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Console.xml
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<Type Name="Console" FullName="System.Console">
<TypeSignature Language="C#" Value="public static class Console" FrameworkAlternate="net-5.0;net-6.0;net-7.0;net-8.0;net-9.0;netcore-1.0;netcore-1.1;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;netstandard-1.3;netstandard-1.4;netstandard-1.6;netstandard-2.0;netstandard-2.1" />
<TypeSignature Language="ILAsm" Value=".class public auto ansi abstract sealed beforefieldinit Console extends System.Object" FrameworkAlternate="net-5.0;net-6.0;net-7.0;net-8.0;net-9.0;netcore-1.0;netcore-1.1;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;netstandard-1.3;netstandard-1.4;netstandard-1.6;netstandard-2.0;netstandard-2.1" />
<TypeSignature Language="DocId" Value="T:System.Console" />
<TypeSignature Language="VB.NET" Value="Public Class Console" FrameworkAlternate="net-5.0;net-6.0;net-7.0;net-8.0;net-9.0;netcore-1.0;netcore-1.1;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;netstandard-1.3;netstandard-1.4;netstandard-1.6;netstandard-2.0;netstandard-2.1" />
<TypeSignature Language="F#" Value="type Console = class" />
<TypeSignature Language="C++ CLI" Value="public ref class Console abstract sealed" FrameworkAlternate="net-5.0;net-6.0;net-7.0;net-8.0;net-9.0;netcore-1.0;netcore-1.1;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;netstandard-1.3;netstandard-1.4;netstandard-1.6;netstandard-2.0;netstandard-2.1" />
<TypeSignature Language="C#" Value="public sealed class Console" FrameworkAlternate="netframework-1.1" />
<TypeSignature Language="ILAsm" Value=".class public auto ansi sealed Console extends System.Object" FrameworkAlternate="netframework-1.1" />
<TypeSignature Language="VB.NET" Value="Public NotInheritable Class Console" FrameworkAlternate="netframework-1.1" />
<TypeSignature Language="C++ CLI" Value="public ref class Console sealed" FrameworkAlternate="netframework-1.1" />
<AssemblyInfo>
<AssemblyName>System.Console</AssemblyName>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>4.1.0.0</AssemblyVersion>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
<AssemblyVersion>4.1.2.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
</AssemblyInfo>
<AssemblyInfo>
<AssemblyName>mscorlib</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>2.0.5.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<AssemblyInfo>
<AssemblyName>netstandard</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>2.1.0.0</AssemblyVersion>
</AssemblyInfo>
<TypeForwardingChain>
<TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Console" ToVersion="5.0.0.0" FrameworkAlternate="net-5.0" />
<TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Console" ToVersion="6.0.0.0" FrameworkAlternate="net-6.0" />
<TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Console" ToVersion="7.0.0.0" FrameworkAlternate="net-7.0" />
<TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Console" ToVersion="8.0.0.0" FrameworkAlternate="net-8.0" />
<TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Console" ToVersion="9.0.0.0" FrameworkAlternate="net-9.0" />
</TypeForwardingChain>
<Base>
<BaseTypeName>System.Object</BaseTypeName>
</Base>
<Interfaces />
<Attributes>
<Attribute FrameworkAlternate="net-8.0;net-9.0">
<AttributeName Language="C#">[System.Runtime.CompilerServices.Nullable(0)]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.CompilerServices.Nullable(0)>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="net-8.0;net-9.0">
<AttributeName Language="C#">[System.Runtime.CompilerServices.NullableContext(1)]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.CompilerServices.NullableContext(1)>]</AttributeName>
</Attribute>
</Attributes>
<Docs>
<summary>Represents the standard input, output, and error streams for console applications. This class cannot be inherited.</summary>
<remarks>For more information about this API, see <see href="/dotnet/fundamentals/runtime-libraries/system-console">Supplemental API remarks for Console</see>.</remarks>
<threadsafe>This type is thread safe.</threadsafe>
</Docs>
<Members>
<Member MemberName="BackgroundColor">
<MemberSignature Language="C#" Value="public static ConsoleColor BackgroundColor { get; set; }" />
<MemberSignature Language="ILAsm" Value=".property valuetype System.ConsoleColor BackgroundColor" />
<MemberSignature Language="DocId" Value="P:System.Console.BackgroundColor" />
<MemberSignature Language="VB.NET" Value="Public Shared Property BackgroundColor As ConsoleColor" />
