C / C++ / MFC Discussion Boards

how to compare the text of two html pages

Mohsen Saad13-Jun-05 14:19

13-Jun-05 14:19

Hi ,
I want to compare the text of two html pages and then highlight the changed text.Do you have any idea on how to do this

Re: how to compare the text of two html pages

Christian Graus13-Jun-05 14:26

Christian Graus

13-Jun-05 14:26

Please don't post in multiple forums. If you wanted to choose one, the web development one would have been the logical choice ( I don't think you even hit that one, did you ? )

Christian Graus - Microsoft MVP - C++

Need Help! FTP filename with space?

lewislewis_lewis13-Jun-05 12:59

lewislewis_lewis

13-Jun-05 12:59

My_Fun()
{
...
pFtpConn = mysession.GetFtpConnection( my_ftpserver, my_user, my_pass );
CFtpFileFind finder(pFtpConn);
BOOL bWorking = finder.FindFile("/My Projectinfo.inf" );
...
}

The Codes can not found file "My Projectinfo.inf", Why?
Are there some way to acces file has filname have space?

Thank!!!

Re: Need Help! FTP filename with space?

Aamir Butt13-Jun-05 22:06

Aamir Butt

13-Jun-05 22:06

Try removing space in the filename

[edit] Sorry, I didnt read your question in full the first time. I could not find a way to do it with a space and IMO, a filename with a space is not allowed on FTP Servers (not sure though) [/edit]

Einstein: "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."

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How do I remove files from a project build ?

Still learning how to code13-Jun-05 8:01

Still learning how to code

13-Jun-05 8:01

I am using VC++ version 6.0 Although I can ADD files to a project build database using the menu item "Project\Add to project\Files", I'm darned if I can see how to REMOVE files (from the build database) that I have inadvertantly added (or superceeded, etc). I can obviously remove the files from the project directory easily enough, but I will then get build errors. What am I missing here ?

Doug

Re: How do I remove files from a project build ?

Bob Stanneveld13-Jun-05 11:05

Bob Stanneveld

13-Jun-05 11:05

You can remove the file from the project pressing the delete key when you select the item. The other thing that you can do is press the right mouse button one the file you want to exclude and select the settings menu. In the tab general, you see the option 'Exclude file from build.' Select that and... Big Grin | :-D

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: How do I remove files from a project build ?

Still learning how to code13-Jun-05 11:28

Still learning how to code

13-Jun-05 11:28

Hi Bob, Many thanks for your prompt response !! Magic ! (Another mystery solved !)

Doug

Re: How do I remove files from a project build ?

Bob Stanneveld13-Jun-05 11:40

Bob Stanneveld

13-Jun-05 11:40

Glad that I could help you! Big Grin | :-D

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Creating own Error Report Dialogs

RedDragon2k13-Jun-05 6:31

RedDragon2k

13-Jun-05 6:31

Hi,

today i saw a really nice feature. When Install Anywhere crashes (which it does really often; i think it can't handle the 64-Bit) it shows it own error report dialog. Not that stupid common Microsoft Dialog. Know i asked myself how they did it . Any one knows this ?

MFG
RedDragon2kx

Re: Creating own Error Report Dialogs

David Crow13-Jun-05 7:36

David Crow

13-Jun-05 7:36

A dialog is a dialog, regardless of what you put in it or who made it. Now if you've got a screen shot of it, we could probably hypothesize as to how it was created.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Creating own Error Report Dialogs

Bob Stanneveld13-Jun-05 11:02

Bob Stanneveld

13-Jun-05 11:02

Maybe it's a predicted crash. This means that they had forseen the error situation and handled guarded the code using structured exception handling. From there they launched the custom dialog..

This would be IMHO the most obvious that they would have done that.

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: Creating own Error Report Dialogs

Jack Puppy13-Jun-05 16:18

Jack Puppy

13-Jun-05 16:18

Try this

Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!

