PrivateFontCollection.cs source code in C# .NET

                        Code:
                         / Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / CommonUI / System / Drawing / Advanced / PrivateFontCollection.cs / 1 / PrivateFontCollection.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

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.
// 
//----------------------------------------------------------------------------- 

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.
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PrivateFontCollection.cs source code in C# .NET

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