QueryAllTasks Task

This task returns a hash where each key is the task name and each task name key contains a hash of the task's properties.

Example

; Start the application

e = ENVI(/HEADLESS)

; Get the task from the catalog of ENVITasks

Task = ENVITask('QueryAllTasks')

; Return only the ENVI tasks that

; compute convolution filters

Task.FILTER_TAGS = ['ENVI', 'Convolution Filters']

; Run the task

Task.Execute

; Print the tasks and parameters

Print, Task.TASK_DEFINITIONS

Syntax

Result = ENVITask('QueryAllTasks')

Input parameters (Set, Get): FILTER_TAGS

Output parameters (Get only): TASK_DEFINITIONS

Parameters marked as "Set" are those that you can set to specific values. You can also retrieve their current values any time. Parameters marked as "Get" are those whose values you can retrieve but not set.

Input Parameters

FILTER_TAGS (optional)

Set this parameter to an array of tags used to filter the queried tasks. ENVIQueryAllTasksTask returns tasks that meet the criteria for all specified tags, not just some of them. The tags are not case-sensitive. If no results are found, TASK_DEFINITIONS returns a value of !NULL.