RID_DEVICE_INFO_MOUSE structure (winuser.h)

Defines the raw input data coming from the specified mouse.

Syntax

typedef struct tagRID_DEVICE_INFO_MOUSE {
  DWORD dwId;
  DWORD dwNumberOfButtons;
  DWORD dwSampleRate;
  BOOL  fHasHorizontalWheel;
} RID_DEVICE_INFO_MOUSE, *PRID_DEVICE_INFO_MOUSE;

Members

dwId

Type: DWORD

The bitfield of the mouse device identification properties:

Value	ntddmou.h constant	Description
0x0080	MOUSE_HID_HARDWARE	HID mouse
0x0100	WHEELMOUSE_HID_HARDWARE	HID wheel mouse
0x8000	HORIZONTAL_WHEEL_PRESENT	Mouse with horizontal wheel

dwNumberOfButtons

Type: DWORD

The number of buttons for the mouse.

dwSampleRate

Type: DWORD

The number of data points per second. This information may not be applicable for every mouse device.

fHasHorizontalWheel

Type: BOOL

TRUE if the mouse has a wheel for horizontal scrolling; otherwise, FALSE.

Windows XP: This member is only supported starting with Windows Vista.

Remarks

For the mouse, the Usage Page is 1 and the Usage is 2.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Header	winuser.h (include Windows.h)

See also

Conceptual

RID_DEVICE_INFO

Raw Input

Reference