public static DxfOle.Type OleItemType(DxfOle ole)
{
try
{
object o = OleHelper.smethod_0(ole);
if (o == null)
{
return(DxfOle.Type.Unknown);
}
IntPtr iunknownForObject = Marshal.GetIUnknownForObject(o);
if (iunknownForObject != IntPtr.Zero)
{
Guid iid = new Guid("0000011d-0000-0000-C000-000000000046");
IntPtr ppv;
Marshal.QueryInterface(iunknownForObject, ref iid, out ppv);
if (ppv != IntPtr.Zero)
{
Marshal.Release(ppv);
Marshal.Release(iunknownForObject);
return(DxfOle.Type.Link);
}
OleHelper.Interface20 objectForIunknown = Marshal.GetObjectForIUnknown(iunknownForObject) as OleHelper.Interface20;
Marshal.Release(iunknownForObject);
uint dwStatus = 0;
return(objectForIunknown.imethod_19(1U, ref dwStatus) == 0 && ((int)dwStatus & 8) == 0 ? DxfOle.Type.Embedded : DxfOle.Type.Static);
}
}
catch (Exception ex)
{
}
return(DxfOle.Type.Unknown);
}
public static Bitmap Preview(DxfOle ole, int width, int height)
{
object obj = OleHelper.smethod_0(ole);
if (obj == null || width <= 0 || height <= 0)
{
return((Bitmap)null);
}
Rectangle lprcBounds = new Rectangle(0, 0, width, height);
Bitmap bitmap = new Bitmap(width, height);
int num;
using (Graphics graphics = Graphics.FromImage((Image)bitmap))
{
IntPtr hdc = graphics.GetHdc();
try
{
num = OleHelper.OleDraw(obj, (uint)ole.DrawAspect, hdc, ref lprcBounds);
}
finally
{
Marshal.FinalReleaseComObject(obj);
graphics.ReleaseHdc(hdc);
}
}
if (num == 0)
{
return(bitmap);
}
bitmap.Dispose();
return((Bitmap)null);
}
public static string OleUserType(DxfOle ole)
{
object o = OleHelper.smethod_0(ole);
if (o != null)
{
IntPtr iunknownForObject = Marshal.GetIUnknownForObject(o);
if (iunknownForObject != IntPtr.Zero)
{
OleHelper.Interface20 objectForIunknown = Marshal.GetObjectForIUnknown(iunknownForObject) as OleHelper.Interface20;
Marshal.Release(iunknownForObject);
if (objectForIunknown == null)
{
return((string)null);
}
string str = (string)null;
try
{
str = objectForIunknown.imethod_13(1U);
}
catch (COMException ex)
{
}
return(str);
}
}
return((string)null);
}
public static void FinishCreate(DxfOle ole)
{
object pUnk = OleHelper.smethod_0(ole);
if (pUnk == null)
{
return;
}
OleHelper.OleSetContainedObject(pUnk, true);
}
public static string OleLinkPath(DxfOle ole)
{
object o = OleHelper.smethod_0(ole);
if (o != null)
{
IntPtr iunknownForObject = Marshal.GetIUnknownForObject(o);
if (iunknownForObject != IntPtr.Zero)
{
OleHelper.Interface21 objectForIunknown = Marshal.GetObjectForIUnknown(iunknownForObject) as OleHelper.Interface21;
Marshal.Release(iunknownForObject);
return(objectForIunknown?.imethod_5());
}
}
return((string)null);
}
public static void OleHiMetrics(DxfOle ole, out int width, out int height)
{
width = 1000;
height = 1000;
object o = OleHelper.smethod_0(ole);
if (o == null)
{
return;
}
IntPtr iunknownForObject = Marshal.GetIUnknownForObject(o);
if (!(iunknownForObject != IntPtr.Zero))
{
return;
}
OleHelper.Interface20 objectForIunknown = Marshal.GetObjectForIUnknown(iunknownForObject) as OleHelper.Interface20;
Marshal.Release(iunknownForObject);
if (objectForIunknown == null)
{
return;
}
if (ole.OleObjectType == DxfOle.Type.Link && objectForIunknown.imethod_11() == 0U)
{
objectForIunknown.imethod_10();
}
if (ole.OleObjectType == DxfOle.Type.Static)
{
return;
}
Size psizel = new Size();
objectForIunknown.imethod_15((uint)ole.DrawAspect, ref psizel);
width = psizel.Width;
height = psizel.Height;
}