FSReceive.WriteBuffer(bufReceive^,iReceiveLength);这句代码出错，一般是什么原因？

Question

FSReceive.WriteBuffer(bufReceive^,iReceiveLength);这句代码出错，一般是什么原因？ 
FSReceive是Tfilestream的对象.
错误信息Access violation at address 0415f61 in module 'XX.exe' Read of address 66645D

Answer 1

FSReceive.WriteBuffer(bufReceive[0],iReceiveLength);
//----bufReceive:array of byte??

Answer 2

bufReceive : pointer;
    socket.ReceiveBuf(bufReceive^,iReceiveLength);

Answer 3

bufReceive : pointer;
    socket.ReceiveBuf(bufReceive^,iReceiveLength);bufReceive指向的接收缓冲区是什么呢？
iReceiveLength值是多少？ var
  recebuff:string; bufreceive=@recebuff[1];
 socket.ReceiveBuf(bufReceive^,iReceiveLength);我没有测试，你自己测试下