h6. [[WindowManager]] h6(. » [[WindowManager SWI Calls|SWI Calls]] h6((. » Wimp_TransferBlock h2. Wimp_TransferBlock h5. (SWI &400F1) |_<^. Entry |<^. | |<^. R0 |<^. Handle of source task | |<^. R1 |<^. Pointer to source data | |<^. R2 |<^. Handle of destination task | |<^. R3 |<^. Pointer to destination buffer | |<^. R4 |<^. Length of buffer| |_<^. Exit |_<^. | |<^. R0 |<^. Corrupt | h4. Use The purpose of this call is to transfer a block of data from one task to another. h4. Notes This call is often used to transfer data to another task when a user has dragged data from one task to another. The data transferred is byte-aligned.