之前使用的ole的方法，doctotxt，在通过另存为的方式处理word的时候，保存的格式是ANSI的，就会导致韩文等字符变成?,丢失数据。
上网查询（用的百度），绞尽脑汁，黔驴技穷，山穷水尽，一筹莫展，崩溃了
上午的时候，实在没有办法了，考虑用c#去实现，然后在c里调用c#的程序(DLL)
今天下午继续看文档 http://msdn.microsoft.com/en-us/library/Aa155776#offaut_creautclicplus
有点灵感，对msword.cpp进行了修改
VARIANT Selection::GetText(char* result)
{
//CString result;
// LPSTR
// wchar_t tmp[10240] = {0};
// LPWSTR result1 = tmp;
VARIANT tmp;
InvokeHelper(0x0, DISPATCH_PROPERTYGET, VT_VARIANT, (void*)&tmp, NULL);
return tmp;
}
调试了下，发现可以显示韩文了，终于有了突破，这种方法可以解决问题了，这时是3,4点钟
继续看文档，搜wdFormatUnicodeText
接着，想到了用Google去搜，这个时候，有了重大突破，
还是Google好啊，一招制敌，泪流满面，相见恨晚。
唉，竟然忘记了：搜技术问题一定要用Google。教训啊，走了这么多的弯路。
Google上面有老外的提问和解答，找到了点线索
http://*.com/questions/11736327/save-every-page-of-a-word-document-into-a-txt-file-utf-8-using-vba
nDoc.SaveAs Encoding:=msoEncodingUTF8, FileFormat:=wdFormatUnicodeText,nDoc.SaveAs Encoding:=msoEncodingUTF8, FileFormat:=wdFormatUnicodeText,
知道了要用Encoding这个参数
看到了saveas的参数
public virtual void SaveAs ([OptionalAttribute] ref Object FileName,[OptionalAttribute] ref Object FileFormat,[OptionalAttribute] ref Object LockComments,[OptionalAttribute] ref Object Password,[OptionalAttribute] ref Object AddToRecentFiles,[OptionalAttribute] ref Object WritePassword,[OptionalAttribute] ref Object ReadOnlyRecommended,[OptionalAttribute] ref Object EmbedTrueTypeFonts,[OptionalAttribute] ref Object SaveNativePictureFormat,[OptionalAttribute] ref Object SaveFormsData,[OptionalAttribute] ref Object SaveAsAOCELetter,[OptionalAttribute] ref Object Encoding,[OptionalAttribute] ref Object InsertLineBreaks,[OptionalAttribute] ref Object AllowSubstitutions,[OptionalAttribute] ref Object LineEnding,[OptionalAttribute] ref Object AddBiDiMarks)
知道了再程序中需要再添加一个参数，看文档的时候知道了那边的参数数值要按反过来的顺序写，
再搜Const msoEncodingUTF8 = 65001 ，知道了这个值是65001
然后修改程序
//modified by Sunday 2013-4-14
VARIANT vOpt;
vOpt.vt = VT_ERROR;
vOpt.scode = DISP_E_PARAMNOTFOUND;
//Prepare arguments for save as .txt
VARIANT vArgsSaveAs[12];
DISPPARAMS dpSaveAs;
dpSaveAs.cArgs = 12;
dpSaveAs.cNamedArgs = 0;
dpSaveAs.rgvarg = vArgsSaveAs;
vArgsSaveAs[11].vt = VT_BSTR;
vArgsSaveAs[11].bstrVal = bstrSaveFile; //Filename
vArgsSaveAs[10].vt = VT_I4;//VT_I4;
vArgsSaveAs[10].lVal = 7;//wdFormatUnicodeText;// 7;//2; //FileFormat(wdFormatText = 2)
vArgsSaveAs[9] = vFalse; //LockComments
vArgsSaveAs[8].vt = VT_BSTR;
vArgsSaveAs[8].bstrVal = m_bstrEmptyString; //Password
vArgsSaveAs[7].vt = VT_BOOL;
vArgsSaveAs[7].boolVal = TRUE; //AddToRecentFiles
vArgsSaveAs[6].vt = VT_BSTR;
vArgsSaveAs[6].bstrVal = m_bstrEmptyString; //WritePassword
vArgsSaveAs[5] = vFalse; //ReadOnlyRecommended
vArgsSaveAs[4] = vFalse; //EmbedTrueTypeFonts
vArgsSaveAs[3] = vFalse; //SaveNativePictureFormat
vArgsSaveAs[2] = vFalse; //SaveFormsData
vArgsSaveAs[1] = vFalse; //SaveAsOCELetter
vArgsSaveAs[0].vt = VT_I4;
vArgsSaveAs[0].lVal = 65001;//UTF8
调试，激动人心的时刻
打开记事本，内容为
