_beginthread()的用法，请多指教！

请大侠多多指教！谢谢！
_beginthread(
   void( __cdecl *start_address )( void * ),
   unsigned stack_size,
   void *arglist
);
第一个参数‘start_address’就是要调用的那个函数名吗？
第三个参数‘arglist’是一个自变量列表是什么意思呢？
如果要调用的函数有好几个参数，把那些参数设为全局变量，再把‘arglist’设成NULL可以吗？
如果不想把那些参数设为全局变量，该怎么传呢？

例如想调用的函数是：void PCI9054_ReadFrRam2 (PCI9054_HANDLE hPCI9054, PCI9054_ADDR addrSpace, DWORD dwOffset,FILE *fp)


[编辑 -  11/15/04 by  zsh_7769]

把一些列变量构造一个struct，然后传递该指针

构造一个struct如下：
typedef struct
{
    PCI9054_HANDLE hPCI9054;
PCI9054_ADDR addrSpace;
DWORD dwOffset;
FILE *fp;
} THREAD;
调用如下：
_beginthread( PCI9054_ReadFrRam2,0,&THREAD);
但编译错误，呵呵，该怎么处理了？

构造一个struct如下：
typedef struct
{
    PCI9054_HANDLE hPCI9054;
PCI9054_ADDR addrSpace;
DWORD dwOffset;
FILE *fp;
} THREAD;
调用如下：
_beginthread( PCI9054_ReadFrRam2,0,&THREAD);
但编译错误，呵呵，该怎么处理了？

出现的是什么错误？？？？？

不过你得先声明一个结构变量后再用吧

至少得
THREAD  hRead;
_beginthread( PCI9054_ReadFrRam2,0,&hRead);
这样吧

要这样调用:_beginthread( PCI9054_ReadFrRam2,0,(void*)&THREAD);

/* BEGTHRD.C illustrates multiple threads using functions:
 *
 *      _beginthread            _endthread
 *
 *
 * This program requires the multithreaded library. For example,
 * compile with the following command line:
 *     CL /MT /D "_X86_" BEGTHRD.C
 *
 * If you are using the Visual C++ development environment, select the
 * Multi-Threaded runtime library in the compiler Project Settings
 * dialog box.
 *
 */

#include <windows.h>
#include <process.h>    /* _beginthread, _endthread */
#include <stddef.h>
#include <stdlib.h>
#include <conio.h>

void Bounce( void *ch );
void CheckKey( void *dummy );

/* GetRandom returns a random integer between min and max. */
#define GetRandom( min, max ) ((rand() % (int)(((max) + 1) - (min))) + (min))

BOOL repeat = TRUE;     /* Global repeat flag and video variable */
HANDLE hStdOut;         /* Handle for console window */
CONSOLE_SCREEN_BUFFER_INFO csbi;    /* Console information structure */

void main()
{
    CHAR    ch = 'A';

    hStdOut = GetStdHandle( STD_OUTPUT_HANDLE );

    /* Get display screen's text row and column information. */
   GetConsoleScreenBufferInfo( hStdOut, &csbi );

    /* Launch CheckKey thread to check for terminating keystroke. */
    _beginthread( CheckKey, 0, NULL );

    /* Loop until CheckKey terminates program. */
    while( repeat )
    {
        /* On first loops, launch character threads. */
        _beginthread( Bounce, 0, (void *) (ch++)  );

        /* Wait one second between loops. */
        Sleep( 1000L );
    }
}

/* CheckKey - Thread to wait for a keystroke, then clear repeat flag. */
void CheckKey( void *dummy )
{
    _getch();
    repeat = 0;    /* _endthread implied */

}

/* Bounce - Thread to create and and control a colored letter that moves
 * around on the screen.
 *
 * Params: ch - the letter to be moved
 */
void Bounce( void *ch )
{
    /* Generate letter and color attribute from thread argument. */
    char    blankcell = 0x20;
    char    blockcell = (char) ch;
    BOOL    first = TRUE;
   COORD   oldcoord, newcoord;
   DWORD   result;


    /* Seed random number generator and get initial location. */
    srand( _threadid );
    newcoord.X = GetRandom( 0, csbi.dwSize.X - 1 );
    newcoord.Y = GetRandom( 0, csbi.dwSize.Y - 1 );
    while( repeat )
    {
        /* Pause between loops. */
        Sleep( 100L );

