The TVM_GETNEXTITEM message retrieves the tree-view item that bears the specified relationship to a specified item. You can send this message explicitly, by using the TreeView_GetNextItem macro, or by using one of the following related macros: TreeView_GetChild, TreeView_GetDropHilight, TreeView_GetFirstVisible, TreeView_GetNextSibling, TreeView_GetNextVisible, TreeView_GetParent, TreeView_GetPrevSibling, TreeView_GetPrevVisible, TreeView_GetRoot, or TreeView_GetSelection.
TVM_GETNEXTITEM wParam = (WPARAM) (UINT) flag; lParam = (LPARAM) (HTREEITEM) hitem;
Value |
Message |
TVGN_CARET |
Retrieves the currently selected item. You can use the TreeView_GetSelection macro to send this message. |
TVGN_CHILD |
Retrieves the first child item of the item specified by the hitem parameter. You can use the TreeView_GetChild macro to send this message. |
TVGN_DROPHILITE |
Retrieves the item that is the target of a drag-and-drop operation. You can use the TreeView_GetDropHilight macro to send this message. |
TVGN_FIRSTVISIBLE |
Retrieves the first visible item. You can use the TreeView_GetFirstVisible macro to send this message. |
TVGN_NEXT |
Retrieves the next sibling item. You can use the TreeView_GetNextSibling macro to send this message. |
TVGN_NEXTVISIBLE |
Retrieves the next visible item that follows the specified item. The specified item must be visible. Use the TVM_GETITEMRECT message to determine whether an item is visible. You can use the TreeView_GetNextVisible macro to send this message. |
TVGN_PARENT |
Retrieves the parent of the specified item. You can use the TreeView_GetParent macro to send this message. |
TVGN_PREVIOUS |
Retrieves the previous sibling item. You can use the TreeView_GetPrevSibling macro to send this message. |
TVGN_PREVIOUSVISIBLE |
Retrieves the first visible item that precedes the specified item. The specified item must be visible. Use the TVM_GETITEMRECT message to determine whether an item is visible. You can use the TreeView_GetPrevVisible macro to send this message. |
TVGN_ROOT |
Retrieves the topmost or very first item of the tree-view control. You can use the TreeView_GetRoot macro to send this message. |
Returns the handle to the item if successful or NULL otherwise.
TreeView_GetChild, TreeView_GetDropHilight, TreeView_GetFirstVisible, TreeView_GetNextSibling, TreeView_GetNextVisible, TreeView_GetParent, TreeView_GetPrevSibling, TreeView_GetPrevVisible, TreeView_GetRoot, TreeView_GetSelection, TVM_GETITEMRECT
file: /Techref/os/win/api/win32/mess/src/msg20_26.htm, 6KB, , updated: 2000/4/7 12:20, local time: 2024/8/25 09:44,
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