PrivateFontCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / CommonUI / System / Drawing / Advanced / PrivateFontCollection.cs / 1 / PrivateFontCollection.cs

                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/*************************************************************************\ 
* 
* Copyright (c) 1998-1999, Microsoft Corp.  All Rights Reserved.
* 
* Module Name:
*
*   font.cs
* 
* Abstract:
* 
*   COM+ wrapper for GDI+ font objects 
*
* Revision History: 
*
*   3/16/2000 [...]
*       Created it.
* 
\**************************************************************************/
 
namespace System.Drawing.Text { 

    using System.Diagnostics; 
    using System;
    using System.Drawing;
    using System.Drawing.Internal;
    using System.Runtime.InteropServices; 
    using System.ComponentModel;
    using Microsoft.Win32; 
    using System.Security; 
    using System.Security.Permissions;
    using System.Globalization; 

    /// 
    /// 
    ///    Encapsulates a collection of  objecs. 
    /// 
    public sealed class PrivateFontCollection : FontCollection { 
 
        /// 
        ///  
        ///    
        ///       Initializes a new instance of the  class.
        ///    
        ///  
        public PrivateFontCollection() {
            nativeFontCollection = IntPtr.Zero; 
 
            int status = SafeNativeMethods.Gdip.GdipNewPrivateFontCollection(out nativeFontCollection);
 
            if (status != SafeNativeMethods.Gdip.Ok)
                throw SafeNativeMethods.Gdip.StatusException(status);
        }
 
        /// 
        ///  
        ///     
        ///       Cleans up Windows resources for this
        ///     . 
        ///    
        /// 
        protected override void Dispose(bool disposing) {
            if (nativeFontCollection != IntPtr.Zero) { 
                try{
#if DEBUG 
                    int status = 
#endif
                    SafeNativeMethods.Gdip.GdipDeletePrivateFontCollection(out nativeFontCollection); 
#if DEBUG
                    Debug.Assert(status == SafeNativeMethods.Gdip.Ok, "GDI+ returned an error status: " + status.ToString(CultureInfo.InvariantCulture));
#endif
                } 
                catch( Exception ex ){
                    if( ClientUtils.IsSecurityOrCriticalException( ex ) ) { 
                        throw; 
                    }
 
                    Debug.Fail( "Exception thrown during Dispose: " + ex.ToString() );
                }
                finally{
                    nativeFontCollection = IntPtr.Zero; 
                }
            } 
 
            base.Dispose(disposing);
        } 

        /// 
        /// 
        ///     
        ///       Adds a font from the specified file to
        ///       this . 
        ///     
        /// 
        public void AddFontFile (string filename) { 
            IntSecurity.DemandReadFileIO(filename);
            int status = SafeNativeMethods.Gdip.GdipPrivateAddFontFile(new HandleRef(this, nativeFontCollection), filename);

            if (status != SafeNativeMethods.Gdip.Ok) 
                throw SafeNativeMethods.Gdip.StatusException(status);
 
            // Register private font with GDI as well so pure GDI-based controls (TextBox, Button for instance) can access it. 
            SafeNativeMethods.AddFontFile( filename );
        } 

        //

 

 
 

 


        public void AddMemoryFont (IntPtr memory, int length) {
            IntSecurity.ObjectFromWin32Handle.Demand(); 

            int status = SafeNativeMethods.Gdip.GdipPrivateAddMemoryFont(new HandleRef(this, nativeFontCollection), new HandleRef(null, memory), length); 
 
            if (status != SafeNativeMethods.Gdip.Ok)
                throw SafeNativeMethods.Gdip.StatusException(status); 
        }
    }
}
 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007. 
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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