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PDT$READW -- Read Data from Pseudoterminal and Wait 



Reads data from the pseudoterminal. The PTD$READW routine completes synchronously; that is, it returns to the caller after the data has been read.

For asynchronous completion, use the PTD$READ routine. The PTD$READ routine is identical to the PTD$READW routine in every way except that PTD$READ returns to the caller without waiting for the data to be read.

Format 

PDT$READW [efn], chan [.astadr] [,astprm] readbuf, readbuf_len

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