LB_ITEMFROMPOINT

  • 项目

This message is sent by an application to retrieve the zero-based index of the item nearest the specified point in a list box.

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.

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Winuser.h.

See Also

List Box Messages

Last updated on Wednesday, April 13, 2005

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