怎么判断一image中图片的格式？(50分)

我用了第三方控件ImageEn1,怎么判断它的格式，以及ImageEn中是否有图片?

谢谢

有人熟悉这个控件的吗?

谢谢大家帮助!

还是没人啊 ..

Applies to
TImageEnView component

Declaration
property IsEmpty:boolean;

Description
IsEmpty returns true if the image is empty.



ImageEnIO

Declaration
type TIOFileType=integer;

types for TIOFileType:
ioUnknown = 0;
ioTIFF = 1;
ioGIF = 2;
ioJPEG = 3;
ioPCX = 4;
ioBMP = 5;
ioICO = 6;
ioCUR = 7;
ioPNG = 8;
ioWMF = 9;
ioEMF = 10;
ioTGA = 11;
ioPXM = 12;
ioJP2 = 13;
ioJ2K = 14;
ioUSER = 10000;

接受答案了.