C / C++ / MFC Discussion Boards

Re: About pthread scheduling (C programming)

CPallini24-Jan-14 3:24

CPallini

24-Jan-14 3:24

You are welcome.

Veni, vidi, vici.

Re: About pthread scheduling (C programming)

Erudite_Eric29-Jan-14 22:56

Erudite_Eric

29-Jan-14 22:56

Member 10375265 wrote:
any sample code

Copy and paste is no substitute for really understanding a subject. Especially at college.

Don't use sample code, read up on the problem you are trying to solve, read up on the api you are gong to use, and design the thing yourself!

If not you will be a crap engineer.

-edit--

Actually be a crap engineer, It means more and better paid contracts for us proper engineers.

Create Custom Events in Windows OS

AmbiguousName23-Jan-14 20:48

AmbiguousName

23-Jan-14 20:48

Hello. I don't know where to put this question so I am choosing this one (closely related).

I have a softphone. I want to setup a custom event in windows (may be playing a ringtone in WM player or something) whenever I get a call on this softphone. I need it because softphone is basic and doesn't have a ringtone feature.

I could use other softphones but was wondering if there exists such a way, may be spy++ or something(i don't know)? Thanks for any pointer.

This world is going to explode due to international politics, SOON.

Re: Create Custom Events in Windows OS

Richard MacCutchan23-Jan-14 23:11

Richard MacCutchan

23-Jan-14 23:11

AmbiguousName wrote:
I don't know where to put this question so I am choosing this one (closely related).

How is this closely related to C++?

Veni, vidi, abiit domum

Re: Create Custom Events in Windows OS

AmbiguousName23-Jan-14 23:19

AmbiguousName

23-Jan-14 23:19

Richard MacCutchan wrote:
How is this closely related to C++?

I thought someone from this forum could help me out.

This world is going to explode due to international politics, SOON.

Re: Create Custom Events in Windows OS

Richard MacCutchan23-Jan-14 23:53

Richard MacCutchan

23-Jan-14 23:53

AmbiguousName wrote:
I thought someone from this forum could help me out.

With what? This is the C++ forum and I don't see anything in your question related to C++.

Veni, vidi, abiit domum

Mqrtlarge and large message handling differ between Biztalk versions?

Daniel Jansson22-Jan-14 19:24

Daniel Jansson

22-Jan-14 19:24

We've developed a component for sending and reading large messages to msmq queues for communication with Biztalk as implemented as described in this MSDN-article: http://msdn.microsoft.com/en-us/library/aa560386.aspx

Simply explained, you use the PROPID_M_EXTENSION field to describe the parts of the messages using the following content:

GUID defining that it is a multi-part message (16b) GUID for the message (16b) Total size of the entire message (4b) Current part number (2b) Number of message parts (2b) This works perfectly with Biztalk 2006, however with newer editions (2010/2013) it does not work at all.

We've sent large messages out from Biztalk 2013 to a queue and analyzed the field and it seems that the content of PROPID_M_EXTENSION is:

GUID defining that it is a multi-part message (16b) GUID for the message (16b) Part number (2b) Empty data (2b) 1 if it is the last part, otherwise 0 (1b) 3 unknown bytes The problem is the last three bytes, that we can't figure out the purpose of and how to calculate.

The values differs depending on the message content and size. And it feels like some sort of check sum, but we need to be able to set this manually.

Any ideas? There is very little information about this around the web?

The existing mqlarge-dll is in native code and can only be decompiled to assembler, which (for me at least) is hard to debug.

A way around it would be to include a reference to mqlarge in our project and use the existing assembly, but we would rather have our own code and not be dependent on a dll. And it bugs me not to know how it works as well Smile | :)

CDHtmlDialog : Not supporting "Canvas" tag in HTML

Don Guy22-Jan-14 12:38

Don Guy

22-Jan-14 12:38

Hey there,

I have a MFC app that uses CDHtmlDialog class. It supports most of the HTML tags, but not the CANVAS tag. If am right, IE 9+ only have support for Canvas tag.

Which version of IE is used in CDHtmlDialog class?

Is there a way of using Canvas tag in CDHtmlDialog class?

If not the CDHtmlDialog class, is there any other web browser control in MFC that supports Canvas tag?

