Package org.gnome.gdkpixbuf

Interface PixbufModuleBeginLoadFunc

All Superinterfaces:

FunctionPointer

Functional Interface:

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

@FunctionalInterface
@Generated("io.github.jwharm.JavaGI")
public interface PixbufModuleBeginLoadFunc
extends FunctionPointer

Functional interface declaration of the PixbufModuleBeginLoadFunc callback.

See Also:

• run(org.gnome.gdkpixbuf.PixbufModuleSizeFunc, org.gnome.gdkpixbuf.PixbufModulePreparedFunc)

Method Summary

Modifier and Type	Method	Description
MemorySegment	run(@Nullable PixbufModuleSizeFunc sizeFunc, @Nullable PixbufModulePreparedFunc preparedFunc)	Sets up the image loading state.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default MemorySegment	upcall(MemorySegment sizeFunc, MemorySegment preparedFunc, MemorySegment updatedFunc, MemorySegment userData, MemorySegment _gerrorPointer)	The upcall method is called from native code.

Method Details

run

MemorySegment run(@Nullable PixbufModuleSizeFunc sizeFunc,
 @Nullable PixbufModulePreparedFunc preparedFunc)
           throws GErrorException

Sets up the image loading state.

The image loader is responsible for storing the given function pointers and user data, and call them when needed.

The image loader should set up an internal state object, and return it from this function; the state object will then be updated from the GdkPixbuf.PixbufModuleIncrementLoadFunc callback, and will be freed by GdkPixbuf.PixbufModuleStopLoadFunc callback.

Throws:

GErrorException

upcall

default MemorySegment upcall(MemorySegment sizeFunc,
 MemorySegment preparedFunc,
 MemorySegment updatedFunc,
 MemorySegment userData,
 MemorySegment _gerrorPointer)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.gdkpixbuf.PixbufModuleSizeFunc, org.gnome.gdkpixbuf.PixbufModulePreparedFunc) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer