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Overview |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| -
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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NMHDR
The NMHDR structure contains information about a notification message. The pointer to
this structure is specified as the lParam member of the WM_NOTIFY 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_CLICK
| The user has clicked the left mouse button within the control.
| NM_DBLCLK
| The user has double-clicked the left mouse button within the control.
| NM_KILLFOCUS
| The control has lost the input focus.
| NM_OUTOFMEMORY
| The control could not complete an operation because there was not enough
memory available.
| NM_RCLICK
| The user has clicked the right mouse button within the control.
| NM_RDBLCLK
| The user has double-clicked the right mouse button within the control.
| NM_RETURN
| The control has the input focus, and the user has pressed the ENTER key.
| NM_SETFOCUS
| The control has received the input focus.
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