首先, 用 JavaScript 語言編寫組件, 以下是個(gè)例子:
<?xml version="1.0" encoding="UTF-8"?>
<?component error="true" debug="true"?>
<component id="XrhTest.LowerToUpper">
<registration
description = "UpperCase and lowCase convertion"
progid="XrhTest.LowerToUpper"
version="1.0"
classid="{9B88510F-9D5B-4dcd-9068-8AB0B4F7999C}" remotable="true">
</registration>
<public>
<!-- define method -->
<method name="toLower">
<parameter name="str"/>
</method>
<method name="toUpper">
<parameter name="str"/>
</method>
</public>
<script language="JavaScript">
<![CDATA[
function toLower(str)
{
var result=str.toLowerCase();
return result;
}
function toUpper(str)
{
var result=str.toUpperCase();
return result;
}
]]>
</script>
</component>
<?component error="true" debug="true"?>
<component id="XrhTest.LowerToUpper">
<registration
description = "UpperCase and lowCase convertion"
progid="XrhTest.LowerToUpper"
version="1.0"
classid="{9B88510F-9D5B-4dcd-9068-8AB0B4F7999C}" remotable="true">
</registration>
<public>
<!-- define method -->
<method name="toLower">
<parameter name="str"/>
</method>
<method name="toUpper">
<parameter name="str"/>
</method>
</public>
<script language="JavaScript">
<![CDATA[
function toLower(str)
{
var result=str.toLowerCase();
return result;
}
function toUpper(str)
{
var result=str.toUpperCase();
return result;
}
]]>
</script>
</component>
將這個(gè)組件保存為 lower2upper.wsc 文件.
然后, 注冊(cè)這個(gè)組件, 方法是, 在這個(gè) wsc 文件上右擊鼠標(biāo), 然后選 "注冊(cè)" 菜單項(xiàng), 完成注冊(cè), 點(diǎn)擊 OK 按鈕完成操作. 如下圖
注冊(cè)完成后, 在注冊(cè)表內(nèi)有以下條目
[HKEY_CLASSES_ROOT\CLSID\{9B88510F-9D5B-4DCD-9068-8AB0B4F7999C}]
@="UpperCase and lowCase convertion"
"AppID"="{9B88510F-9D5B-4DCD-9068-8AB0B4F7999C}"
[HKEY_CLASSES_ROOT\CLSID\{9B88510F-9D5B-4DCD-9068-8AB0B4F7999C}\InprocServer32]
@="C:\\WINDOWS\\System32\\scrobj.dll"
"ThreadingModel"="Apartment"
[HKEY_CLASSES_ROOT\CLSID\{9B88510F-9D5B-4DCD-9068-8AB0B4F7999C}\ProgID]
@="XrhTest.LowerToUpper.1.0"
[HKEY_CLASSES_ROOT\CLSID\{9B88510F-9D5B-4DCD-9068-8AB0B4F7999C}\ScriptletURL]
@="file:///D:/lower2upper.wsc "
[HKEY_CLASSES_ROOT\CLSID\{9B88510F-9D5B-4DCD-9068-8AB0B4F7999C}\VersionIndependentProgID]
@="XrhTest.LowerToUpper"最后, 我們來編寫 C++ 客戶端, 隨便創(chuàng)建一個(gè) C++ 文件, 然后用 VC6 編譯, 運(yùn)行, 查看結(jié)果. 示例代碼如下:
#include <atlbase.h>
extern CComModule _Module;
#include <atlcom.h>
void main()
{
CoInitialize(NULL);
{
HRESULT hr = E_FAIL;
CComQIPtr<IDispatch> spTmp;
hr = spTmp.CoCreateInstance(L"XrhTest.LowerToUpper");
if (SUCCEEDED(hr))
{
CComDispatchDriver spDisp(spTmp);
CComVariant varParam(L"The quick brown fox jumps over the lazy dog");
CComVariant varResult;
