Functions

All built-in PowerScript functions return a value. You can use the return value or ignore it. User-defined functions and external functions might or might not return a value.

To use a return value, assign it to a variable of the appropriate datatype or call the function wherever you can use a value of that datatype.

Posting a function If you post a function, you cannot use its return value.

Examples

The built-in Asc function takes a string as an argument and returns the ASCII value of the string’s first character:

string S1 = "Carton"
int Test
Test=32+Asc(S1)   // Test now contains the value 99

                 // (the ASCII value of "C" is 67).

The SelectRow function expects a row number as the first argument. The return value of the GetRow function supplies the row number:

dw_1.SelectRow(dw_1.GetRow(), true)

To ignore a return value, call the function as a single statement:

Beep(4)       // This returns a value, but it is 
               // rarely needed.