不是这样的.看Delphi的帮助:
procedure HasFormat(Format: Word): Boolean;
Description
The HasFormat method determines if the Clipboard object contains a particular format. If HasFormat is True, the format is present;
if False, the format is absent. The Clipboard object keeps a list of available formats in the Formats array property.
Some of the possible values of the Format parameter follow. There are many more Clipboard formats provided by Windows, and custom formats can be registered. All are supported by HasFormat..
Value Meaning
CF_TEXT Text with each line ending with a CR-LF combination. A null character identifies the end of the text.
CF_BITMAP A Windows bitmap graphic.
CF_METAFILE A Windows metafile graphic.
CF_PICTURE An object of type TPicture.
CF_OBJECT Any persistent object.