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I use CImage class for working with bitmaps and noticed memory leak and can't understand the problem.
When i'm trying to change the content of bitmap by accessing the bytes - in different cases i see or not see memory leaks, however the code is same!
Here is the code:
<br />
UINT __cdecl CGNTGDALDlg::GNTClassificationFunction( LPVOID pParam )<br />
{<br />
ThreadStruct* pStruct = (ThreadStruct*)pParam;<br />
int n = pStruct->pDlg->m_Image.GetHeight();<br />
int m = pStruct->pDlg->m_Image.GetWidth();<br />
int LineLength = pStruct->pDlg->m_Image.GetPitch();<br />
unsigned char* Bitmap = (unsigned char*)pStruct->pDlg->m_Image.GetBits();<br />
Bitmap+=LineLength*pStruct->Offset;<br />
if(pStruct->pDlg->m_floatingWindowSize==0)<br />
{<br />
__declspec(align(16)) float* pInputs =(float*) _aligned_malloc(pStruct->pDlg->m_poDataset->GetRasterCount()*sizeof(float),16);<br />
for(int i =pStruct->Offset;i<pStruct->End;i++)<br />
{<br />
for(int j = abs(LineLength%m),l=0;j<m*3,l<m;j+=3,l++)<br />
{<br />
double distance;<br />
CGNTNeuron* pNeuron;<br />
double Norm = 0;<br />
for(int k = 0;k<pStruct->pDlg->m_poDataset->GetRasterCount();k++)<br />
{<br />
pInputs[k] = pStruct->pDlg->m_pImageMatrix[k][i][m-l-1];<br />
Norm+=pInputs[k];<br />
}<br />
Norm = sqrt(Norm);<br />
for(int k = 0;k<pStruct->pDlg->m_poDataset->GetRasterCount();k++)<br />
pInputs[k]/=Norm;<br />
EnterCriticalSection(&pStruct->pDlg->m_CriticalSection);<br />
unsigned int value = pStruct->pDlg->m_pGNTNet->Propagate(pInputs,distance,&pNeuron); <br />
LeaveCriticalSection(&pStruct->pDlg->m_CriticalSection);<br />
<br />
*(Bitmap-LineLength-j-1) = GetRValue(value);
*(Bitmap-LineLength-j-2) = GetGValue(value);
*(Bitmap-LineLength-j-3) = GetBValue(value);
}<br />
Bitmap+=LineLength;<br />
}<br />
_aligned_free(pInputs);<br />
}<br />
else<br />
{<br />
__declspec(align(16)) float* pInputs =(float*) _aligned_malloc(pStruct->pDlg->m_floatingWindowSize*pStruct->pDlg->m_floatingWindowSize*pStruct->pDlg->m_poDataset->GetRasterCount()*sizeof(float),16);<br />
for(int i =pStruct->Offset;i<pStruct->End;i++)<br />
{<br />
if(i<pStruct->pDlg->m_poDataset->GetRasterYSize()-pStruct->pDlg->m_floatingWindowSize)<br />
for(int j = abs(LineLength%m),l=0;j<m*3,l<m;j+=3,l++)<br />
{<br />
if(l<pStruct->pDlg->m_poDataset->GetRasterXSize()-pStruct->pDlg->m_floatingWindowSize)<br />
{<br />
double distance;<br />
CGNTNeuron* pNeuron;<br />
int ll = 0;<br />
double Norm = 0;<br />
for(int k = 0;k<pStruct->pDlg->m_poDataset->GetRasterCount();k++)<br />
for(int ii = i;ii<i+pStruct->pDlg->m_floatingWindowSize;ii++)<br />
for(int jj = l;jj<l+pStruct->pDlg->m_floatingWindowSize;jj++)<br />
{<br />
pInputs[ll++] = pStruct->pDlg->m_pImageMatrix[k][ii][m-jj-1];<br />
Norm+=pStruct->pDlg->m_pImageMatrix[k][ii][m-jj-1]*pStruct->pDlg->m_pImageMatrix[k][ii][m-jj-1];<br />
}<br />
Norm = sqrt(Norm);<br />
for(int k = 0;k<pStruct->pDlg->m_poDataset->GetRasterCount()*pStruct->pDlg->m_floatingWindowSize*pStruct->pDlg->m_floatingWindowSize;k++)<br />
pInputs[k]/=Norm;<br />
EnterCriticalSection(&pStruct->pDlg->m_CriticalSection);<br />
unsigned int Value = pStruct->pDlg->m_pGNTNet->Propagate(pInputs,distance,&pNeuron); <br />
LeaveCriticalSection(&pStruct->pDlg->m_CriticalSection);<br />
*(Bitmap-LineLength-j-1) = GetRValue(Value);
*(Bitmap-LineLength-j-2) = GetGValue(Value);
*(Bitmap-LineLength-j-3) = GetBValue(Value);
<br />
}<br />
}<br />
Bitmap+=LineLength;<br />
}<br />
_aligned_free(pInputs);<br />
}<br />
return 0;<br />
}<br />
<br />
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I'll try to help but I can't read your posted code.
