public EncoderParameters GetEncoderParameterList(Guid encoder)
{
EncoderParameters parameters;
int num;
int status = SafeNativeMethods.Gdip.GdipGetEncoderParameterListSize(new HandleRef(this, this.nativeImage), ref encoder, out num);
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
if (num <= 0)
{
return(null);
}
IntPtr buffer = Marshal.AllocHGlobal(num);
status = SafeNativeMethods.Gdip.GdipGetEncoderParameterList(new HandleRef(this, this.nativeImage), ref encoder, num, buffer);
try
{
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
parameters = EncoderParameters.ConvertFromMemory(buffer);
}
finally
{
Marshal.FreeHGlobal(buffer);
}
return(parameters);
}
/// <summary>
/// Returns information about the codecs used for this <see cref='Image'/>.
/// </summary>
public EncoderParameters GetEncoderParameterList(Guid encoder)
{
EncoderParameters p;
Gdip.CheckStatus(Gdip.GdipGetEncoderParameterListSize(
new HandleRef(this, nativeImage),
ref encoder,
out int size));
if (size <= 0)
{
return(null);
}
IntPtr buffer = Marshal.AllocHGlobal(size);
try
{
Gdip.CheckStatus(Gdip.GdipGetEncoderParameterList(
new HandleRef(this, nativeImage),
ref encoder,
size,
buffer));
p = EncoderParameters.ConvertFromMemory(buffer);
}
finally
{
Marshal.FreeHGlobal(buffer);
}
return(p);
}
/// <summary>
/// Returns information about the codecs used for this <see cref='Image'/>.
/// </summary>
public EncoderParameters GetEncoderParameterList(Guid encoder)
{
EncoderParameters p;
int size;
int status = SafeNativeMethods.Gdip.GdipGetEncoderParameterListSize(new HandleRef(this, nativeImage),
ref encoder,
out size);
if (status != SafeNativeMethods.Gdip.Ok)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
if (size <= 0)
{
return(null);
}
IntPtr buffer = Marshal.AllocHGlobal(size);
try
{
status = SafeNativeMethods.Gdip.GdipGetEncoderParameterList(new HandleRef(this, nativeImage),
ref encoder,
size,
buffer);
if (status != SafeNativeMethods.Gdip.Ok)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
p = EncoderParameters.ConvertFromMemory(buffer);
}
finally
{
Marshal.FreeHGlobal(buffer);
}
return(p);
}
public EncoderParameters GetEncoderParameterList(Guid encoder)
{
Status status;
uint sz;
status = GDIPlus.GdipGetEncoderParameterListSize(nativeObject, ref encoder, out sz);
GDIPlus.CheckStatus(status);
IntPtr rawEPList = Marshal.AllocHGlobal((int)sz);
EncoderParameters eps;
try {
status = GDIPlus.GdipGetEncoderParameterList(nativeObject, ref encoder, sz, rawEPList);
eps = EncoderParameters.ConvertFromMemory(rawEPList);
GDIPlus.CheckStatus(status);
}
finally {
Marshal.FreeHGlobal(rawEPList);
}
return(eps);
}