Tooltip

This section contains information about the programming elements used with tooltip controls.

Overviews

Topic	Contents
About Tooltip Controls	Tooltips appear automatically, or pop up, when the user pauses the mouse pointer over a tool or some other UI element.
Using Tooltip Controls	This section contains examples that demonstrate how to create different types of tooltips.

Messages

Topic	Contents
TTM_ACTIVATE	Activates or deactivates a tooltip control.
TTM_ADDTOOL	Registers a tool with a tooltip control.
TTM_ADJUSTRECT	Calculates a tooltip control's text display rectangle from its window rectangle, or the tooltip window rectangle needed to display a specified text display rectangle.
TTM_DELTOOL	Removes a tool from a tooltip control.
TTM_ENUMTOOLS	Retrieves the information that a tooltip control maintains about the current tool that is, the tool for which the tooltip is currently displaying text.
TTM_GETBUBBLESIZE	Returns the width and height of a tooltip control.
TTM_GETCURRENTTOOL	Retrieves the information for the current tool in a tooltip control.
TTM_GETDELAYTIME	Retrieves the initial, pop-up, and reshow durations currently set for a tooltip control.
TTM_GETMARGIN	Retrieves the top, left, bottom, and right margins set for a tooltip window. A margin is the distance, in pixels, between the tooltip window border and the text contained within the tooltip window.
TTM_GETMAXTIPWIDTH	Retrieves the maximum width for a tooltip window.
TTM_GETTEXT	Retrieves the information a tooltip control maintains about a tool.
TTM_GETTIPBKCOLOR	Retrieves the background color in a tooltip window.
TTM_GETTIPTEXTCOLOR	Retrieves the text color in a tooltip window.
TTM_GETTITLE	Retrieve information concerning the title of a tooltip control.
TTM_GETTOOLCOUNT	Retrieves a count of the tools maintained by a tooltip control.
TTM_GETTOOLINFO	Retrieves the information that a tooltip control maintains about a tool.
TTM_HITTEST	Tests a point to determine whether it is within the bounding rectangle of the specified tool and, if it is, retrieves information about the tool.
TTM_NEWTOOLRECT	Sets a new bounding rectangle for a tool.
TTM_POP	Removes a displayed tooltip window from view.
TTM_POPUP	Causes the tooltip to display at the coordinates of the last mouse message.
TTM_RELAYEVENT	Passes a mouse message to a tooltip control for processing.
TTM_SETDELAYTIME	Sets the initial, pop-up, and reshow durations for a tooltip control.
TTM_SETMARGIN	Sets the top, left, bottom, and right margins for a tooltip window. A margin is the distance, in pixels, between the tooltip window border and the text contained within the tooltip window.
TTM_SETMAXTIPWIDTH	Sets the maximum width for a tooltip window.
TTM_SETTIPBKCOLOR	Sets the background color in a tooltip window.
TTM_SETTIPTEXTCOLOR	Sets the text color in a tooltip window.
TTM_SETTITLE	Adds a standard icon and title string to a tooltip.
TTM_SETTOOLINFO	Sets the information that a tooltip control maintains for a tool.
TTM_SETWINDOWTHEME	Sets the visual style of a tooltip control.
TTM_TRACKACTIVATE	Activates or deactivates a tracking tooltip.
TTM_TRACKPOSITION	Sets the position of a tracking tooltip.
TTM_UPDATE	Forces the current tooltip to be redrawn.
TTM_UPDATETIPTEXT	Sets the tooltip text for a tool.
TTM_WINDOWFROMPOINT	Allows a subclass procedure to cause a tooltip to display text for a window other than the one beneath the mouse cursor.

Notifications

Topic	Contents
NM_CUSTOMDRAW (Tooltip)	Sent by a tooltip control to notify its parent windows about drawing operations. This notification code is sent in the form of a WM_NOTIFY message.
TTN_GETDISPINFO	Sent by a tooltip control to retrieve information needed to display a tooltip window. This notification code is sent in the form of a WM_NOTIFY message.
TTN_LINKCLICK	Sent when a text link inside a balloon tooltip is clicked.
TTN_NEEDTEXT	Sent by a tooltip control to retrieve information needed to display a tooltip window. This notification is identical to TTN_GETDISPINFO. This notification code is sent in the form of a WM_NOTIFY message.
TTN_POP	Notifies the owner window that a tooltip is about to be hidden. This notification code is sent in the form of a WM_NOTIFY message.
TTN_SHOW	Notifies the owner window that a tooltip control is about to be displayed. This notification code is sent in the form of a WM_NOTIFY message.

Structures

Topic	Contents
NMTTCUSTOMDRAW	Contains information specific to an NM_CUSTOMDRAW notification code sent by a tooltip control.
NMTTDISPINFO	Contains information used in handling the TTN_GETDISPINFO notification code. This structure supersedes the TOOLTIPTEXT structure.
TOOLINFO	The TOOLINFO structure contains information about a tool in a tooltip control.
TTGETTITLE	Provides information about the title of a tooltip control.
TTHITTESTINFO	Contains information that a tooltip control uses to determine whether a point is in the bounding rectangle of the specified tool. If the point is in the rectangle, the structure receives information about the tool.

Constants

Topic	Contents
Tooltip Styles	This section lists the control styles used with tooltip controls.