NMHDR AZU8Y9

The NMHDR structure contains information about a notification message. The pointer to this structure is specified as the lParam member of the WM_NOTIFY1MZT7BR message.

typedef struct tagNMHDR {

HWND hwndFrom;

UINT idFrom;

UINT code;

} NMHDR;

Members

hwndFrom

Window handle of control sending message

idFrom

Identifier of control sending message

code

Specifies the notification code. This member can be a control-specific notification code, or it can be one of the following common notification values:

Value	Meaning
NM_CLICK4J1VZH	The user has clicked the left mouse button within the control.
NM_DBLCLK19OI1UQ	The user has double-clicked the left mouse button within the control.
NM_KILLFOCUSM47R0W	The control has lost the input focus.
NM_OUTOFMEMORYQGL05X	The control could not complete an operation because there was not enough memory available.
NM_RCLICKUG_85A	The user has clicked the right mouse button within the control.
NM_RDBLCLK88WNG7	The user has double-clicked the right mouse button within the control.
NM_RETURNUIEDDD	The control has the input focus, and the user has pressed the ENTER key.
NM_SETFOCUS_7F6H7	The control has received the input focus.