SDL_RWops (LibSDL4J 2.26.1-1.1 API)

java.lang.Object
- com.sun.jna.Structure
- - io.github.libsdl4j.api.rwops.SDL_RWops

```
@FieldOrder({"size","seek","read","write","close","type","hidden"})
public final class SDL_RWops
extends com.sun.jna.Structure
```
This is a structure that holds references to functions for IO operations (read/write/seek).
It is advisable to keep a reference to this class forever (more precisely, as long as the callbacks are valid) and reuse it to limit repeated creation of multiple JNA callback objects.

Nested Class Summary
- Nested classes/interfaces inherited from class com.sun.jna.Structure
  com.sun.jna.Structure.ByReference, com.sun.jna.Structure.ByValue, com.sun.jna.Structure.FieldOrder, com.sun.jna.Structure.StructField

Field Summary

Fields
Modifier and Type	Field	Description
`SDL_RWCloseFunction`	`close`	A function that knows how to close a file.
`SDL_RWopsPlatformSpecific`	`hidden`
`SDL_RWReadFunction`	`read`	A function that knows how to read up to `maxnum` objects each of `size` from the data stream to the area pointed at by `ptr`.
`SDL_RWSeekFunction`	`seek`	A function that knows how to seek to `offset` relative to `whence`, one of stdio's whence values: RW_SEEK_SET, RW_SEEK_CUR, RW_SEEK_END
`SDL_RWSizeFunction`	`size`	A function that knows how to figure out the size of the file in this rwops, or -1 if unknown
`int`	`type`
`SDL_RWWriteFunction`	`write`	A function that knows how to write exactly `num` objects each of `size` from the area pointed at by `ptr` to data stream.

Fields inherited from class com.sun.jna.Structure
ALIGN_DEFAULT, ALIGN_GNUC, ALIGN_MSVC, ALIGN_NONE, CALCULATE_SIZE

Constructor Summary

Constructors
Constructor Description

SDL_RWops()

SDL_RWops(com.sun.jna.Pointer p)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

void read()
- Methods inherited from class com.sun.jna.Structure
  allocateMemory, allocateMemory, autoAllocate, autoRead, autoRead, autoWrite, autoWrite, cacheTypeInfo, calculateSize, clear, createFieldsOrder, createFieldsOrder, createFieldsOrder, createFieldsOrder, dataEquals, dataEquals, ensureAllocated, equals, fieldOffset, getAutoRead, getAutoWrite, getFieldList, getFieldOrder, getFields, getNativeAlignment, getNativeSize, getNativeSize, getPointer, getStringEncoding, getStructAlignment, hashCode, newInstance, newInstance, readField, readField, setAlignType, setAutoRead, setAutoSynch, setAutoWrite, setStringEncoding, size, sortFields, toArray, toArray, toString, toString, useMemory, useMemory, write, writeField, writeField, writeField
- Methods inherited from class java.lang.Object
  clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - size
```
public SDL_RWSizeFunction size
```
    A function that knows how to figure out the size of the file in this rwops, or -1 if unknown
  - seek
```
public SDL_RWSeekFunction seek
```
    A function that knows how to seek to offset relative to whence, one of stdio's whence values: RW_SEEK_SET, RW_SEEK_CUR, RW_SEEK_END
  - read
```
public SDL_RWReadFunction read
```
    A function that knows how to read up to maxnum objects each of size from the data stream to the area pointed at by ptr.
  - write
```
public SDL_RWWriteFunction write
```
    A function that knows how to write exactly num objects each of size from the area pointed at by ptr to data stream.
  - close
```
public SDL_RWCloseFunction close
```
    A function that knows how to close a file.
  - type
```
public int type
```
  - hidden
```
public SDL_RWopsPlatformSpecific hidden
```
- Constructor Detail
  - SDL_RWops
```
public SDL_RWops()
```
  - SDL_RWops
```
public SDL_RWops(com.sun.jna.Pointer p)
```
- Method Detail
  - read
```
public void read()
```
    Overrides:
    
    read in class com.sun.jna.Structure