《Windows游戏编程大师技巧》（第二版）第11章

《Windows游戏编程大师技巧》（第二版）第11章(28) // DEMO11_7.CPP - An example of global message passing to control
// termination of threads.

// INCLUDES ///////////////////////////////////////////////////////

#define WIN32_LEAN_AND_MEAN  // make sure certain headers
                             // are included correctly

#include <windows.h>         // include the standard windows stuff
#include <windowsx.h>        // include the 32 bit stuff
#include <conio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <math.h>
#include <io.h>
#include <fcntl.h>

// DEFINES //////////////////////////////////////////////////////

#define MAX_THREADS 3

// PROTOTYPES //////////////////////////////////////////////////

DWORD WINAPI Printer_Thread(LPVOID data);

// GLOBALS /////////////////////////////////////////////////////

int terminate_threads = 0;  // global message flag to terminate
int active_threads    = 0;  // number of active threads

// FUNCTIONS ////////////////////////////////////////////////

DWORD WINAPI Printer_Thread(LPVOID data)
{
// this thread function simply prints out data until it is told to terminate

for(;;)
    {
    printf("%d ",(int)data+1); // output a single character
    Sleep(100);                // sleep a little to slow things down

                              // test for termination message
    if (terminate_threads)