<MemberSignature Language="F#" Value="static member BackgroundColor : ConsoleColor with get, set" Usage="System.Console.BackgroundColor" />
<MemberSignature Language="C++ CLI" Value="public:
 static property ConsoleColor BackgroundColor { ConsoleColor get(); void set(ConsoleColor value); };" />
<MemberType>Property</MemberType>
<AssemblyInfo>
<AssemblyName>System.Console</AssemblyName>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>4.1.0.0</AssemblyVersion>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
<AssemblyVersion>4.1.2.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
</AssemblyInfo>
<AssemblyInfo>
<AssemblyName>mscorlib</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>2.0.5.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<AssemblyInfo>
<AssemblyName>netstandard</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>2.1.0.0</AssemblyVersion>
</AssemblyInfo>
<Attributes>
<Attribute FrameworkAlternate="net-5.0;net-6.0;net-7.0;net-8.0;net-9.0">
<AttributeName Language="C#">[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="net-6.0;net-7.0;net-8.0;net-9.0">
<AttributeName Language="C#">[System.Runtime.Versioning.UnsupportedOSPlatform("android")]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.Versioning.UnsupportedOSPlatform("android")>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="net-6.0;net-7.0;net-8.0;net-9.0">
<AttributeName Language="C#">[System.Runtime.Versioning.UnsupportedOSPlatform("ios")]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.Versioning.UnsupportedOSPlatform("ios")>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="net-6.0;net-7.0;net-8.0;net-9.0">
<AttributeName Language="C#">[System.Runtime.Versioning.UnsupportedOSPlatform("tvos")]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.Versioning.UnsupportedOSPlatform("tvos")>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1">
<AttributeName Language="C#">[get: System.Security.SecuritySafeCritical]</AttributeName>
<AttributeName Language="F#">[<get: System.Security.SecuritySafeCritical>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1">
<AttributeName Language="C#">[set: System.Security.SecuritySafeCritical]</AttributeName>
<AttributeName Language="F#">[<set: System.Security.SecuritySafeCritical>]</AttributeName>
</Attribute>
</Attributes>
<ReturnValue>
<ReturnType>System.ConsoleColor</ReturnType>
</ReturnValue>
<Docs>
<summary>Gets or sets the background color of the console.</summary>
<value>A value that specifies the background color of the console; that is, the color that appears behind each character. The default is black.</value>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
A change to the <xref:System.Console.BackgroundColor%2A> property affects only output that is written to individual character cells after the background color is changed. To change the background color of the console window as a whole, set the <xref:System.Console.BackgroundColor%2A> property and call the <xref:System.Console.Clear%2A> method. The following example provides an illustration.
:::code language="csharp" source="~/snippets/csharp/System/Console/BackgroundColor/backgroundcolor1.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR_System/system.console.backgroundcolor/fs/backgroundcolor1.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR_System/system.console.backgroundcolor/vb/backgroundcolor1.vb" id="Snippet1":::
A get operation for a Windows-based application, in which a console does not exist, returns <xref:System.ConsoleColor.Black?displayProperty=nameWithType>.
Unix systems don't provide any general mechanism to fetch the current console colors. Because of that, <xref:System.Console.BackgroundColor%2A> returns `(ConsoleColor)-1` until it is set in explicit way (using the setter).
## Examples
The following example saves the values of the <xref:System.ConsoleColor> enumeration to an array and stores the current values of the <xref:System.Console.BackgroundColor%2A> and <xref:System.Console.ForegroundColor%2A> properties to variables. It then changes the foreground color to each color in the <xref:System.ConsoleColor> enumeration except to the color that matches the current background, and it changes the background color to each color in the <xref:System.ConsoleColor> enumeration except to the color that matches the current foreground. (If the foreground color is the same as the background color, the text isn't visible.) Finally, it calls the <xref:System.Console.ResetColor%2A> method to restore the original console colors.
