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Double check that the new firmware is loaded on the NXT brick by selecting Settings and then NXT Version. The FW value should display the current firmware version. The LEGO Education Software Updates web site also contains updates for the NXT-G software as well. These updates happen less often than the firmware updates, but it s still a good idea to check every once in a while just to make sure you have the latest version.

The Activate event happens when the user activates the report by putting the focus on it It is not the same as the Open or Load event, since the report may already be displayed but does not have the focus

of the tool or command, or it may be enhanced with a small feature description You can hide the tips or cause them to be enhanced or not

1 Click the File tab in Word, Excel, Outlook, or PowerPoint, and click Options 2 Click the General option 3 Click the ScreenTip Style drop-down list, and choose the option you want 4 Click OK to finalize the choice

The Click event is fired off when the user clicks the mouse somewhere on the report Do not forget that controls also have their own on-click events, so you need to guard against where the user is clicking

You can enter functions on a worksheet by typing or by a combination of typing and selecting cell references, as described earlier in this chapter for formulas In addition, you can search for and choose functions from Excel s library of built-in functions

176 176

The close event happens when the report is closed, either by the user clicking the Close button, or through your own code You may use this event to open another form by using:

You do not need to type the closing parenthesis; Excel will add it for you when you complete the entry However, it is good practice to include a closing parenthesis for each opening parenthesis This is especially true if you use complex, nested functions that include other functions as arguments (You may nest up to 64 levels!)

If you decide to use RoboLab to program your robot, you will need to make sure it s updated as well by installing the latest firmware and software versions. These can be found on the www.LEGOEngineering.com web site, or you can have the RoboLab software check for updates automatically. RoboLab and NXT-G use different firmware, which is the reason you cannot mix RoboLab programs and NXT-G programs on the same NXT brick. The MINDSTORMS NXT brick comes configured with firmware for NXT-G, so you must, therefore, download new firmware specific to RoboLab before you can begin programming your brick using the RoboLab language. When you start the RoboLab program, there will be a menu item labeled Administrator on the main screen, as shown in Figure 12 4

To type a function in a cell on the worksheet:

The Current event occurs when the user clicks a new row within the report From its name, it is easy to confuse it with the Load event because this means that you are selecting a new record on the form instead of actually loading the form

As you start typing, functions with related spellings are displayed Click any to see a description of the function

The Open event differs from the Load event in that the Open event does not occur until the report query has been run At this point, your report has data on it and your code can interact with it, whereas when a Load event occurs, the controls have not been populated

parenthesis are entered for you Excel displays a tooltip showing arguments and proper syntax for the function

none, one, or both of the following:

A Print event is fired off when a report is printed out This can be used to keep a log of who printed the report out and when

You can create your own functions using Excel s built-in programming language, VBA (Visual Basic for Applications) Using VBA to programmatically customize Excel is beyond the scope of this book