Print Queue
The Print Queue specifies the destination of the printed output.
You can use the Print Queue to create a print file, spawn an operating system command, or print the output and delete the print file.
| Entry | Meaning |
|---|---|
| No value | Writes the output to a Uniface print file in the current working directory (unless redirected through the assignment file). |
PRINTMAN
|
Sends the output to the Microsoft Windows
Print Manager, which displays the Print dialog box that allows you to specify
printer properties. If you do not want this dialog box to
appear, specify |
PORT
|
Sends the output directly to the logical
printer specified in the Print Options field, for example,
LPT1:. |
| @Command | Spawns an operating system
Command, passing the printed output to Command as a
parameter. More parameters can be added in the Print Options field. |
| #Command | Spawns the
Commandsynchronously, passing the printed output to Command
as a parameter. Uniface waits for the command to complete before continuing. |
| Other value | Generates the print command for the
operating system, appending any Print Options specified. The generated
command depends on the operating system, version, and Uniface version. For example, on Unix it
would be:
|
Spawning Commands
If the first character is the @
symbol, Uniface spawns the subsequent text as a command to the operating system and passes the name
of the print file as a parameter, followed by any Print Options. This
feature enables you to write your own printing procedures and shell scripts.
Command Parameters
The constituent parts of the command that Uniface spawns can be accessed in a script using the following parameters:
$0—value of Print Queue$1—PrintFileName$2through$n—options given in Print Options
Windows: Executing Commands in a Windows Command Window
In this example, the Print Queue starts a command window and the Print Options specifies further instructions to redirect the standard input (coming from Uniface) to a file myfile.ps.
