TLIST.C

/******************************************************************************\ 
*       This is a part of the Microsoft Source Code Samples.  
*  Copyright (C) 1994-1998 Microsoft Corporation. 
*       All rights reserved.  
*       This source code is only intended as a supplement to  
*       Microsoft Development Tools and/or WinHelp documentation. 
*       See these sources for detailed information regarding the  
*       Microsoft samples programs. 
\******************************************************************************/ 
 
/*++ 
 
Copyright (c) 1994  Microsoft Corporation 
 
Module Name: 
 
    tlist.c 
 
Abstract: 
 
    This module implements a task list application. 
 
--*/ 
 
#include <windows.h> 
#include <stdio.h> 
#include <stdlib.h> 
#include <string.h> 
#include "common.h" 
 
 
#define MAX_TASKS           256 
 
#define PrintTask(idx) \ 
        printf( "%4d %-16s", tlist[idx].dwProcessId, tlist[idx].ProcessName ); \ 
        if (tlist[idx].hwnd) { \ 
            printf( "  %s", tlist[idx].WindowTitle ); \ 
        } \ 
        printf( "\n" ); 
 
 
DWORD numTasks; 
TASK_LIST tlist[MAX_TASKS]; 
 
VOID Usage(VOID); 
 
 
int _cdecl 
main( 
    int argc, 
    char *argv[] 
    ) 
 
/*++ 
 
Routine Description: 
 
    Main entrypoint for the TLIST application.  This app prints 
    a task list to stdout.  The task list include the process id, 
    task name, ant the window title. 
 
Arguments: 
 
    argc             - argument count 
    argv             - array of pointers to arguments 
 
Return Value: 
 
    0                - success 
 
--*/ 
 
{ 
    DWORD             i; 
    TASK_LIST_ENUM    te; 
    BOOL              fTree; 
    OSVERSIONINFO     verInfo = {0}; 
    LPGetTaskList     GetTaskList; 
    LPEnableDebugPriv EnableDebugPriv; 
 
 
    if (argc > 1 && (argv[1][0] == '-' || argv[1][0] == '/') && argv[1][1] == '?') { 
        Usage(); 
    } 
 
    // 
    // Determine what system we're on and do the right thing 
    // 
 
    verInfo.dwOSVersionInfoSize = sizeof (verInfo); 
    GetVersionEx(&verInfo); 
 
    switch (verInfo.dwPlatformId) 
    { 
    case VER_PLATFORM_WIN32_NT: 
       GetTaskList     = GetTaskListNT; 
       EnableDebugPriv = EnableDebugPrivNT; 
       break; 
 
    case VER_PLATFORM_WIN32_WINDOWS: 
       GetTaskList = GetTaskList95; 
       EnableDebugPriv = EnableDebugPriv95; 
       break; 
 
    default: 
       printf ("tlist requires Windows NT or Windows 95\n"); 
       return 1; 
    } 
 
 
 
    fTree = FALSE; 
 
    // 
    // Obtain the ability to manipulate other processes 
    // 
    EnableDebugPriv(); 
 
    // 
    // get the task list for the system 
    // 
    numTasks = GetTaskList( tlist, MAX_TASKS ); 
 
    // 
    // enumerate all windows and try to get the window 
    // titles for each task 
    // 
    te.tlist = tlist; 
    te.numtasks = numTasks; 
    GetWindowTitles( &te ); 
 
    // 
    // print the task list 
    // 
    for (i=0; i<numTasks; i++) { 
PrintTask( i ); 
    } 
 
    // 
    // end of program 
    // 
    return 0; 
} 
 
VOID 
Usage( 
    VOID 
    ) 
 
/*++ 
 
Routine Description: 
 
    Prints usage text for this tool. 
 
Arguments: 
 
    None. 
 
Return Value: 
 
    None. 
 
--*/ 
 
{ 
    fprintf( stderr, "Microsoft (R) Windows NT (TM) Version 3.5 TLIST\n" ); 
    fprintf( stderr, "Copyright (C) 1994-1995 Microsoft Corp. All rights reserved\n\n" ); 
    fprintf( stderr, "usage: TLIST\n" ); 
    ExitProcess(0); 
}