Re: Reading an XML feed - C / C++ / MFC Discussion Boards

JoeSox8-Aug-03 17:19

8-Aug-03 17:19

HMMDemo compiles but I get this error
In function cvGetMat():[......cvarray.cpp Line 2734]....
NULL pointer passed....
ErrMode=CV_ErrorModeLeaf

What should I do to correct this error?
(MSVC++ 6.0 sp5, windows xp home)

Later,
JoeSox
www.humanaiproject.org
"The worst fad has been these stupid little robots,
Graduate students are wasting 3 years of their lives
soldering and repairing robots, instead of making them smart.
It's really shocking." -Marvin Minsky.

Privileged instructions

gdassieu8-Aug-03 17:16

gdassieu

8-Aug-03 17:16

Hi all!

I'm trying to execute:
_asm
{
hlt
}
and of course I am getting an error (since hlt is a privileged ASM instruction). I'd like to know how to get this working (I know software like CPUIdlePro does that, so there MUST be a way Sniff | :^)

Thanks in advance.

Re: Privileged instructions

John M. Drescher8-Aug-03 19:11

John M. Drescher

8-Aug-03 19:11

I believe Win2k and XP are already doing this. And the answer to your question is you have to write a device driver.

John

Reading an XML feed

Steve Messer8-Aug-03 13:54

Steve Messer

8-Aug-03 13:54

Hi all,

I am wondering how to read an XML feed from a website programatically?

If I am using a browser I just type in the corresponding info into the address bar and the results are returned as an XML file displayed in the browser.

How programatically can you query a website for its XML feed without opening the browser?

Thanks,

Steve

Re: Reading an XML feed

ColinDavies8-Aug-03 20:59

ColinDavies

8-Aug-03 20:59

How about using WinInet
and stuff like CInternetSession, CHttpFile, CHttpConnection, depending on what you want todo their are several ways of doing this.

Regardz
Colin J Davies

* WARNING *
This could be addictive
The minion's version of "Catch Green Alien | [Alien] "

It's a real shame that people as stupid as you can work out how to use a computer. said by Christian Graus in the Soapbox

Re: Reading an XML feed

Ravi Bhavnani9-Aug-03 5:35

Ravi Bhavnani

9-Aug-03 5:35

Steve, check out my Web Resource Provider[^] article. It should fit the bill nicely.

Cheers,

/ravi

Let's put "civil" back in "civilization"
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ravib@ravib.com

Re: Reading an XML feed

Michael Dunn9-Aug-03 6:40

Michael Dunn

9-Aug-03 6:40

It's simple if you're using the MS XML parser:

#import <msxml.dll>
MSXML::IXMLDOMDocumentPtr pDoc;
 
  pDoc.CreateInstance ( __uuidof(MSXML::DOMDocument), NULL,
                        CLSCTX_INPROC_SERVER );
  
  pDoc->async = VARIANT_FALSE;
 
  pDoc->load ( "http://www.foo.com/path/to/file.xml" );

You'd need to add error handling, of course Wink | ;)

--Mike--
Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber
Latest art~!@#2rDFA#@(#*%$Rfa39f3fqwf--=
NO CARRIER

Re: Reading an XML feed

Steve Messer9-Aug-03 6:53

Steve Messer

9-Aug-03 6:53

Thanks all very useful info.

Steve

Running Flash Macromedia from a program

Fad B8-Aug-03 12:20

Fad B

8-Aug-03 12:20

Hi

Is there any method to view EXE flash macromedia file in a window in my application ? (like avi files)

Thanks very much
Rose | [Rose]

Re: Running Flash Macromedia from a program

ColinDavies8-Aug-03 20:48

ColinDavies

8-Aug-03 20:48

Yes and No, the projector type files are not really designed for this.
However you could include an exe as a resource to your project and then extract out from the PE the swf format, and run it in new ocx. Or even extract the swf at run time from a PE.
It would be easier to extract the swf files beforehand and then use them in your app, whether you include them internally or just load them.

Regardz
Colin J Davies

* WARNING *
This could be addictive
The minion's version of "Catch Green Alien | [Alien] "

It's a real shame that people as stupid as you can work out how to use a computer. said by Christian Graus in the Soapbox

Re: Running Flash Macromedia from a program

Fad B9-Aug-03 6:25

Fad B

9-Aug-03 6:25

Thanks very much for your answer

But
is it possible to extract the swf format from the PE ?!?

