(optional) The name of the command to spawn.
Spawns a childprocess to execute a given command.
(optional) The name of the command to spawn.
(optional) Indicates where the result is to be directed.
If present and nonzero, a new Command window is created and all input and output is directed through the new Command window. This parameter is ignored when the output parameter result is specified. The default is to create the new Command window.
NOTE: No keyboard input can be directed to the spawned child process unless a new Command window has been created.
The number of string elements returned if the output is a string variable.Noshell
If present and nonzero, specifies that command should execute directly as a child process without an intervening shell process. In this case, command must be specified as a string in which the first element is the name of the command to execute and the following tokens are the parameters to be passed to the command. The command that is executed with the Noshell option cannot be a command that itself creates a shell, such as dir. Noshell is useful when performing many spawned operations from a program and speed is a primary concern. Since no shell is present, wildcard characters are not expanded, and other tasks normally performed by the shell do not occur.
Nowait
If set, causes the calling process to continue executing in parallel with the subprocess. Otherwise, the calling process waits until the subprocess completes.
SPAWN,'dir'
For background information, see Chapter 1, Accessing the Operating System, in the PV-WAVE GUI Application Developer's Guide.
