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NM_DBLCLK (tree view) notification code (Commctrl.h)
Notifies the parent window of a tree-view control that the user has double-clicked the left mouse button within the control. This notification code is sent in the form of a WM\_NOTIFY message.
2ed3b3ad-a252-496a-bfcf-0cec5678f192
NM_DBLCLK (tree view) notification code Windows Controls
apiref
NM_DBLCLK
Commctrl.h
HeaderDef
reference
05/31/2018

NM_DBLCLK (tree view) notification code

Notifies the parent window of a tree-view control that the user has double-clicked the left mouse button within the control. This notification code is sent in the form of a WM_NOTIFY message.

NM_DBLCLK
        
    lpnmh = (LPNMHDR) lParam;

Parameters

lParam

Pointer to an NMHDR structure that contains additional information about this notification.

Return value

Return nonzero to prevent the default processing, or zero to allow the default processing.

Requirements

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