Killing processes

**Metal Man** · 10-21-2003

My program currently opens up multiple iexplorer.exe's in the background. Everytime I run it i get around 50 iexplorer.exe processes.

Now I'm hoping to find a way to kill all of them with a single click of a button.
So anyway... anybody know of any code that kills a process in Windows?

**bennyandthejets** · 10-22-2003

TerminateProcess(HANDLE hProcess,UINT uExitCode);

This sort of question can be answered easily by searching the forums. I searched for "kill process" and found the answer.

**Metal Man** · 10-22-2003

The only thing I can think of is...

TerminateProcess("iexplore.exe", 0);

That didnt work...
I looked up TerminateProcess and couldnt find anything that really helped me (I'm obviously very new at this)

**golfinguy4** · 10-22-2003

Here's a snippet from some code of mine.

Code:

void EndProcess(int id)
{     HANDLE myHandle;
      DWORD Code;
      PROCESSENTRY32 Proc=myList[id];
      if((myHandle=OpenProcess(PROCESS_ALL_ACCESS, FALSE, Proc.th32ProcessID))==NULL) 
      {     MessageBox(hwnd, "Error in OpenProcess", "Error", MB_OK);
            return;
      }
      if(GetExitCodeProcess(myHandle, &Code)==0) 
      {     MessageBox(hwnd, "Error in GetExitCodeProcess", "Error", MB_OK);
            return;
      }
      TerminateProcess(myHandle, Code);
      CloseHandle(myHandle);
      return;
}

**bennyandthejets** · 10-22-2003

Code:

DWORD dwProcessId;
HWND hFind;
HANDLE hProcess;

do
{
	hFind=FindWindow("IEFrame",NULL);
	if (!hFind)
		break;
	GetWindowThreadProcessId(hFind,&dwProcessId);
	hProcess=OpenProcess(PROCESS_TERMINATE,NULL, dwProcessId);
	if (hProcess)
		TerminateProcess(hProcess,0);
}

**Metal Man** · 10-23-2003

error C2440: '=' : cannot convert from 'class CWnd *' to 'struct HWND__ *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.

Using VC++ 6.0

???????????????????

**Salem** · 10-23-2003

Perhaps a better question would be "how do I stop so many processes from being created at once"

**bennyandthejets** · 10-23-2003

Originally posted by Metal Man
error C2440: '=' : cannot convert from 'class CWnd *' to 'struct HWND__ *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.

Using VC++ 6.0

???????????????????

Could you show the code you have at this time? I can't see why you should be getting this error.

**Metal Man** · 10-23-2003

Code:

// TheClicker3 Beta1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "TheClicker3 Beta1.h"
#include "TheClicker3 Beta1Dlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTheClicker3Beta1Dlg dialog

CTheClicker3Beta1Dlg::CTheClicker3Beta1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTheClicker3Beta1Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTheClicker3Beta1Dlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTheClicker3Beta1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTheClicker3Beta1Dlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTheClicker3Beta1Dlg, CDialog)
	//{{AFX_MSG_MAP(CTheClicker3Beta1Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON5, OnButton5)
	ON_BN_CLICKED(IDC_BUTTON6, OnButton6)
	ON_BN_CLICKED(IDC_BUTTON7, OnButton7)
	ON_BN_CLICKED(IDC_BUTTON8, OnButton8)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTheClicker3Beta1Dlg message handlers

BOOL CTheClicker3Beta1Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CTheClicker3Beta1Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CTheClicker3Beta1Dlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

HCURSOR CTheClicker3Beta1Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CTheClicker3Beta1Dlg::OnButton5() 
{
	// TODO: Add your control notification handler code here
	for(int x=0; x<10; x++)
		{
			char szPath[] = "C:\\Program Files\\Internet Explorer\\IEXPLORE.exe";

			 HINSTANCE hRet = ShellExecute(
			      HWND_DESKTOP, //Parent window
			      "open",       //Operation to perform
			      szPath,       //Path to program
			      "www.whatever.com",         //Parameters
			      NULL,         //Default directory
			      SW_HIDE);     //How to open
			 
			 		DWORD dwProcessId;
					HWND hFind;
					HANDLE hProcess;

				//	do
				//	{
						hFind=FindWindow("IEFrame",NULL);
						if (!hFind)
							break;
						GetWindowThreadProcessId(hFind,&dwProcessId);
						hProcess=OpenProcess(PROCESS_TERMINATE,NULL, dwProcessId);
						if (hProcess)
						TerminateProcess(hProcess,0);
				//	}
			 
		
		}
}

**Metal Man** · 10-23-2003

Code:

// TheClicker3 Beta1Dlg.h : header file
//

#if !defined(AFX_THECLICKER3BETA1DLG_H__92934473_FD13_4460_A993_E946B5A1D54E__INCLUDED_)
#define AFX_THECLICKER3BETA1DLG_H__92934473_FD13_4460_A993_E946B5A1D54E__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

/////////////////////////////////////////////////////////////////////////////
// CTheClicker3Beta1Dlg dialog

class CTheClicker3Beta1Dlg : public CDialog
{
// Construction
public:
	CTheClicker3Beta1Dlg(CWnd* pParent = NULL);	// standard constructor

// Dialog Data
	//{{AFX_DATA(CTheClicker3Beta1Dlg)
	enum { IDD = IDD_THECLICKER3BETA1_DIALOG };
		// NOTE: the ClassWizard will add data members here
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CTheClicker3Beta1Dlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	//{{AFX_MSG(CTheClicker3Beta1Dlg)
	virtual BOOL OnInitDialog();
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	afx_msg void OnButton5();

	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_THECLICKER3BETA1DLG_H__92934473_FD13_4460_A993_E946B5A1D54E__INCLUDED_)

**bennyandthejets** · 10-24-2003

Which line causes the error?

**Metal Man** · 10-24-2003

hFind=FindWindow("IEFrame",NULL);

If I remove that it points to any line with "hFind"

**bennyandthejets** · 10-24-2003

What happens if you leave that line in?

**Metal Man** · 10-24-2003

The error points to this line

Code:

hFind=FindWindow("IEFrame",NULL);

And if I remove it then the error points to the next line which has "hFind" in it.

**bennyandthejets** · 10-24-2003

I think the problem must then lie with MFC. I'm not an MFC person, so I can't help you, sorry.

There is no logical reason why an HWND should be interpreted as a CWND *. Could you zip up your source and send it? I could try to run it, but I can't make any guarantees.

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