        /* Blank out our old position on the screen, and draw new letter. */
        if( first )
            first = FALSE;
        else
         WriteConsoleOutputCharacter( hStdOut, &blankcell, 1, oldcoord, &result );
         WriteConsoleOutputCharacter( hStdOut, &blockcell, 1, newcoord, &result );

        /* Increment the coordinate for next placement of the block. */
        oldcoord.X = newcoord.X;
        oldcoord.Y = newcoord.Y;
        newcoord.X += GetRandom( -1, 1 );
        newcoord.Y += GetRandom( -1, 1 );

        /* Correct placement (and beep) if about to go off the screen. */
        if( newcoord.X < 0 )
            newcoord.X = 1;
        else if( newcoord.X == csbi.dwSize.X )
            newcoord.X = csbi.dwSize.X - 2;
        else if( newcoord.Y < 0 )
            newcoord.Y = 1;
        else if( newcoord.Y == csbi.dwSize.Y )
            newcoord.Y = csbi.dwSize.Y - 2;

        /* If not at a screen border, continue, otherwise beep. */
        else
            continue;
        Beep( ((char) ch - 'A') * 100, 175 );
    }
    /* _endthread given to terminate */
    _endthread();
}

编译出错：error C2664: '_beginthread' : cannot convert parameter 1 from 'void (struct PCI9054_STRUCT *,unsigned long,unsigned long,struct _iobuf *)' to 'void (__cdecl *)(void *)'

typedef struct PCI9054_STRUCT *PCI9054_HANDLE;
而
enum
{
    PCI9054_AD_BAR0 = AD_PCI_BAR0,
    PCI9054_AD_BAR1 = AD_PCI_BAR1,
    PCI9054_AD_BAR2 = AD_PCI_BAR2,
    PCI9054_AD_BAR3 = AD_PCI_BAR3,
    PCI9054_AD_BAR4 = AD_PCI_BAR4,
    PCI9054_AD_BAR5 = AD_PCI_BAR5,
    PCI9054_AD_EPROM = AD_PCI_BAR_EPROM,
};
typedef DWORD PCI9054_ADDR;
呵呵，不好意思，昨天没把 PCI9054_ADDR和PCI9054_HANDLE说清楚。

zsh_7769:
问题解决了没有？

还没呢？就是你前一个帖子的问题

zsh_7769:
还没解决，kao,i服了you :)
typedef struct __ThreadParam
{
PCI9054_STRUCT ps;
unsigned long ul1;
unsigned long ul2;
struct _iobuf *pBuf;
}ThreadParam, *PThreadParam;

ThreadParam tp = {...};

void ThreadFunc(void *p)
{
PThreadParam ptp = (PThreadParam)p;

return PCI9054_ReadFrRam2(ptp->ps, ...);
}
__BeginThread(ThreadFunc, 0, &tp);

OK?

maqian：
     呵呵，不好意思，我的水平确实太臭，多谢多谢

zsh_7769:
不客气

maqian：
呵呵，不好意思，其实你上面写的那一段我看的不是很懂，能稍微讲解一下吗？多谢多谢！

zsh_7769:
这么说，还没解决？
cannot convert parameter 1 from 'void (struct PCI9054_STRUCT *,unsigned long,unsigned long,struct _iobuf *)' to 'void (__cdecl *)(void *)'
  
所以，要像我那样写。
OK？

呵呵，只是不明白为什么这样写，虽然这样用可以解决，但不明白啊，想搞清楚

beginthread接受的线程函数（回调函数）规定只有一个参数（void *p），你给beginthread的函数有这么多的参数，那当然不行。所以，要将那些参数打包成一个指针，以符合'void (__cdecl *)(void *)的要求。
beginthread接受的线程函数也算是一个回调函数，只是它只被调用一次。

呵呵，先谢过啦，这段是什么意思呢？
ThreadParam tp = {...};

void ThreadFunc(void *p)
{
PThreadParam ptp = (PThreadParam)p;

return PCI9054_ReadFrRam2(ptp->ps, ...);
}

呵呵，先谢过啦，这段是什么意思呢？
ThreadParam tp = {...};

void ThreadFunc(void *p)
{
PThreadParam ptp = (PThreadParam)p;

return PCI9054_ReadFrRam2(ptp->ps, ...);
}
 

奇怪！线程函数居然返回一个空类型！！

我也遇到上述问题