|
hello i have add to my dialogBar one slider a i want to get the value of the slider when it move and i have add one variable RequiredCharacter :
void MyDialogBar::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) <br />
{<br />
if(pScrollBar)<br />
{<br />
CSliderCtrl * pSlider = (CSliderCtrl*)pScrollBar;<br />
<br />
if(pSlider->GetDlgCtrlID() == IDC_SLIDER1)<br />
{<br />
CString str;<br />
str.Format("%d", pSlider->GetPos());<br />
GetDlgItem(IDC_EDIT1)->SetWindowText(str);<br />
<br />
<br />
RequiredCharacter =pSlider->GetPos();<br />
<br />
<br />
}<br />
}<br />
CDialogBar::OnHScroll(nSBCode, nPos, pScrollBar); <br />
<br />
}<br />
<br />
and in App class i want to compare this value(of the slider when it move)
like this :
<br />
if(PtrDialogBar->RequiredCharacter > ptrScene->CharacterPos.size())<br />
{<br />
int amoun = PtrDialogBar->RequiredCharacter - ptrScene->CharacterPos.size();<br />
ptrScene->AddCharacter(amoun);<br />
}
PtrDialogBar is a pointer from the class when it was declared RequiredCharacter because it's note in the same class
CharacterPos it's a vector of structur
but it don't give any value when i scroll the slider ,can you hel me please?
|
|
|
|
|
 where can i get a list of identifyers like char, int, sizeof, or whatever ya call em
|
|
|
|
|
|
|
Hi,
Ok here is the situation:
I have a piece of code which needs to save debug dumps during runtime for that I use MiniDumpWriteDump() function in an __except() block, because I need to call GetExceptionInformation() to receieve EXCEPTION_POINTERS.I also need to catch CMemoryException but as you know for that I must use catch() instead of __except(). And if I use that I wouldn't be able to call GetExceptionInformation().
So my question is how can I catch CMemoryExcpetion in an __except block or alternatively, how can I receive EXCEPTION_POINTER in a catch() block?
Any help appreciated!!!
Rob
|
|
|
|
|
Use standard try and catch and resort to _set_se_translator to transform SEH exceptions into C++ exceptions, just like the following code shows:
class SEH_exception:public std::runtime_error
{
public:
SEH_exception(unsigned int code,const char* msg):std::runtime_error(msg),code_(code){}
unsigned int code()const{return code_;}
private:
unsigned int code_;
};
static void SEH_translator(unsigned int code,EXCEPTION_POINTERS*)
{
std::string msg;
switch(code){
case EXCEPTION_ACCESS_VIOLATION: msg="access violation";break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: msg="array bounds exceeded";break;
case EXCEPTION_BREAKPOINT: msg="breakpoint exception";break;
case EXCEPTION_DATATYPE_MISALIGNMENT: msg="datatype misalignment";break;
case EXCEPTION_FLT_DENORMAL_OPERAND: msg="flt denormal operand";break;
case EXCEPTION_FLT_DIVIDE_BY_ZERO: msg="flt divide by zero";break;
case EXCEPTION_FLT_INEXACT_RESULT: msg="flt inexact result";break;
case EXCEPTION_FLT_INVALID_OPERATION: msg="flt invalid operation";break;
case EXCEPTION_FLT_OVERFLOW: msg="flt overflow";break;
case EXCEPTION_FLT_STACK_CHECK: msg="flt stack check";break;
case EXCEPTION_FLT_UNDERFLOW: msg="flt underflow";break;
case EXCEPTION_ILLEGAL_INSTRUCTION: msg="illegal instruction";
case EXCEPTION_IN_PAGE_ERROR: msg="in page error";break;
case EXCEPTION_INT_DIVIDE_BY_ZERO: msg="divide by zero";break;
case EXCEPTION_INT_OVERFLOW: msg="overflow"; break;
case EXCEPTION_INVALID_DISPOSITION: msg="invalid disposition";break;
case EXCEPTION_NONCONTINUABLE_EXCEPTION: msg="noncontinuable exception";break;
case EXCEPTION_PRIV_INSTRUCTION: msg="priv instruction";break;
case EXCEPTION_SINGLE_STEP: msg="single step trap";break;
case EXCEPTION_STACK_OVERFLOW: msg="stack overflow";break;
default:{
char buf[1024];
sprintf(buf,"SEH exception (%x)",code);
msg=buf;
}
break;
}
throw SEH_exception(code,msg.c_str());
}
...
_set_se_translator(SEH_translator);
...
try{
...
}
catch(SEH_exception& e){
...
}
catch(CMemoryException& e){
...
}I guess you can modify the example given to suit your needs. Good luck.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
Thanks that helped alot!
|
|
|
|
|
Hi!
I've created an SDI application with a formview for its view. My formview is bigger than the screen, so I would like to add a vertical scrollbar.
Is there a way to automaticaly add a scrollbar to move the formview? If not, how to manualy add it?
Thks in advance!
Appstmd
http://www.appstmd.com
|
|
|
|
|
THe formview should have a scroll bar automatically. The onyl times it will not is if you are calling SetScrollSizeToFit() on the form view. Thsi function is used to set the x/y dimension of the form before a scroll bar appears. By default the size of the formview in the resource editor is used as the default size of the form. If the screen real-esatet is less then this then you get your scroll bars.
