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CSFML 2.6.1

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Functions
Packet.h File Reference
`#include <SFML/Network/Export.h>`
`#include <SFML/Network/Types.h>`
`#include <stddef.h>`

Go to the source code of this file.

## Functions
sfPacket * | sfPacket_create (void)
| Create a new packet.
sfPacket * | sfPacket_copy (const sfPacket *packet)
| Create a new packet by copying an existing one.
void | sfPacket_destroy (sfPacket *packet)
| Destroy a packet.
void | sfPacket_append (sfPacket *packet, const void *data, size_t sizeInBytes)
| Append data to the end of a packet.
size_t | sfPacket_getReadPosition (const sfPacket *packet)
| Get the current reading position in the packet.
void | sfPacket_clear (sfPacket *packet)
| Clear a packet.
const void * | sfPacket_getData (const sfPacket *packet)
| Get a pointer to the data contained in a packet.
size_t | sfPacket_getDataSize (const sfPacket *packet)
| Get the size of the data contained in a packet.
sfBool | sfPacket_endOfPacket (const sfPacket *packet)
| Tell if the reading position has reached the end of a packet.
sfBool | sfPacket_canRead (const sfPacket *packet)
| Test the validity of a packet, for reading.
sfBool | sfPacket_readBool (sfPacket *packet)
| Functions to extract data from a packet.
sfInt8 | sfPacket_readInt8 (sfPacket *packet)
sfUint8 | sfPacket_readUint8 (sfPacket *packet)
sfInt16 | sfPacket_readInt16 (sfPacket *packet)
sfUint16 | sfPacket_readUint16 (sfPacket *packet)
sfInt32 | sfPacket_readInt32 (sfPacket *packet)
sfUint32 | sfPacket_readUint32 (sfPacket *packet)
float | sfPacket_readFloat (sfPacket *packet)
double | sfPacket_readDouble (sfPacket *packet)
void | sfPacket_readString (sfPacket *packet, char *string)
void | sfPacket_readWideString (sfPacket *packet, wchar_t *string)
void | sfPacket_writeBool (sfPacket *packet, sfBool)
| Functions to insert data into a packet.
void | sfPacket_writeInt8 (sfPacket *packet, sfInt8)
void | sfPacket_writeUint8 (sfPacket *packet, sfUint8)
void | sfPacket_writeInt16 (sfPacket *packet, sfInt16)
void | sfPacket_writeUint16 (sfPacket *packet, sfUint16)
void | sfPacket_writeInt32 (sfPacket *packet, sfInt32)
void | sfPacket_writeUint32 (sfPacket *packet, sfUint32)
void | sfPacket_writeFloat (sfPacket *packet, float)
void | sfPacket_writeDouble (sfPacket *packet, double)
void | sfPacket_writeString (sfPacket *packet, const char *string)
void | sfPacket_writeWideString (sfPacket *packet, const wchar_t *string)

## Function Documentation

## ◆ sfPacket_append()

void sfPacket_append | ( | sfPacket * | packet,
|  | const void * | data,
|  | size_t | sizeInBytes )

Append data to the end of a packet.

Parameters

  packet | Packet object
  data | Pointer to the sequence of bytes to append
  sizeInBytes | Number of bytes to append

## ◆ sfPacket_canRead()

sfBool sfPacket_canRead | ( | const sfPacket * | packet | ) |

Test the validity of a packet, for reading.

This function allows to test the packet, to check if a reading operation was successful.

A packet will be in an invalid state if it has no more data to read.

Parameters

  packet | Packet object

Returns
  sfTrue if last data extraction from packet was successful

## ◆ sfPacket_clear()

void sfPacket_clear | ( | sfPacket * | packet | ) |

Clear a packet.

After calling Clear, the packet is empty.

Parameters

  packet | Packet object

## ◆ sfPacket_copy()

sfPacket * sfPacket_copy | ( | const sfPacket * | packet | ) |

Create a new packet by copying an existing one.

Parameters

  packet | Packet to copy

Returns
  A new sfPacket object which is a copy of packet

## ◆ sfPacket_create()

sfPacket * sfPacket_create | ( | void |  | ) |

Create a new packet.

Returns
  A new sfPacket object

## ◆ sfPacket_destroy()

void sfPacket_destroy | ( | sfPacket * | packet | ) |

Destroy a packet.