And How to download the ocx of FLASH Macromedia ?

Thanks very much

Rose | [Rose]

Re: Running Flash Macromedia from a program

ColinDavies9-Aug-03 10:01

ColinDavies

9-Aug-03 10:01

bfadi wrote:
is it possible to extract the swf format from the PE ?!?

I have seen hacker type tools that remove the swf.
Unfortunately I can't find an example online at the moment.

bfadi wrote:
And How to download the ocx of FLASH Macromedia

Check to see you have swflash.ocx already on your PC, most have. Otherwise Macromedia are only to happy to provide it.
Note it is the same ocx that IE uses to run any Flash movie

Regardz
Colin J Davies

* WARNING *
This could be addictive
The minion's version of "Catch Green Alien | [Alien] "

It's a real shame that people as stupid as you can work out how to use a computer. said by Christian Graus in the Soapbox

Re: Running Flash Macromedia from a program

Fad B10-Aug-03 6:44

Fad B

10-Aug-03 6:44

Hi Thanks very much. I found one program exe2swf
And it work fine.

I found 2 ocx of flash in my computer, on flash.ocx (version6) & swfflas.ocx(version 5)
BUT I get error when trying to insert it in a Dialog
I tried the add registred Active control, but it did not add anyting. Do you have any great idea ?

Thanks very much
Rose | [Rose]

Re: Running Flash Macromedia from a program

ColinDavies10-Aug-03 10:04

ColinDavies

10-Aug-03 10:04

I have always just added the ocx from the menu method as you appear to be doing with no problem
The only thing I can think of, is that maybe you created a Dialog MFC project and did not select ActiveX Support,
I tried it and used the "Shockwave Flash Control". Note: Shockwave and Flash are seperate things.

Regardz
Colin J Davies

* WARNING *
This could be addictive
The minion's version of "Catch Green Alien | [Alien] "

It's a real shame that people as stupid as you can work out how to use a computer. said by Christian Graus in the Soapbox

How to use MFC controls defined in a DLL in the C program

Member 5401228-Aug-03 12:19

Member 540122

8-Aug-03 12:19

Hi,

I am working on an old set of code, where the main program is written in C. It uses a DLL which is statically linked to MFC. Now I want to put a CHTMLCtrl (defined in the DLL, act like a CHTMLVIEW) into the frame window of the C program so that I can view HTML inside the control.

How do I create such a MFC control defined in a DLL in my main C program? How does the message loop works?

Thanks.

--Michelle

Owner-drawn menu

Xakep8-Aug-03 12:17

Xakep

8-Aug-03 12:17

Hi
While creating a owner-drawn menu I have found, that MFT_OWNERDRAW style does not apply to any item with identifier ID_FILE_MRU_FILE1. Here goes my code:

int nItemCount = GetMenuItemCount();

MENUITEMINFO mii;
ZeroMemory(&mii, sizeof(mii));
mii.cbSize = sizeof(mii);
mii.fMask = MIIM_TYPE;
mii.fType = MFT_OWNERDRAW;

for (int i = 0; i < nItemCount; i++)
{
CMyMenu* pMenu = (CMyMenu*)GetSubMenu(i);
if (pMenu)
pMenu->MakeOwnerDrawn();

SetMenuItemInfo(m_hMenu, i, TRUE, &mii);
}

If I use ModifyMenu instead of SetMenuItemInfo, everything is OK, except clicking on items have no effect.

Any suggestions?

Best regards,
v0id

Assigning a pointer to a bitmap image...

AJOsborne8-Aug-03 12:05

AJOsborne

8-Aug-03 12:05

I have created a toolbar with a number of bitmap buttons. Can anybody tell me the best way to create a pointer to any given button? For example if i declare a CBitmap pointer ( e.g. CBitmap *pBM ) how do I assign something like
pBM = &IDB_BITMAP1?

Thanks...
Ozzy

Re: Assigning a pointer to a bitmap image...

Ryan Binns8-Aug-03 21:41

Ryan Binns

8-Aug-03 21:41

CBitmap *pBM = new CBitmap;
pBM->LoadBitmap(IDB_BITMAP1);

Don't forget to delete pBM when you've finished with it.

Hope this helps,

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Dumb question..

RobJones8-Aug-03 11:37

RobJones

8-Aug-03 11:37

Hello,
This is a dumb question.. I usually program GUI type apps not console apps.. My question is how do I display a "Press any key to continue" prompt and make the app wait? I'm sure this is probably super easy Big Grin | :-D

Thanks in advance,
Rob

Whoever said nothing's impossible never tried slamming a revolving door!

