打印、打印预览和页面设置： 调用“打印”、“打印预览”和“页面设置”对话框（IE5.5及以上版本才支持打
印预览，故实现应该检查此命令是否可用）。
ExecWB(OLECMDID_PRINT, OLECMDEXECOPT_DODEFAULT, EmptyParam, EmptyParam);
if QueryStatusWB(OLECMDID_PRINTPREVIEW)=3 then
ExecWB(OLECMDID_PRINTPREVIEW, OLECMDEXECOPT_DODEFAULT, EmptyParam,EmptyParam);
ExecWB(OLECMDID_PAGESETUP, OLECMDEXECOPT_DODEFAULT, EmptyParam, EmptyParam);
剪切、复制、粘贴、全选： 功能无须多说，需要注意的是：剪切和粘贴不仅对编辑框文字，而且对网页上的非编辑框文字同样有效，用得好的话，也许可以做出功能特殊的东东。获得其命令使能状态和执行命令的方法有两种（以复制为例，剪切、粘贴和全选分别将各自的关键字替换即可，分别为CUT,PASTE和SELECTALL）：
A、用TWebBrowser的QueryStatusWB方法。
if(QueryStatusWB(OLECMDID_COPY)=OLECMDF_ENABLED) or
OLECMDF_SUPPORTED) then
ExecWB(OLECMDID_COPY, OLECMDEXECOPT_DODEFAULT, EmptyParam, EmptyParam);
B、用IHTMLDocument2的QueryCommandEnabled方法。
var
Doc: IHTMLDocument2;
begin
Doc :=WebBrowser1.Document as IHTMLDocument2;
if Doc.QueryCommandEnabled('Copy') then
Doc.ExecCommand('Copy',false,EmptyParam);
end;
var
p:procedure(Handle: THandle; Path: PChar); stdcall;
procedure TForm1.OrganizeFavorite(Sender: Tobject);
var
H: HWnd;
begin
H := LoadLibrary(PChar('shdocvw.dll'));
if H <> 0 then
begin
p := GetProcAddress(H, PChar('DoOrganizeFavDlg'));
if Assigned(p) then p(Application.Handle, PChar(FavFolder));
end;
FreeLibrary(h);
end;
procedure TForm1.AddFavorite(Sender: TObject);
var
ShellUIHelper: ISHellUIHelper;
url, title: Olevariant;
begin
Title := Webbrowser1.LocationName;
Url := Webbrowser1.LocationUrl;
if Url <> '' then
begin
ShellUIHelper := CreateComObject(CLSID_SHELLUIHELPER) as IShellUIHelper;
ShellUIHelper.AddFavorite(url, title);
end;
end;
procedure TForm1.SetFocusToDoc;
begin
if WebBrowser1.Document <> nil then
with WebBrowser1.Application as IOleobject do
DoVerb(OLEIVERB_UIACTIVATE, nil, WebBrowser1, 0, Handle, GetClientRect);
end;
除此之外，我还找到一种更简单的方法，这里一并列出：
if WebBrowser1.Document <> nil then
IHTMLWindow2(IHTMLDocument2(WebBrowser1.Document).ParentWindow).focus
刚找到了更简单的方法，也许是最简单的：
if WebBrowser1.Document <> nil then
IHTMLWindow4(WebBrowser1.Document).focus
还有，需要判断文档是否获得焦点这样来做：
if IHTMLWindow4(WebBrowser1.Document).hasfocus then
procedure TForm1.ApplicationEvents1Message(var Msg: TMsg; var Handled: Boolean);
{fixes the malfunction of some keys within webbrowser control}
const
StdKeys = [VK_TAB, VK_RETURN]; { standard keys }
ExtKeys = [VK_DELETE, VK_BACK, VK_LEFT, VK_RIGHT]; { extended keys }
fExtended = $01000000; { extended key flag }
begin
Handled := False;
with Msg do
if ((Message >= WM_KEYFIRST) and (Message <= WM_KEYLAST)) and
((wParam in StdKeys) or
{$IFDEF VER120}(GetKeyState(VK_CONTROL) < 0) or {$ENDIF}
(wParam in ExtKeys) and
((lParam and fExtended) = fExtended)) then
try
if IsChild(Handle, hWnd) then { handles all browser related messages }
begin
with {$IFDEF VER120}Application_{$ELSE}Application{$ENDIF} as
IOleInPlaceActiveObject do
Handled := TranslateAccelerator(Msg) = S_OK;
if not Handled then
begin
Handled := True;
TranslateMessage(Msg);
DispatchMessage(Msg);
end;
end;
except
end;
end; // MessageHandler