begin
png := TPortableNetworkGraphic.Create;
intf := TLazIntfImage.Create(0, 0);
try
if not AssignToLazIntfImage(intf) then
raise EglBitmap.Create('unable to create LazIntfImage from glBitmap');
begin
png := TPortableNetworkGraphic.Create;
intf := TLazIntfImage.Create(0, 0);
try
if not AssignToLazIntfImage(intf) then
raise EglBitmap.Create('unable to create LazIntfImage from glBitmap');