int HitTest( LPPOINT ppt ) const;
Return Value
An integer value indicating the location of a point on a toolbar. If the value is zero or a positive value, this return value is the zero-based index of the nonseparator item in which the point lies.
If the return value is negative, the point does not lie within a button. The absolute value of the return value is the index of a separator item or the nearest nonseparator item.
Parameters
ppt
A pointer to a POINT structure that contains the x-coordinate of the hit test in the x member and the y-coordinate of the hit test in the y member. The coordinates are relative to the toolbar's client area.
Remarks
This member function implements the behavior of the Win32 message TB_HITTEST, as described in the Platform SDK.