Roger Allen
Sonork 100.10016
Were you different as a kid? Did you ever say "Ooohhh, shiny red" even once? - Paul Watson 11-February-2003
|
|
|
|
|
Thks for your answer. But in fact, because I've got several views, my view is derived from CView and not from CFormView, and I manually add a dialog on the view. The user can choose another mode, and another dialog is displayed on the view.
Can I automatically display a scrollbar in this way?
Thks in advance!
Appstmd
http://www.appstmd.com
|
|
|
|
|
I am creating a control that has a treeview.
I am trying to capture the OnNotify with
NMHDR *phdr = (NMHDR *)lParam;
// Coming from listview?
if( phdr->code == NM_RCLICK )
MessageBox(NULL, "Right click found", "Click", MB_OK);
but i am only getting the calls when the mouse is clicked on the header, same goes for Double click, what am I doing wrong,
any help is really appreciated
shotgun
|
|
|
|
|
I assume you mean a list view, since a tree doesn't have a header.
WM_NOTIFY messages go to the parent of the control, so when you r-click the list, the message goes to the list's parent. This is why you get a message when you r-click the header; the message goes to the header's parent, which is the list.
--Mike--
Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber
"You have Erica on the brain" - Jon Sagara to me
|
|
|
|
|
I want to search through a directory and get all the files and subdirectories in it. I can't seem to get subdirectores using CFileFind, just files, so I was wondering if there was another way to do this.
Thanks
|
|
|
|
|
One solution is FindFirstFile() and FindNextFile(). Determine the file attribute to distinguish folders from files.
Kuphryn
|
|
|
|
|
I tried that and whenever it got a folder, and I tried to display the name of the folder, it was just a period. I'll give that another try though.
|
|
|
|
|
Yeah. Those functions could return periods, which indicate parent folder.
Kuphryn
|
|
|
|
|
Change the function you are using to scan through a folder to a recursive one. Whenever you encounter a folder, call that function again with the sub folder path. I have done this and it works.
|
|
|
|
|
Hi.
I have this class:
<br />
class CNetwork<br />
{<br />
public:<br />
void InitNetwork();<br />
DWORD WINAPI ListningForClients(LPVOID Arg1);<br />
void SendToClient(CLIENTS TheClient,char *Command);<br />
<br />
<br />
private:<br />
char ServerAddress[64];<br />
int ServerPort;<br />
struct hostent *ServerHost;<br />
int nReturn;<br />
<br />
SOCKET s; <br />
WSADATA wsda; <br />
SOCKET sListen, sClient;<br />
SOCKADDR_IN addr, RemoteAddress; <br />
};<br />
But I'm having some problems with the DWORD WINAPI ListingForClients call
DWORD WINAPI ListningForClients(LPVOID Arg1)<br />
{ <br />
......<br />
if (NumClientsConnected < MaxConnections)<br />
{<br />
CreateThread( NULL, 0, &ListningForClients, 0, 0, 0);<br />
}<br />
......<br />
}
This ofcourse calls itself, theirby creating a new thread..
But i'm getting this error when compiling.
CNetwork.cpp(42) : error C2276: '&' : illegal operation on bound member function expression
The function works when it's not incapsueled in a class!!
Thank for anyhelp.
|
|
|
|
|
Make ListningForClients static. For further info on callbacks over member functions, check Mike Dunn's C++ FAQ (top of this page), paragraph 6.1.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
Okay I tried to make it static. but now i get some errors:
example: illegal reference to data member 'CNetwork::sListen' in a static member function
Might I ask, what does Static do?
|
|
|
|
|
Well, Mike's FAQ explains it all, but I'll try to clear the issue up myself. Non-static members have, so to say, a hidden parameter pointing to the object the member function applies to (the this parameter, if you want to see it like that). After changing ListningForClients to static, the member function is no longer bound to any particular object via this, hence the error. This is what static means when applies to member functions: general functions not associated to particular instances of the class.
The way out of this problem is to use a callback paramter CreateThread provides just for this sort of things. In this parameter you can store a pointer to the relevant object and then use it accordingly. Pseudocode follows:
class CNetwork
{
...
static DWORD WINAPI StaticListeningForClients(LPVOID Arg1)
{
CNetwork* object=(CNetwork*)(Arg1);
object->ListeningForClients();
}
void ListeningForClients()
{
}
...
CreateThread( NULL, 0, &ListeningForClients, this, 0, 0);
};Hope you get the idea. Please read the FAQ for further clarification. Good luck.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
The problem is that you do not need to pass the Address of the the function ListenForClients, because ListenForClients as a symbol is already an address.
Just get rid of the ampersand.
CreateThread( NULL, 0, ListeningForClients, this, 0, 0);
|
|
|
|
|
How can I open an .exe file to see the actual code?
Alex
|
|
|
|
|
Use Visual Studio. Open as binary.
|
|
|
|
|
You can't see the actual code, just the machine language binary
numbers put out by the compiler/assembler/linker.
To get a better understanding of what's inside an exe file,
see the following article by Matt Pietrek:
http://msdn.microsoft.com/msdnmag/issues/02/02/PE/default.aspx
http://msdn.microsoft.com/msdnmag/issues/02/03/PE2/default.aspx
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
