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It sounds like you want to make your job a lot harder by not using MFC. Hopefully you have a very good reason for this.
GetParentItem() is:
_AFXCMN_INLINE HTREEITEM CTreeCtrl::GetParentItem(HTREEITEM hItem) const
{ ASSERT(::IsWindow(m_hWnd)); return (HTREEITEM)::SendMessage(m_hWnd, TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)hItem); }
If you have the MFC Source it is very easy to find this out.
I can't find CopyBranch() - are you sure this isn't a function in the example program.
Neville Franks, Author of ED for Windows. Free Trial at www.getsoft.com
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Kayembi wrote:
I have no idea what the equivalents of GetParentItem() and CopyBranch()
GetParentItem() --> TreeView_GetParent() macro or TVM_GETNEXTITEM with the TVGN_PARENT flag. The macro is the simpler way though.
CopyBranch() is not an MFC function. It's a function that was written for that code. You'll have to look at the source code for it to work out how to convert it.
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"
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Thank you both for the replies, much appreciated.
The only reason I'm not using MFC is that as a relative coding novice, I haven't really touched it yet - I need to buy a book on it and dive in soon, I know. 
Also, the rest of my program has been written without MFC, as it started off as a fairly straightforward dialog app a year or so ago. Now that I'm updating it, though, it's getting a lot more complicated, but I'm reluctant to rewrite the whole thing in MFC because of my inexperience and the amount of time this would take (re-learning how to do everything I've already coded + coding it).
Many thanks again for the help!
Cheers,
KB
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no I'm not referring to linux here, but CTreeCtrl. I'm using it for parsing an XML document. A class is doing all the parsing (this makes it easier to maniage and more OO) and its returning a CTreeCtrl * (thats the only way i could return a CTreeCtrl) how do I get the resourcec that is mapped to m_ctrlXMLTree to use the contents that the function returns.
Heres the source:
CParseDocument m_clsParse;
m_ctrlXMLTree=m_clsParse.BeginParseDocument(m_strContents);
and it complains:
C:\Documents and Settings\Steven Hicks\My Documents\Visual Studio Projects\DueLastWeek\SlidingOpen.cpp(108) : error C2582: 'CTreeCtrl' : 'operator =' function is unavailable
-Steven Hicks
CPACodeProjectAddict
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Are you trying to receive a CTreeCtrl object or a pointer or reference? If it's the former, I doubt that'll work as the error message seems to indicate that the CTreeCtrl doesn't have a copy constructor. The function you're referring to probably returns a reference.
Cheers,
Tom Archer
Inside C#,
Extending MFC Applications with the .NET Framework
It's better to listen to others than to speak, because I already know what I'm going to say anyway. - friend of Jörgen Sigvardsson
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the function is the following:
CTreeCtrl& CParseDocument::BeginParseDocument(CString &m_strContents)
and its still throwing that error.
-Steven Hicks
CPACodeProjectAddict
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As I was alluding to, it returns a reference and you're trying to have it return to you an object. For example, the following would work:
<br />
CTreeCtrl& Gimme()<br />
{<br />
CTreeCtrl* t = new CTreeCtrl();<br />
return (CTreeCtrl&)t;<br />
}<br />
<br />
void Test()<br />
{<br />
CTreeCtrl& t = Gimme();<br />
}<br />
However, the following results in the error you mentioned:
<br />
void Test()<br />
{<br />
CTreeCtrl t;<br />
t = Gimme();<br />
}<br />
Cheers,
Tom Archer
Inside C#,
Extending MFC Applications with the .NET Framework
It's better to listen to others than to speak, because I already know what I'm going to say anyway. - friend of Jörgen Sigvardsson
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In a nutshell, the function you're calling is allocating a CTreeCtrl object and wants to pass you back a reference to it. However, you have your own CTreeCtrl object and want to - in effect - have the returned object copied into yours. You can't do that because the CTreeCtrl class doesn't define a copy constructor.
You have three choices.
1) Derive your own CTreeCtrl class and implement a copy constructor
2) Change the BeginParseDocument function
3) Change your application to accept a returned reference
Cheers,
Tom Archer
Inside C#,
Extending MFC Applications with the .NET Framework
It's better to listen to others than to speak, because I already know what I'm going to say anyway. - friend of Jörgen Sigvardsson
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(Steven Hicks)n+1 wrote:
C:\Documents and Settings\Steven Hicks\My Documents\Visual Studio Projects\DueLastWeek\SlidingOpen.cpp(108) : error C2582: 'CTreeCtrl' : 'operator =' function is unavailable
Tom's right. Your function is returning a CTreeCtrl& - you need to return a CTreeCtrl*
"Sucks less" isn't progress - Kent Beck [^]
Awasu 1.1.1 [^]: A free RSS reader with support for Code Project.
