TreeView_Expand - Win32 Programmer's Reference

Win32 Programmer's Reference

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Overview

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Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library

Header File
commctrl.h
Unicode
No
Platform Notes
None

TreeView_Expand

The TreeView_Expand macro expands or collapses the list of child items, if any, associated with the specified parent item. You can use this macro or explicitly send the TVM_EXPAND message.

BOOL TreeView_Expand(

hwnd,
hitem,
flag
);

Parameters
hwnd

Handle to the tree-view control.

hitem
Handle to the parent item to expand or collapse.

flag
Action flag. This parameter can be one of the following values:

Value	Meaning
TVE_COLLAPSE	Collapses the list.
TVE_COLLAPSERESET	Collapses the list and removes the child items. Note that TVE_COLLAPSE must also be specified.
TVE_EXPAND	Expands the list.
TVE_TOGGLE	Collapses the list if it is currently expanded or expands it if it is currently collapsed.

Return Values
Returns TRUE if any change took place or FALSE otherwise.

Remarks
This macro does not send the TVN_ITEMEXPANDING and TVN_ITEMEXPANDED notification messages to the parent window.

See Also
TVM_EXPAND, TVN_ITEMEXPANDED, TVN_ITEMEXPANDING

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