Input and Output Routines

ASSOC (unit, array_structure [, offset])

Associates an array structure with a file, allowing random access input and output.

BYTEORDER, variable₁, ... , variable_n

Converts integers between host and network byte ordering. Can also be used to swap the order of bytes within both short and long integers.

BYTESWAP, variable₁

Reverse the byte order for each element of an array.

GET_KBRD (wait)

Returns the next character available from standard input (PV‑WAVE  file unit 0).

LN03 [, filename]

Standard Library procedure that opens or closes an output file for LN03 graphics output. The file can then be printed on an LN03 printer.

PRINT, expr₁, ... , expr_n

PRINT performs output to the standard output stream (PV‑WAVE  file unit –1).

PRINTF, unit, expr₁, ... , expr_n

PRINTF requires the output file unit to be specified.

READ, var₁, ..., var_n

Read input from the standard input stream into PV‑WAVE  variables.

READ_AIRS(filename)

Reads in hourly data from a file in the AIRS (Aerometric Information Retrieval System) format.

READF, unit, var₁, ..., var_n

Read input from a file into PV‑WAVE  variables.

READU, unit, var₁, ..., var_n

READU reads binary (unformatted) input from a specified file. (No processing of any kind is done to the data.)

READU_32, unit, var₁, ..., var₂₀

READU_32 reads a long data type as a 4-byte value from the given input stream. It is useful in reading 32-bit Longs on a 64-bit system. In addition, it can be used to read any other PV-WAVE data types.

WPRINT [, window_index]

(Microsoft Windows Only) Prints the contents of a specified window.

WREAD_DIB ( [window_index] )

(Microsoft Windows Only) Loads a Device Independent Bitmap (DIB) from a file into a graphics window.

WREAD_META ( [window_index] )

(Microsoft Windows Only) Loads a Windows metafile (WMF) into a graphics window.

WRITEU, unit, expr₁, ... , expr_n

Writes binary (unformatted) data from an expression into a file.

WWRITE_DIB ( [window_index] )

(Microsoft Windows Only) Saves the contents of a graphics window to a file as a Device Independent Bitmap (DIB).

WWRITE_META ( [window_index] )

(Microsoft Windows Only) Saves the contents of a graphics window to a file as a Windows metafile (WMF).