Ejemplo n.º 1
0
        public static bool ShowCapPinDialog(ICaptureGraphBuilder2 bld, IBaseFilter flt, IntPtr hwnd)
        {
            object ppint = null;
            ISpecifyPropertyPages pages = null;
            bool     flag;
            DsCAUUID pPages = new DsCAUUID();

            try
            {
                Guid capture     = PinCategory.Capture;
                Guid interleaved = MediaType.Interleaved;
                Guid gUID        = typeof(IAMStreamConfig).GUID;
                if (bld.FindInterface(ref capture, ref interleaved, flt, ref gUID, out ppint) != 0)
                {
                    interleaved = MediaType.Video;
                    if (bld.FindInterface(ref capture, ref interleaved, flt, ref gUID, out ppint) != 0)
                    {
                        return(false);
                    }
                }
                pages = ppint as ISpecifyPropertyPages;
                if (pages == null)
                {
                    return(false);
                }
                int num = pages.GetPages(out pPages);
                num  = OleCreatePropertyFrame(hwnd, 30, 30, null, 1, ref ppint, pPages.cElems, pPages.pElems, 0, 0, IntPtr.Zero);
                flag = true;
            }
            catch (Exception exception)
            {
                Trace.WriteLine("!Ds.NET: ShowCapPinDialog " + exception.Message);
                flag = false;
            }
            finally
            {
                if (pPages.pElems != IntPtr.Zero)
                {
                    Marshal.FreeCoTaskMem(pPages.pElems);
                }
                pages = null;
                if (ppint != null)
                {
                    Marshal.ReleaseComObject(ppint);
                }
                ppint = null;
            }
            return(flag);
        }
 /// <summary> 
 ///  Show the property page. Some property pages cannot be displayed 
 ///  while previewing and/or capturing. 
 /// </summary>
 public override void Show(Control owner)
 {
     DsCAUUID pPages = new DsCAUUID();
     try
     {
         int pages = this.specifyPropertyPages.GetPages(out pPages);
         if (pages != 0)
         {
             Marshal.ThrowExceptionForHR(pages);
         }
         object specifyPropertyPages = this.specifyPropertyPages;
         pages = OleCreatePropertyFrame(owner.Handle, 30, 30, null, 1, ref specifyPropertyPages, pPages.cElems, pPages.pElems, 0, 0, IntPtr.Zero);
     }
     finally
     {
         if (pPages.pElems != IntPtr.Zero)
         {
             Marshal.FreeCoTaskMem(pPages.pElems);
         }
     }
 }
        /// <summary> 
        ///  Returns the object as an ISpecificPropertyPage
        ///  if the object supports the ISpecificPropertyPage
        ///  interface and has at least one property page.
        /// </summary>
        protected bool AddIfSupported(object o, string name)
        {
            ISpecifyPropertyPages specifyPropertyPages = null;
            DsCAUUID pPages = new DsCAUUID();
            bool wasAdded = false;

            // Determine if the object supports the interface
            // and has at least 1 property page
            try
            {
                specifyPropertyPages = o as ISpecifyPropertyPages;
                if (specifyPropertyPages != null)
                {
                    int hr = specifyPropertyPages.GetPages(out pPages);
                    if ((hr != 0) || (pPages.cElems <= 0))
                    {
                        specifyPropertyPages = null;
                    }
                }
            }
            finally
            {
                if (pPages.pElems != IntPtr.Zero)
                {
                    Marshal.FreeCoTaskMem(pPages.pElems);
                }
            }

            // Add the page to the internal collection
            if (specifyPropertyPages != null)
            {
                DirectShowPropertyPage p = new DirectShowPropertyPage(name, specifyPropertyPages);
                base.InnerList.Add(p);
                wasAdded = true;
            }
            return wasAdded;
        }
Ejemplo n.º 4
0
 public static bool ShowTunerPinDialog(ICaptureGraphBuilder2 bld, IBaseFilter flt, IntPtr hwnd)
 {
     object ppint = null;
     ISpecifyPropertyPages pages = null;
     bool flag;
     DsCAUUID pPages = new DsCAUUID();
     try
     {
         Guid capture = PinCategory.Capture;
         Guid interleaved = MediaType.Interleaved;
         Guid gUID = typeof(IAMTVTuner).GUID;
         if (bld.FindInterface(ref capture, ref interleaved, flt, ref gUID, out ppint) != 0)
         {
             interleaved = MediaType.Video;
             if (bld.FindInterface(ref capture, ref interleaved, flt, ref gUID, out ppint) != 0)
             {
                 return false;
             }
         }
         pages = ppint as ISpecifyPropertyPages;
         if (pages == null)
         {
             return false;
         }
         int num = pages.GetPages(out pPages);
         num = OleCreatePropertyFrame(hwnd, 30, 30, null, 1, ref ppint, pPages.cElems, pPages.pElems, 0, 0, IntPtr.Zero);
         flag = true;
     }
     catch (Exception exception)
     {
         Trace.WriteLine("!Ds.NET: ShowCapPinDialog " + exception.Message);
         flag = false;
     }
     finally
     {
         if (pPages.pElems != IntPtr.Zero)
         {
             Marshal.FreeCoTaskMem(pPages.pElems);
         }
         pages = null;
         if (ppint != null)
         {
             Marshal.ReleaseComObject(ppint);
         }
         ppint = null;
     }
     return flag;
 }