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---+ .STREAM READ _This subroutine is called to read a file stream._ <br />%TOC% ---++ Usage: <pre> PASS <read_buffer> FIELD SHARE? Y PASS <stream_name> FIELD SHARE? N PASS <read_length> FIELD SHARE? Y GOSUB --- .STREAM READ * check for errors IF --- .STREAM READ NE </pre> ---++ Description: This subroutine is called to read a file stream previously opened for READ access via [[0LASubrStreamOpen][.STREAM OPEN]]. The first two parameters are required, and the subroutine will CANCEL if they are are not all received. The <read_length> parameter is optional. <read_buffer> contains the data read from <stream_name> (Required). This subroutine can read lines up to a maximum of 32000 characters long. This must be passed SHARED to return any data. <stream_name> is the name of the previously opened stream (Required). <read_length> is the number of bytes to read (optional). If not passed, or if blank/zero is passed, it will read up until the line termination character specified in [[0LASubrStreamOpen][.STREAM OPEN]]. If passed shared, it will return the number of characters actually read, however, you should set it back to zero before the next GOSUB --- .STREAM READ, otherwise this subroutine will only read that number of characters. If --- .STREAM READ contains 'Data was truncated', it means the <read_buffer> field you passed was not large enough to contain all the data that was read. If --- .STREAM READ contains 'EOF', then there is no more data to be read. ---++ Comments: _Read what other users have said about this page or add your own comments._ <br />%COMMENT% -- Main.JeanNeron - 2012-01-23
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Topic revision: r4 - 2012-02-10
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JeanNeron
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