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- ----------------------------------------------------------------
-
- LED2 VBX Control
-
- Copyright 1994 Northeast Data Corp.
-
- All Rights Reserved
-
- ----------------------------------------------------------------
-
-
- Release 1.0
-
- March 1994
-
-
- This document describes the LED2 Custom VBX Control.
-
-
- CONTENTS
-
- 1. Product Description
- 2. Legal Information
- 3. Installation
- 4. Usage
- 5. Ordering Information
-
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-
- 1. Product Description
-
- The LED2 VBX Control is a Microsoft Windows DLL designed and
- implemented in compliance with Microsoft standards for
- interfacing with Visual Basic.
-
- The control appears to the end user as a LED Meter similar to those
- used on audio/video equipment such as stereos, tuners, and amplifiers.
-
- To the application programmer, the interface to the LED2 control is
- simple. Simply set the value property to a number and the LED2 control
- will turn 'on' that number of segments. Properties also exist to set
- the actual number of segments as well as their spacing and width.
-
- Being a VBX control, the programmer can add the LED2 Control to the
- tool palette in Visual Basic. This allows use of the control in Visual
- Basic forms. Since Visual C++ supports use of VBX controls, the LED2
- control can also be used in the Visual C++ environment.
-
- Use of the LED2 Control in a finished application requires the
- LED2 Control DLL (LED2.vbx) to be installed with the application.
- This is true of all custom controls written for MS Windows.
-
- There are properties available that allow the programmer to control
- the behavior and appearance of the LED2 Control. The control can be
- set so that the light segments are displayed either horizontal or
- vertical. The LED2 control can also have it's segments light up from
- left to right, right to left, bottom to top or top to bottom. The
- thickness of the segments and the spacing between the segments
- can be set as well as any colors used in drawing the LED2 control.
-
- All communication between the LED2 Control and the application is
- performed using the standard Windows message mechanism for controls.
-
- -------------------------------------------------------------------
-
- 2. Legal Information
-
- The purchaser of the LED2 Control is allowed to use it and
- distribute it in applications without paying any royalty, and without
- printing or displaying a copyright notice for the control. This only
- includes distribution of the LED2 Control DLL (LED2.VBX). It does
- not include distribution of documentation that comes with the LED2
- Control.
-
- The purchaser of the LED2 Control may distribute the control DLL with
- applications that are networked (multiple users accessing the DLL from
- a file server) without paying any license fees to Northeast Data Corp.
-
-
- -------------------------------------------------------------------
-
- 3. Installation
-
- Create a "LED2" directory on your hard disk and copy all files from
- the distribution disk to the directory. These files include:
-
-
- LED2.VBX
- FORM1.FRM
- PROJECT1.MAK
- README.TXT
- PROJECT1.EXE
-
- If you have downloaded the LED2_100.zip file from Compuserve, use
- PKUNZIP to extract the files into the directory.
-
- Start Visual Basic or the Visual C++ App Studio applications and use
- the custom control installation function to install the LED2.vbx
- control.
-
-
- -------------------------------------------------------------------
-
- 4. Usage
-
-
- PROPERTIES
- ----------
-
- BackColor - Sets the background color.
-
- DarkColor - Sets the color of the segments when they are off.
-
- Direction - Sets the direction the segments light up.
- 0 - Normal, 1 - Reversed
-
- Height - Height of control.
-
- HighliteColor - Sets the upper bevel color.
-
- InnerSpace - Sets the number of pixels between segments.
-
- LEDType - 0 - Horizontal, 1 - Vertical
-
- Left - Left position.
-
- LightColor - Sets the color of the segments when they are on.
-
- Segments - Sets the number of segments in the meter.
-
- ShadowColor - Sets the color of the lower bevel.
-
- SideSpace - Sets the number of pixels before the first segment
- is drawn.
-
- Thickness - Sets how thick each segment is.
-
- Top - Top of control window.
-
- Value - Sets the number of segments that should be turned on.
-
- Visible - Visible/Invisible attribute.
-
- Width - Width of control.
-
-
- EVENTS
- ------
-
- No events are supported.
-
-
- Ordering Information
- --------------------
-
- To order the commercial version of the LED2 Control, send a check to:
-
- Northeast Data Corp.
- 2117 Buffalo Rd., Suite 290
- Rochester, NY 14624
-
- The prices are:
-
- LED2 VBX Control (for Visual Basic and Visual C++) - $55
-
- LED2 DLL Custom Control (for C) - $50
-
- Both controls - $75
-
- Source code (includes both controls) - $235
-
-
- Include your phone number and Compuserve ID if applicable. In return for
- your check, you will get the software, a telephone number for support, and
- a Compuserve ID for support.
-