diff --git a/src/Apple/Semaphore.cpp b/src/Apple/Semaphore.cpp
index 7e0af7c..d4301aa 100644
--- a/src/Apple/Semaphore.cpp
+++ b/src/Apple/Semaphore.cpp
@@ -1,7 +1,5 @@
 #include<hgl/thread/Semaphore.h>
 #include<hgl/LogInfo.h>
-#include<pthread.h>
-#include<dispatch/dispatch.h>
 
 namespace hgl
 {
diff --git a/src/UNIX/CondVar.cpp b/src/UNIX/CondVar.cpp
index 395133c..320b76d 100644
--- a/src/UNIX/CondVar.cpp
+++ b/src/UNIX/CondVar.cpp
@@ -10,13 +10,13 @@ namespace hgl
     {
         cond_var=new pthread_cond_t;
 
-        pthread_cond_init((pthread_cond_t *)cond_var,nullptr);
+        pthread_cond_init(cond_var,nullptr);
     }
 
     CondVar::~CondVar()
     {
-        pthread_cond_destroy((pthread_cond_t *)cond_var);
-        delete (pthread_cond_t *)cond_var;
+        pthread_cond_destroy(cond_var);
+        delete cond_var;
     }
 
     bool CondVar::Wait(ThreadMutex *tm,double t)
@@ -27,21 +27,21 @@ namespace hgl
 
             GetWaitTime(abstime,t);
 
-            return(!pthread_cond_timedwait((pthread_cond_t *)cond_var,tm->GetThreadMutex(),&abstime));
+            return(!pthread_cond_timedwait(cond_var,tm->GetThreadMutex(),&abstime));
         }
         else
         {
-            return(!pthread_cond_wait((pthread_cond_t *)cond_var,tm->GetThreadMutex()));
+            return(!pthread_cond_wait(cond_var,tm->GetThreadMutex()));
         }
     }
 
     void CondVar::Signal()
     {
-        pthread_cond_signal((pthread_cond_t *)cond_var);
+        pthread_cond_signal(cond_var);
     }
 
     void CondVar::Broadcast()
     {
-        pthread_cond_broadcast((pthread_cond_t *)cond_var);
+        pthread_cond_broadcast(cond_var);
     }
 }//namespace hgl
diff --git a/src/UNIX/RWLock.cpp b/src/UNIX/RWLock.cpp
index 26707ff..57c99a0 100644
--- a/src/UNIX/RWLock.cpp
+++ b/src/UNIX/RWLock.cpp
@@ -9,15 +9,15 @@ namespace hgl
     {
         lock=new pthread_rwlock_t;
 
-        pthread_rwlock_init((pthread_rwlock_t *)lock,nullptr);
+        pthread_rwlock_init(lock,nullptr);
     }
 
     RWLock::~RWLock()
     {
-        pthread_rwlock_destroy((pthread_rwlock_t *)lock);
+        pthread_rwlock_destroy(lock);
     }
 
-    bool RWLock::TryReadLock()  {return !pthread_rwlock_tryrdlock((pthread_rwlock_t *)lock);}
+    bool RWLock::TryReadLock()  {return !pthread_rwlock_tryrdlock(lock);}
 
 #if HGL_OS != HGL_OS_macOS
     bool RWLock::WaitReadLock(double t)
@@ -26,14 +26,14 @@ namespace hgl
 
         GetWaitTime(abstime,t);
 
-        return !pthread_rwlock_timedrdlock((pthread_rwlock_t *)lock,&abstime);
+        return !pthread_rwlock_timedrdlock(lock,&abstime);
     }
 #endif//HGL_OS != HGL_OS_macOS
 
-    bool RWLock::ReadLock()     {return !pthread_rwlock_rdlock((pthread_rwlock_t *)lock);}
-    bool RWLock::ReadUnlock()   {return !pthread_rwlock_unlock((pthread_rwlock_t *)lock);}
+    bool RWLock::ReadLock()     {return !pthread_rwlock_rdlock(lock);}
+    bool RWLock::ReadUnlock()   {return !pthread_rwlock_unlock(lock);}
 
