wiki:Docs/Prog/Manual/DeviceSupport/Display

Table of Contents

  1. 825 Programmer's Manual
  2. Application Libraries
  3. Database Libraries
    1. MySQL Client
    1. About SQLite
    2. SQLite Library (libsql)
      1. Using libsql
    3. SqlBuilder? Class
    4. SQLite++ Class
    5. Using SQLite++ with SqlBuilder?
  4. Standard 825 Library with Application class (lib825)
    1. Utility Functions
  5. Standard 825 Library with EVENT features (lib825ev)
  6. Analog Output (DAC Digital to Analog Conversion) Functions
  7. GetDAC
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  8. GetDACPercent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  9. GetDACRangeFromIndex
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  10. GetIndexFromDACRange
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  11. SetDACFloat
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  12. SetDACOutputRange
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  13. SetDACPercent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  14. SetDACReg
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  15. SetDACTrackGrossNet
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  16. SetDACTrackScale
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  17. StopDACTrackScale
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  18. Display Functions
  19. CBitmap
    1. Constructors
        1. Parameters
        2. Examples
    2. Member Functions
      1. LoadBitmp?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. DeleteBitmap?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      3. Draw
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      4. GetWidth?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      5. GetHeight?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      6. GetColorCnt?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      7. GetColorsAdded?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      8. GetError?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      9. ReclaimColors?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
  20. ClearLCD
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  21. DisplayStr = DEPRECATED, DOES NOT CURRENTLY WORK!!! See DisplayText …
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  22. DisplayText
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  23. GetX
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  24. GetY
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  25. InitLCD
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  26. IsFontLoaded
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  27. LocateLCD
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  28. PrintLCD
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  29. PrintLCDbutton
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  30. PrintLCDfont2
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  31. ReadFont
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  32. SetBkColor
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  33. SetCurColor
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  34. File Functions
  35. CFile
    1. Constructors
        1. Parameters
        2. Examples
    2. Member Functions
      1. Open
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Close
        1. Parameters
        2. Retrun Value
        3. Remarks
        4. Example
      3. SetSerial?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Examples
      4. ReadLine?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      5. DeleteFile?
        1. Parameters
        2. Return value
        3. Remarks
        4. Examples
      6. IsOpen?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      7. IsReady?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      8. SetRTS
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      9. GetFile?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      10. Print
        1. Parameters
        2. Return Value
        3. Remarks
        4. Examples
      11. SetNonBlocking?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      12. Read
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      13. Write
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      14. GetBytesRead?
        1. Parameters
        2. Return Value
        3. Example
      15. GetbytesWritten?
        1. Parameters
        2. Return Value
        3. Example
      16. Seek
  36. IsMounted
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  37. Form Functions
  38. CForm
  39. EVENT
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  40. FORM_ADD_BUTTON
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  41. FORM_ADD_INPUT
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  42. FORM_HIDE
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  43. FORM_INIT
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  44. FORM_RUN
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  45. FORM_SHOW
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  46. Input / Output (Digital I/O) Functions
  47. GetInput
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  48. GetInputMask
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  49. GetOutput
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  50. SetDIOCounter
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  51. SetOutput
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  52. SetOutputMask
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  53. StartDIOPulse
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  54. StartRepeatIO
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  55. StopDIOPulse
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  56. StopRepeatIO
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  57. Keypad/Sound? Functions
  58. ClearKeyBuffer
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  59. OpenBeeper
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  60. PlayNotes
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  61. WaitKeypress
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  62. Process Functions
  63. GetProcessID
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  64. GetProcessIDExcludeSelf
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  65. KillProcess
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  66. ResetPrevGrossWt
  67. ResetPrevNetWt
  68. ResetPrevTareWt
  69. test
  70. String Functions
  71. FloatToStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  72. IntToStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  73. StrFmt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  74. StrFmtLen
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  75. StrToFloat
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  76. StrToInt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  77. StrTrimLeft
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  78. StrTrimRight
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  79. Ticket Functions
  80. CTktFlds
    1. Constructor
        1. Parameters
        2. Examples
    2. Member Functions
      1. Clear
        1. Parameters
        2. Return Value
        3. Remarks
        4. Examples
      2. Set
        1. Parameters
        2. Retrun Value
        3. Remarks
        4. Example
      3. SetEvent?
        1. Parameters
        2. Retrun Value
        3. Remarks
        4. Example
  81. PrintTkt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  82. Time and Date Functions
  83. CMillisecondTimer
    1. Constructors
