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;
Value |
Meaning |
The user has clicked the left mouse button within the control. | |
The user has double-clicked the left mouse button within the control. | |
The control has lost the input focus. | |
The control could not complete an operation because there was not enough memory available. | |
The user has clicked the right mouse button within the control. | |
The user has double-clicked the right mouse button within the control. | |
The control has the input focus, and the user has pressed the ENTER key. | |
The control has received the input focus. |
file: /Techref/os/win/api/win32/struc/src/str12_23.htm, 3KB, , updated: 2000/4/7 11:20, local time: 2025/2/17 13:15,
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