VC2015创建多线程以及将成员函数作为回调函数使用
__declspec(thread) int nCount = 0;//线程局部变量 DWORD WINAPI threadProc(LPVOID * wparm) { int i = 0; while (1) { if (i == 20) break; Sleep(30); nCount =i++; CString str; str.Format(_T("%d\n"), nCount); TRACE(str); } return 0; } void CtestThreadDlg::OnBnClickedButton14() { HANDLE handle = ::CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)threadProc,this, 0,NULL);//函数类型转换 }
将类的成员函数,作为线程的回调函数.代码如下:
class test { UINT m_nCount; public: UINT WINAPI threadProc(LPVOID * wparm); } UINT __stdcall test::threadProc(LPVOID * wparm) { int i = 0; while (1) { if (i == 20) break; Sleep(30); m_nCount =i++; CString str; str.Format(_T("%d\n"), m_nCount); TRACE(str); } return 0; } void test::OnBnClickedStart() { typedef UINT (__stdcall *stdProc)(LPVOID); typedef UINT (__stdcall test::* ProcObject)(LPVOID); ProcObject theProc = (ProcObject)&test::threadProc; HANDLE handle = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)*(stdProc*)&theProc,this, 0,NULL); }