public ManagedWimLibCallback(WimLibCallback callback, object userData) { _callback = callback ?? throw new ArgumentNullException("callback"); _userData = userData; // Avoid GC by keeping ref here NativeFunc = Callback; }
/// <summary> /// Same as wimlib_open_wim(), but allows specifying a progress function and\ /// progress context. If successful, the progress function will be registered in /// the newly open ::WIMStruct, as if by an automatic call to /// wimlib_register_progress_function(). In addition, if /// ::WIMLIB_OPEN_FLAG_CHECK_INTEGRITY is specified in @p open_flags, then the /// progress function will receive ::WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY /// messages while checking the WIM file's integrity. /// </summary> /// <param name="wimFile">The path to the WIM file to open.</param> /// <param name="openFlags">Bitwise OR of flags prefixed with WIMLIB_OPEN_FLAG.</param> /// <returns> /// On success, a pointer to a new ::WIMStruct backed by the specified /// on-disk WIM file is written to the memory location pointed to by this /// parameter.This ::WIMStruct must be freed using using wimlib_free() /// when finished with it. /// </returns> /// <exception cref="WimLibException">wimlib does not return WIMLIB_ERR_SUCCESS.</exception> public static Wim OpenWim(string wimFile, WimLibOpenFlags openFlags, WimLibCallback callback = null, object userData = null) { WimLibErrorCode ret = WimLibNative.OpenWim(wimFile, openFlags, out IntPtr wimPtr); WimLibException.CheckWimLibError(ret); Wim wim = new Wim(wimPtr); if (callback != null) { wim.RegisterCallback(callback, userData); } return(wim); }
/// <summary> /// Register a progress function with a ::WIMStruct. /// </summary> /// <param name="wim">The ::WIMStruct for which to register the progress function.</param> /// <param name="callback"> /// Pointer to the progress function to register. If the WIM already has a /// progress function registered, it will be replaced with this one. If @p /// NULL, the current progress function (if any) will be unregistered. /// </param> /// <param name="userData"> /// The value which will be passed as the third argument to calls to @p /// progfunc. /// </param> public void RegisterCallback(WimLibCallback callback, object userData = null) { if (callback != null) { // RegisterCallback ManagedCallback = new ManagedWimLibCallback(callback, userData); WimLibNative.RegisterProgressFunction(Ptr, ManagedCallback.NativeFunc, IntPtr.Zero); //ManagedCallback = new ManagedWimLibCallback(callback, userData); //WimLibNative.RegisterProgressFunction(Ptr, ManagedCallback.DummyCallback, IntPtr.Zero); } else { // Delete callback ManagedCallback = null; WimLibNative.RegisterProgressFunction(Ptr, null, IntPtr.Zero); } }