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NexVariable Class Reference
Nextion Component

`#include <NexVariable.h>`

Inheritance diagram for NexVariable:

## Public Member Functions

| NexVariable (uint8_t pid, uint8_t cid, const char *name)
uint32_t | getText (char *buffer, uint32_t len)
bool | setText (const char *buffer)
uint32_t | getValue (uint32_t *number)
bool | setValue (uint32_t number)
Public Member Functions inherited from NexTouch
| NexTouch (uint8_t pid, uint8_t cid, const char *name)
void | attachPush (NexTouchEventCb push, void *ptr=NULL)
void | detachPush (void)
void | attachPop (NexTouchEventCb pop, void *ptr=NULL)
void | detachPop (void)
Public Member Functions inherited from NexObject
| NexObject (uint8_t pid, uint8_t cid, const char *name)
void | printObjInfo (void)

## Additional Inherited Members

Static Public Member Functions inherited from NexTouch
static void | iterate (NexTouch **list, uint8_t pid, uint8_t cid, int32_t event)
Protected Member Functions inherited from NexObject
uint8_t | getObjPid (void)
uint8_t | getObjCid (void)
const char * | getObjName (void)

## Detailed Description

NexButton component.

Commonly, you want to do something after push and pop it. It is recommanded that only call NexTouch::attachPop to satisfy your purpose.

Warning
  Please do not call NexTouch::attachPush on this component, even though you can.

## Constructor & Destructor Documentation

NexVariable::NexVariable | ( | uint8_t | pid,
|  | uint8_t | cid,
|  | const char * | name
| ) |  |

Constructor.

Parameters

  pid | - page id.
  cid | - component id.
  name | - pointer to an unique name in range of all components.

## Member Function Documentation

uint32_t NexVariable::getText | ( | char * | buffer,
|  | uint32_t | len
| ) |  |

Get text attribute of component.

Parameters

  buffer | - buffer storing text returned.
  len | - length of buffer.

Returns
  The real length of text returned.

uint32_t NexVariable::getValue | ( | uint32_t * | number | ) |

Get val attribute of component

Parameters

  number | - buffer storing data retur

Returns
  the length of the data

bool NexVariable::setText | ( | const char * | buffer | ) |

Set text attribute of component.

Parameters

  buffer | - text buffer terminated with '\0'.

Returns
  true if success, false for failure.

bool NexVariable::setValue | ( | uint32_t | number | ) |

Set val attribute of component

Parameters

  number | - To set up the data

Returns
  true if success, false for failure

The documentation for this class was generated from the following files:

- NexVariable.h
- NexVariable.cpp