Delphi 开发ActiveX控件(非ActiveForm)
Q：为什么不采用ActiveForm工程？通过它可以快速开发带窗体控件，创建过程也非常简单(都不用考虑安全接口问题)，很省事！
A：如果要实现的功能用不上窗口，而一个带窗口的空程序就500多KB，不便于ActiveX的发布，本实现方法可降到100多KB，CAB打包后只有几十KB； 好吧，我承认我有点体积控。
2. 在该工程中新建一个 Automation Object对象
填写类名
3.建一个测试方法(Test)
向导会自动生成相关代码！
注意：
如果需要发布到Internet，还需要实现一个IObjectSafety接口，标记脚本是安全的，运行时才不会被IE阻止。如果想在线安装ActiveX控件还需要数字证书签名后才可以。
代码：
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{
* created by HouSoft
* 2011/11/18
}
unit AXDemo_u;
{$WARN SYMBOL_PLATFORM OFF}
interface
uses
ComObj, ActiveX, AXDemo_TLB, StdVcl,
Windows;
type
TAXDemoCtrl = class(TAutoObject, IAXDemoCtrl, IObjectSafety)
FObjectSafetyFlags: DWORD;
{ 实现IObjectSafety 接口用于将控件标记为安全，否则IE加载时可能会被阻止！}
function GetInterfaceSafetyOptions(const IID: TIID; pdwSupportedOptions,
pdwEnabledOptions: PDWORD): HResult; stdcall;
function SetInterfaceSafetyOptions(const IID: TIID; dwOptionSetMask,
dwEnabledOptions: DWORD): HResult; stdcall;
protected
procedure Test(const Msg: WideString); safecall;
implementation
uses ComServ;
function TAXDemoCtrl.GetInterfaceSafetyOptions(const IID: TIID;
pdwSupportedOptions, pdwEnabledOptions: PDWORD): HResult;
var
Unk : IUnknown;
begin
if (pdwSupportedOptions = nil) or (pdwEnabledOptions = nil) then
Result := E_POINTER;
Result := QueryInterface(IID, Unk);
if Result = S_OK then
pdwSupportedOptions^ := INTERFACESAFE_FOR_UNTRUSTED_CALLER or
INTERFACESAFE_FOR_UNTRUSTED_DATA;
pdwEnabledOptions^ := FObjectSafetyFlags and
(INTERFACESAFE_FOR_UNTRUSTED_CALLER or INTERFACESAFE_FOR_UNTRUSTED_DATA);
pdwSupportedOptions^ := 0;
pdwEnabledOptions^ := 0;
function TAXDemoCtrl.SetInterfaceSafetyOptions(const IID: TIID;
dwOptionSetMask, dwEnabledOptions: DWORD): HResult;
var
Unk : IUnknown;
begin
Result := QueryInterface(IID, Unk);
if Result <> S_OK then
FObjectSafetyFlags := dwEnabledOptions and dwOptionSetMask;
procedure TAXDemoCtrl.Test(const Msg: WideString);
begin
MessageBox(GetActiveWindow,
PChar(string(Msg)),
initialization
TAutoObjectFactory.Create(ComServer, TAXDemoCtrl, Class_AXDemoCtrl,
ciMultiInstance, tmApartment);
部署测试：
<html>
<head>
<title>ActiveX Test Page</title>
</head>
<H1>ActiveX Test Page</H1>
<hr>
<p>
<body>
<object classid="clsid:C7C16439-AFF0-48A4-A22D-4655400FC4BE" codebase="AXDemo.cab#version=1,0,0,0">
</object>
<script>
functiontry'Hello World!'catch'ActiveX测试失败!\r\n'+</script>
来源：oschina
链接：https://my.oschina.net/u/582827/blog/284766