:::code language="csharp" source="~/snippets/csharp/System/Console/BackgroundColor/foregroundcolor3.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR_System/system.consolecolor/fs/foregroundcolor3.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR_System/system.consolecolor/vb/foregroundcolor3.vb" id="Snippet1":::
]]></format>
</remarks>
<exception cref="T:System.ArgumentException">The color specified in a set operation is not a valid member of <see cref="T:System.ConsoleColor" />.</exception>
<exception cref="T:System.Security.SecurityException">The user does not have permission to perform this action.</exception>
<exception cref="T:System.IO.IOException">An I/O error occurred.</exception>
</Docs>
</Member>
<MemberGroup MemberName="Beep">
<AssemblyInfo>
<AssemblyName>System.Console</AssemblyName>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>4.1.0.0</AssemblyVersion>
</AssemblyInfo>
<Docs>
<summary>Plays the sound of a beep through the console speaker.</summary>
</Docs>
</MemberGroup>
<Member MemberName="Beep">
<MemberSignature Language="C#" Value="public static void Beep ();" />
<MemberSignature Language="ILAsm" Value=".method public static hidebysig void Beep() cil managed" />
<MemberSignature Language="DocId" Value="M:System.Console.Beep" />
<MemberSignature Language="VB.NET" Value="Public Shared Sub Beep ()" />
<MemberSignature Language="F#" Value="static member Beep : unit -> unit" Usage="System.Console.Beep " />
<MemberSignature Language="C++ CLI" Value="public:
 static void Beep();" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Console</AssemblyName>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>4.1.0.0</AssemblyVersion>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
<AssemblyVersion>4.1.2.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
</AssemblyInfo>
<AssemblyInfo>
<AssemblyName>mscorlib</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>2.0.5.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<AssemblyInfo>
<AssemblyName>netstandard</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>2.1.0.0</AssemblyVersion>
</AssemblyInfo>
<Attributes>
<Attribute FrameworkAlternate="net-5.0;net-6.0;net-7.0;net-8.0;net-9.0">
<AttributeName Language="C#">[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="net-6.0;net-7.0;net-8.0;net-9.0">
<AttributeName Language="C#">[System.Runtime.Versioning.UnsupportedOSPlatform("android")]</AttributeName>
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<Docs>
<summary>Plays the sound of a beep through the console speaker.</summary>
<remarks>
<format type="text/markdown"><. Whether <xref:System.Console.Beep%2A> produces a sound on versions of Windows before Windows 7 depends on the presence of a 8254 programmable interval timer chip. Starting with Windows 7, it depends on the default sound device.
## Examples
The following example demonstrates the <xref:System.Console.Beep%2A> method. The example accepts a number from 1 through 9 as a command line argument, and plays the beep that number of times.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/console.beep/CPP/beep.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/Console/Beep/beep.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR/console.beep/FS/beep.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/console.beep/VB/beep.vb" id="Snippet1":::
]]></format>
</remarks>
<exception cref="T:System.Security.HostProtectionException">This method was executed on a server, such as SQL Server, that does not permit access to a user interface.</exception>
</Docs>
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<param name="frequency">The frequency of the beep, ranging from 37 to 32767 hertz.</param>
<param name="duration">The duration of the beep measured in milliseconds.</param>
<summary>Plays the sound of a beep of a specified frequency and duration through the console speaker.</summary>
<remarks>
<format type="text/markdown"><. Whether <xref:System.Console.Beep%2A> produces a sound on versions of Windows before Windows 7 depends on the presence of a 8254 programmable interval timer chip. Starting with Windows 7, it depends on the default sound device.
## Examples
This example demonstrates the <xref:System.Console.Beep%2A> method by playing the first few notes of a song through the console speaker.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/console.beep2/CPP/b2.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/Console/Beep/b2.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR/console.beep2/FS/b2.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/console.beep2/VB/b2.vb" id="Snippet1":::
]]></format>
</remarks>
<exception cref="T:System.ArgumentOutOfRangeException">
<paramref name="frequency" /> is less than 37 or more than 32767 hertz.
