static void OverrideTruncateFn(GLib.GType gtype, TruncateFnNativeDelegate callback) { unsafe { IntPtr *raw_ptr = (IntPtr *)(((long)gtype.GetClassPtr()) + (long)class_abi.GetFieldOffset("truncate_fn")); *raw_ptr = Marshal.GetFunctionPointerForDelegate((Delegate)callback); } }
private bool InternalTruncateFn(long size, GLib.Cancellable cancellable) { TruncateFnNativeDelegate unmanaged = class_abi.BaseOverride <TruncateFnNativeDelegate>(this.LookupGType(), "truncate_fn"); if (unmanaged == null) { throw new InvalidOperationException("No base method to invoke"); } IntPtr error = IntPtr.Zero; bool __result = unmanaged(this.Handle, size, cancellable == null ? IntPtr.Zero : cancellable.Handle, out error); return(__result); }
private bool InternalTruncateFn(long size, GLib.Cancellable cancellable) { TruncateFnNativeDelegate unmanaged = null; unsafe { IntPtr *raw_ptr = (IntPtr *)(((long)this.LookupGType().GetThresholdType().GetClassPtr()) + (long)class_abi.GetFieldOffset("truncate_fn")); unmanaged = (TruncateFnNativeDelegate)Marshal.GetDelegateForFunctionPointer(*raw_ptr, typeof(TruncateFnNativeDelegate)); } if (unmanaged == null) { throw new InvalidOperationException("No base method to invoke"); } IntPtr error = IntPtr.Zero; bool __result = unmanaged(this.Handle, size, cancellable == null ? IntPtr.Zero : cancellable.Handle, out error); return(__result); }
static void OverrideTruncateFn (GLib.GType gtype, TruncateFnNativeDelegate callback) { GFileIOStreamClass class_iface = GetClassStruct (gtype, false); class_iface.TruncateFn = callback; OverrideClassStruct (gtype, class_iface); }