How to show printer properties/preferences dialog and save changes?

Question

EDIT: My fault! I expected the changes to be written back to the default printer settings when in fact only the local instance of the PrinterSettings are changed. -

Answer 1

• when your application started up:
  • have you queried the printer driver for the correct size of the DEVMODE structure before allocating it?
  • have you asked the device driver to initialize the DEVMODE buffer with the default settings after you have allocated it?
• when your application popped up the printer dialog:
  • have you set the DM_IN_BUFFER and DM_OUT_BUFFER flags (in addition to DM_IN_PROMPT) in the fMode parameter to DocumentProperties?
  • have you pointed both pDevModeInput and pDevModeOutput to the DEVMODE buffer you initialized at application startup?
  • are the dmFields bits in the DEVMODE buffer properly set prior to your calling DocumentProperties(... DM_IN_PROMPT ...)
  • are you preserving the contents of the DEVMODE buffer in between calls to DocumentProperties(... DM_IN_PROMPT ...)?

See:

• How To Modify Printer Settings with the DocumentProperties() Function
• Using the Document Properties Dialog Box
• the DocumentProperties Function