-or-
<paramref name="duration" /> is less than or equal to zero.</exception>
<exception cref="T:System.Security.HostProtectionException">This method was executed on a server, such as SQL Server, that does not permit access to the console.</exception>
<exception cref="T:System.PlatformNotSupportedException">The current operating system is not Windows.</exception>
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<summary>Gets or sets the height of the buffer area.</summary>
<value>The current height, in rows, of the buffer area.</value>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
This property defines the number of rows (or lines) stored in the buffer that is accessed by a console mode window. In contrast, the <xref:System.Console.WindowHeight%2A> property defines the number of rows that are actually displayed in the console window at any particular time. If the number of rows actually written to the buffer exceeds the number of rows defined by the <xref:System.Console.WindowHeight%2A> property, the window can be scrolled vertically so that it displays a contiguous number of rows that are equal to the <xref:System.Console.WindowHeight%2A> property and are located anywhere in the buffer.
If a set operation decreases the value of the <xref:System.Console.BufferHeight%2A> property, the uppermost lines are removed. For example, if the number of lines is reduced from 300 to 250, lines 0 through 49 are removed, and the existing lines 50 through 299 become lines 0 through 249.
## Examples
This example demonstrates the <xref:System.Console.BufferHeight%2A> and <xref:System.Console.BufferWidth%2A> properties. The example reports the dimensions of an operating system window set to a buffer size of 300 rows and 85 columns.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/console.bufferHW/CPP/hw.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/Console/BufferHeight/hw.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR/console.bufferHW/FS/hw.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/console.bufferHW/VB/hw.vb" id="Snippet1":::
]]></format>
</remarks>
<exception cref="T:System.ArgumentOutOfRangeException">The value in a set operation is less than or equal to zero.
-or-
The value in a set operation is greater than or equal to <see cref="F:System.Int16.MaxValue">Int16.MaxValue</see>.
-or-
The value in a set operation is less than <see cref="P:System.Console.WindowTop" /> + <see cref="P:System.Console.WindowHeight" />.</exception>
<exception cref="T:System.Security.SecurityException">The user does not have permission to perform this action.</exception>
<exception cref="T:System.IO.IOException">An I/O error occurred.</exception>
<exception cref="T:System.PlatformNotSupportedException">The set operation is invoked on an operating system other than Windows.</exception>
</Docs>
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<MemberSignature Language="C#" Value="public static int BufferWidth { get; set; }" />
<MemberSignature Language="ILAsm" Value=".property int32 BufferWidth" />
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<MemberSignature Language="VB.NET" Value="Public Shared Property BufferWidth As Integer" />
<MemberSignature Language="F#" Value="static member BufferWidth : int with get, set" Usage="System.Console.BufferWidth" />
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<summary>Gets or sets the width of the buffer area.</summary>
<value>The current width, in columns, of the buffer area.</value>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
If a set operation decreases the value of the <xref:System.Console.BufferWidth%2A> property, the rightmost columns are removed. For example, if the number of columns is reduced from 80 to 60, columns 60 through 79 of each row are removed.
## Examples
This example demonstrates the <xref:System.Console.BufferHeight%2A> and <xref:System.Console.BufferWidth%2A> properties. The example reports the dimensions of an operating system window set to a buffer size of 300 rows and 85 columns.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/console.bufferHW/CPP/hw.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/Console/BufferHeight/hw.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR/console.bufferHW/FS/hw.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/console.bufferHW/VB/hw.vb" id="Snippet1":::
]]></format>
</remarks>
<exception cref="T:System.ArgumentOutOfRangeException">The value in a set operation is less than or equal to zero.
-or-
The value in a set operation is greater than or equal to <see cref="F:System.Int16.MaxValue">Int16.MaxValue</see>.