The reason why i am using CDHtmlDialog class, is to create a rich GUI using HTML/CSS/JavaScript that will be updated dynamically from the back end C++ code.

Thanks in advance.

Re: CDHtmlDialog : Not supporting "Canvas" tag in HTML

Lost Penguin22-Jan-14 16:59

Lost Penguin

22-Jan-14 16:59

The version of IE that is used by CDHtmlDialog is dependent on the OS you use. You can use webkit whick is better than IE. I prefer you to use cef whick is based on Chrome. And Chrome is based on webkit.

Re: CDHtmlDialog : Not supporting "Canvas" tag in HTML

SoMad22-Jan-14 20:17

SoMad

22-Jan-14 20:17

As mentioned in the previous answer, the version of IE used depends on your OS and what version of IE you have installed, but that does not mean it defaults to using IE10 compatibility even if you have IE10 installed.

You might have to take to the registry to get the browser control to behave correctly. Check out this on SO[^], this on MSDN[^] and check your settings by connecting to this[^]

Make sure your HTML file has <!DOCTYPE html> at the beginning and you might have to have <meta http-equiv="X-UA-Compatible" content="IE=9"> in your document as well.

Soren Madsen

"When you don't know what you're doing it's best to do it quickly" - Jase #DuckDynasty

Re: CDHtmlDialog : Not supporting "Canvas" tag in HTML

Don Guy23-Jan-14 5:55

Don Guy

23-Jan-14 5:55

Thanks guys!

VC++ Snippets

BarryPearlman22-Jan-14 7:16

BarryPearlman

22-Jan-14 7:16

Can anyone direct me to an article or book that covers Snippets. It seem like Microsoft had a good idea, but no one wrote down the instructions............Again!

I understand the concept, but not the details. I would also like to know if the snippet is copied and pasted into the IDE or are the snippets linked to as a library at build time?

Thanks,

Barry

Re: VC++ Snippets

Richard MacCutchan22-Jan-14 9:18

Richard MacCutchan

22-Jan-14 9:18

Sorry but what does this have to do with C++?

Veni, vidi, abiit domum

Re: VC++ Snippets

BarryPearlman22-Jan-14 10:03

BarryPearlman

22-Jan-14 10:03

Because its part of the VC 12 IDE package, which millions use to write C++ with!

I am looking for someone with more experience than I. Isn't that part of the purpose of Code Project?

Re: VC++ Snippets

Richard MacCutchan22-Jan-14 20:59

Richard MacCutchan

22-Jan-14 20:59

Lots of information around: https://www.google.com/search?q=Snippets+visual+C%2B%2B[^].

Veni, vidi, abiit domum

Re: VC++ Snippets

David Crow23-Jan-14 3:42

David Crow

23-Jan-14 3:42

Have you tried here.

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

Re: VC++ Snippets

BarryPearlman23-Jan-14 4:01

BarryPearlman

23-Jan-14 4:01

Thanks everyone!

What mac is the best for visual C++

javaandcpp1022-Jan-14 5:31

javaandcpp10

22-Jan-14 5:31

I'm looking forward for buying a mac, I will start game development but what is the best mac for programming in C++?

Re: What mac is the best for visual C++

Richard MacCutchan22-Jan-14 5:39

Richard MacCutchan

22-Jan-14 5:39

I would suggest you post your question on one of the MAC forums, e.g. https://developer.apple.com/technologies/mac/[^].

Veni, vidi, abiit domum

Re: What mac is the best for visual C++

Albert Holguin27-Jan-14 7:30

Albert Holguin

27-Jan-14 7:30

Best mac for visual C++? ...none really. Visual C++ is pretty much the name of the C++ compiler for Windows, so your question is a bit of a contradiction.

Need help to show chm-Files?

bosfan22-Jan-14 4:31

bosfan

22-Jan-14 4:31

Hello community,
i call/open a help-file from my program, this works fine,
only one thing i can't resolve:
on the help file, if i select a next tab(on the left side), for example tab to search in help content, and close file.
Any next start of that file is the last selected tab from previous call. And that is my problem: how to call the help file with selected first tab item, this is how i call a help file:

<br />
HWND hwndHelp = ::HtmlHelpW(m_hWnd, csPathToHelpFile, HH_DISPLAY_TOPIC, dwTopic);<br />

Helpfile is opened, the right topic is shown, but the tab who is selected is the last one of the previous call, how to set the selected Tab to first index?
I found this in "HtmlHelp.h": HH_DISPLAY_CONTENT, is this a key to show first tab with topics?

