ImageFormat.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / CommonUI / System / Drawing / Advanced / ImageFormat.cs / 1305376 / ImageFormat.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Drawing.Imaging { 
 
    using System;
    using System.Diagnostics; 
    using System.Drawing;
    using System.ComponentModel;

    /** 
     * Image format constants
     */ 
    ///  
    /// 
    ///    Specifies the format of the image. 
    /// 
    [TypeConverterAttribute(typeof(ImageFormatConverter))]
    public sealed class ImageFormat {
        // Format IDs 
        // private static ImageFormat undefined = new ImageFormat(new Guid("{b96b3ca9-0728-11d3-9d7b-0000f81ef32e}"));
        private static ImageFormat memoryBMP = new ImageFormat(new Guid("{b96b3caa-0728-11d3-9d7b-0000f81ef32e}")); 
        private static ImageFormat bmp       = new ImageFormat(new Guid("{b96b3cab-0728-11d3-9d7b-0000f81ef32e}")); 
        private static ImageFormat emf       = new ImageFormat(new Guid("{b96b3cac-0728-11d3-9d7b-0000f81ef32e}"));
        private static ImageFormat wmf       = new ImageFormat(new Guid("{b96b3cad-0728-11d3-9d7b-0000f81ef32e}")); 
        private static ImageFormat jpeg      = new ImageFormat(new Guid("{b96b3cae-0728-11d3-9d7b-0000f81ef32e}"));
        private static ImageFormat png       = new ImageFormat(new Guid("{b96b3caf-0728-11d3-9d7b-0000f81ef32e}"));
        private static ImageFormat gif       = new ImageFormat(new Guid("{b96b3cb0-0728-11d3-9d7b-0000f81ef32e}"));
        private static ImageFormat tiff      = new ImageFormat(new Guid("{b96b3cb1-0728-11d3-9d7b-0000f81ef32e}")); 
        private static ImageFormat exif      = new ImageFormat(new Guid("{b96b3cb2-0728-11d3-9d7b-0000f81ef32e}"));
        private static ImageFormat photoCD   = new ImageFormat(new Guid("{b96b3cb3-0728-11d3-9d7b-0000f81ef32e}")); 
        private static ImageFormat flashPIX  = new ImageFormat(new Guid("{b96b3cb4-0728-11d3-9d7b-0000f81ef32e}")); 
        private static ImageFormat icon      = new ImageFormat(new Guid("{b96b3cb5-0728-11d3-9d7b-0000f81ef32e}"));
 

        private Guid guid;

        ///  
        /// 
        ///    Initializes a new instance of the  class with the specified GUID. 
        ///  
        public ImageFormat(Guid guid) {
            this.guid = guid; 
        }

        /// 
        ///  
        ///    Specifies a global unique identifier (GUID)
        ///    that represents this . 
        ///  
        public Guid Guid {
            get { return guid;} 
        }

        /// 
        ///  
        ///    Specifies a memory bitmap image format.
        ///  
        public static ImageFormat MemoryBmp { 
            get { return memoryBMP;}
        } 

        /// 
        /// 
        ///    Specifies the bitmap image format. 
        /// 
        public static ImageFormat Bmp { 
            get { return bmp;} 
        }
 
        /// 
        /// 
        ///    Specifies the enhanced Windows metafile
        ///    image format. 
        /// 
        public static ImageFormat Emf { 
            get { return emf;} 
        }
 
        /// 
        /// 
        ///    Specifies the Windows metafile image
        ///    format. 
        /// 
        public static ImageFormat Wmf { 
            get { return wmf;} 
        }
 
        /// 
        /// 
        ///    Specifies the GIF image format.
        ///  
        public static ImageFormat Gif {
            get { return gif;} 
        } 

        ///  
        /// 
        ///    Specifies the JPEG image format.
        /// 
        public static ImageFormat Jpeg { 
            get { return jpeg;}
        } 
 
        /// 
        ///  
        ///    
        ///       Specifies the W3C PNG image format.
        ///    
        ///  
        public static ImageFormat Png {
            get { return png;} 
        } 

        ///  
        /// 
        ///    Specifies the Tag Image File
        ///    Format (TIFF) image format.
        ///  
        public static ImageFormat Tiff {
            get { return tiff;} 
        } 

        ///  
        /// 
        ///    Specifies the Exchangable Image Format
        ///    (EXIF).
        ///  
        public static ImageFormat Exif {
            get { return exif;} 
        } 

        ///  
        /// 
        ///    
        ///       Specifies the Windows icon image format.
        ///     
        /// 
        public static ImageFormat Icon { 
            get { return icon;} 
        }
 
        /// 
        /// 
        ///    Returns a value indicating whether the
        ///    specified object is an  equivalent to this . 
        /// 
        [System.Runtime.TargetedPatchingOptOutAttribute("Performance critical to inline across NGen image boundaries")] 
        public override bool Equals(object o) { 
            ImageFormat format = o as ImageFormat;
            if (format == null) 
                return false;
            return this.guid == format.guid;
        }
 
        /// 
        ///  
        ///     
        ///       Returns a hash code.
        ///     
        /// 
        public override int GetHashCode() {
            return this.guid.GetHashCode();
        } 

#if !FEATURE_PAL 
        // Find any random encoder which supports this format 
        internal ImageCodecInfo FindEncoder() {
            ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders(); 
            foreach (ImageCodecInfo codec in codecs) {
                if (codec.FormatID.Equals(this.guid))
                    return codec;
            } 
            return null;
        } 
#endif 

        ///  
        /// 
        ///    Converts this  to a human-readable string.
        /// 
        public override string ToString() { 
            if (this == memoryBMP) return "MemoryBMP";
            if (this == bmp) return "Bmp"; 
            if (this == emf) return "Emf"; 
            if (this == wmf) return "Wmf";
            if (this == gif) return "Gif"; 
            if (this == jpeg) return "Jpeg";
            if (this == png) return "Png";
            if (this == tiff) return "Tiff";
            if (this == exif) return "Exif"; 
            if (this == icon) return "Icon";
            return "[ImageFormat: " + guid + "]"; 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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ImageFormat.cs source code in C# .NET

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