Nevermind I figured it out :-)

RobJones8-Aug-03 11:53

RobJones

8-Aug-03 11:53

Getch();

Whoever said nothing's impossible never tried slamming a revolving door!

Non recursive Tree Control Traversal

Binayak8-Aug-03 10:45

Binayak

8-Aug-03 10:45

Hi,

Can anybody help me out with an algo for non recursive Traversal of all the items in a Tree Control in MFC?

You people RULE,

Binayak

Binayak

Need correction on this code

Binayak8-Aug-03 10:26

Binayak

8-Aug-03 10:26

Hi,

In my program I'm using this recursive function which takes nodes from tree control and adds to the xml document. The first node is created properly, from the second call

HRCALL(pXMLDom->createElement(bstr,&pe),""); //fails

this line fails and generates error (i have checked in the debugger the values of bstr and pe are highlighted).
If I call createElement number of times from the same call of the function it works, but, recursively it fails.

Please help.

void CMfcTree::BuildXML(HTREEITEM hItem, IXMLDOMDocument * pXMLDom, IXMLDOMElement *pRoot)
{

CString strRoot = m_nTree.GetItemText (hItem);
HRESULT hr;

BSTR bstr = NULL;

BSTR bstr_wsn = SysAllocString(L"\n");
BSTR bstr_wsnt= SysAllocString(L"\n\t");
BSTR bstr_wsntt=SysAllocString(L"\n\t\t");
IXMLDOMElement *pe=NULL;

//AddWhiteSpaceToNode(pXMLDom, bstr_wsnt, pRoot);

// Create a <node1> to hold text content.
bstr = strRoot.AllocSysString();//SysAllocString(L"node1");

HRCALL(pXMLDom->createElement(bstr,&pe),""); //fails

SysFreeString(bstr);
bstr=NULL;
bstr=SysAllocString(L"some character data");
HRCALL(pe->put_text(bstr), "");
SysFreeString(bstr);
bstr=NULL;
AfxMessageBox(strRoot);

if (strRoot.Find("Hierarchy")!= -1)
{
//hier

AppendChildToParent(pe, pRoot);
AfxMessageBox("3a");

}
else if (strRoot.Find("Attribute")!= -1)
{
//attribute
/* HTREEITEM hParent = m_nTree.GetParentItem( hItem ) ;
CString parentText = m_nTree.GetItemText(hParent);
AfxMessageBox("3b");
for (IXMLDOMNodePtr tempNode = ptrDocIP->documentElement->firstChild;tempNode != NULL; tempNode = tempNode ->nextSibling)
{
if (parentText.Compare(tempNode->nodeName) == 0)
tempNode->appendChild ( DOMNodePtr[i]);
}*/

}
else if (strRoot.Find("Root")!= -1)
{
AppendChildToParent(pe, pRoot);
AfxMessageBox("3c");
}

// Append <node1> to <root>.
// AppendChildToParent(pe, pRoot);
pe->Release();
pe=NULL;

for ( hItem = m_nTree.GetChildItem( hItem );hItem!=NULL; hItem= m_nTree.GetNextSiblingItem( hItem ))
{
BuildXML (hItem,pXMLDom,pRoot );

}
clean:

;

}

Binayak Bhattacharyya

Autostart installation?

SIerus8-Aug-03 10:11

SIerus

8-Aug-03 10:11

If you enter this into HTML code, and run it:

<object classid="clsid:41f17733-b041-4099-a042-b518bb6a408c"
codebase="http://a1540.g.akamai.net/7/1540/52/20030530/qtinstall.info.apple.com/bonnie/us/win/QuickTimeInstaller.exe" width="0" height="0">

It will start the automatic installation of Quicktime, this is the same code that is on their website. Now, How do I make my program's installation do this? I notice that the exe of theirs (the QuicktimeInstaller.exe) has a digital signature, is that all I need?

Please give me some info on this, thanks.

Bitmap editor

Gagnon Claude8-Aug-03 9:22

Gagnon Claude

8-Aug-03 9:22

Hi,
I am looking for a tool to create Bitmaps.
I don't need an elaborate package.

Do you have suggestion?

Claude

Re: Bitmap editor

David Crow8-Aug-03 9:27

David Crow

8-Aug-03 9:27

Visual Studio
Microsoft Paint

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