TPrinter.RawModeChanging procedure
Performs actions needed when a new value is assigned to RawMode.
Declaration
procedure RawModeChanging; virtualDescription
RawModeChanging is a virtual procedure used to perform actions
needed when a new value is assigned for the
RawMode property.
RawModeChanging is called from the
SetRawMode method, and occurs
after checking the value in
Printing and before changing values in
PrinterFlags. It is useful when switching from RawMode (which does
not require a printer
Canvas) to using a page description language
like Postscript (which requires a specialized printer Canvas).
In
TPrinter, RawModeChanging has an empty implementation. It must
be overridden in a desecendent class to perform actions needed for the
operating system / widgetset / printer-related technology used in the
implementation.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.