-    bool RWLock::TryWriteLock() {return !pthread_rwlock_trywrlock((pthread_rwlock_t *)lock);}
+    bool RWLock::TryWriteLock() {return !pthread_rwlock_trywrlock(lock);}
 
 #if HGL_OS != HGL_OS_macOS
     bool RWLock::WaitWriteLock(double t)
@@ -42,10 +42,10 @@ namespace hgl
 
         GetWaitTime(abstime,t);
 
-        return !pthread_rwlock_timedwrlock((pthread_rwlock_t *)lock,&abstime);
+        return !pthread_rwlock_timedwrlock(lock,&abstime);
     }
 #endif//HGL_OS != HGL_OS_macOS
 
-    bool RWLock::WriteLock()    {return !pthread_rwlock_wrlock((pthread_rwlock_t *)lock);}
-    bool RWLock::WriteUnlock()  {return !pthread_rwlock_unlock((pthread_rwlock_t *)lock);}
+    bool RWLock::WriteLock()    {return !pthread_rwlock_wrlock(lock);}
+    bool RWLock::WriteUnlock()  {return !pthread_rwlock_unlock(lock);}
 }//namespace hgl
diff --git a/src/UNIX/Semaphore.cpp b/src/UNIX/Semaphore.cpp
index ea62c15..399acd7 100644
--- a/src/UNIX/Semaphore.cpp
+++ b/src/UNIX/Semaphore.cpp
@@ -14,10 +14,10 @@ namespace hgl
     {
         ptr=new sem_t;
 
-        if(sem_init((sem_t *)ptr,PTHREAD_PROCESS_PRIVATE,0))
+        if(sem_init(ptr,PTHREAD_PROCESS_PRIVATE,0))
         {
             LOG_ERROR(OS_TEXT("sem_init error,max_count=")+OSString(max_count));
-            delete (sem_t *)ptr;
+            delete ptr;
             ptr=nullptr;
         }
     }
@@ -26,8 +26,8 @@ namespace hgl
     {
         if(!ptr)return;
 
-        sem_destroy((sem_t *)ptr);
-        delete (sem_t *)ptr;
+        sem_destroy(ptr);
+        delete ptr;
     }
 
     /**
@@ -43,14 +43,14 @@ namespace hgl
         int result=0;
 
         for(int i=0;i<n;i++)
-            result+=sem_post((sem_t *)ptr);
+            result+=sem_post(ptr);
 
         return !result;
 
         //if(n==1)
-        //  return !sem_post((sem_t *)ptr);
+        //  return !sem_post(ptr);
         //else
-        //  return !sem_post_multiple((sem_t *)ptr,n);  //注：这个函数不是所有os都支持
+        //  return !sem_post_multiple(ptr,n);  //注：这个函数不是所有os都支持
     }
 
     /**
@@ -61,7 +61,7 @@ namespace hgl
     {
         if(!ptr)return(false);
 
-        return !sem_trywait((sem_t *)ptr);
+        return !sem_trywait(ptr);
     }
 
     /**
@@ -74,14 +74,14 @@ namespace hgl
         if(!ptr)return(false);
 
         if(t<=0)
-            return !sem_wait((sem_t *)ptr);
+            return !sem_wait(ptr);
         else
         {
             struct timespec abstime;
 
             GetWaitTime(abstime,t);
 
-            return !sem_timedwait((sem_t *)ptr,&abstime);
+            return !sem_timedwait(ptr,&abstime);
         }
     }
 }//namespace hgl
diff --git a/src/Win/CondVar.cpp b/src/Win/CondVar.cpp
index 49f2f43..095e3b6 100644
--- a/src/Win/CondVar.cpp
+++ b/src/Win/CondVar.cpp
@@ -8,31 +8,31 @@ namespace hgl
     CondVar::CondVar()
     {
         cond_var = new CONDITION_VARIABLE;
-        InitializeConditionVariable((CONDITION_VARIABLE *)cond_var);
+        InitializeConditionVariable(cond_var);
     }
 
