The TV_DISPINFO structure retrieves and sets information about a tree-view item.
typedef struct _TV_DISPINFO { tvdi NMHDR hdr; TV_ITEM item; } TV_DISPINFO;
Value |
Meaning |
TVIF_CHILDREN |
The cChildren member specifies, or is to receive, a value that indicates whether the item has child items. |
TVIF_IMAGE |
The iImage member specifies, or is to receive, the index of the item’s non-selected icon in the image list. |
TVIF_SELECTEDIMAGE |
The iSelectedImage member specifies, or is to receive, the index of the item’s selected icon in the image list. |
TVIF_TEXT |
The pszText member specifies the new item text or the pointer to a buffer that is to receive the item text. |
If the structure is receiving item text, you typically copy the text to the buffer pointed to by the pszText member of the TV_ITEM structure. However, you can return a string in the pszText member instead. If you do so, you cannot change or delete the string until the corresponding item text is deleted or until two additional TVN_GETDISPINFO notification messages have been sent.
A pointer to a TV_DISPINFO structure is passed as the lParam parameter when a tree-view control sends a WM_NOTIFY message with the TVN_GETDISPINFO and TVN_SETDISPINFO notification codes. A tree-view control sends these notifications in the following situations in which the parent window of the control stores information about a tree-view item:
NMHDR, TV_ITEM, TVN_GETDISPINFO, TVN_SETDISPINFO, WM_NOTIFY
file: /Techref/os/win/api/win32/struc/src/str22_7.htm, 4KB, , updated: 2000/4/7 12:20, local time: 2024/9/1 14:40,
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