-or-
The value in a set operation is less than <see cref="P:System.Console.WindowLeft" /> + <see cref="P:System.Console.WindowWidth" />.</exception>
<exception cref="T:System.Security.SecurityException">The user does not have permission to perform this action.</exception>
<exception cref="T:System.IO.IOException">An I/O error occurred.</exception>
<exception cref="T:System.PlatformNotSupportedException">The set operation is invoked on an operating system other than Windows.</exception>
</Docs>
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<ReturnType>System.ConsoleCancelEventHandler</ReturnType>
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<summary>Occurs when the <see cref="F:System.ConsoleModifiers.Control" /> modifier key (Ctrl) and either the <see cref="F:System.ConsoleKey.C" /> console key (C) or the Break key are pressed simultaneously (Ctrl+C or Ctrl+Break).</summary>
<remarks>
<format type="text/markdown"><.
When the user presses either Ctrl+C or Ctrl+Break, the <xref:System.Console.CancelKeyPress> event is fired and the application's <xref:System.ConsoleCancelEventHandler> event handler is executed. The event handler is passed a <xref:System.ConsoleCancelEventArgs> object that has two useful properties:
- <xref:System.ConsoleCancelEventArgs.SpecialKey%2A>, which allows you to determine whether the handler was invoked as a result of the user pressing Ctrl+C (the property value is <xref:System.ConsoleSpecialKey.ControlC?displayProperty=nameWithType>) or Ctrl+Break (the property value is <xref:System.ConsoleSpecialKey.ControlBreak?displayProperty=nameWithType>).
- <xref:System.ConsoleCancelEventArgs.Cancel%2A>, which allows you to determine how your application should respond to the user pressing Ctrl+C or Ctrl+Break. By default, the <xref:System.ConsoleCancelEventArgs.Cancel%2A> property is `false`, which causes program execution to terminate when the event handler exits. Changing its property to `true` specifies that the application should continue to execute.
> [!TIP]
> If your application has simple requirements, you can use the <xref:System.Console.TreatControlCAsInput%2A> property instead of this event. By setting this property to `false`, you can ensure that your application always exits if the user presses Ctrl+C. By setting it to `true`, you can ensure that pressing Ctrl+C will not terminate the application.
The event handler for this event is executed on a thread pool thread.
## Examples
The following example demonstrates how the <xref:System.Console.CancelKeyPress> event is used. When you press Ctrl+C, the read operation is interrupted and the `myHandler` event handler is invoked. Upon entry to the event handler, the <xref:System.ConsoleCancelEventArgs.Cancel%2A?displayProperty=nameWithType> property is `false`, which means that the current process will terminate when the event handler terminates. However, the event handler sets the <xref:System.ConsoleCancelEventArgs.Cancel%2A?displayProperty=nameWithType> property to `true`, which means that the process will not terminate and the read operation will resume.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/console.cancelkeypress/cpp/ckp.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/Console/CancelKeyPress/ckp.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR/console.cancelkeypress/fs/ckp.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/console.cancelkeypress/vb/ckp.vb" id="Snippet1":::
]]></format>
</remarks>
<altmember cref="T:System.ConsoleCancelEventArgs" />
<altmember cref="T:System.ConsoleCancelEventHandler" />
<altmember cref="P:System.Console.TreatControlCAsInput" />
</Docs>
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<Docs>
<summary>Gets a value indicating whether the CAPS LOCK keyboard toggle is turned on or turned off.</summary>
<value>
<see langword="true" /> if CAPS LOCK is turned on; <see langword="false" /> if CAPS LOCK is turned off.</value>
<remarks>To be added.</remarks>
<exception cref="T:System.PlatformNotSupportedException">The get operation is invoked on an operating system other than Windows.</exception>
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<summary>Clears the console buffer and corresponding console window of display information.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
Using the <xref:System.Console.Clear%2A> method is equivalent invoking the MS-DOS `cls` command in the command prompt window. When the <xref:System.Console.Clear%2A> method is called, the cursor automatically scrolls to the top-left corner of the window and the contents of the screen buffer are set to blanks using the current foreground background colors.