        1. Parameters
        2. Example
    2. Member Functions
      1. Set
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Clear
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
  84. CSleep
    1. Constructor
        1. Parameters
        2. Example
    2. Member Functions
      1. SetTime?
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Pause
        1. Parameters
        2. Retrun Value
        3. Remarks
        4. Example
  85. CTimer
    1. Constructors
        1. Parameters
        2. Example
    2. Member Functions
      1. Set
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Clear
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
  86. DoSleep
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  87. GetDateStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  88. GetLinuxTime
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  89. GetTimeStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  90. IsTimeChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  91. ResetPrevTime
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  92. SleepMilliseconds
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  93. SleepSeconds
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  94. Utility Functions
  95. GetKernelVer
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  96. GetKernelVerStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  97. GetLoaderVer
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  98. GetLoaderVerStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  99. GetMemFree
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  100. GetMnBdVer
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  101. GetMnBdVerStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  102. Weighing Functions
    1. Minimal Weight Indicator Sample Program
  103. CheckWIM
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  104. FormatGrossWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  105. FormatNetWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  106. FormatTareWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  107. GetBelowZero
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  108. GetCapacity
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  109. GetCenterZero
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  110. GetCurUnitsLabel
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  111. GetDecimal
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  112. GetGrossWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  113. GetInterval
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  114. GetMotion
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  115. GetNetWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  116. GetNumScales
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  117. GetOverCap
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  118. GetProcessScale
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  119. GetSecUnitsLabel
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  120. GetTareWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  121. GetUnitsLabel
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  122. GetWtError
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  123. IsGrossWtChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  124. IsNetWtChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  125. IsTareWtChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  126. IsWtStatusChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  127. IsWtUnitsChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  128. MnBdClearEvent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  129. MnBdClose
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  130. MnBdGetErr
  131. MnBdGetErrMsg
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  132. MnBdGetErrMsgStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  133. MnBdOpen
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  134. MnBdProcess
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  135. MnBdRead
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  136. MnBdRequest
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  137. MnBdSetEvent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  138. MnBdShutdown
  139. MnBdStartup
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  140. ResetPrevGrossWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  141. ResetPrevNetWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  142. ResetPrevTareWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  143. ResetPrevWtStatus
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  144. ResetPrevWtUnits
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  145. SetTareCurrent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  146. SetTareValue
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  147. SetWIM
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  148. StartRepeatMulti
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  149. StartRepeatWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  150. StopRepeatMulti
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  151. StopRepeatWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  152. ZeroScale
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  153. Development Environment
  154. Application Signing
  155. Debugging
    1. GDB
  156. Setup for Software Development
      1. About
      2. Features of the Cardinal 825 Programming Environment
      3. Required Files
      4. Installing the Environment
      5. Starting the Environment
      6. Using the Environment
        1. Welcome Screen
        2. Project Explorer
        3. Task Repositories
        4. Task Queries
        5. Subversion
  157. Version Control
    1. Subversion
      1. About Subversion
      2. Subclipse for Eclipse
        1. Installing Subclipse
          1. Importing Projects Using Subclipse
  158. Device Support
  159. Device Drivers
    1. Overview
  160. Beeper
  161. DIO
    1. Digital I/O
    2. DIO Events
      1. About
      2. The Code
    3. DIO Counting
      1. Description
      2. Example
  162. Display
    1. Fonts
  163. Network
    1. Network File System (NFS)
    2. Weight Server -- Network Access
    3. Network Programming
      1. 825 TCP/IP Server Example
      2. 825 TCP/IP Client Example
    4. Send E-mail from 825
  164. Serial Ports
    1. Using Serial Ports for Linux Shell
    2. Generic Serial Port Use
  165. USB Support
    1. 825 USB A Ports (2)
      1. USB Mass Storage
        1. Accessing USB storage from a program
      2. USB Keyboards
      3. USB Printing
        1. Compatible USB Printers
      4. USB Hubs
    2. 825 USB B Port (1)
      1. USB to PC communications
  166. Weighing
    1. Get Weight
      1. Command prompt testing
      2. Access the weight data from a program
        1. Example of simple weighing program
        2. Example of high Speed weighing of two scales using total mode
  167. Foundation
  168. Application Mode Startup
    1. Introduction
    2. Modules
    3. Appmenu Shell Script
    4. Mounts
    5. Support Applications
  169. Shell operations - Linux / DOS Reference
  170. Mainboard Protocol
  171. Environment Setup
    1. About
    2. Features of the Cardinal 825 Programming Environment
    3. Required Files
    4. Installing the Environment
    5. Starting the Environment
    6. Using the Environment
      1. Welcome Screen
      2. Project Explorer
      3. Task Repositories
      4. Task Queries
      5. Subversion