Adding Sound to AVI Files

Anonymous13-Jun-05 9:25

Anonymous

13-Jun-05 9:25

Can som1 plz tell me how to add sound to AVI Files ... I can add frames but cannot audio to generate an AVI movie ... can some1 plz help me on it

Re: Adding Sound to AVI Files

tom_dx13-Jun-05 13:54

tom_dx

13-Jun-05 13:54

you wont get any help because no one knows what editor your using, duh

IM PROUD TO BE A GMAIL;

Re: Adding Sound to AVI Files

Identity Undisclosed13-Jun-05 18:09

Identity Undisclosed

13-Jun-05 18:09

I am using Visual Studio 6 and i also have the same question ... can somebody help me

Re: Adding Sound to AVI Files

normanS15-Jun-05 3:48

normanS

15-Jun-05 3:48

I added a response to original Anonymous post in the thread. See if it helps you.

Re: Adding Sound to AVI Files

normanS13-Jun-05 16:18

normanS

13-Jun-05 16:18

I have done this using SDK (not MFC, not C++). Is this any use to you?
If so I will clean the code a bit and post it.

Re: Adding Sound to AVI Files

normanS13-Jun-05 20:54

normanS

13-Jun-05 20:54

OK, I had a quick look at my code.
This is SDK-based. Why make it easy?

Some background:
The video frames were captured into memory using libraries which came with my frame grabber card, and the audio was captured at the same time, in audio buffers having the same duration as a video frame (40 milliseconds for PAL video.)

Once I have a set of video frames and corresponding audio frames in memory, capture stops and I write an AVI file.

Here is the portion which writes the AVI (including audio stream initialisation but ignoring video stream initialisation):

<br />
uiResult = AVIFileOpen(&pAVIFile,  AVIFileNameEtc.lpstrFile, OF_CREATE, NULL);<br />
if (uiResult != AVIERR_OK)<br />
	exit;<br />
<br />
memset(&AudioStreamInfo, 0, sizeof(AudioStreamInfo));<br />
<br />
// Fill in the header for the audio stream<br />
AudioStreamInfo.fccType = streamtypeAUDIO;<br />
// StreamInfo.fccHandler = 0; // Not used for audio streams<br />
// StreamInfo.dwFlags = 0; // Appears not to be relevant to audio streams<br />
AudioStreamInfo.dwScale = 1; // Documentation confusing - best guess<br />
AudioStreamInfo.dwQuality = -1; // Use handler default quality<br />
AudioStreamInfo.dwRate = 11025; // Audio hard-coded to 11.025 kHz<br />
AudioStreamInfo.dwStart = 0;<br />
<br />
AudioStreamInfo.dwLength = uiLocalNumFramesUsed * uiAudioBufferActualSize;<br />
// Decided on this based on Windows reports of audio length!<br />
// I really don't know what this parameter must be!<br />
<br />
// StreamInfo.dwInitialFrames;  // Used for playback, I guess<br />
AudioStreamInfo.dwSuggestedBufferSize = uiAudioBufferActualSize;<br />
// bytes per block<br />
AudioStreamInfo.dwSampleSize = 2;  // Same as nBlockAlign<br />
// StreamInfo.rcFrame; // not relevant for audio frames<br />
// StreamInfo.dwEditCount; // maintained by stream handler<br />
// StreamInfo.dwFormatChangeCount; // maintained by stream handler<br />
// StreamInfo.szName[64];  // No idea!<br />
<br />
// Create the audio stream;<br />
uiResult = AVIFileCreateStream(pAVIFile, &pAVIAudioStream, &AudioStreamInfo);<br />
if (uiResult != AVIERR_OK)<br />
	exit;<br />
<br />
uiResult = AVIStreamSetFormat(pAVIAudioStream, 0, &AudioFormat,	sizeof(AudioFormat));<br />
if (uiResult != AVIERR_OK)<br />
	exit;<br />
<br />
for (uiCounter = 0; uiCounter < uiNumFramesUsed; uiCounter++)<br />
{<br />
	// generate the video frame to be saved<br />
	// ###################################<br />
	// Some application-specific code here<br />
	// ###################################<br />
<br />
	// write the video frame (data at gpAVIBufBits) to the stream<br />
	uiResult = AVIStreamWrite(pCompressedVideoStream, uiCounter, 1, gpAVIBufBits, 		bitmapForAVIHeader.biSizeImage, 0, NULL, NULL);<br />
	if (uiResult != AVIERR_OK)<br />
		exit;<br />
		<br />
	// Write the corresponding audio block, captured using WaveIn... functions<br />
	uiResult = AVIStreamWrite(pAVIAudioStream, uiCounter, <br />
		1, pAudioDataBlock[(uiCounter],<br />
		uiAudioBufferActualSize, 0, NULL, NULL);<br />
	if (uiResult != AVIERR_OK)<br />
		exit;<br />
}<br />
// Don't forget to close the streams!!!<br />

