ASP.NET PDF Viewer using C#, VB/NET

Figure 7-11. The Loaded Scripts window displays all the scripts available within the current browser window.

Surprisingly, LEGO didn t provide the RCX with a Sound Sensor and dropped it with the NXT2. Because it s such a natural type of input, the Sound Sensor was one of the first sensors to be widely homebrewed. The NXT Sound Sensor (see Figure 1-12) is constructed much like the Light Sensor.

"I wandered lonely as a cloud" "That floats on high o'er vales and hills," "When all at once I saw a crowd," "A host, of golden daffodils"

excel barcodes not working, microsoft barcode control excel 2010, download barcode macro for excel, barcode font in excel 2007, barcode generator excel vba, free excel ean barcode font, how to make barcodes in excel, free barcode generator excel add in, using barcode font in excel 2010, barcode font for excel 2010,

The Source Code window lists the source code for the currently open file. The file could be an HTML file, XHTML file, or JavaScript file. The Source Code window implements a tabbed theme so multiple files can be open at the same time, with each file residing in its own tab. The code has some simple colorization that improves readability. JavaScript keywords such as function and var have bold formatting, while string literals have a different colored font. On the left side of the window is the line numbering for the file. The far-left side of the Source Code window is the gutter on which debugging breakpoints can be set.

It s not quite true that the only functions that return unit type can be used in this manner; however, using them with a type other than unit will generate a warning, which is something most programmers want to avoid. So, to avoid this, it s sometimes useful to turn a function that does return a value into a function of type unit, typically because it has a side effect. The need to do this is fairly rare when just using F# libraries written in F# (although situations where it is useful do exist), but it is more common when using .NET libraries that were not written in F#.

In Figure 1-13 you can see the microphone mounted in plastic foam, a capacitor, and the connector on the top of the PCB with the rest of the electronics mounted on the bottom.

The next example shows how to turn a function that returns a value into a function that returns unit: #light let getShorty() =

Breakpoints are the feature that really make debuggers useful. They allow you to suspend the execution of code at a point of your choosing, giving you the opportunity to inspect various variables and properties to determine the cause of bugs. Venkman supports two kinds of breakpoints: hard breakpoints and future breakpoints. This is a departure from most debugging environments, so we ll discuss the difference between the two. A hard breakpoint is the type of breakpoint you re used to seeing in modern programming languages such as Java. It instructs Venkman to suspend processing at the breakpoint. Execution cannot continue until the user instructs it to do so. In Venkman, a hard breakpoint always exists within the body of a function. A future breakpoint is similar to a hard breakpoint in that it instructs Venkman to suspend execution of the JavaScript at the breakpoint. The difference between the two is that a future breakpoint is set on lines that do not exist within the body of a function. These lines of code are executed as soon as they are loaded by the browser. In contrast, code that resides within the body of a function is not executed until the function is executed in response to some action or event. Figure 7-13 shows an example page loaded with JavaScript code that has two breakpoints. The embedded JavaScript code has both a function that contains code and code that exists outside a function body. The code within the function has a hard breakpoint, and the code outside the function has a future breakpoint.

Figure 1-13. Sound Sensor breakdown Sound volume or sound pressure level (SPL) is measured in units called decibels (dB). Instead of an absolute measurement such as lux, decibels measure how much a sound level is relatively louder or softer than another sound. In this case, 0dB is the faintest sound that an average person can hear. Table 1-1 lists some typical dB values. Table 1-1. Sound Pressure Levels

"shorty"