推荐回答(1个)
1、HANDLE CreateThread(LPSECURITY_ATTRIBUTES lpThreadAttributes, DWORD dwStackSize, LPTHREAD_START_ROUTINE lpStartAddress, LPVOID lpParameter, DWORD dwCreationFlags, LPDWORD lpThreadId);
该函数在其调用进程的进程空间里创建一个新的线程,并返回已建线程的句柄,其中各参数说明如下:
lpThreadAttributes:指向一个 SECURITY_ATTRIBUTES 结构的指针,该结构决定了线程的安全属性,一般置为 NULL;
dwStackSize:指定了线程的堆栈深度,一般都设置为0;
lpStartAddress:表示新线程开始执行时代码所在函数的地址,即线程的起始地址。一般情况为(LPTHREAD_START_ROUTINE)ThreadFunc,ThreadFunc 是线程函数名;
lpParameter:指定了线程执行时传送给线程的32位参数,即线程函数的参数;
dwCreationFlags:控制线程创建的附加标志,可以取两种值。如果该参数为0,线程在被创建后就会立即开始执行;如果该参数为CREATE_SUSPENDED,则系统产生线程后,该线程处于挂起状态,并不马上执行,直至函数ResumeThread被调用;
lpThreadId:该参数返回所创建线程的ID;
如果创建成功则返回线程的句柄,否则返回NULL。
2、DWORD SuspendThread(HANDLE hThread);
该函数用于挂起指定的线程,如果函数执行成功,则线程的执行被终止。 3、DWORD ResumeThread(HANDLE hThread);
该函数用于结束线程的挂起状态,执行线程。 4、VOID ExitThread(DWORD dwExitCode);
该函数用于线程终结自身的执行,主要在线程的执行函数中被调用。其中参数dwExitCode用来设置线程的退出码。 5、BOOL TerminateThread(HANDLE hThread,DWORD dwExitCode);
一般情况下,线程运行结束之后,线程函数正常返回,但是应用程序可以调用TerminateThread强行终止某一线程的执行。各参数含义如下:
hThread:将被终结的线程的句柄;
dwExitCode:用于指定线程的退出码。
使用TerminateThread()终止某个线程的执行是不安全的,可能会引起系统不稳定;虽然该函数立即终止线程的执行,但并不释放线程所占用的资源。因此,一般不建议使用该函数。
6、BOOL PostThreadMessage(DWORD idThread, UINT Msg, WPARAM wParam, LPARAM lParam);
该函数将一条消息放入到指定线程的消息队列中,并且不等到消息被该线程处理时便返回。
idThread:将接收消息的线程的ID;
Msg:指定用来发送的消息;
wParam:同消息有关的字参数;
lParam:同消息有关的长参数;
调用该函数时,如果即将接收消息的线程没有创建消息循环,则该函数执行失败。
顺便说一下WaitForSingleObject函数,其函数原型为:
DWORD WaitForSingleObject(HANDLE hHandle,DWORD dwMilliseconds);
hHandle为要监视的对象(一般为同步对象,也可以是线程)的句柄;
dwMilliseconds为hHandle对象所设置的超时值,单位为毫秒;
当在某一线程中调用该函数时,线程暂时挂起,系统监视hHandle所指向的对象的状态。如果在挂起的dwMilliseconds毫秒内,线程所等待的对象变为有信号状态,则该函数立即返回;如果超时时间已经到达dwMilliseconds毫秒,但hHandle所指向的对象还没有变成有信号状态,函数照样返回。参数dwMilliseconds有两个具有特殊意义的值:0和INFINITE。若为0,则该函数立即返回;若为INFINITE,则线程一直被挂起,直到hHandle所指向的对象变为有信号状态时为止.
如果对您有帮助,请记得采纳为满意答案,谢谢!祝您生活愉快!
vaela
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