customize key bindings / accelerators

ehh13-Jun-05 8:10

ehh

13-Jun-05 8:10

hello,
i searched codeproject, but couldn't find a description of how to support accelerator customization. i'd like users to be able to change accelerator keys at run-time, similar to the one in the Customize... command in visual c++.
thanks,
ed

Re: customize key bindings / accelerators

Blake Miller13-Jun-05 8:50

Blake Miller

13-Jun-05 8:50

Narf! Call CreateAcceleratorTable and make sure you use the handle returned in a call to TranslateAccelerator Big Grin | :-D

Re: customize key bindings / accelerators

ehh14-Jun-05 3:55

ehh

14-Jun-05 3:55

Thanks!
From what I can tell, I'll have to override CFrameWnd::GetDefaultAccelerator() or CDocument::GetDefaultAccelerator(). Strange that these functions aren't documented in the MSVC help file, but it shouldn't be that complicated....
Ed

Re: customize key bindings / accelerators

Blake Miller14-Jun-05 5:01

Blake Miller

14-Jun-05 5:01

If you only want your accelerators to apply to the frame window, I am not sure you need to override for the document, since the only place the document's GetDefaultAccelerator() was called was from the same function in the mainframe. The document's default implementation just returns NULL anyways.

It would also have been ideal if the CFrameWnd::LoadAccelerator was a virtual function, but I never claimed the designers of MFC were particularly farsighted... Oh well Sigh | :sigh:

As a result, you are going to have to load your own and keep track in the GetDefaultAccelerator() you override, and possibly destroy the one created by the default implementation of LoadAccelerator stored in CFrameWnd.m_hAccelTable member variable.

What you could do, is try to load yours, and if it is missing, then return the default handle.
This way, you could define a default set in the resource, and let the user override that with his own settings. A 'revert' would just replace his modified settings with a set from the original copy from the resources.

Re: customize key bindings / accelerators

ehh14-Jun-05 6:30

ehh

14-Jun-05 6:30

I thought what I'd do is to keep a copy of the latest accelerator table in the application object, and override the CDocument virtual GetDefaultAccelerator() method, returning the application's accelerator table, which will then be used by the CFrameWnd instead of the default. It's a bit of a hack, since as you noted, there's no point in storing an accelerator table in each document, but it allows easy reversion to the default (return NULL in the overridden GetDefaultAccelerator() method), and simplifies the management of the user-modified accelerator. I'll give it a try with a simple Hello World application....

ActiveX Ctrl hanging in MFC code: _AfxFindNextMnem

Ian Bowler13-Jun-05 8:09

Ian Bowler

13-Jun-05 8:09

I have an ActiveX control that is a dialog with various other child controls. When the dialog starts up, no control appears to have focus (I haven't explicitly given any child the focus). If I hit a key before giving a child control the focus (via a mouse click), I hang. This is the MFC loop I'm hanging in:

pWnd = pWndStart = _AfxGetChildControl(pWndDlg, pWnd);

while (TRUE)
{
pWnd = _AfxNextControl(pWndDlg, pWnd, CWP_SKIPINVISIBLE | CWP_SKIPDISABLED);

if (COccManager::IsMatchingMnemonic(pWnd, lpMsg))
break;

if (pWnd == pWndStart)
return NULL;
}

Obviously this loop is checking all child controls for a mnemonic that matches the pressed key. If it finds the control with the matching mnemonic, or loops through all of the controls without a match, it returns.

