VNC driver

VNC driver

This driver creates a VNC Server, using libvncserver.

Example

Display VNC {
    Driver       'VNC'
    Font         '6x8'
    Port         '5900'
    Xres         '320'
    Yres         '140'
    Bpp          '4'
    Maxclients   '2'
    Buttons      '4'
    Keypadxofs   '40'
    Keypadyofs   '70'
    Keypadygap   '10' 
    Keypadcol    '8745877' 
    Osd_showtime '2000'
    Password     'password'
    Maxfps       '22'
    HttpDir      '/home/code/LibVNCServer-0.9.7/classes'
    HttpPort     '80'
}

Parameters

Driver	'VNC'
Font	font size, specified as <width>x<height> (only '5×8' and '6×8' supported at the moment, default is '5×8')
Port	listening port of the VNC server
Xres	X resolution of the VNC display
Yres	Y resolution of the VNC display
Bpp	bits per pixel of the VNC display, valid values are 1,2 and 4
Maxclients	how many clients can connect to the vnc server
Buttons	use keypad buttons, valid range is 0-6
Keypadxofs	X offset position of the on screen display
Keypadyofs	Y offset position of the on screen display
Keypadygap	Gap in pixels between Keys
Keypadcol	Color (decimal format, baaaaaad) for the keypad frame
Osd_showtime	Time in ms to display the OSD keypad
Password	Adds an unsecure password option. If you need security, use SSH!
Maxfps	Limits the internal fps rate of the driver. -1 disable this feaature
!HttpDir
!HttpPort	listening port of the VNC HTTP server. This option will be ignored if the HttpDir option is missing!

Keyboard

The defined buttons are drawn on the VNC display after you clicked on the screen. The keys are named “Up”, “Down”, “Left”, “Right”, “Commit” and “Cancel”.

Compile

You need libvncserver, zlib and libjpeg to compile this driver.

Advanced Example, with keypad support

Variables {
   tick 500
   tack 100
   minute 60000
   currline 1
}   
    
Display vnc {
    Driver 'VNC'
    Font   '6x8'
    Port       '5900'
    Xres       '320'
    Yres       '140'
    Bpp        '4'
    Maxclients '2'
    Buttons    '4'
    Keypadxofs '40'
    Keypadyofs '70'
    Keypadcol  '8745877'
    Osd_showtime '4000'
}
    
Widget keyup {
    class 'Keypad'
    position 'up'
    state 'pressed'
    expression currline = currline-1
}
    
Widget keydown {
    class 'Keypad'
    position 'down'
    state 'pressed'
    expression currline = currline+1
}

Widget KeypadTest {
    class 'Text'
    expression currline
    prefix 'keypad ['
    update 1000
    width 20
}

Widget ImageTest {
    class 'Image'
    file 'tux.png'
    update 1000
    visible 1
    inverted 1
}

Layout L40x2 {
    Row3 {
        Col5  'OS'
    }
    Row4 {
        Col5  'CPU'
    }
    Row7 {
        Col5  'BarTest'
    }
    Row8 {
        Col5  'KeypadTest'
    }
    Layer 2 {
            X1.Y1 'ImageTest'
    }
    Keypad1 'keyup'
    Keypad2 'keydown'
}

Display 'vnc'
Layout 'L40x2'