Class Display

Definition

Namespace:
Tizen.System
Assembly:
Tizen.System.dll

The Display class provides the properties and events to control the display status and brightness.

public class Display
Inheritance
object
Display
Remarks

The Display API provides the way to get the current display brightness value, the display state, and the total number of available displays. It also provides the events for an application to receive the display state change events from the device. To receive the display event, the application should register with an associated EventHandler.

Examples
    Console.WriteLine("Display current state is: {0}", Tizen.System.Display.State);
    Console.WriteLine("Total number of Displays are: {0}", Tizen.System.Display.NumberOfDisplays);

Properties

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Brightness

The brightness value of the display.

Declaration
public int Brightness { get; set; }
Property Value
Type Description
int
Remarks

The brightness value should be less than or equal to the MaxBrightness value.

Examples
    Display display = Display.Displays[0];
    Console.WriteLine("Display current Brightness is: {0}", display.Brightness);
Exceptions
Type Condition
System.ArgumentException

When an invalid parameter value is set.
System.UnauthorizedAccessException

If the privilege is not set.
View Source

Displays

Gets all the available displays. The display at the index zero is always assigned to the main display.

Declaration
public static IReadOnlyList<Display> Displays { get; }
Property Value
Type Description
System.Collections.Generic.IReadOnlyList<T><Display>
Remarks

The Display API provides the way to get the current display brightness value, the display state, and the total number of available displays. It also provides the events for an application to receive the display state change events from the device. To receive the display event, the application should register with an associated EventHandler.

View Source

MaxBrightness

The maximum brightness value that can be set for the specific display.

Declaration
public int MaxBrightness { get; }
Property Value
Type Description
int
Remarks

The Display API provides the way to get the current display brightness value, the display state, and the total number of available displays. It also provides the events for an application to receive the display state change events from the device. To receive the display event, the application should register with an associated EventHandler.

Examples
    Display display = Display.Displays[0];
    Console.WriteLine("Display MaxBrightness is: {0}", display.MaxBrightness);
View Source

NumberOfDisplays

The number of available display devices.

Declaration
public static int NumberOfDisplays { get; }
Property Value
Type Description
int
Remarks

The Display API provides the way to get the current display brightness value, the display state, and the total number of available displays. It also provides the events for an application to receive the display state change events from the device. To receive the display event, the application should register with an associated EventHandler.

View Source

State

The current device display state.

Declaration
public static DisplayState State { get; }
Property Value
Type Description
DisplayState
Remarks

The Display API provides the way to get the current display brightness value, the display state, and the total number of available displays. It also provides the events for an application to receive the display state change events from the device. To receive the display event, the application should register with an associated EventHandler.

Events

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StateChanged

StateChanged is raised when the state of the display is changed.

Declaration
public static event EventHandler<DisplayStateChangedEventArgs> StateChanged
Event Type
Type Description
System.EventHandler<TEventArgs><DisplayStateChangedEventArgs>
Remarks

The Display API provides the way to get the current display brightness value, the display state, and the total number of available displays. It also provides the events for an application to receive the display state change events from the device. To receive the display event, the application should register with an associated EventHandler.

Examples
public static async Task DisplayEventHandler()
{
    EventHandler<DisplayStateChangedEventArgs> handler = null;
    handler = (object sender, DisplayStateChangedEventArgs args) =>
    {
         Console.WriteLine("Display State is: {0}", args.State);
    }
    Battery.StateChanged += handler;
    await Task.Delay(20000);
}