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08/05/2008 at 08:24AM PDT, ID: 23622548
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8.4

[C++] Kill a process

Asked by JapyDooge in C++ Programming Language, Microsoft Visual C++.Net, Microsoft Windows Operating Systems

Tags: C++, n/a, n/a

I have a little problem here.
In C++ i create a process and after that i want to end (kill) it but for some reason i can't get this to work.
Check my code down here and see what i already tried (a LOT).

Most of this code is made of 'fount' pieces over the net.
I added 'EndTask' but it says:

 C:\Documents and Settings\2wjd\My Documents\Dev-C++\Projects\T2\main.cpp In function `LRESULT WndProc(HWND__*, UINT, WPARAM, LPARAM)':
353 C:\Documents and Settings\2wjd\My Documents\Dev-C++\Projects\T2\main.cpp `EndTask' undeclared (first use this function)
  (Each undeclared identifier is reported only once for each function it appears in.)
 C:\Documents and Settings\2wjd\My Documents\Dev-C++\Projects\T2\Makefile.win [Build Error]  [main.o] Error 1

That's strange becouse i have al needed includes.

I'm using Dev-C++, the starting and running of my program works great, i only want to kill the process i create on exit... 
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// test the listbox creation and selection
// modified from BCX generated C code for Dev-C++
// a Dev-C++ tested Windows Application by  vegaseat  04nov2004
 
#include <windows.h>
#include <winuser.h>
#include <stdio.h>
 
using namespace std;
 
static HINSTANCE BCX_hInstance;
static int     BCX_ScaleX;
static int     BCX_ScaleY;
static char    BCX_ClassName[2048];  // default size
static char    text[2048];
static HWND    Form1;
static HWND    List1;
static HWND    Butn1;
static HWND    Butn2;
int     IntSucces;
	STARTUPINFO si;
	PROCESS_INFORMATION pi;
#define Show(Window)  RedrawWindow(Window,0,0,0);ShowWindow(Window,SW_SHOW);
 
HWND    BCX_Form(char*,int=0,int=0,int=250,int=150,int=0,int=0);
HWND    BCX_Listbox(char*,HWND,int  ,int  ,int  ,int  ,int  ,int=0,int=-1);
HWND     BCX_Button(char*,HWND,int=0,int=0,int=0,int=0,int=0,int=0,int=-1);
int     BCX_Set_Text(HWND,char*);
void    Center (HWND,HWND=0,HWND=0);
char*   BCX_TmpStr(size_t);
 
void    FormLoad (void);
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
void    addLB (HWND, char *);
char    * getLB (HWND);
 
// sample data for the list box
static char names[2][10]=
{
  "WVUN002", "NVUN012"
};
 
 
// this is the standard windows main() function
int WINAPI WinMain(HINSTANCE hInst,HINSTANCE hPrev,LPSTR CmdLine,int CmdShow)
{
 WNDCLASS Wc;
 MSG      Msg;
 // *****************************
 strcpy(BCX_ClassName,"ListBox1");
 // ***************************************
 // Programmer has selected to use pixels
 // ***************************************
 BCX_ScaleX       = 1;          // for generic scaling
 BCX_ScaleY       = 1;
 BCX_hInstance    =  hInst;
 // ******************************************************
 Wc.style         =  CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
 Wc.lpfnWndProc   =  WndProc;
 Wc.cbClsExtra    =  0;
 Wc.cbWndExtra    =  0;
 Wc.hInstance     =  hInst;
 Wc.hIcon         =  LoadIcon(NULL,IDI_WINLOGO);
 Wc.hCursor       =  LoadCursor(NULL,IDC_ARROW);
 Wc.hbrBackground =  (HBRUSH)(COLOR_BTNFACE+1);
 Wc.lpszMenuName  =  NULL;
 Wc.lpszClassName =  BCX_ClassName;
 RegisterClass(&Wc);
 
 FormLoad();
  // the event message loop
 while(GetMessage(&Msg,NULL,0,0))
   {
    HWND hActiveWindow = GetActiveWindow();
    if (!IsWindow(hActiveWindow) || !IsDialogMessage(hActiveWindow,&Msg))
      {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
      }
    }
 return Msg.wParam;
}
 
