OH_ArkUI_PointerEvent_GetHistoryPressure

arkui_sys::ui_input_event

Function OH_ArkUI_PointerEvent_GetHistoryPressure 

Source 
pub unsafe extern "C" fn OH_ArkUI_PointerEvent_GetHistoryPressure(
    event: *const ArkUI_UIInputEvent,
    pointerIndex: u32,
    historyIndex: u32,
) -> f32
Available on crate feature api-12 only.
Expand description

Obtains the pressure applied to the touchscreen in a specific historical event from a directional input event (for example, a touch event)..

§Arguments

  • event - Indicates the pointer to the current UI input event.

  • pointerIndex - Indicates the index of the target touch point in the multi-touch data list.

  • historyIndex - Indicates the index of the target historical event.

§Returns

  • Returns the pressure applied to the touchscreen; returns 0.0f if any parameter error occurs.

Available since API-level: 12