| STDIO.H, PATH, C:\BIN, LIB, DX |
Uppercase letters indicate filenames, segment names, registers, and terms used at the DOS-command level. |
| _cdecl, int, printf, alloc_text, #undef, DosCreateThread |
Boldface letters indicate C keywords, operators, language-specific characters, and library functions, as well as OS/2 functions. |
| switch( Msg ) |
This font is used for examples, user input, program output, and error messages in text. |
| if (expression) statement1 |
Italic letters indicate placeholders for information you must supply, such as a filename. Italics are also occasionally used for emphasis in the text. |
| [[option]] |
Items inside double square brackets are optional. |
| #pragma pack {1|2} |
Braces and a vertical bar indicate a choice among two or more items. You must choose one of these items unless double square brackets surround the braces. |
| LIB options [[file...]] |
Three dots following an item indicate that more items having the same form may appear. |
| while() { . . . } |
A column of three dots means that part of the example program was intentionally omitted. |
| CTRL+ENTER |
Small capital letters are used for the names of keys on the keyboard. When you see a plus sign (+) between two key names, you should hold down the first key while pressing the second. The carriage-return key, sometimes appearing as a bent arrow on the keyboard, is called ENTER. |
| Enhanced Graphics Adapter (EGA) |
The first time an acronym is used, it is often spelled out. |
| “argument” |
Quotation marks enclose a new term the first time it is defined in text. |