ReadProcessMemory()

Yes it compiles and its coming to where i want!
I want to capture size of memory of this process created, but now it doesn't return this buf size but the false part of readprocessmemory(). Pliz help

this function:

Code:

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ZeroMemory(buf, sizeof(buf));
if( ReadProcessMemory( hProcess, &baseaddr, &buf, bufsize, NULL ) == FALSE )
{
printf("\nProcess memory read failed", GetLastError());
_exit(1);
}
else
{
printf("\nProcess memory read: \n",buf);
}


return(0);

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Check this! :wave:

Good site, it may help. I'm still studying readmemoinfo
but my compiler cannot find

Code:

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#include "psapi.h"

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Well then try ...

Code:

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#include <psapi.h>

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And I think you will also need the library file (so the linker can reference the external calls of psapi.dll):

Code:

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#pragma comment(lib, "psapi.lib")

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/You got the code tags :)

But does the code compiles well in your compiler, i mean the example?? Because i get lot of errors i don't if its because of that header

Quote:

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Originally Posted by mpapeo

But does the code compiles well in your compiler, i mean the example?? Because i get lot of errors i don't if its because of that header

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Post the errors (and use code tags) and I will take a look at them ...

Well this code ...

Code:

---

#include <windows.h>
#include <stdio.h>
#include "psapi.h"

#pragma comment(lib, "psapi.lib")

void PrintMemoryInfo( DWORD processID )
{
    HANDLE hProcess;
    PROCESS_MEMORY_COUNTERS pmc;

    // Print the process identifier.

    printf( "\nProcess ID: %u\n", processID );

    // Print information about the memory usage of the process.

    hProcess = OpenProcess(  PROCESS_QUERY_INFORMATION |
                                    PROCESS_VM_READ,
                                    FALSE, processID );
    if (NULL == hProcess)
        return;

    if ( GetProcessMemoryInfo( hProcess, &pmc, sizeof(pmc)) )
    {
        printf( "\tPageFaultCount: 0x%08X\n", pmc.PageFaultCount );
        printf( "\tPeakWorkingSetSize: 0x%08X\n",
                  pmc.PeakWorkingSetSize );
        printf( "\tWorkingSetSize: 0x%08X\n", pmc.WorkingSetSize );
        printf( "\tQuotaPeakPagedPoolUsage: 0x%08X\n",
                  pmc.QuotaPeakPagedPoolUsage );
        printf( "\tQuotaPagedPoolUsage: 0x%08X\n",
                  pmc.QuotaPagedPoolUsage );
        printf( "\tQuotaPeakNonPagedPoolUsage: 0x%08X\n",
                  pmc.QuotaPeakNonPagedPoolUsage );
        printf( "\tQuotaNonPagedPoolUsage: 0x%08X\n",
                  pmc.QuotaNonPagedPoolUsage );
        printf( "\tPagefileUsage: 0x%08X\n", pmc.PagefileUsage );
        printf( "\tPeakPagefileUsage: 0x%08X\n",
                  pmc.PeakPagefileUsage );
    }

    CloseHandle( hProcess );
}

void main( )
{
    // Get the list of process identifiers.

    DWORD aProcesses[1024], cbNeeded, cProcesses;
    unsigned int i;

    if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
        return;

    // Calculate how many process identifiers were returned.

    cProcesses = cbNeeded / sizeof(DWORD);

    // Print the memory usage for each process

    for ( i = 0; i < cProcesses; i++ )
        PrintMemoryInfo( aProcesses[i] );
}

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... compiles fine on my Visual Studio .NET 7.0. The only thing I need to modify is: Include the #pragma directive to add the lib file to the linker. (highlighted)

I got these errors, i don't know if its because of the libraries or what?

Code:

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Compiling...
memoinfo.c
E:\memoinfo.c(9) : error C2065: 'PROCESS_MEMORY_COUNTERS' : undeclared identifier
E:\memoinfo.c(9) : error C2146: syntax error : missing ';' before identifier 'pmc'
E:\memoinfo.c(9) : error C2065: 'pmc' : undeclared identifier
E:\memoinfo.c(23) : warning C4013: 'GetProcessMemoryInfo' undefined; assuming extern returning int
E:\memoinfo.c(25) : error C2224: left of '.PageFaultCount' must have struct/union type
E:\memoinfo.c(28) : error C2224: left of '.WorkingSetSize' must have struct/union type
E:\memoinfo.c(31) : error C2224: left of '.QuotaPagedPoolUsage' must have struct/union type
E:\memoinfo.c(36) : error C2224: left of '.PagefileUsage' must have struct/union type
E:\memoinfo.c(37) : error C2224: left of '.PeakPagefileUsage' must have struct/union type
E:\memoinfo.c(50) : warning C4013: 'EnumProcesses' undefined; assuming extern returning int
Error executing cl.exe.

memoinfo.obj - 8 error(s), 2 warning(s)

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after trying yours
i get this

Code:

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Compiling...
memoinfo.c
E:\memoinfo.c(3) : fatal error C1083: Cannot open include file: 'psapi.h': No such file or directory
Error executing cl.exe.

memoinfo.obj - 1 error(s), 0 warning(s)

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Then you are missing the PSAPI include file. PSAPI is not supported by Windows 9X versions. If you are running NT or above, you should download the newest Software SDK by Microsoft to get this file. If you are sure you have it, search for it in the Microsoft Visual Studio subfolder, if you found it, add the directory where it is located to the "include directory" path list.

Sorry for missing something: Use these defines of macros before you include the windows header file:

Code:

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#define _WIN32_WINNT 0x0400
#define WINVER 0x0400
// Includes
#include <windows.h>

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Quote:

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Originally Posted by NoHero

Sorry for missing something: Use these defines of macros before you include the windows header file:

Code:

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#define _WIN32_WINNT 0x0400
#define WINVER 0x0400
// Includes
#include <windows.h>

---

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im using windows 2000

Code:

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C:\Program Files\Microsoft Visual Studio\VC98\Include

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there is no psapi there as a header file but its there in other folders like system 32 e.t.c

Well if it doesn't work with the includes above, you should download the latest Platform SDK.

Well thats another problem. If you have the site you can post it here for please, but i will search in google.

Here (found by typing Microsoft Platform SDK into google)

/Me go to sleep now ...

Thanks very much, good night. I also have to go and sleep but its only that i have to be through about this by the end of the week.

Good Luck