Edit

Share via

TVINSERTSTRUCTW structure (commctrl.h)

  • Article

Contains information used to add a new item to a tree-view control. This structure is used with the TVM_INSERTITEM message. The structure is identical to the TV_INSERTSTRUCT structure, but it has been renamed to follow current naming conventions.

Syntax

typedef struct tagTVINSERTSTRUCTW {
  HTREEITEM hParent;
  HTREEITEM hInsertAfter;
  union {
    TVITEMEXW itemex;
    TV_ITEMW  item;
  } DUMMYUNIONNAME;
} TVINSERTSTRUCTW, *LPTVINSERTSTRUCTW;

Members

hParent

Type: HTREEITEM

Handle to the parent item. If this member is the TVI_ROOT value or NULL, the item is inserted at the root of the tree-view control.

hInsertAfter

Type: HTREEITEM

Handle to the item after which the new item is to be inserted, or one of the following values:

Value Meaning
TVI_FIRST
 Inserts the item at the beginning of the list.
TVI_LAST
 Inserts the item at the end of the list.
TVI_ROOT
 Add the item as a root item.
TVI_SORT
 Inserts the item into the list in alphabetical order.

DUMMYUNIONNAME

DUMMYUNIONNAME.itemex

Type: TVITEMEX

Version 4.71. TVITEMEX structure that contains information about the item to add.

DUMMYUNIONNAME.item

Type: TVITEM

TVITEM structure that contains information about the item to add.

Remarks

The unions in this structure have been updated to work with compilers that do not support nameless unions. If your compiler does not support nameless unions, define the NONAMELESSUNION token before including the commctrl.h header file.

Important  Using TVI_LAST to insert an item into a tree-view node that already contains a large number of items can take a long time, causing the application to stop responding until the insert operation completes.
 

Note

The commctrl.h header defines TVINSERTSTRUCT as an alias that automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that is not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Header commctrl.h