Message Pair to Var

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This block converts an input message pair to the value of a gnuradio variable.

Added in 3.9


(R): Run-time adjustable

Name of the variable to be set. type: string; default: 'freq'


Input message pairs are of the form (<name> . <value>). For this block, <name> is ignored. The variable to be set is specified as a block parameter. More information on PMTs in general can be found in PMT Pairs.

Example Flowgraph

In this flowgraph, the input message has the name 'value' and the value of 1 or 0. The Message Pair to Var Block Variable has the value "pressed", so it sets the variable "pressed" to 1. The QT_GUI_Label displays the value of "pressed".

Msg pair to var fg.png

Example Output

Msg pair to var out.png

Source Files

C++ files
Header files
Public header files
Block definition