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Hi,
In my SDI application I want to use a splitter window and on the left side I want to use a Tree View and on the right side I want to have Form View and for different selection on the items of the Tree View, I want to show different Forms on the right view. How can I achieve this? Can anybody help me out with pointers on the above?
Thanks,
Binayak
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I have the following code concerning loading GDI+ Bitmap (PNG actually) of length len from buffer buf:
HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE, len);<br />
void *buf = hGlobal ? GlobalLock(hGlobal) : NULL;<br />
if(buf) CopyMemory(buf, CBaseItem::BFFile->Buf, len);<br />
else if(hGlobal) GlobalFree(hGlobal);<br />
<br />
IStream* stream = NULL;<br />
if(buf && CreateStreamOnHGlobal(buf, TRUE, &stream) == S_OK)<br />
{<br />
image = Bitmap::FromStream(stream);<br />
stream->Release();<br />
}
It works perfectly on XP, but it fails under Windows Millenium: image->LastResult == InvalidParameter. The data in a buffer seems the same in both cases.
Why is it so? 
Regards,
BB
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How do you extract an image from a wmv file? Any samples or possible ideas, i have looked at the windows media format sdk, but its not too easy to understand
Any help would be a real life saver!
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the function OleLoadPicture could do what you're searching for, coupled with a IPicture interface. Have a look to the sample 218972[^] from MSDN.
HTH,
K.
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Is there any way that I using code can add and remove users on Windows 2000 Server.
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Have a look at the Active Directory doc on MSDN, specifically the samples for creating a user [^].
Brad
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NetUserAdd worked for me.
"It was when I found out I could make mistakes that I knew I was on to something."
-Ornette Coleman
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Hi, need help!!
Does anybody know how to grab the data stream that goes to
the graphics card from windows and then on to a projector for example, or even how this works????
I presume that the data stream is going to come from the
windows desktop through win32.
Any ideas or links greatly appreciated!!
Cheers,
/Shane.
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This can not be done easily. Use a projector that has a vga input. If you are using a laptop it should have a vga connector and you should be able to use both on, or either on. Their should be a keyboard command for that.
John
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Hi,
Is there a method that will convert an float to a hex number?
Thanks.
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A "hex" number is how it is represented, not how it is stored (i.e., its type). All numbers have a base-16 representation, be they floating-point or integer. For example, if I had a number (12345) and I wanted to see its base-16 representation, I'd use:
int num = 12345;
char szNum[16];
sprintf(szNum, "%#x", num); szNum now contains "0x3039." No conversion was done, it's just shown in a different base.
See if these two MSDN articles help you along any:
Q42980
Q125056
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Thanks for the help.
Where can I find those articles, on the msdn.microsoft site?
Just to clarify: I am sending information from my program to someone else via the internet. I was told that the information has to be sent in hex format. So are you saying i can just send a float number?
Thanks for all your help
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Jay Hova wrote:
Where can I find those articles, on the msdn.microsoft site?
Yes.
Jay Hova wrote:
Just to clarify: I am sending information from my program to someone else via the internet. I was told that the information has to be sent in hex format. So are you saying i can just send a float number?
See this thread.
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Great... While I'm off, straining my tiny brain to come up with something that might just pass for helpful, you pop in with an easy solution. Sheesh!
"Welcome to Arizona!
Drive Nice - We're Armed..."
- Proposed Sign at CA/AZ Border
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I know the feeling.
http://www.codeproject.com/script/comments/forums.asp?forumid=1647&select=592740#xx592740xx
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I'm not sure what they're trying to say - "Hex format"? It could many several things.
The IEEE format for representing a floating point number is
S EEEEEEEE FFFFFFFFFFFFFFFFFFFFFFF
0 1 8 9 31
where S = the sign bit, EEEEEEEE = the exponent, and FFF...F = the fractional mantissa. In this format each bit has meaning, and on the receiving end the consumer has to expect and recognize this format. When you send it in hex, you're just sending bits in groups of 4, or
SEEE EEEE EFFF FFFF FFFF FFFF FFFF FFFF
Hex0 Hex1 Hex2 Hex3 Hex4 Hex5 Hex6 Hex7
It's up to the receiver to combine the 8 hex characters' bit pattern into a single 32-bit value and correctly interpret it as a floating point value.
On the other hand, if your application requires you to send text data only, using the ascii characters that represent the hex characters that are equivalent to your floating point value, you have a real challenge. First you'll have to convert the float into a collection of 4-bit chunks, then determine the hex character for each chunk, then convert each hex character to text. I wouldn't know how to begin that, I'm afraid, though almost everyone here is smarter than I about such things and may be able to guide you.
Hopefully you're dealing with the first case...
"Welcome to Arizona!
Drive Nice - We're Armed..."
- Proposed Sign at CA/AZ Border
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