| QAbstractTextDocumentLayout | Abstract base class used to implement custom layouts for QTextDocuments |
| QByteArray | Array of bytes |
| QByteArrayMatcher | Holds a sequence of bytes that can be quickly matched in a byte array |
| QChar | 16-bit Unicode character |
| QLabel | Text or image display |
| QLatin1Char | 8-bit ASCII/Latin-1 character |
| QLatin1String | Thin wrapper around an ASCII/Latin-1 encoded string literal |
| QLocale | Converts between numbers and their string representations in various languages |
| QString | Unicode character string |
| QStringList | List of strings |
| QStringMatcher | Holds a sequence of characters that can be quickly matched in a Unicode string |
| QTextBlock | Container for text fragments in a QTextDocument |
| QTextBlockFormat | Formatting information for blocks of text in a QTextDocument |
| QTextBrowser | Rich text browser with hypertext navigation |
| QTextCharFormat | Formatting information for characters in a QTextDocument |
| QTextCursor | Offers an API to access and modify QTextDocuments |
| QTextDocument | Holds formatted text that can be viewed and edited using a QTextEdit |
| QTextDocumentFragment | Represents a piece of formatted text from a QTextDocument |
| QTextEdit | Widget that is used to edit and display both plain and rich text |
| QTextFormat | Formatting information for a QTextDocument |
| QTextFrame | Represents a frame in a QTextDocument |
| QTextFrameFormat | Formatting information for frames in a QTextDocument |
| QTextIStream | Convenience class for input streams |
| QTextImageFormat | Formatting information for images in a QTextDocument |
| QTextInlineObject | Represents an inline object in a QTextLayout |
| QTextLayout | Used to lay out and paint a single paragraph of text |
| QTextLength | Encapsulates the different types of length used in a QTextDocument |
| QTextLine | Represents a line of text inside a QTextLayout |
| QTextList | Decorated list of items in a QTextDocument |
| QTextListFormat | Formatting information for lists in a QTextDocument |
| QTextOStream | Convenience class for output streams |
| QTextObject | Base class for different kinds of objects that can group parts of a QTextDocument together |
| QTextStream | Convenient interface for reading and writing text |
| QTextTable | Represents a table in a QTextDocument |
| QTextTableCell | Represents the properties of a cell in a QTextTable |
| QTextTableFormat | Formatting information for tables in a QTextDocument |
