public InputMapper()
{
bool exists = false;
if (_readwriteMutex == null)
{
_readwriteMutex = new System.Threading.Mutex(false, @"F3DTouchMutex", out exists);
}
_touchInfo = new ClientWinTouchInfo();
}
public ClientWinTouchInfo GetProTouchInfo()
{
try
{
_readwriteMutex.WaitOne();
int structLength = Marshal.SizeOf(_touchInfo);
IntPtr temp_mapHandle = OpenFileMapping(FILE_MAP_READ, 0, "F3DTouchShared");
if (temp_mapHandle == IntPtr.Zero)
{
_readwriteMutex.ReleaseMutex();
return(_touchInfo);
}
// 映射对象的一个视图，得到指向共享内存的指针，获取里面的数据
IntPtr pBuf = MapViewOfFile(temp_mapHandle,
FILE_MAP_READ,
0,
0,
(uint)structLength);
if (pBuf == IntPtr.Zero)
{
_readwriteMutex.ReleaseMutex();
return(_touchInfo);
}
IntPtr structPointer = Marshal.AllocHGlobal(structLength);
Marshal.StructureToPtr(_touchInfo, structPointer, true);
CopyMemory(structPointer, pBuf, structLength);
_touchInfo = (ClientWinTouchInfo)Marshal.PtrToStructure(structPointer, typeof(ClientWinTouchInfo));
CloseHandle(temp_mapHandle);
_readwriteMutex.ReleaseMutex();
}
catch (System.Exception e)
{
_readwriteMutex.ReleaseMutex();
UnityEngine.Debug.LogError("InputMapper.GetProTouchInfo error" + e);
throw;
}
return(_touchInfo);
}
