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;
}
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;
}