MSLLHOOKSTRUCT info  Overview  Group

[New for Windows NT 4.0 Service Pack 3.]

The MSLLHOOKSTRUCT structure contains information about a low-level keyboard input event.

typedef struct tagMSLLHOOKSTRUCT {

    DWORD pt;

    DWORD mouseData;

    DWORD flags;

    DWORD time;

    DWORD dwExtraInfo;

} MSLLHOOKSTRUCT, FAR *LPMSLLHOOKSTRUCT, *PMSLLHOOKSTRUCT;

 

Members

pt

Specifies a POINT structure that contains the x- and y-coordinates of the cursor, in screen coordinates.

mouseData

Used by the WM_MOUSEWHEEL message.

flags

Specifies the event-injected flag.

Value	Description
0	Specifies whether the event was injected. The value is 1 if the event was injected; otherwise, it is 0.
1-15	Reserved.

An application can use the following value to test the mouse flags:

Value	Purpose
LLMHF_INJECTED	Test the event-injected flag.

time

Specifies the time stamp for this message.

dwExtraInfo

Specifies extra information associated with the message.

See Also

LowLevelMouseProc, POINT, SetWindowsHookEx, WM_MOUSEWHEEL

Questions:

• venkatesan_h2000@yahoo.co.uk asks:

  my os is win2000 with service pack4 installed. when i declare
  MSLLHOOKSTRUCT the vc++ 6.0 compiler generates error as undefined identifier. i also included winuser.h and windows.h header file. Tell me a way to solve this.