Developer Resources
ProcessOutputStream
Overview
The ProcessOutputStream class allows the caller to access the stdout and stderr output streams of a process.
Methods
- ProcessOutputStream.eof
- Determines if the end of the stream has been reached
- ProcessOutputStream.readLine
- Read a single line from a text file
ProcessOutputStream.eof
- function ProcessOutputStream.eof() : Boolean
Returns
A boolean value indicating whether the end of the stream has been reached.
Description
When reading the stream, it is often necessary to determine when the end has been encountered. Calling eof() returns true if the process has terminated and there are no lines left in the input buffer. If the process is still running, eof() will always return true. If the process has terminated, eof() will return true if there are any pending lines in the buffer.
ProcessOutputStream.readLine
- function ProcessOutputStream.readLine() : String
Returns
A string containing the line read from the input stream. If an error or end-of-file condition was encountered, null is returned.
Description
Reads a single line from a process output stream. The file pointer is automatically advanced to the next line. A string containing the line read is returned, and does not include the carriage return or line-feed character. If data is not yet available for reading, or an end-of-file (eof) condition has been reached, null is returned. See eof() for more details.