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laphijia wrote:
CDataForm *pData;
pData = new CDataForm;
pData->m_editAddress.SetWindowText("st James Street");
delete pData;
Aren't you deleteing the form too soon?
And when exactly does the error occur?
Best regards,
Alexandru Savescu
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void CFirstForm::OnBnClickedBtnSelect()
{
// TODO: Add your control notification handler code here
CDataForm *pData;
pData = new CDataForm;
pData->GetLocalData(50);
delete pData;
}
Even if I don't delete the pointer it's just the same.
The error happens when I click the SelectButton in the FirstForm.
When I click the Select Button, it should modify the text in the edit controls in the SecondForm.
How can I achieve this?
I tried also to add a function that in the CSecondForm class, that modifies the controls, and call it, passing the parameters in the void CFirstForm::OnBnClickedBtnSelect(), but I receive the error non-static function callin a static function or viceversa.
"Nelle cose del mondo non e' il sapere ma il volere che puo'."
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pData = new CDataForm;
pData->m_editAddress.SetWindowText("st James Street");Altough pData is constructed when you call m_editAddress.SetWindowText on it, its underlying window does not yet exist. Try calling pData->Create(...) first.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Joaquín M López Muñoz wrote:
Altough pData is constructed when you call m_editAddress.SetWindowText on it, its underlying window does not yet exist. Try calling pData->Create(...) first.
What does this means?
How I call the Create() function, there is a tutorial or can you help me?
"Nelle cose del mondo non e' il sapere ma il volere che puo'."
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Hello,
I have defined a pointer to a function that returns int and receives 3 doubles like this:
<pre>
typedef int ( *fptr)(double tp, double etc, double atd);
</pre>
And I have declared one function of the type above named f1.
I want to hold a map of CString and pointers to functions so I declared like this:
map <CString, fptr> MyMap;
MyMap.insert (pair <CString, fptr> ("aaa", f1); // error here
and the error is
pair<class CString,int (__cdecl*)(double,double,double)>::pair<class CString,int (__cdecl*)(double,double,double)>' : none of the 2 overloads can convert parameter 2 from type 'int (doub
le,double,double)'
Best regards,
Alexandru Savescu
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try : MyMap.insert (pair ("aaa", &f1));
-c
Cheap oil. It's worth it!
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Thanks it worked.
It was obvious! 
Best regards,
Alexandru Savescu
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Hi,
I'm doing something similar, but i don't have luck 
<br />
typedef bool (*func)(CClient *, CPacketBase *);<br />
typedef std::map<long, func> CHandlerMap;<br />
and I declared a function called
<br />
bool CPacketHandler::prcLogin(CClient *pclt, CPacketBase *pak)<br />
{<br />
....<br />
return true;<br />
}<br />
I tried to insert the function into the map like:
<br />
m_HandlerMap.insert(CHandlerMap::value_type(1001, &prcLogin));<br />
The error I got is :
error C2276: '&' : illegal operation on bound member function expression
Error executing cl.exe.
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The member function has to be static.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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I tried, but still the same.
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Alexpro wrote:
MyMap.insert (pair ("aaa", f1); // error here
and the error is
Be more type specific than pair(..)
Use this statement-
MyMap.insert(MyMap.value_type("aaa",f1));
HTH
Vivek
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hi, i have a CEdit control and I want to change the default scrollbars colour. i also do not want it to have the Winxp style on windows xp, but do not know how to do this.
My control is binded to a class called ECEdit, which is derived from CEdit, I want to put the code for he scrollbar in ECEdit.
==================================================
When Your Mind Wonders...Where Does It Go???
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Someone could advise a good math or 3D book , considering that my math is weak (I didn't give a damn on college) .
It have to prepare me to do full blow 3d programming and learning first the basics then the more advanced math concepts.
Anyone had read these this books ? Are they good ?
Mathematics for 3D Game Programming & Computer Graphics
3D Graphics Programming: Games and Beyond
Thanks
Cheers,
Joao Vaz
A person who is nice to you, but rude to the waiter, is not a nice person - Natalie Portman (Padme/Amidala of Star Wars)
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I have read 3D Graphics Programming: Games and Beyond, but i don't think that i really got anything usefull from it.
I also read the much too tiny chapter on 3D in the "black art of Java Game Programming", and it actually gives a better overall description to get you started (and it has an OOP view as opposed to the other book which uses C).
But what really helped was the tutorials in basic vector math that my girlfriend paced me through, and these links:
http://chortle.ccsu.ctstateu.edu/vectorLessons/vectorIndex.html
and
http://members.tripod.com/gamecode/tut/
The first link is the best tutorial on math that i ever saw besides my girlfriends tutorial (and you can't have her, she's MINE!).
The second link points to some implementation guides that are only helpfull when you understand the basics.
Some books tell you that "it really isn't nescessary to understand the math behind this, just use the formulas in good health", don't buy it!.
When you understand the math your'e seeing it all so much clear.
"It could have been worse, it could have been ME!"
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Thanks Jansen for the links, they appear to be cool 
jan larsen wrote:
I have read 3D Graphics Programming: Games and Beyond, but i don't think that i really got anything usefull from it.
Risking this book from the wishlist ... next ...
jan larsen wrote:
besides my girlfriends tutorial (and you can't have her, she's MINE!).
You jealous guy 
jan larsen wrote:
When you understand the math your'e seeing it all so much clear.
Yeap, that was my intention , to really understand the math , I don't like books that throw things at me without explanation ...
Thanks again , Jansen
Cheers,
Joao Vaz
A person who is nice to you, but rude to the waiter, is not a nice person - Natalie Portman (Padme/Amidala of Star Wars)
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Foley and Van Damme's book on graphics is one of the standards. it does 2d, 3d, ray tracing, fractals, etc..
-c
Cheap oil. It's worth it!
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Chris Losinger wrote:
Foley and Van Damme's book on graphics is one of the standards
Okay , it so appears
Adding it to wishlist .... done ... 100% processed
Thanks Chris
Cheers,
Joao Vaz
A person who is nice to you, but rude to the waiter, is not a nice person - Natalie Portman (Padme/Amidala of Star Wars)
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LONG first = 1022230205L;
LONG second = 1000L;
LONG third = first * second;
cout << third << endl;
This should result in 1022230205000 but it returns 27988552 instead. Am I missing something here?
I've tried DWORD also, same result.
[VISUAL STUDIO 6.0] [MFC] [WIN98/2]
 Bluute tette!
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The largest LONG is 2147483647, so your calculation causes an overflow.
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Could be something like that. But I've tried DWORD as well.
I thought that the maximum was 9.223.372.036.854.775.807
The maximum you gave is for integers, no?
Can a long be negative?
[VISUAL STUDIO 6.0] [MFC] [WIN98/2]
Bluute tette!
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The maximum value of a DWORD is 4,294,967,295. You're having an overflow.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Sorry guys.
I've noticed that a long only uses 4 bytes.
I'm a java programmer and a long is 8 bytes in java 
[VISUAL STUDIO 6.0] [MFC] [WIN98/2]
Bluute tette!
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why have you put an L at the end of the numbers? could that be the problem?
==================================================
When Your Mind Wonders...Where Does It Go???
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If you don't put the L, the compiler assumes that's an integer. We add the L to reserve a bigger memzone.
[VISUAL STUDIO 6.0] [MFC] [WIN98/2]
Bluute tette!
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oh...didnt know that
==================================================
When Your Mind Wonders...Where Does It Go???
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