 
// circular storage for strings
char *BCX_TmpStr (size_t Bites)
{
  static int   StrCnt;
  static char *StrFunc[2048];
  StrCnt=(StrCnt + 1) & 2047;
  if(StrFunc[StrCnt]) free (StrFunc[StrCnt]);
  return StrFunc[StrCnt]=(char*)calloc(Bites+128,sizeof(char));
}
int BCX_Set_Text(HWND hWnd, char *Text){
      return SetWindowText(hWnd,Text);
}
 
// center the form in the screen (really optional, for looks)
void Center (HWND hwnd, HWND Xhwnd, HWND Yhwnd)
{
  RECT rect, rectP;
  int  x, y, width, height;
  int  screenwidth, screenheight;
  if(Xhwnd==0)
    {
      RECT  DesktopArea;
      RECT  rc;
      SystemParametersInfo(SPI_GETWORKAREA,0,&DesktopArea,0);
      GetWindowRect(hwnd,&rc);
      SetWindowPos(hwnd,HWND_TOP,
        ((DesktopArea.right-DesktopArea.left)-(rc.right-rc.left))/2+
          DesktopArea.left,((DesktopArea.bottom-DesktopArea.top)-
         (rc.bottom-rc.top))/2 + DesktopArea.top,0,0,SWP_NOSIZE);
      return;
    }
  GetWindowRect (hwnd,&rect);
  GetWindowRect (Xhwnd,&rectP);
  width = rect.right-rect.left;
  x = ((rectP.right-rectP.left)-width)/2 + rectP.left;
  if(Yhwnd==NULL)
    {
      height = rect.bottom-rect.top;
      y = ((rectP.bottom-rectP.top)-height)/2 + rectP.top;
    }
  else
    {
      GetWindowRect(Yhwnd,&rectP);
      height = rect.bottom-rect.top;
      y = ((rectP.bottom-rectP.top)-height)/2+rectP.top;
    }
  screenwidth = GetSystemMetrics(SM_CXSCREEN);
  screenheight = GetSystemMetrics(SM_CYSCREEN);
  if ((x<0)) x=0;
  if ((y<0)) y=0;
  if ((x+width>screenwidth))   x = screenwidth-width;
  if ((y+height>screenheight)) y = screenheight-height;
  MoveWindow (hwnd, x, y, width, height, FALSE);
}
 
 
// create the windows form
HWND BCX_Form(char *Caption, int X, int Y, int W, int H, int Style, int Exstyle)
{
   HWND  A;
   // assign a default style
   if (!Style)
   {
     Style=
//     WS_MINIMIZEBOX  |
//     WS_SIZEBOX      |
     WS_CAPTION      |
//     WS_MAXIMIZEBOX  |
     WS_POPUP        |
     WS_SYSMENU      ;
   }
   A = CreateWindowEx(Exstyle,BCX_ClassName,Caption,
     Style,
     X*BCX_ScaleX,
     Y*BCX_ScaleY,
     (4+W)*BCX_ScaleX,
     (12+H)*BCX_ScaleY,
     NULL,(HMENU)NULL,BCX_hInstance,NULL);
   SendMessage(A,(UINT)WM_SETFONT,(WPARAM)GetStockObject(DEFAULT_GUI_FONT),
     (LPARAM)MAKELPARAM(FALSE,0));
   return A;
}
 
 
// create the list box with desired styles
HWND BCX_Listbox
(char* Text,HWND hWnd,int id,int X,int Y,int W,int H,int Style,int Exstyle)
{ 
  HWND  A;
  // assign a default style if needed
  if (!Style)
  {
    Style=LBS_STANDARD | WS_CHILD | WS_VISIBLE |
    LBS_SORT | WS_VSCROLL | WS_TABSTOP;
  }
  if (Exstyle == -1)
  {
    Exstyle=WS_EX_CLIENTEDGE;
  }
  A = CreateWindowEx(Exstyle,"Listbox",NULL,Style,
        X*BCX_ScaleX, Y*BCX_ScaleY, W*BCX_ScaleX, H*BCX_ScaleY,
        hWnd,(HMENU)id,BCX_hInstance,NULL);
  SendMessage(A,(UINT)WM_SETFONT,(WPARAM)GetStockObject
        (DEFAULT_GUI_FONT),(LPARAM)MAKELPARAM(FALSE,0));
  return A;
}
 
