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I currently have an array filled with int values from 0 to 255, but I need to pass this array into a function that takes double. So my problem is I can't convert the int array of values 0 to 255 to a double array...I've tried cast and even just defining that original int array as a double. all I get is my data being turned to some very large negative values.
Is there a way ard this?
Thnx.
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I think you've castet only the pointer.
You will have to make an new array and then cast every value into the new array.
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You'd like to think it to be as simple as:
int nNumbers[5] = {2, 8, 8, 7, 0};<br />
double dNumbers[5];<br />
memcpy(dNumbers, nNumbers, sizeof(nNumbers));
but since a double is not the same size as an int, this isn't going to work.
It'll take a few more lines of code, but you'll need something like:
for (int x = 0; x < 5; x++)
dNumbers[x] = nNumbers[x];before calling the function.
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Does anyone know how to write a service to forbid execution of a specified application (ie maybe ???)
Thanks for all.
Lionel
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I don't think it is possible to forbid an application from executing. Allthough I know that in XP there is something ( group policies I think ) where you can block certain applications.
What you could do if you want to block an application is use a system-wide hook in a dll and check when a window is created. From that window you can easily get the executable's name and end the process if you don't want it to run...
Don't think you are, know you are...
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If the application in question is on an NT-type box, you can alter the security/permissions of it so that only certain users/groups can execute it. When your service tries to execute the application, it will error out accordingly.
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to hanlde all different formats from around the world
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I'm not sure to have understood your request well. If you want to display a date in a localized format, have a look to the class COleDateTime, and the member function COleDateTime::Format.
All my life, who am I?
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i want to show my window which is derived from CWnd in the button clicked event .the following is my code
void CTmp_dlgDlg::OnButton1()
{
RECT rect;
CString str;
GetWindowRect(&rect);
CMyWnd *mywnd = new CMyWnd;
str = AfxRegisterWndClass( 0);
int ret=myWnd->Create (str,"text",WS_VISIBLE|WS_CHILD,rect,this,1234);
mywnd->ShowWindow (SW_SHOW);
}
CMyWnd::CWnd
but i can't show the window,why?
gucy
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Try
void CTmp_dlgDlg::OnButton1()
{
RECT rect;
CString str;
GetWindowRect(&rect);
ScreenToClient(&rect);
CMyWnd *mywnd = new CMyWnd;
str = AfxRegisterWndClass( 0);
int ret=myWnd->Create (str,"text",WS_VISIBLE|WS_CHILD,rect,this,1234);
mywnd->ShowWindow (SW_SHOW);
}
rechi
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it do not work at all
gucy
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How CMyWnd looks like? I made a test wich draws a line on WM_PAINT and worked just fine.
rechi
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the app the a dialog based app.
i clicked the button on the dialog. nothing changed.
i think it would have pop out a window.
Can i mail the source to you?
gucy
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gucy wrote:
Can i mail the source to you?
 Give it to me!
rechi
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but i can't access your email address!
gucy
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I sent you a mail...
rechi
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Hi,
I have a CArray - m_array < STRUCT1, STRUCT1 > and I want put his to the CMap < DWORD, DWORD, m_array, m_array >. How to make this?
Best regards,
Eugene Pustovoyt
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The simple answer is you can't, not directly. CArray does not have a copy constructor or assignment operator, so it won't work. There are a couple of workarounds however.
1. Make a class that has the array as a member, and define copy constructors and assignment operators that copy the array elements.
2. Derive a class from CArray and implement the copy constructor and assignment operator, and use this class with the map.
I would choose the second option - it is still a CArray, rather than having to go through another class.
Hope this helps,
Ryan
Being little and getting pushed around by big guys all my life I guess I compensate by pushing electrons and holes around. What a bully I am, but I do enjoy making subatomic particles hop at my bidding - Roger Wright (2nd April 2003, The Lounge)
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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Thanks.
Best regards,
Eugene Pustovoyt
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You're welcome
Ryan
Being little and getting pushed around by big guys all my life I guess I compensate by pushing electrons and holes around. What a bully I am, but I do enjoy making subatomic particles hop at my bidding - Roger Wright (2nd April 2003, The Lounge)
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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Another option (the MFC way) is to use the MFC collection classes, which can be nested this way. EX:
CMapWordToOb oMap;
CObArray *pArray = new CObArray;
pArray->Add(..);
oMap.SetAt(KeyValue,pArray);
The bonus of doing this in this way is that it is directly Serializable.
onwards and upwards...
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Yes, but he said he wanted to put a CArray in a CMap, not a CArray*  (yes, I know it's pedantic )
basementman wrote:
The bonus of doing this in this way is that it is directly Serializable.
Good point. I didn't think of that
Ryan
Being little and getting pushed around by big guys all my life I guess I compensate by pushing electrons and holes around. What a bully I am, but I do enjoy making subatomic particles hop at my bidding - Roger Wright (2nd April 2003, The Lounge)
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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 Hi all,
I am in desperate need to know the dynamic IP allocated to a user when he browses by the ISP, also I want to know the Browser Language..can anyone show me some pointers or ideas or tutorials to do this..any sort of help is highly appreciated...Thanks a lot in advance...
Himanshu
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Here is a code snippet that may be called more than once. The first time will return how many NET I/O addresses are available, a second call may nominate which of the available IP addresses to return. Hope this helps...
cheers
WillB
//*****************************************************************
//** **
//** **
//** **
//** G E T H O S T N A M E **
//** **
//** **
//** **
//*****************************************************************
int MNF_GetHostIPAddress( CString & rszHostName,
CString &rszHostIPAddress,
int nIPSelection)
{
int nIPCount = 0;
in_addr **papIPAddressList;
HOSTENT *ptHostEnt = NULL;
rszHostIPAddress = "";
// ---> ----------------------- <---
// ---> Discover IP address(es) <---
// ---> ----------------------- <---
ptHostEnt = gethostbyname( rszHostName );
if ( ptHostEnt != NULL )
{
papIPAddressList = (in_addr **)&ptHostEnt->h_addr_list[ 0 ];
// ---> ----------------------- <---
// ---> Count the IP Addressess <---
// ---> ----------------------- <---
while ( papIPAddressList[ nIPCount ] != NULL )
{
nIPCount++;
}
if ( nIPSelection < nIPCount )
{
rszHostIPAddress = inet_ntoa( *papIPAddressList[ IPSelection ] );
}
}
return nIPCount;
}
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Thanks for the code snippet..but I guess it doesnt work properly, as we will have to pass some arguments..I dont want to pass any prguments into it and want to know the IP address of the machine assigned by the ISP. Not the local IP I can do that. How to get the ISP provided IP. Please help.Any help or pointers are appreciated..
Thanks in advance.
Himanshu
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