public static void RegisterAppSchemaHandler(AppSchemaHandler handler)
{
AppSchemaHandler_ handler_ = ((url, mimeTypePtr, dataPtr) =>
{
string mimeType;
byte[] data = handler(url, out mimeType);
if (schemaHandlerData != IntPtr.Zero)
{
Marshal.FreeHGlobal(schemaHandlerData);
schemaHandlerData = IntPtr.Zero;
}
if (data != null)
{
schemaHandlerData = Marshal.AllocHGlobal(data.Length);
Marshal.Copy(data, 0, schemaHandlerData, data.Length);
Marshal.WriteIntPtr(dataPtr, schemaHandlerData);
byte[] mimeTypeBytes = mimeType.Select(c => (byte)c).Take(255).ToArray();
Marshal.Copy(mimeTypeBytes, 0, mimeTypePtr, mimeTypeBytes.Length);
Marshal.WriteByte(mimeTypePtr, mimeTypeBytes.Length, 0);
return(data.Length);
}
else
{
return(-1);
}
});
schemaHandler = handler_;
registerAppSchemaHandler_(handler_);
}
static extern void registerAppSchemaHandler_(AppSchemaHandler_ handler_);
