Difference between revisions of "MC-Basic:WATCH"

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(Addition of Watch command without a task name and examples for both types of Watch.)
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{{Languages|MC-Basic:WATCH}}
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{{Languages|MC-Basic:WATCH}}  
 
{{MC-Basic
 
{{MC-Basic
 
|SHORT FORM=
 
|SHORT FORM=
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|SYNTAX=
 
|SYNTAX=
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Watch <expression>
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Watch ''<task name> <variable_name>''
 
Watch ''<task name> <variable_name>''
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|AVAILABILITY=
 
|AVAILABILITY=
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|DESCRIPTION=
 
|DESCRIPTION=
Sends a string to a task to send data to a prompt command.
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There are two types of Watch command available:
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Watch command without a task name shows the value of any expression.
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Watch command with a task name only exhibits the value of global variables addressed by the task, or static variables declared within the task.
  
 
|TYPE=
 
|TYPE=
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|LIMITATIONS=
 
|LIMITATIONS=
The task must exist.
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For Watch command with task name:
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The task must exist and must be stopped.
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The global variable must be approched by the task.
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|EXAMPLE=
 
|EXAMPLE=
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common shared glob_var as long = 8
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MyTask.Prg:
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dim shared stat_var as double = 54.76
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Program
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glob_var = 23
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End Program
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From every context:
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Watch glob_var
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Watch sys.idn[1]
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From MyTask.Prg:
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Watch stat_var
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While MyTask.prg is paused:
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Watch MyTask1.prg stat_var
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While MyTask.prg is paused or killed:
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Watch MyTask1.prg glob_var
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|SEE ALSO=
 
|SEE ALSO=
 
* [[MC-Basic:SAVE|SAVE]]
 
* [[MC-Basic:SAVE|SAVE]]
  
 
}}
 
}}

Revision as of 12:03, 29 July 2020

Language: English  • 中文(简体)‎

There are two types of Watch command available:

Watch command without a task name shows the value of any expression.

Watch command with a task name only exhibits the value of global variables addressed by the task, or static variables declared within the task.

Syntax

Watch <expression>

Watch <task name> <variable_name>

Availability

All versions

Scope

Task or Terminal

Limitations

For Watch command with task name:

The task must exist and must be stopped.

The global variable must be approched by the task.

Examples

common shared glob_var as long = 8

MyTask.Prg:

dim shared stat_var as double = 54.76
Program
glob_var = 23
End Program


From every context:

Watch glob_var 
Watch sys.idn[1]

From MyTask.Prg:

Watch stat_var

While MyTask.prg is paused:

Watch MyTask1.prg stat_var

While MyTask.prg is paused or killed:

Watch MyTask1.prg glob_var

See Also