{The S-lang C Library Reference}: SLsmg_read_raw

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## 35. SLsmg_read_raw

Synopsis

  Read characters from the virtual display

Usage

  `unsigned int SLsmg_read_raw (unsigned short *buf, unsigned int len)`

Description

  `SLsmg_read_raw` attempts to read `len` characters from the current position on the virtual display into the buffer specified by `buf`. It returns the number of characters actually read. This number will be less than `len` if an attempt is made to read past the right margin of the display.

Notes

  The purpose of the pair of functions, `SLsmg_read_raw` and `SLsmg_write_raw`, is to permit one to copy the contents of one region of the virtual display to another region.

See Also

  `SLsmg_char_at, SLsmg_write_raw`

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