subprojects/gstreamer-sharp/sources/generated/Gst/GstSharp.PadForwardFunctionNative.cs

   1 // This file was generated by the Gtk# code generator.
   2 // Any changes made will be lost if regenerated.
   3
   4 namespace GstSharp {
   5
   6         using System;
   7         using System.Runtime.InteropServices;
   8
   9 #region Autogenerated code
  10         [UnmanagedFunctionPointer (CallingConvention.Cdecl)]
  11         internal delegate bool PadForwardFunctionNative(IntPtr pad, IntPtr user_data);
  12
  13         internal class PadForwardFunctionInvoker {
  14
  15                 PadForwardFunctionNative native_cb;
  16                 IntPtr __data;
  17                 GLib.DestroyNotify __notify;
  18
  19                 ~PadForwardFunctionInvoker ()
  20                 {
  21                         if (__notify == null)
  22                                 return;
  23                         __notify (__data);
  24                 }
  25
  26                 internal PadForwardFunctionInvoker (PadForwardFunctionNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
  27
  28                 internal PadForwardFunctionInvoker (PadForwardFunctionNative native_cb, IntPtr data) : this (native_cb, data, null) {}
  29
  30                 internal PadForwardFunctionInvoker (PadForwardFunctionNative native_cb, IntPtr data, GLib.DestroyNotify notify)
  31                 {
  32                         this.native_cb = native_cb;
  33                         __data = data;
  34                         __notify = notify;
  35                 }
  36
  37                 internal Gst.PadForwardFunction Handler {
  38                         get {
  39                                 return new Gst.PadForwardFunction(InvokeNative);
  40                         }
  41                 }
  42
  43                 bool InvokeNative (Gst.Pad pad)
  44                 {
  45                         bool __result = native_cb (pad == null ? IntPtr.Zero : pad.Handle, __data);
  46                         return __result;
  47                 }
  48         }
  49
  50         internal class PadForwardFunctionWrapper {
  51
  52                 public bool NativeCallback (IntPtr pad, IntPtr user_data)
  53                 {
  54                         try {
  55                                 bool __ret = managed (GLib.Object.GetObject(pad) as Gst.Pad);
  56                                 if (release_on_call)
  57                                         gch.Free ();
  58                                 return __ret;
  59                         } catch (Exception e) {
  60                                 GLib.ExceptionManager.RaiseUnhandledException (e, false);
  61                                 return false;
  62                         }
  63                 }
  64
  65                 bool release_on_call = false;
  66                 GCHandle gch;
  67
  68                 public void PersistUntilCalled ()
  69                 {
  70                         release_on_call = true;
  71                         gch = GCHandle.Alloc (this);
  72                 }
  73
  74                 internal PadForwardFunctionNative NativeDelegate;
  75                 Gst.PadForwardFunction managed;
  76
  77                 public PadForwardFunctionWrapper (Gst.PadForwardFunction managed)
  78                 {
  79                         this.managed = managed;
  80                         if (managed != null)
  81                                 NativeDelegate = new PadForwardFunctionNative (NativeCallback);
  82                 }
  83
  84                 public static Gst.PadForwardFunction GetManagedDelegate (PadForwardFunctionNative native)
  85                 {
  86                         if (native == null)
  87                                 return null;
  88                         PadForwardFunctionWrapper wrapper = (PadForwardFunctionWrapper) native.Target;
  89                         if (wrapper == null)
  90                                 return null;
  91                         return wrapper.managed;
  92                 }
  93         }
  94 #endregion
  95 }