The HD_HITTESTINFO structure contains information about a hit test.
typedef struct _HD_HITTESTINFO {
POINT pt;
UINT flags;
int iItem;
} HD_HITTESTINFO;
Members
pt
Points to test, in client coordinates
flags
Variable that receives information about the results of a hit test. This member can be one or more of the following values:
| Value | Meaning |
| HHT_NOWHERE | The point is inside the bounding rectangle of the header control but is not over a header item. |
| HHT_ONDIVIDER | The point is on the divider between two header items. |
| HHT_ONDIVOPEN | The point is on the divider of an item that has a width of zero. Dragging the divider reveals the item instead of resizing the item to the left of the divider. |
| HHT_ONHEADER | The point is inside the bounding rectangle of the header control. |
| HHT_TOLEFT | The point is to the left of the bounding rectangle of the header control. |
| HHT_TORIGHT | The point is to the right of the bounding rectangle of the header control. |
Two of these values can be combined, such as when the position is above and to the left of the client area.
iItem
Receives the index of item at point, if any.
Remarks
This structure is used with the HDM_HITTEST message.
See Also