获得当前进程的列表

王朝厨房·作者佚名  2007-01-04
窄屏简体版  字體: |||超大  

//进程描述信息

typedef struct _tagPROCESSINFO

{

DWORD dwPID;

TCHAR strPath[_MAX_PATH];

TCHAR strName[_MAX_FNAME];

} PROCESSINFO, *LPPROCESSINFO;

//获取进程信息列表

BOOL EnumProcessesInfo( PROCESSINFO* lpPsInfo, ULONG ulSize, ULONG* pulNeeded )

// lpPsInfo [out] : 指向PROCESSINFO结构数组的指针

// nSize [in] : lpPsInfo中的元素个数

// nNeeded [out] : 实际的元素个数

// 返回值 : TRUE : 成功; FALSE : 失败

{

ASSERT( pulNeeded );

LPDWORD lpdwPIDs ; //存储进程ID数组

DWORD dwbSize, dwbSize2;

dwbSize2 = 256 * sizeof( DWORD );

lpdwPIDs = NULL;

do {

if( lpdwPIDs ) {

HeapFree( GetProcessHeap(), 0, lpdwPIDs );

dwbSize2 *= 2;

}

lpdwPIDs = (LPDWORD)HeapAlloc( GetProcessHeap(), 0, dwbSize2 );

if( lpdwPIDs == NULL ) {

return FALSE ;

}

if( ! ::EnumProcesses( lpdwPIDs, dwbSize2, &dwbSize ) ) {

HeapFree( GetProcessHeap(), 0, lpdwPIDs ) ;

return FALSE ;

}

}while( dwbSize == dwbSize2 ) ;

ULONG ulCount = dwbSize / sizeof( DWORD );

//如果为询问数量,则返回实际数量

if ( NULL == lpPsInfo && 0 == ulSize ) {

*pulNeeded = ulCount;

return TRUE;

}

ASSERT( lpPsInfo );

if ( NULL == lpPsInfo ) {

return FALSE;

}

if ( ulSize <= ulCount ) {

*pulNeeded = ulSize;

}

else {

*pulNeeded = ulCount;

}

//获得进程信息

HANDLE hProcess;

HMODULE hModule;

DWORD dwSize;

char path_buffer[_MAX_PATH];

char drive[_MAX_DRIVE];

char dir[_MAX_DIR];

char fname[_MAX_FNAME];

char ext[_MAX_EXT];

// Loop through each ProcID.

for( ULONG ulIndex = 0 ; ulIndex < (*pulNeeded) ; ulIndex++ )

{

// Open the process (if we can... security does not

// permit every process in the system).

// TRACE("PID To Open:%d\r\n", lpdwPIDs[ulIndex] );

lpPsInfo[ulIndex].dwPID = lpdwPIDs[ulIndex];

lpPsInfo[ulIndex].strPath[0] = 0;

lpPsInfo[ulIndex].strName[0] = 0;

// Because Can’t Open 0 And 8 Process,

// Mark Them At There

if ( 0 == lpdwPIDs[ulIndex] ) {

strcpy( lpPsInfo[ulIndex].strName, "System Idle Process" );

continue;

}

else if ( 8 == lpdwPIDs[ulIndex] ) {

strcpy( lpPsInfo[ulIndex].strName, "System" );

continue;

}

// Open Process And Get Process Infomation

hProcess = OpenProcess(

PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,

FALSE, lpPsInfo[ulIndex].dwPID );

if( hProcess != NULL )

{

// Here we call EnumProcessModules to get only the

// first module in the process this is important,

// because this will be the .EXE module for which we

// will retrieve the full path name in a second.

if( EnumProcessModules( hProcess, &hModule,

sizeof(hModule), &dwSize ) ) {

// Get Full pathname:

if( GetModuleFileNameEx( hProcess, hModule,

path_buffer, sizeof(path_buffer) ) ) {

_tsplitpath( path_buffer, drive, dir, fname, ext );

strcpy( lpPsInfo[ulIndex].strPath, path_buffer );

sprintf( lpPsInfo[ulIndex].strName, "%s%s", fname, ext );

// TRACE( "ModuleFileName:%s\r\n", path_buffer );

}

}

CloseHandle( hProcess ) ;

}

}

return TRUE;

}

 
 
 
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