Display

Multiple fonts are supported using the nano-X (microwindows) .fnt format. The Cardinal SmartWeigh Font converter program may be used to convert TrueType ttf fonts to the .fnt format. Proper licensing must be obtained for any copyrighted fonts to be used.

A special button font is provided with characters that are formatted to be used as buttons for “Zero”, “Tare”, “Gross”, “Net”, “Units”, and “Print”.

Fonts

Fonts are stored in the 825 in files with the Linux nano-X (rockbox) format .fnt. The font folder is /mnt/nand/fonts.

The 825 graphics device driver and the lib825 application library provide functions for loading fonts into RAM memory and displaying text using the loaded fonts

ReadFont

The lib825 function “ReadFont” is used to read and load a font file into RAM.

The parameter nFont is a font number which should be in the range: 1 – 29

The parameter pszFilename is the full path and filename of the font such as:

“/mnt/nand/fonts/Font788_11x2.fnt” (Reminder: Linux path and filenames are case sensitive)

int ReadFont(int nFont, const char* pszFilename)

The return value is zero if successful or one if an error occurred.

DisplayStr

The lib825 function “DisplayStr” is used to display a text string using a specified font.

The parameter nFont is a font number of a font previously loaded into RAM using ReadFont

The parameter x is the X coordinate

The parameter y is the Y coordinate

The parameter dsplogic is the display logic which may be DSP_LOGIC_SET, DSP_LOGIC_XOR, DSP_LOGIC_RESET, or DSP_LOGIC_OVERWRITE

#define DSP_LOGIC_SET 0

#define DSP_LOGIC_XOR 1

#define DSP_LOGIC_RESET 2

#define DSP_LOGIC_OVERWRITE 3

void DisplayStr(int nFont, int x, int y, int dsplogic, const char* p)

Font788.exe

The Windows utility program Font788.exe, previously part of the SmartWeigh install is updated to allow converting 788 fonts or TTF fonts to 825 format. (If your PC does not have the appropriate support files to run this program run the “vcredist.exe” program to install them).

Make sure all font copyrights are observed. Obtain proper licensing for any fonts to be used.

A new menu option “Load built-in font…” is provided.

This allows loading the standard built in fonts.

The “File” “Export” option now allows “Export to 825 format...”

The “Font” menu has an additional feature “Information” which allows detailed viewing and some limited editing of fonts.

Font characters may be modified by clicking the squares representing each pixel. If a pixel which is on is clicked it will be turned off. If a pixel which is off is clicked it will be turned on.

Remote Control using custom fonts

To use apps using custom fonts with remote control the DspApplet.class should be at least version 1.09

The version will show at the bottom of the applet.

A fonts link should be created in the html folder:

This allows the applet to access the fonts in /mnt/nand/fonts from the default html location. [^]

Last modified 8 years ago Last modified on Nov 30, 2009, 2:32:58 PM