The codeblocks indented below the if line will execute if the condition evaluates to true. Only booleans are accepted in an if block, however, because logic operators return a boolean, they are also accepted in an if.

Myboolean here is a boolean variable created in the variables pane. It has previously been set to true, therefore the if statement evaluates to true and executes Debug Print.

Myboolean here is a boolean variable created in the variables pane. It has previously been set to false. The not logic operator flips a false state to true, therefore the if statement executes when false and runs Debug Print.

Please note, codeblocks within an event execute simultaneously, and in order. This means that a boolean is recommended to be toggled at the beginning or end of your event, otherwise it can cause other control events to fire unintentionally.

This statement uses the equal-to logic operator ( == ) to compare the values of two number inputs. The if statement evaluates to true and executes the Debug Print codeblock.