initial commit

ClosestResolution.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34330.188
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ClosestResolution", "ClosestResolution\ClosestResolution.csproj", "{B325C9A4-7C34-4267-97C7-718A8A426B39}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B325C9A4-7C34-4267-97C7-718A8A426B39}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B325C9A4-7C34-4267-97C7-718A8A426B39}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B325C9A4-7C34-4267-97C7-718A8A426B39}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B325C9A4-7C34-4267-97C7-718A8A426B39}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {487A82F9-F592-43C4-BC39-82FB90295C18}
+	EndGlobalSection
+EndGlobal

ClosestResolution/ClosestResolution.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+</Project>

ClosestResolution/ClosestResolution.csproj.user

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+    <ItemGroup>
+        <Compile Update="Form1.cs">
+            <SubType>Form</SubType>
+        </Compile>
+    </ItemGroup>
+</Project>

ClosestResolution/Form1.Designer.cs

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+namespace ClosestResolution
+{
+    partial class Form1
+    {
+        /// <summary>
+        ///  Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        ///  Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        ///  Required method for Designer support - do not modify
+        ///  the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            txtX = new TextBox();
+            txtY = new TextBox();
+            lblX = new Label();
+            lblY = new Label();
+            SuspendLayout();
+            // 
+            // txtX
+            // 
+            txtX.Location = new Point(12, 12);
+            txtX.Name = "txtX";
+            txtX.Size = new Size(100, 23);
+            txtX.TabIndex = 0;
+            txtX.TextChanged += TextChanged;
+            // 
+            // txtY
+            // 
+            txtY.Location = new Point(12, 41);
+            txtY.Name = "txtY";
+            txtY.Size = new Size(100, 23);
+            txtY.TabIndex = 0;
+            txtY.TextChanged += TextChanged;
+            // 
+            // lblX
+            // 
+            lblX.AutoSize = true;
+            lblX.Location = new Point(118, 15);
+            lblX.Name = "lblX";
+            lblX.Size = new Size(38, 15);
+            lblX.TabIndex = 1;
+            lblX.Text = "label1";
+            // 
+            // lblY
+            // 
+            lblY.AutoSize = true;
+            lblY.Location = new Point(118, 44);
+            lblY.Name = "lblY";
+            lblY.Size = new Size(38, 15);
+            lblY.TabIndex = 1;
+            lblY.Text = "label1";
+            // 
+            // Form1
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(201, 90);
+            Controls.Add(lblY);
+            Controls.Add(lblX);
+            Controls.Add(txtY);
+            Controls.Add(txtX);
+            Name = "Form1";
+            Text = "Form1";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private TextBox txtX;
+        private TextBox txtY;
+        private Label lblX;
+        private Label lblY;
+    }
+}

ClosestResolution/Form1.cs

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+namespace ClosestResolution
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void TextChanged(object sender, EventArgs e)
+        {
+            //try get int from textbox
+            if (int.TryParse(txtX.Text, out int width) && int.TryParse(txtY.Text, out int height))
+            {
+                //get closest resolution
+                var closest = ClosestResolution(width, height);
+                //set label text
+                lblX.Text = closest.Width.ToString();
+                lblY.Text = closest.Height.ToString();
+            }
+            else
+            {
+                lblX.Text = "Error";
+                lblY.Text = "Error";
+            }
+        }
+
+        private Size ClosestResolution(int width, int height)
+        {
+            //always go down in size in only one dimension
+            if (width > height) //landscape
+            {
+                if ((width / 3) * 4 > height) //height needs to be kept
+                {
+                    return new Size((height * 4) / 3, height);
+                }
+                else
+                {
+                    return new Size(width, (width * 3) / 4);
+                }
+            }
+            else //portrait
+            {
+                if ((height / 3) * 4 < width) //width needs to be kept
+                {
+                    return new Size(width, (width * 4) / 3);
+                }
+                else
+                {
+                    return new Size((height * 3) / 4, height);
+                }
+            }
+        }
+    }
+}

ClosestResolution/Form1.resx

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+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

ClosestResolution/Program.cs

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+namespace ClosestResolution
+{
+    internal static class Program
+    {
+        /// <summary>
+        ///  The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            // To customize application configuration such as set high DPI settings or default font,
+            // see https://aka.ms/applicationconfiguration.
+            ApplicationConfiguration.Initialize();
+            Application.Run(new Form1());
+        }
+    }
+}