public static Bitmap ExtractImage(FileInfoEx entry, Size size, bool quality)
{
try
{
IntPtr iExtractImagePtr = IntPtr.Zero;
IExtractImage iExtractImage = null;
if (GetIExtractImage(entry, out iExtractImagePtr, out iExtractImage))
{
try
{
ShellDll.ShellAPI.SIZE prgSize = new ShellAPI.SIZE()
{
cx = size.Width, cy = size.Height
};
IExtractImageFlags flags = IExtractImageFlags.Cache | IExtractImageFlags.Aspect;
if (quality)
{
flags |= IExtractImageFlags.Quality;
}
StringBuilder location = new StringBuilder(260, 260);
try
{
int pdwPriority = 1;
iExtractImage.GetLocation(location,
location.Capacity, ref pdwPriority, ref prgSize, 32, ref flags);
}
catch (COMException) { }
IntPtr ptrBitmapImage = IntPtr.Zero;
iExtractImage.Extract(out ptrBitmapImage);
if (ptrBitmapImage != IntPtr.Zero)
{
return(Bitmap.FromHbitmap(ptrBitmapImage));
}
}
catch (Exception) { }
}
finally
{
if (iExtractImage != null)
{
Marshal.ReleaseComObject(iExtractImage);
}
if (iExtractImagePtr != IntPtr.Zero)
{
Marshal.Release(iExtractImagePtr);
}
}
return(null);
}
public static Bitmap ExtractImage(FileInfoEx entry, Size size, bool quality)
{
IntPtr iExtractImagePtr = IntPtr.Zero;
IExtractImage iExtractImage = null;
if (GetIExtractImage(entry, out iExtractImagePtr, out iExtractImage))
{
try
{
ShellDll.ShellAPI.SIZE prgSize = new ShellAPI.SIZE()
{
cx = size.Width, cy = size.Height
};
IExtractImageFlags flags = IExtractImageFlags.Async | IExtractImageFlags.Aspect;
if (quality)
{
flags |= IExtractImageFlags.Quality;
}
StringBuilder location = new StringBuilder(260, 260);
try
{
iExtractImage.GetLocation(location,
location.Capacity, 1, prgSize, 32, flags);
}
catch (COMException) { }
IntPtr ptrBitmapImage = IntPtr.Zero;
iExtractImage.Extract(out ptrBitmapImage);
if (ptrBitmapImage != IntPtr.Zero)
{
return(Bitmap.FromHbitmap(ptrBitmapImage));
}
}
catch (Exception) { }
}
