Class Display

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Definition

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

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


                
C#

                

                    
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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

                

                

                    
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    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

                
C#

                

                    
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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

                

                

                    
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    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.
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Displays

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

Declaration

                
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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.

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MaxBrightness

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

Declaration

                
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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

                

                

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

The number of available display devices.

Declaration

                
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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.

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State

The current device display state.

Declaration

                
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public static DisplayState State { get; set; }
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

                
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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

                

                

                    
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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);
}