Pervasive Displays Library Suite - Reference Manual 9.0.3
Library for Pervasive Displays e-paper screens, extension boards and development kits
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File_Buffer Class Reference

Screen saved as image header file on SD-card. More...

#include <hV_File_Buffer.h>

Inheritance diagram for File_Buffer:
Collaboration diagram for File_Buffer:

Public Member Functions

 File_Buffer (Screen_EPD *screen)
 Constructor object.
 
uint8_t saveScreen (STRING_CONST_TYPE name)
 Screen saved as image header file to SD-card.
 
uint8_t readScreen (const uint8_t *buffer)
 Read an image from a header file.
 
- Public Member Functions inherited from File_System
 File_System ()
 Constructor.
 
uint8_t beginFileSystem (uint8_t pinCS=NOT_CONNECTED, uint8_t port=0, int8_t pinDetect=-1, int level=LOW)
 File system initialisation.
 
uint8_t endFileSystem ()
 Close file system.
 
uint8_t setFolder (STRING_CONST_TYPE name)
 Set the folder for files.
 
uint8_t suspendFileSystem ()
 Suspend file system.
 
uint8_t resumeFileSystem ()
 Resume file system after suspend.
 
uint8_t saveScreen (STRING_CONST_TYPE name, uint8_t multiplier=1)
 Screen saved as file to SD-card.
 
uint8_t saveWindow (STRING_CONST_TYPE name, uint16_t x0, uint16_t y0, uint16_t dx, uint16_t dy, uint8_t multiplier=1)
 Save partial window as file to SD-card.
 
uint8_t readScreen (STRING_CONST_TYPE name, uint8_t multiplier=1)
 Load and display BMP file.
 
void printFileSystemError ()
 Print the file system error.
 

Detailed Description

Screen saved as image header file on SD-card.

Shared header for Linux and MCU

Note
Header file to be included in project
Warning
MCU requires an SD-card library

Constructor & Destructor Documentation

◆ File_Buffer()

File_Buffer::File_Buffer ( Screen_EPD * screen)

Constructor object.

Parameters
screen&screen to link File_Buffer to

Member Function Documentation

◆ readScreen()

uint8_t File_Buffer::readScreen ( const uint8_t * buffer)

Read an image from a header file.

Frame-buffer updated, flush() required

Note
Image compiled as header file at build-time
Parameters
imageimage_s image
Returns
RESULT_SUCCESS is successful, RESULT_ERROR otherwise
Warning
Use flush() to refresh the panel

◆ saveScreen()

uint8_t File_Buffer::saveScreen ( STRING_CONST_TYPE name)

Screen saved as image header file to SD-card.

Parameters
namefile name, only letters and numbers
Returns
RESULT_SUCCESS is successful, RESULT_ERROR otherwise

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