Runtime Updating Variables: Difference between revisions
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[[File:SearchQTGUIRange.png|700px]] | [[File:SearchQTGUIRange.png|700px]] | ||
Drag and drop the ''QT GUI Range'' block into the workspace: | |||
[[File:DragDropQTGUIRange.png|600px]] | |||
The ''QT GUI Range'' acts similarly to a variable block. The default parameters for the ''QT GUI Range'' need to be set. Double-click on it | |||
Revision as of 16:06, 4 January 2022
This section will describe how to update variables while a flowgraph is running using QT GUI Widgets. Please review the previous tutorial, Variables in Flowgraphs, for an introduction to variables.
QT GUI Range
The GNU Radio block library comes with a handful of QT GUI widgets which allow a user to interact and change a flowgraph while it is running. The QT GUI Range creates a slider bar that can be used to update a variable.
Search for range in the block library:
Drag and drop the QT GUI Range block into the workspace:
The QT GUI Range acts similarly to a variable block. The default parameters for the QT GUI Range need to be set. Double-click on it
TODO: using other QT blocks