Print postscript script giving error on .print(false) JS CS3

Question

I found this example here:
Olav Kvern, "Need script for printing Postscript files (ID CS2)" #4, 19 Nov 2007 4:45 pm
But if the ID doc has a blank page an error on the myDocument.print(flase); will occur.
The message I'm getting is:
The configuration was invalid or the user cancelled. Please try the same operation in the user interface to see more detailed information.
Once you get rid of the blank or add something to the blank the error is gone. Does anyone know how to stop the error if a user adds a blank page?
Cheers.

Answer 1

Thanks priyan, Olav,
I will try your suggestion priyan. If I can check the page itme and get back a null result I should be able to get the for loop to skip to the next page correct?
Olav hope you don't mind but I made a slight change to give the user an option to print a specific page if required. Just a warning the script does not check that the number you enter is part of the doc. So if you doc range is from pages 19 to 24 and you try and print page 2 it will error.
For anyone else out there that finds this useful you can also change the browse option to a drop menu and set the paths for output. This will speed up the process if you have set paths.
Anyway here is the alteration.
//PrintEachPageAsPS.jsx
//An InDesign CS3 JavaScript
//Prints each page of an InDesign document as a PostScript file to
//a selected folder.
main();
function main(){
if(app.documents.length != 0){
//Display a "choose folder" dialog box.
var myFolder = Folder.selectDialog ("Choose a Folder");
if(myFolder != null){
myExportPages(myFolder);
else{
alert("Please open a document and try again.");
function myExportPages(myFolder){
var myPageName, myFilePath, myFile;
var myDocument = app.documents.item(0);
var myDocumentName = myDocument.name;
var myDialog = app.dialogs.add();
with(myDialog.dialogColumns.add()){
staticTexts.add({staticLabel:"Base name:"});
staticTexts.add({staticLabel:"Print only this page:"});
with(myDialog.dialogColumns.add()){
var myBaseNameField = textEditboxes.add({editContents:myDocumentName.substring(0,4), minWidth:160});
var myPageNumberField = integerEditboxes.add({editContents:"", minWidth:80});
var myResult = myDialog.show({name:"PrintEachPageAsPS"});
if(myResult == true){
var myBaseName = myBaseNameField.editContents;
var myPageNum = myPageNumberField.editValue;
//Remove the dialog box from memory.
myDialog.destroy();
//Specify PostScript file and device-independent PostScript.
myDocument.printPreferences.printer = Printer.POSTSCRIPT_FILE;
myDocument.printPreferences.ppd = PPDValues.DEVICE_INDEPENDENT;
if (myPageNum > 0){
myPageName = myPageNum+ "";
myDocument.printPreferences.pageRange = myPageName;
var myRegExp = new RegExp(":","gi");
myPageName = myPageName.replace(myRegExp, "_");
myFilePath = myFolder + "/" + myPageName + "_" + myBaseName + ".ps";
myFile = new File(myFilePath);
document.printPreferences.printFile = myFile;
myDocument.print(false);
}else{
for(var myCounter = 0; myCounter < myDocument.pages.length; myCounter++){
myPageName = myDocument.pages.item(myCounter).name;
myDocument.printPreferences.pageRange = myPageName;
//The name of the exported files will be the base name + the page name + ".pdf".
//If the page name contains a colon (as it will if the document contains sections),
//then remove the colon.
var myRegExp = new RegExp(":","gi");
myPageName = myPageName.replace(myRegExp, "_");
myFilePath = myFolder + "/" + myPageName + "_" + myBaseName + ".ps";
myFile = new File(myFilePath);
document.printPreferences.printFile = myFile;
myDocument.print(false);
alert("Done!");
else{
myDialog.destroy();