CGImageMetadataTag(NSString xmlns, NSString prefix, NSString name, CGImageMetadataType type, IntPtr value)
{
if (xmlns == null)
throw new ArgumentNullException ("xmlns");
if (name == null)
throw new ArgumentNullException ("name");
// it won't crash - but the instance is invalid (null handle)
if (value == IntPtr.Zero)
throw new ArgumentNullException ("value");
var p = (prefix == null) ? IntPtr.Zero : prefix.Handle;
Handle = CGImageMetadataTagCreate (xmlns.Handle, p, name.Handle, type, value);
}
CGImageMetadataTag(NSString xmlns, NSString?prefix, NSString name, CGImageMetadataType type, IntPtr value)
{
if (xmlns is null)
{
throw new ArgumentNullException(nameof(xmlns));
}
if (name is null)
{
throw new ArgumentNullException(nameof(name));
}
// it won't crash - but the instance is invalid (null handle)
if (value == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(value));
}
InitializeHandle(CGImageMetadataTagCreate(xmlns.Handle, prefix.GetHandle(), name.Handle, type, value));
}
CGImageMetadataTag(NSString xmlns, NSString prefix, NSString name, CGImageMetadataType type, IntPtr value)
{
if (xmlns == null)
{
throw new ArgumentNullException("xmlns");
}
if (name == null)
{
throw new ArgumentNullException("name");
}
// it won't crash - but the instance is invalid (null handle)
if (value == IntPtr.Zero)
{
throw new ArgumentNullException("value");
}
var p = (prefix == null) ? IntPtr.Zero : prefix.Handle;
Handle = CGImageMetadataTagCreate(xmlns.Handle, p, name.Handle, type, value);
}
// CFBoolean support
public CGImageMetadataTag(NSString xmlns, NSString prefix, NSString name, CGImageMetadataType type, bool value) :
this(xmlns, prefix, name, type, value ? CFBoolean.TrueHandle : CFBoolean.FalseHandle)
{
}
// According to header file the CFType value can be:
// CFStringRef -> NSString (NSObject)
// CFNumberRef -> NSNumber (NSObject)
// CFBooleanRef -> no direct mapping
// CFArrayRef -> NSArray (NSObject)
// CFDictionary -> NSDictionary (NSObject)
public CGImageMetadataTag(NSString xmlns, NSString prefix, NSString name, CGImageMetadataType type, NSObject value) :
this(xmlns, prefix, name, type, value == null ? IntPtr.Zero : value.Handle)
{
}
extern static /* CGImageMetadataTagRef __nullable */ IntPtr CGImageMetadataTagCreate(
/* CFStringRef __nonnull */ IntPtr xmlns, /* CFStringRef __nullable */ IntPtr prefix,
/* CFStringRef __nonnull */ IntPtr name, CGImageMetadataType type, /* CFTypeRef __nonnull */ IntPtr value);
public CGImageMetadataTag(NSString xmlns, NSString?prefix, NSString name, CGImageMetadataType type, NSObject?value) :
this(xmlns, prefix, name, type, value.GetHandle())
{
}
// CFBoolean support
public CGImageMetadataTag(NSString xmlns, NSString prefix, NSString name, CGImageMetadataType type, bool value)
: this(xmlns, prefix, name, type, value ? CFBoolean.True.Handle : CFBoolean.False.Handle)
{
}
// According to header file the CFType value can be:
// CFStringRef -> NSString (NSObject)
// CFNumberRef -> NSNumber (NSObject)
// CFBooleanRef -> no direct mapping
// CFArrayRef -> NSArray (NSObject)
// CFDictionary -> NSDictionary (NSObject)
public CGImageMetadataTag(NSString xmlns, NSString prefix, NSString name, CGImageMetadataType type, NSObject value)
: this(xmlns, prefix, name, type, value == null ? IntPtr.Zero : value.Handle)
{
}
static extern IntPtr CGImageMetadataTagCreate(
/* CFStringRef __nonnull */ IntPtr xmlns, /* CFStringRef __nullable */ IntPtr prefix,
/* CFStringRef __nonnull */ IntPtr name, CGImageMetadataType type, /* CFTypeRef __nonnull */ IntPtr value);
