| title | Using CToolTipCtrl | Microsoft Docs | ||
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| ms.date | 11/04/2016 | ||
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| ms.topic | conceptual | ||
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| ms.assetid | 8fc58a04-4792-4223-a092-d349d11344da | ||
| author | mikeblome | ||
| ms.author | mblome | ||
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The CToolTipCtrl class encapsulates the functionality of a tool tip control, a small pop-up window that displays a single line of text describing the purpose of a tool in an application. A tool tip is hidden most of the time, appearing only when the user puts the cursor on a tool and leaves it there for approximately one-half second. The tool tip appears near the cursor and disappears when the user clicks a mouse button or moves the cursor off of the tool.