public CGImage?CreateImage(int index, CGImageOptions options)
{
using (var dict = options?.ToDictionary()) {
var ret = CGImageSourceCreateImageAtIndex(Handle, index, dict.GetHandle());
return(ret == IntPtr.Zero ? null : new CGImage(ret, true));
}
}
public CGImage CreateImage(int index, CGImageOptions options)
{
using (var dict = options == null ? null : options.ToDictionary()) {
var ret = CGImageSourceCreateImageAtIndex(handle, index, dict == null ? IntPtr.Zero : dict.Handle);
return(ret == IntPtr.Zero ? null : new CGImage(ret, true));
}
}
public NSDictionary CopyProperties(CGImageOptions options, int imageIndex)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
return(CopyProperties(options.ToDictionary(), imageIndex));
}
public NSDictionary?CopyProperties(CGImageOptions options, int imageIndex)
{
if (options is null)
{
throw new ArgumentNullException(nameof(options));
}
using var dict = options.ToDictionary();
return(CopyProperties(dict, imageIndex));
}
public static CGImageSource FromData(NSData data, CGImageOptions options)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
using (var dict = options == null ? null : options.ToDictionary()) {
var result = CGImageSourceCreateWithData(data.Handle, dict == null ? IntPtr.Zero : dict.Handle);
return(result == IntPtr.Zero ? null : new CGImageSource(result, true));
}
}
public static CGImageSource FromDataProvider(CGDataProvider provider, CGImageOptions options)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
using (var dict = options == null ? null : options.ToDictionary()) {
var result = CGImageSourceCreateWithDataProvider(provider.Handle, dict == null ? IntPtr.Zero : dict.Handle);
return(result == IntPtr.Zero ? null : new CGImageSource(result, true));
}
}
public static CGImageSource FromUrl(NSUrl url, CGImageOptions options)
{
if (url == null)
{
throw new ArgumentNullException("url");
}
using (var dict = options == null ? null : options.ToDictionary()) {
var result = CGImageSourceCreateWithURL(url.Handle, dict == null ? IntPtr.Zero : dict.Handle);
return(result == IntPtr.Zero ? null : new CGImageSource(result, true));
}
}
public CGImageMetadata CopyMetadata(nint index, CGImageOptions options)
{
NSDictionary o = null;
if (options != null)
{
o = options.ToDictionary();
}
var result = CopyMetadata(index, o);
if (options != null)
{
o.Dispose();
}
return(result);
}
public static CGImageSource CreateIncremental(CGImageOptions options)
{
using (var dict = options == null ? null : options.ToDictionary())
return(new CGImageSource(CGImageSourceCreateIncremental(dict == null ? IntPtr.Zero : dict.Handle), true));
}
public CoreGraphics.CGImageProperties GetProperties(int index, CGImageOptions options = null)
{
return(new CoreGraphics.CGImageProperties(CopyProperties(options == null ? null : options.ToDictionary(), index)));
}
