beginthreadex例子 beginthreadex用法

基础知识：

uintptr_t _beginthread(    void( *start_address )( void * ),   unsigned stack_size,   void *arglist );uintptr_t _beginthreadex(    void *security,   unsigned stack_size,   unsigned ( *start_address )( void * ),   void *arglist,   unsigned initflag,   unsigned *thrdaddr );

在msdn中这样的例子：
是关于_beginthreadex的
// crt_begthrdex.cpp
// compile with: /MT
#include <windows.h>
#include <stdio.h>
#include <process.h>

unsigned Counter;
unsigned __stdcall SecondThreadFunc( void* pArguments )
{
printf( "In second thread...n" );

while ( Counter < 1000000 )
Counter++;

_endthreadex( 0 );
return 0;
}

int main()
{
HANDLE hThread;
unsigned threadID;

printf( "Creating second thread...n" );

// Create the second thread.
hThread = (HANDLE)_beginthreadex( NULL, 0, &SecondThreadFunc, NULL, 0, &threadID ); //NULL表示无传递参数

// Wait until second thread terminates. If you comment out the line
// below, Counter will not be correct because the thread has not
// terminated, and Counter most likely has not been incremented to
// 1000000 yet.
WaitForSingleObject( hThread, INFINITE );
printf( "Counter should be 1000000; it is-> %dn", Counter );
// Destroy the thread object.
CloseHandle( hThread );
}

=======================

有传递参数：

#include <windows.h>
#include <stdio.h>
#include <process.h>

typedef struct play_s
{
intsliderRange;

} Play_Param;

unsigned Counter;
unsigned __stdcall SecondThreadFunc( void* pArguments )
{
Play_Param*pp = (Play_Param *) pArguments;

int aa = pp->sliderRange;

while ( Counter < 1000000 )
Counter++;


_endthreadex( 0 );
return 0;
}

int main()
{
HANDLE hThread;
Play_Paramparam;

param.sliderRange =1000;
hThread = (HANDLE)_beginthreadex( NULL, 0,&SecondThreadFunc, &param,0,NULL);

//&param表示传递参数
WaitForSingleObject( hThread, INFINITE );
CloseHandle( hThread );
}

---------------------

void Start(Play_Param *param)
{
setState(RUN);//设置运行标示

if( hThread == 0 &&::WaitForSingleObject(hThread ,1) == WAIT_TIMEOUT)

//判断是否在运行
hThread = (HANDLE)_beginthreadex( NULL, 0,&SecondThreadFunc, param, 0,NULL);

}

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