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* This attribute provides the Y coordinate of the position of a gesture, in
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* device coordinates. It's the same as the centroid of a gesture. See
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* GEIS_GESTURE_ATTRIBUTE_CENTROID_Y.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_0_ID
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* This attribute provides the ID of the touch at index0.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_0_X
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* This attribute provides the X coordinate of the touch at index0.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_0_Y
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* This attribute provides the Y coordinate of the touch at index0.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_1_ID
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* This attribute provides the ID of the touch at index1.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_1_X
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* This attribute provides the X coordinate of the touch at index1.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_1_Y
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* This attribute provides the Y coordinate of the touch at index1.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_2_ID
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* This attribute provides the ID of the touch at index2.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_2_X
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* This attribute provides the X coordinate of the touch at index2.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_2_Y
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* This attribute provides the Y coordinate of the touch at index2.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_3_ID
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* This attribute provides the ID of the touch at index3.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_3_X
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* This attribute provides the X coordinate of the touch at index3.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_3_Y
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* This attribute provides the Y coordinate of the touch at index3.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_4_ID
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* This attribute provides the ID of the touch at index4.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_4_X
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* This attribute provides the X coordinate of the touch at index4.
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* Only used by GEIS v1 API.
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* @def GEIS_GESTURE_ATTRIBUTE_TOUCH_4_Y
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* This attribute provides the Y coordinate of the touch at index4.
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* Only used by GEIS v1 API.
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#define GEIS_GESTURE_ATTRIBUTE_ANGLE "angle"
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#define GEIS_GESTURE_ATTRIBUTE_ANGLE_DELTA "angle delta"