 
// create the various buttons
HWND BCX_Button
(char* Text,HWND hWnd,int id,int X,int Y,int W,int H,int Style,int Exstyle)
{ 
HWND A;
// assign default style
if(!Style)
{
Style=WS_CHILD | WS_VISIBLE | BS_MULTILINE | BS_PUSHBUTTON | WS_TABSTOP;
}
if(Exstyle==-1)
{
Exstyle=WS_EX_STATICEDGE;
}
A = CreateWindowEx(Exstyle,"button",Text,Style,
X*BCX_ScaleX, Y*BCX_ScaleY, W*BCX_ScaleX, H*BCX_ScaleY,
hWnd,(HMENU)id,BCX_hInstance,NULL);
SendMessage(A,(UINT)WM_SETFONT,(WPARAM)GetStockObject(DEFAULT_GUI_FONT),
(LPARAM)MAKELPARAM(FALSE,0));
if (W==0)
{
HDC hdc=GetDC(A);
SIZE size;
GetTextExtentPoint32(hdc,Text,strlen(Text),&size);
ReleaseDC(A,hdc);
MoveWindow(A,X*BCX_ScaleX,Y*BCX_ScaleY,(int)(size.cx+(size.cx*0.5)),(int)(size.cy+(size.cy*0.32)),TRUE);
}
return A;
}
 
 
// the details for Form1 and List1 (corner,width,height)
void FormLoad (void)
{
  static char A[2048];
  memset(&A,0,sizeof(A));
  static int      k;
  memset(&k,0,sizeof(k));
  Form1=BCX_Form("Select connection:",0,0,235,195);
  List1=BCX_Listbox("",Form1,1009,10,15,100,150);
  Butn1=BCX_Button("Connect",Form1,1010,120,140,100,25);
  Butn2=BCX_Button("Exit",Form1,1011,120,15,100,25);
  for(k=0; k<=1; k+=1)
  {
    strcpy(A,(char*)names[k]);
    addLB(List1,A);
  }
  Center(Form1);   // optional
  Show(Form1);
}
 
void KillProcess(DWORD pid)
{
HANDLE tokenHandle = INVALID_HANDLE_VALUE;
TOKEN_PRIVILEGES newTokenPrivileges;
TOKEN_PRIVILEGES oldTokenPrivileges;
DWORD oldTokenPrivilegeSize = 0;
LUID newLuid;
 
// Get Debug Privileges for current process
if(!OpenProcessToken(GetCurrentProcess(), (TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY), &tokenHandle))
{
printf ("Unable to get current process token - %d\n", GetLastError());
return;
}
 
// Get the LUID for SE_DEBUG_NAME
if(!LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &newLuid))
{
printf ("Unable to lookup privilege value SE_DEBUG_NAME - %d\n", GetLastError());
return;
}
 
// Setup new token privileges
newTokenPrivileges.PrivilegeCount = 1; // We need only one privilege to change time
// Copy over privilege value to one which we will send to system
memcpy(&newTokenPrivileges.Privileges[0].Luid, &newLuid, sizeof(LUID)); // The privilege to change system time
newTokenPrivileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; // Enable it !!
 
// Adjust the process token privileges
if(!AdjustTokenPrivileges(tokenHandle, FALSE, &newTokenPrivileges, sizeof(TOKEN_PRIVILEGES), &oldTokenPrivileges, &oldTokenPrivilegeSize))
{
printf ("Unable to adjust token privileges for current process - %d\n", GetLastError());
return;
}
 
HANDLE processHandle = OpenProcess (PROCESS_ALL_ACCESS, 0, pid);
 
if (!processHandle)
{
//printf ("Could not get process andle for %d... error = %d\n", pid, GetLastError));
//continue;
}
 
if (!TerminateProcess(processHandle, 0))
{
//printf ("Could not terminate process %d... error = %d\n", pid, GetLastError());
//continue;
}
 
CloseHandle(processHandle);
}
 
 
 
 
 