My problem is it never finds a match (whether I hit a matching key or not) and pWnd never equals pWndStart inside the loop.

I've checked my dialog for duplicate mnemonics (though that shouldn't cause this problem).

I'm running out of ideas. Any thoughts?

Thanks!

NOTE: I'm also not getting control Tabbing behavior. I've set my tab order but the Tab key does nothing. I'm thinking these problems are related?

-Ian

Expanding Trees

victorsk13-Jun-05 7:56

victorsk

13-Jun-05 7:56

Hello,

I have a question about expanding CTreeCtrl items. What I first do is populate a tree like this:

void CMain:oDrive(const CString& str)
{
local = true;
m_tmain.DeleteAllItems();
CString cstr = _T(str);
TV_INSERTSTRUCT root = {0};
::ZeroMemory(&root, sizeof(TV_INSERTSTRUCT));
root.hParent = NULL;
root.hInsertAfter = TVI_LAST;
root.item.iImage = 1;
root.item.iSelectedImage = 1;
root.item.pszText = (LPTSTR)(LPCTSTR)cstr;
root.item.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_TEXT;
HTREEITEM root_item = m_tmain.InsertItem(&root);
TV_INSERTSTRUCT tvstruct;
CFileFind find;
BOOL bDir = FALSE;
bool cDir = false;
BOOL bContinue = find.FindFile(cstr + _T("\\") + _T("*.*"), 0);
tvstruct.hParent = root_item;
CString strFileName;
while (bContinue)
{
bContinue = find.FindNextFile();
strFileName = find.GetFileName();

if (find.IsDirectory())
{
bDir = TRUE;
cDir = true;
tvstruct.hParent = NULL;
tvstruct.item.iImage = 0;
tvstruct.item.iSelectedImage = 0;
tvstruct.item.pszText = (LPTSTR)(LPCTSTR)strFileName;
tvstruct.hInsertAfter = TVI_LAST;
tvstruct.item.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_TEXT;
HTREEITEM hThisItem = m_tmain.InsertItem(&tvstruct);
tvstruct.hParent = hThisItem;
m_tmain.InsertItem(&tvstruct);
}
else
{
tvstruct.item.iImage = 2;
tvstruct.item.iSelectedImage = 2;
tvstruct.hParent = NULL;
tvstruct.item.pszText = (LPTSTR)(LPCTSTR)strFileName;
tvstruct.hInsertAfter = TVI_LAST;
tvstruct.item.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_TEXT;
m_tmain.InsertItem(&tvstruct);
}
}
find.Close();
}

This works fine and the tree gets populated with right items. However, when I try to expand a directory by clicking on a + Nothing happens. What I first trying to do is just get a directory name. This is my function that is trying to get a directory name:

void CMain::OnTree(NMHDR* pNMHDR, LRESULT* pResult)
{
NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
HTREEITEM hIT = pNMTreeView->itemNew.hItem;
CString path;
if (pNMTreeView->hdr.code == TVN_ITEMEXPANDING)
{MessageBox("Expanding");}
path = m_tmain.GetItemText(hIT);
while (true)
{
hIT = m_tmain.GetParentItem(hIT);
if (hIT == NULL)
break;
path = m_tmain.GetItemText(hIT) + _T("\\") + path;
}
path += _T("\\*.*");
MessageBox(path);
*pResult = 0;
}

The MessageBox only shows *.* and I can't get a directory name from m_tmain.GetItemText(hIT). Does anybody know what the problem is here? It is necessary to get a directory name to pass that variable to ExploreDirectory(CString some_directory) function. Please help.

Thank you,
Victor.

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