Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Copy the following index.html file from the code folder of Chapter 5 to your computer's hard drive."

A block of code is set as follows:

// Set the picture size - you can choose one of 640x480, 320x240 or 160x120 
 // Remember that bigger pictures take longer to transmit!
 cam.setImageSize(VC0706_640x480);  // biggest
 //cam.setImageSize(VC0706_320x240);  // medium
 //cam.setImageSize(VC0706_160x120);   // small

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

int32_t WiFiDrv::getCurrentRSSI()
{
  startScanNetworks();
  WAIT_FOR_SLAVE_SELECT();
  // Send Command
  SpiDrv::sendCmd(GET_CURR_RSSI_CMD, PARAM_NUMS_1);

Any command-line input or output is written as follows:

>python your_python_script.py

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Click on the Create an App link if it is not selected by default."