hr = spDisp.Invoke1(L"toUpper", &varParam, &varResult);
if (SUCCEEDED(hr))
{
MessageBoxW(NULL, (LPCWSTR) varResult.bstrVal, L"MB_OK", MB_OK);
}
}
}
CoUninitialize();
}
CComModule _Module;
如果不出意外, 運(yùn)行結(jié)果將彈出一個(gè)全是大寫文本的對(duì)話框. 如下圖:extern CComModule _Module;
#include <atlcom.h>
void main()
{
CoInitialize(NULL);
{
HRESULT hr = E_FAIL;
CComQIPtr<IDispatch> spTmp;
hr = spTmp.CoCreateInstance(L"XrhTest.LowerToUpper");
if (SUCCEEDED(hr))
{
CComDispatchDriver spDisp(spTmp);
CComVariant varParam(L"The quick brown fox jumps over the lazy dog");
CComVariant varResult;
hr = spDisp.Invoke1(L"toUpper", &varParam, &varResult);
if (SUCCEEDED(hr))
{
MessageBoxW(NULL, (LPCWSTR) varResult.bstrVal, L"MB_OK", MB_OK);
}
}
}
CoUninitialize();
}
CComModule _Module;
以上所講的組件注冊(cè)將會(huì)在注冊(cè)表內(nèi)留下痕跡, 不夠綠色. 如果組件不注冊(cè), 或者腳本內(nèi)沒有 <registration> 元素, 可以使用以下介紹的方法來使用 wsc 組件.
#include <atlbase.h>
extern CComModule _Module;
#include <atlcom.h>
HRESULT CreateScriptComponent(LPCTSTR lpszScriptletURL, OUT IDispatch ** ppDispatch)

{
HRESULT hr = E_FAIL;
do
{
if (NULL == ppDispatch)
{
break;
}
CComPtr<IBindCtx> pbc;
CComPtr<IMoniker> pMoniker;
hr = CreateBindCtx(0, &pbc);
if (FAILED(hr))
{
break;
}
CComBSTR strPath(L"script:");
strPath.Append(lpszScriptletURL);
ULONG lEaten = 0;
hr = MkParseDisplayName(pbc, strPath, &lEaten, &pMoniker);
if (FAILED(hr))
{
break;
}
hr = BindMoniker(pMoniker, 0, __uuidof(IDispatch), (void**)ppDispatch);
if (FAILED(hr))
{
break;
}
} while(false);
return hr;
}
int _tmain(int argc, _TCHAR* argv[])

{
HRESULT hr = E_FAIL;
CoInitialize(NULL);
do
{
CComPtr<IDispatch> pScript;
hr = CreateScriptComponent(
_T("file:///d:/lower2upper.wsc"), // _T("d:\\lower2upper.wsc")
&pScript);
if (FAILED(hr))
{
break;
}
CComDispatchDriver spDisp(pScript);
CComVariant varParam(L"The quick brown fox jumps over the lazy dog");
CComVariant varResult;
HRESULT hr = spDisp.Invoke1(L"toUpper", &varParam, &varResult);
if (SUCCEEDED(hr))
{
MessageBoxW(NULL, (LPCWSTR) varResult.bstrVal, L"MB_OK", MB_OK);
}
}
while (false);
CoUninitialize();
return 0;
}
CComModule _Module; 參考文獻(xiàn):
http://blog.csdn.net/broadview2006/archive/2009/03/19/4004361.aspx
http://www.vckbase.com/document/viewdoc/?id=1518
延伸閱讀:
<<怎樣在 Windows 環(huán)境下調(diào)試 JScript 腳本>>
<<幾行代碼讓你的程序加入vbscipt腳本擴(kuò)展功能>>
http://support.microsoft.com/kb/221992/en-us
http://support.microsoft.com/kb/223139/en-us
http://support.microsoft.com/kb/196135/en-us
http://support.microsoft.com/kb/168214/
http://support.microsoft.com/kb/183698/
PS, 一個(gè)稍微有點(diǎn)用的例子:
源代碼: http://m.shnenglu.com/Files/free2000fly/jsTest.zip