Can you wrap it in "pre" tags instead of "code" tags?
How do you know there's a leak? How are you checking?
Mark
"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder
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Here is code in pre tags
UINT __cdecl CGNTGDALDlg::GNTClassificationFunction( LPVOID pParam )
{
ThreadStruct* pStruct = (ThreadStruct*)pParam;
int n = pStruct->pDlg->m_Image.GetHeight();
int m = pStruct->pDlg->m_Image.GetWidth();
int LineLength = pStruct->pDlg->m_Image.GetPitch();
unsigned char* Bitmap = (unsigned char*)pStruct->pDlg->m_Image.GetBits();
Bitmap+=LineLength*pStruct->Offset;
if(pStruct->pDlg->m_floatingWindowSize==0)
{
__declspec(align(16)) float* pInputs =(float*) _aligned_malloc(pStruct->pDlg->m_poDataset->GetRasterCount()*sizeof(float),16);
for(int i =pStruct->Offset;i<pStruct->End;i++)
{
for(int j = abs(LineLength%m),l=0;j<m*3,l<m;j+=3,l++)
{
double distance;
CGNTNeuron* pNeuron;
double Norm = 0;
for(int k = 0;k<pStruct->pDlg->m_poDataset->GetRasterCount();k++)
{
pInputs[k] = pStruct->pDlg->m_pImageMatrix[k][i][m-l-1];
Norm+=pInputs[k];
}
Norm = sqrt(Norm);
for(int k = 0;k<pStruct->pDlg->m_poDataset->GetRasterCount();k++)
pInputs[k]/=Norm;
EnterCriticalSection(&pStruct->pDlg->m_CriticalSection);
unsigned int value = pStruct->pDlg->m_pGNTNet->Propagate(pInputs,distance,&pNeuron);
LeaveCriticalSection(&pStruct->pDlg->m_CriticalSection);
*(Bitmap-LineLength-j-1) = GetRValue(value);
*(Bitmap-LineLength-j-2) = GetGValue(value);
*(Bitmap-LineLength-j-3) = GetBValue(value);
}
Bitmap+=LineLength;
}
_aligned_free(pInputs);
}
else
{
__declspec(align(16)) float* pInputs =(float*) _aligned_malloc(pStruct->pDlg->m_floatingWindowSize*pStruct->pDlg->m_floatingWindowSize*pStruct->pDlg->m_poDataset->GetRasterCount()*sizeof(float),16);
for(int i =pStruct->Offset;i<pStruct->End;i++)
{
if(i<pStruct->pDlg->m_poDataset->GetRasterYSize()-pStruct->pDlg->m_floatingWindowSize)
for(int j = abs(LineLength%m),l=0;j<m*3,l<m;j+=3,l++)
{
if(l<pStruct->pDlg->m_poDataset->GetRasterXSize()-pStruct->pDlg->m_floatingWindowSize)
{
double distance;
CGNTNeuron* pNeuron;
int ll = 0;
double Norm = 0;
for(int k = 0;k<pStruct->pDlg->m_poDataset->GetRasterCount();k++)
for(int ii = i;ii<i+pStruct->pDlg->m_floatingWindowSize;ii++)
for(int jj = l;jj<l+pStruct->pDlg->m_floatingWindowSize;jj++)
{
pInputs[ll++] = pStruct->pDlg->m_pImageMatrix[k][ii][m-jj-1];
Norm+=pStruct->pDlg->m_pImageMatrix[k][ii][m-jj-1]*pStruct->pDlg->m_pImageMatrix[k][ii][m-jj-1];
}
Norm = sqrt(Norm);
for(int k = 0;k<pStruct->pDlg->m_poDataset->GetRasterCount()*pStruct->pDlg->m_floatingWindowSize*pStruct->pDlg->m_floatingWindowSize;k++)
pInputs[k]/=Norm;
EnterCriticalSection(&pStruct->pDlg->m_CriticalSection);
unsigned int Value = pStruct->pDlg->m_pGNTNet->Propagate(pInputs,distance,&pNeuron);
LeaveCriticalSection(&pStruct->pDlg->m_CriticalSection);
*(Bitmap-LineLength-j-1) = GetRValue(Value);
*(Bitmap-LineLength-j-2) = GetGValue(Value);
*(Bitmap-LineLength-j-3) = GetBValue(Value);
}
}
Bitmap+=LineLength;
}
_aligned_free(pInputs);
}
return 0;
}
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As long as you are freeing memory you allocate you should be fine.
The task manager isn't always a great leak detector. Memory allocated for your process may
be marked as available to the application but not freed until it's necessary - for performance.
Trust your code 
The debug C runtime (CRT) will show leaks at runtime for malloc, _aligned_malloc, new, etc.
Mark
"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder
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Ok! Thank You very much for participating.
