Source code for getdimensions.cs

using System;

using System.Collections.Generic;

using System.IO;

using System.Text.RegularExpressions;

using Shell32;

// Add a reference to "Microsoft Shell Controls and Automation" from the COM tab of the References dialog

namespace RobvanderWoude

{

	internal class GetDimensions

	{

		static readonly string progver = "1.00";

		[STAThread]

		static int Main( string[] args )

		{

			bool returnheight = false;

			int imgwidth = 0;

			int imgheight = 0;

			string dimensions = string.Empty;

			#region Parse Command Line

			foreach ( string arg in args )

			{

				if ( arg == "/?" )

				{

					return ShowHelp( );

				}

			}

			if ( args.Length == 0 )

			{

				return ShowHelp( );

			}

			if ( args.Length > 2 )

			{

				return ShowHelp( "Too many command line arguments" );

			}

			if ( !File.Exists( args[0] ) )

			{

				return ShowHelp( "File not found: \"{0}\"", args[0] );

			}

			string parentfolder = Directory.GetParent( args[0] ).FullName;

			string imagename = Path.GetFileName( args[0] );

			if ( args.Length > 1 )

			{

				if ( args[1].ToUpper( ) == "/H" )

				{

					returnheight = true;

				}

				else

				{

					return ShowHelp( "Invalid command line argument \"{0}\"", args[1].Trim( "\" ".ToCharArray( ) ) );

				}

			}

			#endregion Parse Command Line

			#region Get Image Dimensions

			List<string> headers = new List<string>( );

			Shell shell = new Shell( );

			Folder folder = shell.NameSpace( parentfolder );

			FolderItem image = folder.ParseName( imagename );

			for ( int i = 0; i < short.MaxValue; i++ )

			{

				string header = folder.GetDetailsOf( null, i );

				if ( string.IsNullOrEmpty( header ) )

				{

					break;

				}

				headers.Add( header );

			}

			for ( int i = 0; i < headers.Count; i++ )

			{

				if ( headers[i] == "Dimensions" )

				{

					dimensions = folder.GetDetailsOf( image, i );

				}

			}

			if ( string.IsNullOrWhiteSpace( dimensions ) )

			{

				return ShowHelp( "Unable to determine the file's dimensions" );

			}

			string pattern = "(\\d+)\\s*x\\s*(\\d+)";

			Regex regex = new Regex( pattern );

			if ( !regex.IsMatch( dimensions ) )

			{

				return ShowHelp( "Unable to determine the file's dimensions" );

			}

			imgwidth = int.Parse( regex.Matches( dimensions )[0].Groups[1].Value );

			imgheight = int.Parse( regex.Matches( dimensions )[0].Groups[2].Value );

			#endregion Get Image Dimensions

			Console.WriteLine( dimensions );

			if ( returnheight )

			{

				return imgheight;

			}

			else

			{

				return imgwidth;

			}

		}

		public static int ShowHelp( params string[] errmsg )

		{

			#region Error Message

			if ( errmsg.Length > 0 )

			{

				List<string> errargs = new List<string>( errmsg );

				errargs.RemoveAt( 0 );

				Console.Error.WriteLine( );

				Console.ForegroundColor = ConsoleColor.Red;

				Console.Error.Write( "ERROR:\t" );

				Console.ForegroundColor = ConsoleColor.White;

				Console.Error.WriteLine( errmsg[0], errargs.ToArray( ) );

				Console.ResetColor( );

			}

			#endregion Error Message

			#region Help Text

			/*

			GetDimensions.exe,  Version 1.00

			Get the dimensions of an image file

			Usage:    GetDimensions.exe  imagefile  [ /H ]

			Where:    imagefile     is the image file whose dimensions we want to know

					  /H            return code equals image Height

			                        (default: return code equals image width)

			Notes:    This program can get the dimensions for any image type that is

			          recognized in Windows Explorer.

			          Return code equals the image width, or with /H switch the image

			          height, or -1 in case of errors.

			Written by Rob van der Woude

			https://www.robvanderwoude.com

			*/

			#endregion Help Text

			#region Display Help Text

			Console.Error.WriteLine( );

			Console.Error.WriteLine( "GetDimensions.exe,  Version {0}", progver );

			Console.Error.WriteLine( "Get the dimensions of an image file" );

			Console.Error.WriteLine( );

			Console.Error.Write( "Usage:    " );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.WriteLine( "GetDimensions.exe  imagefile  [ /H ]" );

			Console.ResetColor( );

			Console.Error.WriteLine( );

			Console.Error.Write( "Where:    " );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "imagefile" );

			Console.ResetColor( );

			Console.Error.WriteLine( "     is the image file whose dimensions we want to know" );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "          /H" );

			Console.ResetColor( );

			Console.Error.Write( "            return code equals image " );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "H" );

			Console.ResetColor( );

			Console.Error.WriteLine( "eight" );

			Console.Error.WriteLine( "                        (default: return code equals image width)" );

			Console.Error.WriteLine( );

			Console.Error.WriteLine( "Notes:    This program can get the dimensions for any image type that is" );

			Console.Error.WriteLine( "          recognized in Windows Explorer." );

			Console.Error.Write( "          Return code equals the image width, or with " );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "/H" );

			Console.ResetColor( );

			Console.Error.WriteLine( " switch the image" );

			Console.Error.WriteLine( "          height, or -1 in case of errors." );

			Console.Error.WriteLine( );

			Console.Error.WriteLine( "Written by Rob van der Woude" );

			Console.Error.WriteLine( "https://www.robvanderwoude.com" );

			#endregion Display Help Text

			return -1;

		}

	}

}