// standard windows message handling
LRESULT CALLBACK WndProc (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
  while(1)
  {
    if (Msg==WM_COMMAND)
    {
      //  list box item clicked (selected) 
      if (LOWORD(wParam)==1009)
      {
        if (HIWORD(wParam)==LBN_SELCHANGE)
        {
          strcpy(text,(char*)getLB(List1));
          //  just for test 
          //Beep(400,500);
          //  selected item to form title 
//          SetWindowText(Form1,text);
          BCX_Set_Text(Butn1,text);
//          system("notepad");
//          Butn1=BCX_Button(text,Form1,1009,120,140,100,25);
        }
      }
      if (LOWORD(wParam)==1010)
      {
          char buffer [500];
//          int n;
          //system("winvnc4.exe -register");
          //system("winvnc4.exe -start");
	//I know its annoying that CreateProcess REQUIRES these
 
	memset(& si, 0, sizeof(si));
	memset(& pi, 0, sizeof(pi));
 
	IntSucces = CreateProcess(NULL, "winvnc4.exe", NULL, NULL, FALSE, 0, 0, NULL, & si, & pi);
 
 
          //system("winvnc4.exe");
          sprintf(buffer, "%s %s %s", "winvnc4.exe -noconsole -connect", text,"DisableWallpaper=1");
          system(buffer);
 
      }
      if (LOWORD(wParam)==1011)
      {
          CloseHandle(pi.hThread );
          CloseHandle(pi.hProcess );
 
 
 
 
 
          IntSucces = TerminateProcess(pi.hProcess,1);
          CloseHandle(pi.hProcess);
          KillProcess((DWORD)pi.hProcess);
          EndTask(pi.hProcess, 0, 1);
          system("winvnc4.exe -disconnect");      
          system("winvnc4.exe -stop");          
          system("winvnc4.exe -unregister");
          UnregisterClass(BCX_ClassName,BCX_hInstance);
          PostQuitMessage(0);                                        
      } 
    }
    break;
  }
  // exit from the window form
  if (Msg==WM_DESTROY)
  {
            KillProcess((DWORD)pi.hProcess);
          CloseHandle(pi.hThread );
          CloseHandle(pi.hProcess );
          EndTask(pi.hProcess, 0, 1);
          IntSucces = TerminateProcess((void*)pi.dwProcessId,1);
          system("winvnc4.exe -disconnect");      
          system("winvnc4.exe -stop");          
          system("winvnc4.exe -unregister");
    UnregisterClass(BCX_ClassName,BCX_hInstance);
    PostQuitMessage(0);
  }
  return DefWindowProc(hWnd,Msg,wParam,lParam);
}
 
 
//  add a string to the listbox 
void addLB (HWND idnr, char *ltext)
{
  SendMessage(idnr,(UINT)LB_ADDSTRING,(WPARAM)0,(LPARAM)ltext);
}
 
//  return selected listbox string
char * getLB (HWND idnr)
{
  static int      index;
  memset(&index,0,sizeof(index));
  static char buf[2048];
  memset(&buf,0,sizeof(buf));
  char *BCX_RetStr={0};
  index=SendMessage(idnr,(UINT)LB_GETCURSEL,(WPARAM)0,(LPARAM)0);
  SendMessage(idnr,(UINT)LB_GETTEXT,(WPARAM)index,(LPARAM)buf);
  BCX_RetStr=BCX_TmpStr(strlen(buf));
  strcpy(BCX_RetStr,buf);
  return BCX_RetStr;
}
 
// *************************************************************
//   Created with BCX -- The BASIC To C Translator (ver 5.02)
//  BCX (c) 1999, 2000, 2001, 2002, 2003, 2004 by Kevin Diggins
// *************************************************************
 
Keywords: [C++] Kill a process
Title
1 Browse for a folder in MS-Access 97
2 Create controls dynamically
3 about Windows Service
 
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[+][-]08/05/08 08:49 AM, ID: 22162139

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About this solution

Zones: C++ Programming Language, Microsoft Visual C++.Net, Microsoft Windows Operating Systems
Tags: C++, n/a, n/a
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Solution Provided By: jkr
Participating Experts: 3
Solution Grade: A
 
 
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