Thanks in advance
bosfan

Direct Show : "Mp3 Decoder DMO" filter fails to return any input pins

sdancer7522-Jan-14 0:55

sdancer75

22-Jan-14 0:55

Hi,

The code below fails to get any input pins for the filter "Mp3 Decoder DMO".

The class ID for the specific filter is {94297043-BD82-4DFD-B0DE-8177739C6D20} . Specifically, it fails at the very first while condition. I get S_FALSE which means "Did not retrieve as many pins as requested."

Does it play any role that this specific filter is DMO (Direct Media Object) filter ? If this is the case, is there nay other way to get the input pins ?

In my graphedit it connects and works just fine , but under my code it fails. Any recommendations ?

C++

IPin* Graph::GetPin(IBaseFilter *pFilter, PIN_DIRECTION PinDir, UCHAR PinCounter) {
    BOOL       bFound = FALSE;
    IEnumPins  *pEnum;
    IPin       *pPin;
    HRESULT	hr =S_OK;
    UCHAR	localPinCounter = 0;

    hr = pFilter->EnumPins(&pEnum);
	if (SUCCEEDED(hr)) {

			while(pEnum->Next(1, &pPin, 0) == S_OK) {
				PIN_DIRECTION PinDirThis;
				pPin->QueryDirection(&PinDirThis);
				if (bFound = ( (PinDir == PinDirThis) && (PinCounter == localPinCounter) ) )
					break;
				pPin->Release();
				localPinCounter++;
			}

			
			pEnum->Release();

	} else {
		
		return 0;
	}

Regards,

sdancer75

please help me to convert string in Unicode bytes?

Le@rner21-Jan-14 22:54

Le@rner

21-Jan-14 22:54

hi

hi can u please help me to convert string in Unicode bytes,

I do this like this:

C++

CString Hex(long val)
{	
 
	CString Buf=_T("");
	Buf.Format(_T("%X"),val);
	return Buf;
 
}
int Asc(const CString &cs) 
{	
	unsigned char ch= cs[0];
	return ch;
}
int AscW(const CString &cs) 
{	
	CString g=_T("");
 
	//unsigned char ch= cs[0];
	int ch = cs[0];
 
	g.Format(_T("%d"),ch);
 
	return _ttoi(g);
}
 
CString EncodeUserData_16_bit(CString strUserData)
{
	CString EncodeUserData_16_bit;
	int I=0;
	CString hex_string=_T("");
	
	for( I = 0; I<strUserData.GetLength();I++) 	
	{
		hex_string=_T("");
		CString c=strUserData.Mid(I + 1-1, 1);
		
		int ch=Asc(c);
		
		CString g=_T("");
		g.Format(_T("%d"),ch);
 
		ch=AscW(c);
 
		g.Format(_T("%d"),ch);
	
 
		hex_string=Hex(AscW(c));
 
		if(hex_string.GetLength()<4)
		{
			hex_string=PadZero(hex_string,4);
		}
		EncodeUserData_16_bit=EncodeUserData_16_bit+hex_string;
	}
 
	return EncodeUserData_16_bit;
}

its convert the string in Unicode bytes only one problem is that

if I convert "hello" to Unicode its return "00680065006C006C006F" but this result mismatch at the end of process.

if in place of "00680065006C006C006F" the value is "680065006c006c006f00" the process successfully finish.

if u please guide me anyhow of help me to solve this, its so grateful to u.

thanks in advance.

Re: please help me to convert string in Unicode bytes?

Richard MacCutchan21-Jan-14 23:06

Richard MacCutchan

21-Jan-14 23:06

Try something like ...

C++

CString EncodeUserData_16_bit(CString strUserData)
{
    CString strEncoded;
    
    for(int i = 0; i < strUserData.GetLength(); ++i)
    {
        CString unext;
        unsigned int chnext = strUserData[i];
        unext.Format(_T("%.4X"), chnext);
        strEncoded += unext;
    }
    return strEncoded;
}

Veni, vidi, abiit domum

Re: please help me to convert string in Unicode bytes?

Le@rner22-Jan-14 1:09

Le@rner

22-Jan-14 1:09

this return same vale as my function...

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