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return

InstallShield 2013 » InstallScript Language Reference

You can use the return statement to return a value from a user-defined function (if the function prototype does not specify a return type of void). When a return statement is encountered, program flow returns to the point at which the function was called. When used to return from a call to a user-defined function, the return statement can return a specified value to the caller.

The return value of most built-in functions will be either 0 (zero), indicating the success of the function, or a value less than zero (< 0), indicating failure. You can assign a number to the return value by using a return statement above the end statement in the function block, as shown below:

    return -1;

end;

This attribute allows you to return the value of a local variable to the caller, even though the local variable itself is destroyed:

function MyFunction(ParamOne, ParamTwo)

    NUMBER nNumber;

begin

    nNumber = (ParamOne + ParamTwo);

    // . . .

    return nNumber;

end;