Programming Forums > Application Development > C++

badbasser98 · Feb 24th, 2006, 2:58 PM

Thanks DaWei and nnxion, that worked.

I have made it so that its writes all the running process names and the ID's to a .txt file. I would like to have a function read the file and look for a certain process name (could have multiple entries) and grab the ID (or ID's) which is next to it. Would GetLine(); or "find" be the best function to use? and then, how can i split off just the ID?

The .txt file is setup like:

process1.exe 123
<unknown> 04
process2.exe 1000
process2.exe 546
...

I would like to be able to search for process2 for example and have it return both 1000 and 546 (and any other entries it may have). I haven't got to this section of my C++ book yet :o

Thanks,
-BB98

** Actually, I noticed the function I wish to use afterward, TerminateProcess(); needs to be passed the process handle... Does anyone know how that is returned (what type) by the OpenProcess(); command? I am trying to write that to the file as well, however I get an error when trying to write it as a string, and the other type I have tried cannot be right since 90% are identical values.

Cache · Feb 24th, 2006, 11:53 PM

You've got almost evreything you need from the MSDN example.

The code in bold is what I've changed from the original MSDN example. As you can see, there is no need for text file tricks, or much else for that matter:

(Toggle Plain Text)

#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#include "psapi.h"
 
void PrintProcessNameAndID( DWORD processID )
{
	TCHAR szProcessName[MAX_PATH] = TEXT("<unknown>");
 
	// Get a handle to the process.
 
	HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION |
				PROCESS_VM_READ | PROCESS_TERMINATE,
				FALSE, processID );
 
	// Get the process name.
 
	if (NULL != hProcess )
	{
		HMODULE hMod;
		DWORD cbNeeded;
 
		if ( EnumProcessModules( hProcess, &hMod, sizeof(hMod), 
			 &cbNeeded) )
		{
			GetModuleBaseName( hProcess, hMod, szProcessName, 
							 sizeof(szProcessName)/sizeof(TCHAR) );
		}
	}
 
	if ( lstrcmp(szProcessName, "taskmgr.exe") == 0 )
	{
		 TerminateProcess( hProcess, 0 );
	}
 
	CloseHandle( hProcess );
}
 
int main( )
{
	// Get the list of process identifiers.
 
	DWORD aProcesses[1024], cbNeeded, cProcesses;
	unsigned int i;
 
	if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
		return 0;
 
	// Calculate how many process identifiers were returned.
 
	cProcesses = cbNeeded / sizeof(DWORD);
 
	for ( i = 0; i < cProcesses; i++ )
		PrintProcessNameAndID( aProcesses[i] );
	
	return 0;
}

badbasser98 · Feb 27th, 2006, 9:18 AM

Thanks, but I cannot get that code to work. The compare works, however the TerminateProcess function does not. I will look into that function more.

Thanks for the help,
-BB98

badbasser98 · Feb 27th, 2006, 12:04 PM

I just made the program prompt the user that the screens are open and to close them before continuing. And to make sure, I looped that portion of the program untill a variable is set to zero (determining that all sessions of the Emulator have been closed). So they can click OK all day long and it will not go past the prompt untill they close the open sessions.

Thanks for the help, This will be sufficient.
-BB98

Feb 24th, 2006, 2:58 PM	#11
badbasser98 Hobbyist Programmer Join Date: Mar 2005 Location: United States Posts: 124 Rep Power: 4	Thanks DaWei and nnxion, that worked. I have made it so that its writes all the running process names and the ID's to a .txt file. I would like to have a function read the file and look for a certain process name (could have multiple entries) and grab the ID (or ID's) which is next to it. Would GetLine(); or "find" be the best function to use? and then, how can i split off just the ID? The .txt file is setup like: process1.exe 123 <unknown> 04 process2.exe 1000 process2.exe 546 ... I would like to be able to search for process2 for example and have it return both 1000 and 546 (and any other entries it may have). I haven't got to this section of my C++ book yet :o Thanks, -BB98 ** Actually, I noticed the function I wish to use afterward, TerminateProcess(); needs to be passed the process handle... Does anyone know how that is returned (what type) by the OpenProcess(); command? I am trying to write that to the file as well, however I get an error when trying to write it as a string, and the other type I have tried cannot be right since 90% are identical values. __________________ Learning to use C++ and loving every minute of it. Last edited by badbasser98; Feb 24th, 2006 at 3:23 PM.

