SAMPLE: LED.EXE: Light Emitting Diode Character Display Sample

MORE INFORMATION

The following is an excerpt from the readme.txt shipped with the sample that covers some of the technical details of this sample.

Definitions

The following properties are available with the LED control:

• LEDColorOn - Assigns the OLE_Color that will be used for the LED segments that are on.
• LEDColorOff - Assigns the OLE_Color that will be used for the LED segments that are off.
• ShowBorder - A Boolean that indicates whether or not to draw a border around the control.
• ShowDecimal - A Boolean that indicates whether or not the decimal indicator is on or off.
• ShowDigit - A Boolean that indicates whether the entire LED should be on or off. Setting this to False will provide a "clear" LED, with all segments being set to off.
  
  NOTE: This does not effect the decimal; use the ShowDecimal to turn the decimal off.
• Value - An integer that holds the value of the LED. If ValueIsMask is set to False, then the range of Value is 0 to 9. If ValueIsMask is set to True, then the range of Value is 0 to 127.
• ValueIsMask - A Boolean that indicates whether the Value property will be used as a single-digit to display on the LED, or that Value is actually a binary-mask, indicating which segments on the LED are to be "turned on".

LED Display

This is a diagram of the "mask values" for the LED:

          ---1---
         |       |
         |       |
         8       16
         |       |
         |       |
          ---2---
         |       |
         |       |
         32      64
         |       |
         |       |
          ---4---
				

To create a "unique" display, just add up the numbers for the segments that you want turned on, set ValueIsMask to True, and assign the value to Value. A few examples would be:

      A      123
      C       45
      E       47
      F       43
      H      122
      -        2
      _        4