Package org.gnome.gtk

Interface PrintOperation.RequestPageSetupCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

PrintOperation

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface PrintOperation.RequestPageSetupCallback
extends FunctionPointer

Functional interface declaration of the RequestPageSetupCallback callback.

See Also:

• run(org.gnome.gtk.PrintContext, int, org.gnome.gtk.PageSetup)

Method Summary

Modifier and Type	Method	Description
void	run(PrintContext context, int pageNr, PageSetup setup)	Emitted once for every page that is printed.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, int, java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment sourcePrintOperation, MemorySegment context, int pageNr, MemorySegment setup)	The upcall method is called from native code.

Method Details

run

void run(PrintContext context,
 int pageNr,
 PageSetup setup)

Emitted once for every page that is printed.

This gives the application a chance to modify the page setup. Any changes done to setup will be in force only for printing this page.

upcall

default void upcall(MemorySegment sourcePrintOperation,
 MemorySegment context,
 int pageNr,
 MemorySegment setup)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.gtk.PrintContext, int, org.gnome.gtk.PageSetup) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, int, java.lang.foreign.MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer