unit UShowHTML;

interface

uses
   ComObj,ActiveX,Windows,Sysutils,Classes,Forms;

procedure LibShowHTMLDialog(ParentHandle: HWND; Moniker: IMoniker;
  DialogArguments: PVariant; Options: PWideChar; ReturnValue: PVariant);


type
  TShowHTMLDialogLibFunc = function (hwndParent: HWND; Moniker: IMoniker;
    pvarArgIn: PVariant; pchOptions: PWideChar; pvarArgOut: PVariant):
    HResult; stdcall;
  TCreateURLMonikerLibFunc = function (MkCtx: IMoniker; szURL: LPCWSTR; out mk: IMoniker):
    HResult; stdcall;

implementation

procedure LibShowHTMLDialog(ParentHandle: HWND; Moniker: IMoniker;
  DialogArguments: PVariant; Options: PWideChar; ReturnValue: PVariant);
const
  LibName = 'MSHTML.DLL';
  FuncName = 'ShowHTMLDialog';
var
  LibInstance: THandle;
  LibFunc: TShowHTMLDialogLibFunc;
  Res: HResult;
begin
  LibInstance := LoadLibrary(LibName);
  if LibInstance = 0 then RaiseLastWin32Error;
  try
    LibFunc := TShowHTMLDialogLibFunc(GetProcAddress(LibInstance, FuncName));
    if not Assigned(LibFunc) then
      raise Exception.Create('MSHTML.DLL does not export ShowHTMLDialog');
    Res := LibFunc(ParentHandle, Moniker, DialogArguments, Options, ReturnValue);
    OleCheck(Res);
  finally
    FreeLibrary(LibInstance);
  end;
end;



end.