     CondVar::~CondVar()
     {
-        delete (CONDITION_VARIABLE *)cond_var;
+        delete cond_var;
     }
 
     bool CondVar::Wait(ThreadMutex *tm, double time)
     {
-        return SleepConditionVariableCS((CONDITION_VARIABLE *)cond_var,(CRITICAL_SECTION *)(tm->GetThreadMutex()),(DWORD)(time>0?time*1000:INFINITE));
+        return SleepConditionVariableCS(cond_var,tm->GetThreadMutex(),(DWORD)(time>0?time*1000:INFINITE));
     }
 
     bool CondVar::Wait(RWLock *lock, double time, bool read)
     {
-        return SleepConditionVariableSRW((CONDITION_VARIABLE *)cond_var,(SRWLOCK *)(lock->GetRWLock()),(DWORD)(time>0?time*1000:INFINITE),read?CONDITION_VARIABLE_LOCKMODE_SHARED:0);
+        return SleepConditionVariableSRW(cond_var,lock->GetRWLock(),(DWORD)(time>0?time*1000:INFINITE),read?CONDITION_VARIABLE_LOCKMODE_SHARED:0);
     }
 
     void CondVar::Signal()
     {
-        WakeConditionVariable((CONDITION_VARIABLE *)cond_var);
+        WakeConditionVariable(cond_var);
     }
 
     void CondVar::Broadcast()
     {
-        WakeAllConditionVariable((CONDITION_VARIABLE *)cond_var);
+        WakeAllConditionVariable(cond_var);
     }
 }//namespace hgl
diff --git a/src/Win/RWLock.cpp b/src/Win/RWLock.cpp
index 3a1018b..c05aa56 100644
--- a/src/Win/RWLock.cpp
+++ b/src/Win/RWLock.cpp
@@ -1,4 +1,4 @@
-#include<hgl/thread/RWLock.h>
+#include<hgl/thread/RWLock.h>
 
 #pragma warning(disable:4800)            // BOOL -> bool 性能损失警告
 namespace hgl
@@ -7,19 +7,19 @@ namespace hgl
     {
         lock = new SRWLOCK;
 
-        InitializeSRWLock((SRWLOCK *)lock);
+        InitializeSRWLock(lock);
     }
 
     RWLock::~RWLock()
     {
-        delete (SRWLOCK *)lock;
+        delete lock;
     }
 
-    bool RWLock::TryReadLock()    { return TryAcquireSRWLockShared((SRWLOCK *)lock); }
-    bool RWLock::ReadLock()        { AcquireSRWLockShared((SRWLOCK *)lock); return(true); }
-    bool RWLock::ReadUnlock()    { ReleaseSRWLockShared((SRWLOCK *)lock); return(true); }
+    bool RWLock::TryReadLock(){ return TryAcquireSRWLockShared(lock); }
+    bool RWLock::ReadLock   (){ AcquireSRWLockShared(lock); return(true); }
+    bool RWLock::ReadUnlock (){ ReleaseSRWLockShared(lock); return(true); }
 
-    bool RWLock::TryWriteLock()    { return TryAcquireSRWLockExclusive((SRWLOCK *)lock); }
-    bool RWLock::WriteLock()    { AcquireSRWLockExclusive((SRWLOCK *)lock); return(true); }
-    bool RWLock::WriteUnlock()    { ReleaseSRWLockExclusive((SRWLOCK *)lock); return(true); }
+    bool RWLock::TryWriteLock   (){ return TryAcquireSRWLockExclusive(lock); }
+    bool RWLock::WriteLock      (){ AcquireSRWLockExclusive(lock); return(true); }
+    bool RWLock::WriteUnlock    (){ ReleaseSRWLockExclusive(lock); return(true); }
 }//namespace hgl
diff --git a/src/Win/Semaphore.cpp b/src/Win/Semaphore.cpp
index a937a30..e0d33ca 100644
--- a/src/Win/Semaphore.cpp
+++ b/src/Win/Semaphore.cpp
@@ -11,7 +11,7 @@ namespace hgl
     */
     Semaphore::Semaphore(int max_count)
     {
-        ptr=CreateSemaphore(nullptr,0,max_count,nullptr);
+        ptr=CreateSemaphoreW(nullptr,0,max_count,nullptr);
 
         if(!ptr)
             LOG_ERROR(OS_TEXT("CreateSemaphore error,max_count=")+OSString(max_count));