Unable to print a pdf file from powerbuilder

Hello All,

I am trying to print a pdf file from the powerbuilder application.

I have created a global external function

FUNCTION long ShellExecute(long hwnd, string lpOperation, string lpFile, string lpParameters, string lpDirectory, integer nShowCmd ) LIBRARY "shell32.dll" ALIAS FOR "ShellExecuteW"

calling this function in powerbuilder

shellexecute(handle(this) , "print","test.pdf", ls_null, ls_null, 1)

Any idea , Please share.