These classes are complex widgets, composed of simpler widgets; dialog boxes, generally.
| QColorDialog | Dialog widget for specifying colors |
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| QDialog | The base class of dialog windows |
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| QErrorMessage | Error message display dialog |
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| QFileDialog | Dialog that allow users to select files or directories |
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| QFontDialog | Dialog widget for selecting a font |
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| QInputDialog | Simple convenience dialog to get a single value from the user |
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| QMessageBox | Modal dialog for informing the user or for asking the user a question and receiving an answer |
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| QPrintDialog | Dialog for specifying the printer's configuration |
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| QProgressDialog | Feedback on the progress of a slow operation |
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