subprojects/gstreamer-sharp/sources/generated/Gst/GstSharp.CapsForeachFuncNative.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 CapsForeachFuncNative(IntPtr features, IntPtr structure, IntPtr user_data);
  12
  13         internal class CapsForeachFuncInvoker {
  14
  15                 CapsForeachFuncNative native_cb;
  16                 IntPtr __data;
  17                 GLib.DestroyNotify __notify;
  18
  19                 ~CapsForeachFuncInvoker ()
  20                 {
  21                         if (__notify == null)
  22                                 return;
  23                         __notify (__data);
  24                 }
  25
  26                 internal CapsForeachFuncInvoker (CapsForeachFuncNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
  27
  28                 internal CapsForeachFuncInvoker (CapsForeachFuncNative native_cb, IntPtr data) : this (native_cb, data, null) {}
  29
  30                 internal CapsForeachFuncInvoker (CapsForeachFuncNative 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.CapsForeachFunc Handler {
  38                         get {
  39                                 return new Gst.CapsForeachFunc(InvokeNative);
  40                         }
  41                 }
  42
  43                 bool InvokeNative (Gst.CapsFeatures features, Gst.Structure structure)
  44                 {
  45                         IntPtr native_features = GLib.Marshaller.StructureToPtrAlloc (features);
  46                         bool __result = native_cb (native_features, structure == null ? IntPtr.Zero : structure.Handle, __data);
  47                         Marshal.FreeHGlobal (native_features);
  48                         return __result;
  49                 }
  50         }
  51
  52         internal class CapsForeachFuncWrapper {
  53
  54                 public bool NativeCallback (IntPtr features, IntPtr structure, IntPtr user_data)
  55                 {
  56                         try {
  57                                 bool __ret = managed (Gst.CapsFeatures.New (features), structure == IntPtr.Zero ? null : (Gst.Structure) GLib.Opaque.GetOpaque (structure, typeof (Gst.Structure), false));
  58                                 if (release_on_call)
  59                                         gch.Free ();
  60                                 return __ret;
  61                         } catch (Exception e) {
  62                                 GLib.ExceptionManager.RaiseUnhandledException (e, false);
  63                                 return false;
  64                         }
  65                 }
  66
  67                 bool release_on_call = false;
  68                 GCHandle gch;
  69
  70                 public void PersistUntilCalled ()
  71                 {
  72                         release_on_call = true;
  73                         gch = GCHandle.Alloc (this);
  74                 }
  75
  76                 internal CapsForeachFuncNative NativeDelegate;
  77                 Gst.CapsForeachFunc managed;
  78
  79                 public CapsForeachFuncWrapper (Gst.CapsForeachFunc managed)
  80                 {
  81                         this.managed = managed;
  82                         if (managed != null)
  83                                 NativeDelegate = new CapsForeachFuncNative (NativeCallback);
  84                 }
  85
  86                 public static Gst.CapsForeachFunc GetManagedDelegate (CapsForeachFuncNative native)
  87                 {
  88                         if (native == null)
  89                                 return null;
  90                         CapsForeachFuncWrapper wrapper = (CapsForeachFuncWrapper) native.Target;
  91                         if (wrapper == null)
  92                                 return null;
  93                         return wrapper.managed;
  94                 }
  95         }
  96 #endregion
  97 }