How change papersize programmatically?

Hi!

   I'm developing a database-application, in which I wanna make printouts on any papersize supported by the printer. My question is this:

   The user of the application has told the program that he/she wants a report written on portait-orientated A4-sized paper (210 * 297 mm). How do I change the printer's papersize programmatically, if it's not set to the requested size? I don't want to tell the user to open up the "Printer Setup" dialog,
   I wanna do it totally automatic. I can solve the orientation bit, but how do I change the papersize?
   I'm using Delphi 2.0.


                  Thanks for your help!!

//Daniel Persson, Malmoe, Sweden
DippenAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

DippenAuthor Commented:
Edited text of question
0
pivarCommented:
Hej Daniel,

This sample code should do the trick:

---------------------------------------------------
var
  pDevMode: PDeviceMode;
  devHandle: THandle;
  device,driver,port: Array[0..255] of AnsiChar;
begin
  Printer.GetPrinter(device,driver,port,devHandle);
  pDevMode := GlobalLock(devHandle);
  pDevMode.dmFields := pDevMode.dmFields or DM_PAPERSIZE;
  pDevMode.dmPaperSize := DMPAPER_A4;
  GlobalUnlock(devHandle);

  Printer.BeginDoc;
etc...
---------------------------------------------------
With this you should be able to change other things as well, the orientation for example. Look in the WIN32 help, item DEVMODE.

If you haven't used Printer before the first line: Printer.GetPrinter, you will get an AccessViolation error. I haven't solved this yet,  but since the printer object is initialized when you use it the first time, I suspect it has to do with the printer object not been initialized before GetPrinter is run. To get around this you only have to use Printer before this. For example, get the printer name. 'name := Printer.Printers[Printer.PrinterIndex]'.

This code uses the Printer-objects internal DEVMODE structure to change the items you want.

/pivar
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
DippenAuthor Commented:
Thanks for your simple and perfectly working answer, pivar!
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Delphi

From novice to tech pro — start learning today.