Feb 24th, 2006, 11:53 PM	#12
Cache Hobbyist Join Date: Sep 2005 Posts: 259 Rep Power: 3	You've got almost evreything you need from the MSDN example. The code in bold is what I've changed from the original MSDN example. As you can see, there is no need for text file tricks, or much else for that matter: (Toggle Plain Text) #include <windows.h> #include <stdio.h> #include <tchar.h> #include "psapi.h" void PrintProcessNameAndID( DWORD processID ) { TCHAR szProcessName[MAX_PATH] = TEXT("<unknown>"); // Get a handle to the process. HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION \| PROCESS_VM_READ \| PROCESS_TERMINATE, FALSE, processID ); // Get the process name. if (NULL != hProcess ) { HMODULE hMod; DWORD cbNeeded; if ( EnumProcessModules( hProcess, &hMod, sizeof(hMod), &cbNeeded) ) { GetModuleBaseName( hProcess, hMod, szProcessName, sizeof(szProcessName)/sizeof(TCHAR) ); } } if ( lstrcmp(szProcessName, "taskmgr.exe") == 0 ) { TerminateProcess( hProcess, 0 ); } CloseHandle( hProcess ); } int main( ) { // Get the list of process identifiers. DWORD aProcesses[1024], cbNeeded, cProcesses; unsigned int i; if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) ) return 0; // Calculate how many process identifiers were returned. cProcesses = cbNeeded / sizeof(DWORD); for ( i = 0; i < cProcesses; i++ ) PrintProcessNameAndID( aProcesses[i] ); return 0; } #include <windows.h> #include <stdio.h> #include <tchar.h> #include "psapi.h" void PrintProcessNameAndID( DWORD processID ) { TCHAR szProcessName[MAX_PATH] = TEXT("<unknown>"); // Get a handle to the process. HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION \| PROCESS_VM_READ \| PROCESS_TERMINATE, FALSE, processID ); // Get the process name. if (NULL != hProcess ) { HMODULE hMod; DWORD cbNeeded; if ( EnumProcessModules( hProcess, &hMod, sizeof(hMod), &cbNeeded) ) { GetModuleBaseName( hProcess, hMod, szProcessName, sizeof(szProcessName)/sizeof(TCHAR) ); } } if ( lstrcmp(szProcessName, "taskmgr.exe") == 0 ) { TerminateProcess( hProcess, 0 ); } CloseHandle( hProcess ); } int main( ) { // Get the list of process identifiers. DWORD aProcesses[1024], cbNeeded, cProcesses; unsigned int i; if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) ) return 0; // Calculate how many process identifiers were returned. cProcesses = cbNeeded / sizeof(DWORD); for ( i = 0; i < cProcesses; i++ ) PrintProcessNameAndID( aProcesses[i] ); return 0; }

Feb 27th, 2006, 9:18 AM	#13
badbasser98 Hobbyist Programmer Join Date: Mar 2005 Location: United States Posts: 124 Rep Power: 4	Thanks, but I cannot get that code to work. The compare works, however the TerminateProcess function does not. I will look into that function more. Thanks for the help, -BB98 __________________ Learning to use C++ and loving every minute of it.

Feb 27th, 2006, 12:04 PM	#14
badbasser98 Hobbyist Programmer Join Date: Mar 2005 Location: United States Posts: 124 Rep Power: 4	I just made the program prompt the user that the screens are open and to close them before continuing. And to make sure, I looped that portion of the program untill a variable is set to zero (determining that all sessions of the Emulator have been closed). So they can click OK all day long and it will not go past the prompt untill they close the open sessions. Thanks for the help, This will be sufficient. -BB98 __________________ Learning to use C++ and loving every minute of it.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Application Development > C++

Search for and close open windows