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delphi 验证GUID的函数
uses System.Win.ComObj,ActiveX;
function CheckComObj(progID: string): Boolean;
var
myGuid: TGUID;
begin
Result := False;
try
OleCheck(CLSIDFromProgID(Pchar(progID), myGuid));
if IsEqualGUID(myGuid, GUID_NULL) = False then
Result := True;
except
Result := False;
end;
end;