> [!NOTE]
> Attempting to call the <xref:System.Console.Clear%2A> method when a console application's output is redirected to a file throws a <xref:System.IO.IOException>. To prevent this, always wrap a call to the <xref:System.Console.Clear%2A> method in a `try`…`catch` block.
## Examples
The following example uses the <xref:System.Console.Clear%2A> method to clear the console before it executes a loop, prompts the user to select a foreground and background color and to enter a string to display. If the user chooses not to exit the program, the console's original foreground and background colors are restored and the <xref:System.Console.Clear%2A> method is called again before re-executing the loop.
:::code language="csharp" source="~/snippets/csharp/System/Console/Clear/clear1.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR_System/system.console.clear/fs/clear1.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR_System/system.console.clear/vb/clear1.vb" id="Snippet1":::
The example relies on a `GetKeyPress` method to validate the user's selection of a foreground and background color.
This example demonstrates the <xref:System.Console.CursorLeft%2A> and <xref:System.Console.CursorTop%2A> properties, and the <xref:System.Console.SetCursorPosition%2A> and <xref:System.Console.Clear%2A> methods. The example positions the cursor, which determines where the next write will occur, to draw a 5 character by 5 character rectangle using a combination of "+", "|", and "-" strings. Note that the rectangle could be drawn with fewer steps using a combination of other strings.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/console.cursorLTS/CPP/lts.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/Console/Clear/lts.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR/console.cursorLTS/FS/lts.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/console.cursorLTS/VB/lts.vb" id="Snippet1":::
]]></format>
</remarks>
<exception cref="T:System.IO.IOException">An I/O error occurred.</exception>
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<summary>Gets or sets the column position of the cursor within the buffer area.</summary>
<value>The current position, in columns, of the cursor.</value>
<remarks>
<format type="text/markdown"><![CDATA[
## Examples
This example demonstrates the <xref:System.Console.CursorLeft%2A> and <xref:System.Console.CursorTop%2A> properties, and the <xref:System.Console.SetCursorPosition%2A> and <xref:System.Console.Clear%2A> methods. The example positions the cursor, which determines where the next write will occur, to draw a 5 character by 5 character rectangle using a combination of "+", "|", and "-" strings. Note that the rectangle could be drawn with fewer steps using a combination of other strings.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/console.cursorLTS/CPP/lts.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/Console/Clear/lts.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR/console.cursorLTS/FS/lts.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/console.cursorLTS/VB/lts.vb" id="Snippet1":::
]]></format>
</remarks>
<exception cref="T:System.ArgumentOutOfRangeException">The value in a set operation is less than zero.
-or-
The value in a set operation is greater than or equal to <see cref="P:System.Console.BufferWidth" />.</exception>
<exception cref="T:System.Security.SecurityException">The user does not have permission to perform this action.</exception>
<exception cref="T:System.IO.IOException">An I/O error occurred.</exception>
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<summary>Gets or sets the height of the cursor within a character cell.</summary>
<value>The size of the cursor expressed as a percentage of the height of a character cell. The property value ranges from 1 to 100.</value>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The cursor appearance varies, ranging from a horizontal line at the bottom of the cell when the property value is 1, to completely filling the cell when the property value is 100.
## Examples
This example demonstrates the <xref:System.Console.CursorSize%2A> property. The example increases the size of the cursor each time any console key is pressed, then restores the cursor to its original size before terminating.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/console.cursorsize/CPP/csize.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/Console/CursorSize/csize.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/VS_Snippets_CLR/console.cursorsize/FS/csize.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/console.cursorsize/VB/csize.vb" id="Snippet1":::
]]></format>
</remarks>
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<AttributeName Language="F#">[<System.Runtime.Versioning.UnsupportedOSPlatform("tvos")>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1">
<AttributeName Language="C#">[get: System.Security.SecuritySafeCritical]</AttributeName>
<AttributeName Language="F#">[<get: System.Security.SecuritySafeCritical>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="netframework-4.0">
<AttributeName Language="C#">[set: System.Security.SecuritySafeCritical]</AttributeName>
<AttributeName Language="F#">[<set: System.Security.SecuritySafeCritical>]</AttributeName>
</Attribute>
</Attributes>