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LVHITTESTINFO structure (commctrl.h)

Contains information about a hit test. This structure has been extended to accommodate subitem hit-testing. It is used in association with the LVM_HITTEST and LVM_SUBITEMHITTEST messages and their related macros. This structure supersedes the LVHITTESTINFO structure.

Syntax

typedef struct tagLVHITTESTINFO {
 POINT pt;
 UINT flags;
 int iItem;
 int iSubItem;
 int iGroup;
} LVHITTESTINFO, *LPLVHITTESTINFO;

Members

pt

Type: POINT

The position to hit test, in client coordinates.

flags

Type: UINT

The variable that receives information about the results of a hit test. This member can be one or more of the following values:

You can use LVHT_ABOVE, LVHT_BELOW, LVHT_TOLEFT, and LVHT_TORIGHT to determine whether to scroll the contents of a list-view control. Two of these values may be combined. For example, if the position is above and to the left of the client area, you could use both LVHT_ABOVE and LVHT_TOLEFT. 

You can test for LVHT_ONITEM to determine whether a specified position is over a list-view item. This value is a bitwise-OR operation on LVHT_ONITEMICON, LVHT_ONITEMLABEL, and LVHT_ONITEMSTATEICON.

Value Meaning
LVHT_ABOVE
 The position is above the control's client area.
LVHT_BELOW
 The position is below the control's client area.
LVHT_NOWHERE
 The position is inside the list-view control's client window, but it is not over a list item.
LVHT_ONITEMICON
 The position is over a list-view item's icon.
LVHT_ONITEMLABEL
 The position is over a list-view item's text.
LVHT_ONITEMSTATEICON
 The position is over the state image of a list-view item.
LVHT_TOLEFT
 The position is to the left of the list-view control's client area.
LVHT_TORIGHT
 The position is to the right of the list-view control's client area.
LVHT_EX_GROUP_HEADER
 Windows Vista. The point is within the group header.
LVHT_EX_GROUP_FOOTER
 Windows Vista. The point is within the group footer.
LVHT_EX_GROUP_COLLAPSE
 Windows Vista. The point is within the collapse/expand button of the group.
LVHT_EX_GROUP_BACKGROUND
 Windows Vista. The point is within the area of the group where items are displayed.
LVHT_EX_GROUP_STATEICON
 Windows Vista. The point is within the state icon of the group.
LVHT_EX_GROUP_SUBSETLINK
 Windows Vista. The point is within the subset link of the group.
LVHT_EX_GROUP
 Windows Vista. LVHT_EX_GROUP_BACKGROUND | LVHT_EX_GROUP_COLLAPSE | LVHT_EX_GROUP_FOOTER | LVHT_EX_GROUP_HEADER | LVHT_EX_GROUP_STATEICON | LVHT_EX_GROUP_SUBSETLINK.
LVHT_EX_ONCONTENTS
 Windows Vista. The point is within the icon or text content of the item and not on the background.
LVHT_EX_FOOTER
 Windows Vista. The point is within the footer of the list-view control.

iItem

Type: int

Receives the index of the matching item. Or if hit-testing a subitem, this value represents the subitem's parent item.

iSubItem

Type: int

Version 4.70. Receives the index of the matching subitem. When hit-testing an item, this member will be zero.

iGroup

Type: int

Windows Vista. Group index of the item hit (read only). Valid only for owner data. If the point is within an item that is displayed in multiple groups then iGroup will specify the group index of the item.

Requirements

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

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