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%if keyword (SDL script)
The %if keyword starts an if...then...else statement and specifies the condition to be evaluated. if...then...else statements can be nested.
For more information about if...then...else statements, see if...then...else statement (SDL script).
Syntax
%if <condition> %then
<set of statements for when condition is satisfied>
[%else
<set of statements for when condition is not satisfied>]
%endif
In this example the value of the Return Type property is evaluated. If the value of the Return Type property is void, 'return;' is generated, if the value is not void, 'return ReturnValue;' is generated.
%if %custom "Return Type" == "void" %then
"return;"
%else
"return ReturnValue;"
%endif