

--Mike--
http://home.inreach.com/mdunn/
Is history an illusion caused by the passage of time, or is time an illusion caused by the passage of history?

Re: <MFC>Internet Explorer .exe and URL

Vickie31-Jan-01 7:02

Vickie

31-Jan-01 7:02

Thanks Micheal.

However, I get another question.

You are using worker thread to handle the downloading process in the program, however, you declared that this is not good. Then do you know how to avoid using thread to handle the downloading process?

Thanks for your valuable advice!

Re: <MFC>Internet Explorer .exe and URL

Michael Dunn31-Jan-01 9:31

Michael Dunn

31-Jan-01 9:31

No, what I did wrong was pass a CWnd object between threads. The proper way to do it is to pass the dialog's HWND between threads. From the worker thread, you can then do the UI updates with SendDlgItemMessage() calls.

--Mike--
http://home.inreach.com/mdunn/
Time is an illusion; lunchtime doubly so.

Re: <MFC>Internet Explorer .exe and URL

Vickie2-Feb-01 4:46

Vickie

2-Feb-01 4:46

What I got from your sentence is that it was not good to pass the pointer "this" in the pParam, right?
If I want to do the handle passing properly, is that I need to change the pParam to this->GetSafeHwnd()? Besides, what I need to modify in the related functions apart from this?

pWorkerThread = AfxBeginThread ( gThreadProc, this,
THREAD_PRIORITY_NORMAL, 0,
CREATE_SUSPENDED );

I am sorry that I am a beginner in Visual C++ and MFC so that I need to ask such kind of question! Thanks for your advice a lot!

Re: <MFC>Internet Explorer .exe and URL

Michael Dunn2-Feb-01 7:46

Michael Dunn

2-Feb-01 7:46

In the worker thread (specifically CCallback::OnProgress()), you'll need to update the UI (progress bars, static text controls) with SendDlgItemMessage() instead of calling the ProgressUpdate() function in the dialog class.

Alternatively, you can package up the info sent to ProgressUpdate() into a struct, and send a custom window message to the dialog. The dialog's handler would read the data from the struct and update the UI.

--Mike--
http://home.inreach.com/mdunn/
Time is an illusion; lunchtime doubly so.

Re: <MFC>Internet Explorer .exe and URL

Vickie2-Feb-01 7:33

Vickie

2-Feb-01 7:33

Besides, since actually I am doing my project for those question, can I make wholly use of the class you'd written "BindStatusCallBack.h"? Since I know it concerns with the copyright, so that I have to ask for your permission beforehand.

Thx!

DirectX 8

10-Dec-00 3:36

Does anyone know where to find a good
tutorial for DirectX 8 programming?

Thanks in advance,
Gregor Schuster

Re: DirectX 8

Christian Graus10-Dec-00 10:42

Christian Graus

10-Dec-00 10:42

Download the documentation with DX8. It is commonly accepted that there are no great books on DX, and that the best source of info is the online documentation. I personally used the Microsoft DX and D3D books as a starting point, but remember, they relate to DX5.

Christian

The content of this post is not necessarily the opinion of my yadda yadda yadda.

To understand recursion, we must first understand recursion.

How do I disable Alt-F4

9-Dec-00 22:54

How do I disable Alt-F4 so that my app doesn't exit on this shortcut?

Re: How do I disable Alt-F4

Christian Skovdal Andersen10-Dec-00 2:02

Christian Skovdal Andersen

10-Dec-00 2:02

If you don't want to close at all handle the WM_CLOSE message and do nothing.

If it is just ALT+F4, try overriding PretranslateMessage() (Assuming you're using MFC)

Christian Skovdal Andersen

Re: How can deal with PreTranslateMessage?

10-Dec-00 21:56

How can deal with PreTranslateMessage to
disable Alt+F4?

Re: How do I disable Alt-F4

James Millson10-Dec-00 2:12

James Millson

10-Dec-00 2:12

Take a small, blunt knife (for example a butter knife) and lift the key 'caps' for 'Alt' and 'F4' out of the keyboard. Then pour quick setting resin in the spaces and leave for five minutes.

Now you have disabled Alt+f4 Smile | :)

. You may like to add this method to your readme file so any end users know as well.

Re: How do I disable Alt-F4

Leo Davidson11-Dec-00 2:11

Leo Davidson

11-Dec-00 2:11

You can disable closing of the window by disabling the close item in the system menu. (This also disables the close gadget and Alt-F4).

if ((WS_CAPTION|WS_SYSMENU) & GetStyle())
{
CMenu *pSysMenu = GetSystemMenu(FALSE);

if (NULL != pSysMenu)
{
pSysMenu->EnableMenuItem(SC_CLOSE, MF_BYCOMMAND | MF_GRAYED);
}
}

Position of child windows.

9-Dec-00 20:25

I wish to get the coordinates for the upper left corner of a control derived from a control class, for example CButton. The coordinates should be relative to the uppper left corner of the parents client area.

I've seen that one possible way is to use GetWindowRect, but then I must know the size of the non-client area. How can I get that, or is there a better way to do this?

Re: Position of child windows.

Tim Deveaux10-Dec-00 4:53

Tim Deveaux

10-Dec-00 4:53

You might look at the CWnd::ScreenToClient() method:

void CNewFormView::OnButton2() 
{
    RECT buttonRect;
 
    CButton* cb = (CButton*)GetDlgItem(IDC_BUTTON1);
    
    // this gets the rectangle in screen coordinates...
    cb->GetWindowRect(&buttonRect);
 
    // this normalizes to client coordinates, since we're calling from the parent...
    ScreenToClient(&buttonRect);
 	
}

Re: Position of child windows.

10-Dec-00 4:58

That was a smart one. I had already solved it, but this cuts my code with 4 rows.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.