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hi,
I am using the following code to send a string to the notepad, without direct keyboard input(using SendInput function):
//start of code
CString str(_T("D:\\sample.gho"));
INPUT key[2];
int nLeng = str.GetLength();
for(int index=0;index < nLeng;index++ )
{
::ZeroMemory(key, sizeof(key));
key[0].type = key[1].type = INPUT_KEYBOARD;
SHORT nKeyCode = VkKeyScan(str[index]);
if (VK_SHIFT & nKeyCode)
{
key[0].ki.wVk = VK_SHIFT;
key[0].ki.dwFlags = KEYEVENTF_KEYUP;
//shift key plus char
key[1].ki.wScan = str[index];
key[1].ki.dwFlags = KEYEVENTF_UNICODE ;
}
else if (VK_CAPITAL & nKeyCode)
{
key[0].ki.wVk = VK_CAPITAL;
key[0].ki.dwFlags = KEYEVENTF_KEYUP;
//capital key plus char
key[1].ki.wScan = str[index];
key[1].ki.dwFlags = KEYEVENTF_UNICODE ;
}
else
{
key[1].ki.wVk = nKeyCode;
key[1].ki.dwFlags = KEYEVENTF_UNICODE ;
}
key[0].ki.time = key[1].ki.time = 0;
key[0].ki.dwExtraInfo = key[1].ki.dwExtraInfo=0;
SendInput(2,key,sizeof(INPUT));
}
//end of code
But, unfortunately, I gets an error:
'KEYEVENTF_UNICODE' : undeclared identifier
Please help me.
Thanks in advance.
SYAMLAL
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MSDN say, that KEYEVENTF_UNICODE used for Windows 2000/XP only.
In winuser.h you can see
#if(_WIN32_WINNT >= 0x0500)
#define KEYEVENTF_UNICODE 0x0004
#define KEYEVENTF_SCANCODE 0x0008
#endif /* _WIN32_WINNT >= 0x0500 */
So, if you are realy in Win2000 or XP...
Look in file stdafx.h.
I work in XP, and I have next line in stdafx.h :
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0400
See? Change this on
#define _WIN32_WINNT 0x0500
#endif
May be it'll help for you
Best regards,
Baron
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Thanks a lot.
Actually
#define KEYEVENTF_UNICODE 0x0004
#define KEYEVENTF_SCANCODE 0x0008
these lines were not present in my winuser.h file.
So I added these in that file, and the application is now working fine.
Once again,,thanx
SYAMLAL
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hi my project is obut proming with port usb .plz explain obut it.tanks
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Click here[^]
Nobody can give you wiser advice than yourself. - Cicero
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Hi,
I have a text file which its contents in has to be loaded into an array. The content in the.txt file has some spaces between them and it is also a few lines long(separated by '\n'). May i know how to copy the whole file into an array?
Thank you for any help.
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i'd suggest you to turn to C++ solutions instead of sticking to C.
by the way :
char pszBuffer[NUMBER_LONG_ENOUGH];
::fscanf(myOpenedFile, "%s", pszBuffer);
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I can't use this method, somehow the character save in the file turns out to be in funny shapes and not the ones i input. Below is the code i used.
FILE *stream;
stream = fopen( "Result File.txt", "w+" );
char pszBuffer[500]; ::fscanf(stream, "%s", pszBuffer);
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hey, you open the file writable, not readable... 
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sorry mistakes, just a beginner...
but if i change w to r,it still does not help. btw, i need to put it in array of characters for it to work.
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You can use ifstream for that purpose. You can extract formatted data from the stream by using the extraction operator ( >> ).
ifstream myFile("MyFile.txt);
int iValue;
myFile >> iValue;
See here[^] for more info.
EDIT: when looking at toxcct answer, I'm wondering: your file contains only pure text that you want to load into a string or does it contain numeric values that you want to load into an array (like an integer array) ?
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i want get characters from the file and put it in one array. Can i use getline or other functions. This array must be able to save the file content exactly because i want to use the array to save it in another file at a specified location or path.
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Try using CString.
Regards,
Paresh.
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#include <fstream>
#include <vector>
using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{
ifstream f;
vector<char> vec;
f.open("test.test");
while(true)
{
char ch;
f.get(ch);
if(f.eof())
break;
if (ch != ' ' && ch != '\n')
vec.push_back(ch);
}
int size = vec.size();
char *arr = new char[size];
memset(arr, 0, size);
for (int c = 0; c < size; c++)
{
arr[c] = vec[c];
}
f.close();
delete arr;
return 0;
}
Best regards,
Baron
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what are you trying to do with all these lines of code ?
the OP only wants to read his file in a buffer !
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"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder
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It seems to generate these error:
error C2146: syntax error : missing ';' before identifier 'vec'
C:\ error C2065: 'vec' : undeclared identifier
C:\: error C2228: left of '.push_back' must have class/struct/union type
C:\ : error C2228: left of '.size' must have class/struct/union type
C:\) : error C2109: subscript requires array or pointer type
Error executing cl.exe.
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have you that:
#include <fstream>
#include <vector>
using namespace std;
Best regards,
Baron
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sorry, forgot about html...
must be included next files :
<fstream.h> and <vector>
Best regards,
Baron
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i tried to put #include <vector> but the same error occurs. I'm using MSVC6
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