Parameters

  packet | Packet to destroy

## ◆ sfPacket_endOfPacket()

sfBool sfPacket_endOfPacket | ( | const sfPacket * | packet | ) |

Tell if the reading position has reached the end of a packet.

This function is useful to know if there is some data left to be read, without actually reading it.

Parameters

  packet | Packet object

Returns
  sfTrue if all data was read, sfFalse otherwise

## ◆ sfPacket_getData()

const void * sfPacket_getData | ( | const sfPacket * | packet | ) |

Get a pointer to the data contained in a packet.

Warning: the returned pointer may become invalid after you append data to the packet, therefore it should never be stored. The return pointer is NULL if the packet is empty.

Parameters

  packet | Packet object

Returns
  Pointer to the data

## ◆ sfPacket_getDataSize()

size_t sfPacket_getDataSize | ( | const sfPacket * | packet | ) |

Get the size of the data contained in a packet.

This function returns the number of bytes pointed to by what sfPacket_getData returns.

Parameters

  packet | Packet object

Returns
  Data size, in bytes

## ◆ sfPacket_getReadPosition()

size_t sfPacket_getReadPosition | ( | const sfPacket * | packet | ) |

Get the current reading position in the packet.

The next read operation will read data from this position

Returns
  The byte offset of the current read position

See also
  append

## ◆ sfPacket_readBool()

sfBool sfPacket_readBool | ( | sfPacket * | packet | ) |

Functions to extract data from a packet.

Parameters

  packet | Packet object

## ◆ sfPacket_readDouble()

double sfPacket_readDouble | ( | sfPacket * | packet | ) |

## ◆ sfPacket_readFloat()

float sfPacket_readFloat | ( | sfPacket * | packet | ) |

## ◆ sfPacket_readInt16()

sfInt16 sfPacket_readInt16 | ( | sfPacket * | packet | ) |

## ◆ sfPacket_readInt32()

sfInt32 sfPacket_readInt32 | ( | sfPacket * | packet | ) |

## ◆ sfPacket_readInt8()

sfInt8 sfPacket_readInt8 | ( | sfPacket * | packet | ) |

## ◆ sfPacket_readString()

void sfPacket_readString | ( | sfPacket * | packet,
|  | char * | string )

## ◆ sfPacket_readUint16()

sfUint16 sfPacket_readUint16 | ( | sfPacket * | packet | ) |

## ◆ sfPacket_readUint32()

sfUint32 sfPacket_readUint32 | ( | sfPacket * | packet | ) |

## ◆ sfPacket_readUint8()

sfUint8 sfPacket_readUint8 | ( | sfPacket * | packet | ) |

## ◆ sfPacket_readWideString()

void sfPacket_readWideString | ( | sfPacket * | packet,
|  | wchar_t * | string )

## ◆ sfPacket_writeBool()

void sfPacket_writeBool | ( | sfPacket * | packet,
|  | sfBool | )

Functions to insert data into a packet.

Parameters

  packet | Packet object

## ◆ sfPacket_writeDouble()

void sfPacket_writeDouble | ( | sfPacket * | packet,
|  | double | )

## ◆ sfPacket_writeFloat()

void sfPacket_writeFloat | ( | sfPacket * | packet,
|  | float | )

## ◆ sfPacket_writeInt16()

void sfPacket_writeInt16 | ( | sfPacket * | packet,
|  | sfInt16 | )

## ◆ sfPacket_writeInt32()

void sfPacket_writeInt32 | ( | sfPacket * | packet,
|  | sfInt32 | )

## ◆ sfPacket_writeInt8()

void sfPacket_writeInt8 | ( | sfPacket * | packet,
|  | sfInt8 | )

## ◆ sfPacket_writeString()

void sfPacket_writeString | ( | sfPacket * | packet,
|  | const char * | string )

## ◆ sfPacket_writeUint16()

void sfPacket_writeUint16 | ( | sfPacket * | packet,
|  | sfUint16 | )

## ◆ sfPacket_writeUint32()

void sfPacket_writeUint32 | ( | sfPacket * | packet,
|  | sfUint32 | )

## ◆ sfPacket_writeUint8()

void sfPacket_writeUint8 | ( | sfPacket * | packet,
|  | sfUint8 | )

## ◆ sfPacket_writeWideString()

void sfPacket_writeWideString | ( | sfPacket * | packet,
|  | const wchar_t * | string )