Packet Property GUIDs
Packet Property GUIDs |
Packet Property GUIDs
The following table lists packet property GUIDs used by the PACKET_PROPERTY structure.
| GUID | Description |
| GUID_X | The x-coordinate in the tablet coordinate space. Each packet contains this property by default. The origin (0,0) of the tablet is the upper-left corner. |
| GUID_Y | The y-coordinate in the tablet coordinate space. Each packet contains this property by default. The origin (0,0) of the tablet is the upper-left corner. |
| GUID_Z | The z-coordinate or distance of the pen tip from the tablet surface. The PROPERTY_UNITS enumeration type determines the unit of measurement for this property. |
| GUID_PACKET_STATUS | Contains one or more of the following flag values:
IP_CURSOR_DOWN The cursor is touching the drawing surface. IP_INVERTED The cursor is inverted. For example, the eraser end of the pen is pointing toward the surface. IP_MARGIN The cursor is in the margin of the tablet context. IP_BARREL_DOWN The button on the barrel of the pen is down. |
| GUID_TIMER_TICK | Time the packet was generated. |
| GUID_SERIAL_NUMBER | Identifies the packet. This is the same value you use to retrieve the packet from the packet queue. |
| GUID_NORMAL_PRESSURE | Downward pressure of the pen tip on the tablet surface. The greater the pressure put on the pen tip, the more ink that is drawn. |
| GUID_TANGENT_PRESSURE | Pressure of the pen tip perpendicular to the tablet surface. |
| GUID_BUTTON_PRESSURE | Pressure on a pressure sensitive button. |
| GUID_X_TILT_ORIENTATION | For a pen cursor, the x-tilt orientation is the angle between the y,z-plane and the pen and y-axis plane. The value is 0 when the pen is perpendicular to the drawing surface and is positive when the pen is to the right of perpendicular. |
| GUID_Y_TILT_ORIENTATION | For a pen cursor, the y-tilt orientation is the angle between the x,z-plane and the pen and x-axis plane. The value is 0 when the pen is perpendicular to the drawing surface and is positive when the pen is upward, or away from the user. |
| GUID_AZIMUTH_ORIENTATION | Clockwise rotation of the cursor about the z-axis through a full circular range. |
| GUID_ALTITUDE_ORIENTATION | Angle between the axis of the pen and the surface of the tablet. The value is 0 when the pen is parallel to the surface and 90 when the pen is perpendicular to the surface. The values are negative when the pen is inverted. |
| GUID_TWIST_ORIENTATION | Clockwise rotation of the cursor about its own axis. |