go dll char* memcpy

   dll := syscall.MustLoadDLL("hik_client.dll")callback := syscall.NewCallback(func(r uintptr, size int) (ret uintptr) {// 定义一个[]byte切片，用来存储C返回的字符串data := make([]byte,size)C.memcpy(unsafe.Pointer(&data[0]), unsafe.Pointer(r), C.size_t(size))err := conn.ws.WriteMessage(2,  data)if err != nil {fmt.Printf("conn.WriteMessage ERROR!!!\n")}runtime.Gosched()return 0})var filename stringfilename = "rtsp://admin:sbdwl123@192.168.25.45:554/h264/ch1/main/av_stream"procGreet := dll.MustFindProc("byte_url")procGreet.Call(uintptr(unsafe.Pointer(syscall.StringBytePtr(filename))), callback)

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go dll char* memcpy

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