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after i finish copy the .dll file into specific directory...
i wil go to next step which set up the directory..i have found dificuties on its..
where shoud i start set the including and lib directory??
when i open the project setting, i found that there may not have --->Link--->Object ???
hope can giv me a perfect solution on its...;P
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I used Visual Memory Leak in my code and it has reported memory leak from files having this code. Can anyone give information as to whether these codes can lead to memory leak or not
************************************
case 1
************************************
sub_code = (char *) calloc(5,sizeof(char));
if(f_decimal_value !=0 )
{
free(sub_code);
sub_code = (char *) calloc(3,sizeof(char));
//additional code here
free(sub_code);
}
else
{
free(sub_code);
sub_code = (char *) calloc(3,sizeof(char));
//additional code here
free(sub_code);
}
*********************************************
case 2
**********************************************
sub_code = (char *)calloc(3,sizeof(char));
char2str(2,sub_code)
if(strcmp(sub_code,"00") == 0)
{
free(sub_code);
//additional code here
}
else if(strcmp(sub_code,"01") == 0)
{
free(sub_code);
//additional code here
}
else if(strcmp(sub_code,"10") == 0)
{
free(sub_code);
//additional code here
}
else if (strcmp(sub_code,"11") == 0)
{
free(sub_code);
//additional code here
}
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The bits you leave out are the bits we need to see!
For example, in the first example the code that's missing and commented with "//additional code here" could cause a leak if:
- It returns.
- It stomps on the pointer value in sub_code without seeing that it's freed.
- It throws an exception.
Steve
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Case 2 could lead to a leak because your "else if" chain has no final else clause. If none of the conditions apply, sub_code will never be freed.
You could just add at the end
else
free(sub_code);
and that would take care of it.
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Can anyone help me to create a tree view after parsing a file
ie from the file dialog when we open a file, it should be loaded in to a tree structure. Also i want to save the items in the tree in to a file.
syam.
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Do you want to pasre a xml file and what does mean "create a tree view after parsing a file" ?
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To parse the file and with the items obtained build the tree structure..........
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Hi all, am writing a program in embedded VC++...
am new to programming so i need some help with a little thing..
i have a form that the user will input a hex value (memory address) and my program will copy this value to a pointer.. but it just isn't working. here is my code
DWORD *pDUMMY;
TCHAR sztTmp[10];
GetDlgItemText(hwndDlg, IDC_EDT_NAME,sztTmp, 10);
pDUMMY=(DWORD *)(sztTmp); //this line needs some editing
example: user enters 0x8fff42a2
should equal pDUMMY = (DWORD *) (0x8fff42a2)
sorry for the stupid question.. i'm helpless...
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pDUMMY = _tcstoul( sztTmp, NULL, 0 );
passing the 0 means that if the string starts with 0x then it's assumed to be hex, if it starts with 0 and not an x then it's assumed to be octal, and otherwise it's assumed to be a decimal value so it's rather flexible.
you can pass 16 instead if you always assume the value is hexadecimal.
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Rick York wrote: pDUMMY = _tcstoul( sztTmp, NULL, 0 );
actually you have to do
*pDUMMY = _tcstoul( sztTmp, NULL, 0 );
note the pointer dereference operator.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
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It works.... haha!... thank you guys, you saved me!!!
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can any one give me the difference between lib and dll in detail?
"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India
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Static library is a lib, while a dynamic library is a DLL.
The problem with libs is that they limit the user to a specific compiler. Where as DLL are more flexible. When using libs a programmer never has to be in a worry of that .lib file being present on the user's machine while dll's impose such dependencies.
Somethings seem HARD to do, until we know how to do them.
 _AnShUmAn_
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.lib files help up match up the actuall library(.DLL) It's called implicit linking. .lib files get created when you export functions using .DEF file. Once done you can include this .lib file in your application and start using the DLL as if it's available in a .cpp file. (implementation). The .lib file takes care of mathing the call to the dll.
Press: 1500 to 2,200 messages in just 6 days? How's that possible sir?
Dr.Brad :Well,I just replied to everything Graus did and then argued with Negus for a bit.
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hi,
Anybody knows how to add a string in front of another string and also at the back of the string. Here is the code that generate unhandled exception and access violation error.
Thanks for any reply.
{ char myfilename[15];
char Pathn[20]="";
strcat(Pathn,"c:/My File/");
int coord;
fSrc>>myfilename;
for(int l=0;l<6;l++)
{
testIC[l]=ICname[l];
}
strcat( ICname, " output.txt" );
strcat(Pathn,ICname);
outputfile=("%s",Pathn);}
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It's obvious that Pathn is not large enough.
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Don't use raw char arrays without a compelling reason to do so. Use std::string instead.
Steve
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if its problem with std::string...........try to use this
_tcscat(ICname, " output.txt") also increase the array size or dynamically create the array........
syam
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Sorry for such a simple question im sure, but how does a person make sure data types are correct for creating an easy robust program.
code : cout << "Enter number of terms" << endl;
cin >> terms;
I want to make sure terms is an Interger type, can i do that with an if statment?
if (terms = ?(some function call))
or is there another way to code to make sure what is entered is an Integer and not a character or string value?
If at first you don't succeed .... DENY EVERYTHING!
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Lasoryth wrote: or is there another way to code to make sure what is entered is an Integer and not a character or string value?
There are several functions you can call that will tell you. Check out isdigit() and isalpha().
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hi All,
I was hoping someone might be able to lead me to some information regarding the screensaver settings. I have been tasked with implementing some functionality to programmatically set the Screensaver timeout period as well as ensure the "On resume, password protect" option under the Desktop->Properties.
I found what I think is a simple way to set the timeout period, utilizing the SystemParametersInfo call. It seems straight-forward, just make the following call:
SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 30*60, NULL, SPIF_SENDWININICHANGE);
Now the problem - I need to be able to uncheck the "On resume..." option, which I cannot seem to find a way to do.
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Al_Pennyworth wrote: Now the problem - I need to be able to uncheck the "On resume..." option, which I cannot seem to find a way to do.
Have you checked the registry?
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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i'm quite new to mfc/c++ and i'm trying to create a really simple dialog box which controls the master volume of a simple form view application.. i've created the dialog and the variables to control the master volume in the form class (i've tested by creating a control in the form view and this works fine) but when i try to access and alter the form parameter from the dialog using a pointer and GetParent() during OnTimer(), it just does nothing... am i missing something?
thanks in advance
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bimgot wrote: am i missing something?
Just a WAG: UpdateData()
led mike
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have tried UpdateData()
does the dialog class require any settings in order to access the parent variables? i've even tried just very simple variable tests in OnTimer in the dialog class and it seems to have no effect on them.. is OnTimer even the right function to be using? i use it in the main form for a simelar process so i figured it would be but perhaps its different for dialogs?
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