Edit

Share via

TTHITTESTINFOA structure (commctrl.h)

  • Article

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.

Syntax

typedef struct _TT_HITTESTINFOA {
  HWND        hwnd;
  POINT       pt;
  TTTOOLINFOA ti;
} TTHITTESTINFOA, *LPTTHITTESTINFOA;

Members

hwnd

Type: HWND

Handle to the tool or window with the specified tool.

pt

Type: POINT

Client coordinates of the point to test.

ti

Type: TOOLINFO

TOOLINFO structure. If the point specified by pt is in the tool specified by hwnd, this structure receives information about the tool. The cbSize member of this structure must be filled in before sending this message.

Remarks

This structure is used with the TTM_HITTEST message.

Note

The commctrl.h header defines TTHITTESTINFO as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Header commctrl.h