This message is sent by an application to retrieve the zero-based index of the item nearest the specified point in a list box.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 1.0 and later |
Syntax
LB_ITEMFROMPOINT wParam = 0;
lParam = (LPARAM)MAKELPARAM(xPos, yPos);
Parameters
xPos
Value of the low-order word of lParam. Specifies the x-coordinate of a point, relative to the upper-left corner of the client area of the list box.
yPos
Value of the high-order word of lParam. Specifies the y-coordinate of a point, relative to the upper-left corner of the client area of the list box.
Return Values
The return value contains the index of the nearest item in the low-order word. The high-order word is zero if the specified point is in the client area of the list box, or one if it is outside the client area.