Today is 2012-11-12 왜 한국 사람测1试 A B C ffffffffffffffff顶顶顶顶顶顶顶顶kkkkkkkkkkk ffffffffffffffff顶顶顶顶顶顶顶顶kkkkkkkkkkk ffffff顶顶顶顶顶顶顶顶顶顶顶顶顶顶fffffffffffffffff gggggggggg4-13
终于解决了，
这是人类的一小步，是我的一大步
这时是5点多，打开窗户，伸出头去，吹吹风，春风，看看外面的世界，
这2天都没有怎么出门，极度烦闷，
Ag 5.18 Au 295 ，事已至此，不能惊慌
完整代码
void DocToTxt(BSTR bstrOpenFile, BSTR bstrSaveFile)
{
// ******************* Declare Some Variables ********************
// Variables that will be used and re-used in our calls
DISPPARAMS m_dpNoArgs = {NULL, NULL, 0, 0};
VARIANT m_vResult;
OLECHAR FAR* m_szFunction;
// IDispatch pointers for Word's objects
IDispatch* m_pDispDocs; //Documents collection
IDispatch* m_pDispActiveDoc; //ActiveDocument object
// DISPID's
DISPID m_dispid_Docs; //Documents property of Application object
DISPID m_dispid_ActiveDoc; //ActiveDocument property of Application
DISPID m_dispid_SaveAs; //SaveAs method of the Document object
DISPID m_dispid_Quit; //Quit method of the Application object
DISPID m_dispid_Open; //Open method of the Application object
BSTR m_bstrEmptyString ;
// ******************** Start Automation ***********************
//Initialize the COM libraries
::CoInitialize(NULL);
// Create an instance of the Word application and obtain the pointer
// to the application's IDispatch interface.
CLSID m_clsid;
CLSIDFromProgID(L"Word.Application.12", &m_clsid);
IUnknown* m_pUnk;
HRESULT m_hr = ::CoCreateInstance( m_clsid, NULL, CLSCTX_SERVER,
IID_IUnknown, (void**) &m_pUnk);
IDispatch* m_pDispApp;
m_hr = m_pUnk->QueryInterface( IID_IDispatch, (void**)&m_pDispApp);
// Get IDispatch* for the Documents collection object
m_szFunction = OLESTR("Documents");
m_hr = m_pDispApp->GetIDsOfNames (IID_NULL, &m_szFunction, 1,
LOCALE_USER_DEFAULT, &m_dispid_Docs);
m_hr = m_pDispApp->Invoke (m_dispid_Docs, IID_NULL, LOCALE_USER_DEFAULT,
DISPATCH_PROPERTYGET, &m_dpNoArgs, &m_vResult,
NULL, NULL);
m_pDispDocs = m_vResult.pdispVal;
// Query id of method open
m_szFunction = OLESTR("Open");
m_hr = m_pDispDocs->GetIDsOfNames(IID_NULL, &m_szFunction,1,
LOCALE_USER_DEFAULT, &m_dispid_Open);
// Prepare parameters for open method
//modified by Sunday 2013-4-14
VARIANT vArgsOpen[6];
DISPPARAMS dpOpen;
dpOpen.cArgs = 6;
dpOpen.cNamedArgs = 0;
dpOpen.rgvarg = vArgsOpen;
VARIANT vFalse, vTrue;
vFalse.vt = VT_BOOL;
vFalse.boolVal = FALSE;
vTrue.vt = VT_BOOL;
vTrue.boolVal = TRUE;
m_bstrEmptyString = ::SysAllocString(OLESTR("")) ;
vArgsOpen[5].vt = VT_BSTR;
vArgsOpen[5].bstrVal = bstrOpenFile;
vArgsOpen[4] = vFalse;
vArgsOpen[3] = vTrue;
vArgsOpen[2] = vFalse;
vArgsOpen[1].vt = VT_BSTR;
vArgsOpen[1].bstrVal = m_bstrEmptyString;
vArgsOpen[0].vt = VT_BSTR;
vArgsOpen[0].bstrVal = m_bstrEmptyString;
//Execute open method
m_hr=m_pDispDocs->Invoke(m_dispid_Open,IID_NULL,LOCALE_USER_DEFAULT,
DISPATCH_METHOD,&dpOpen,NULL,NULL,NULL);
//Query activedocument interface
m_szFunction = OLESTR("ActiveDocument");
m_hr = m_pDispApp->GetIDsOfNames(IID_NULL, &m_szFunction, 1,
LOCALE_USER_DEFAULT,&m_dispid_ActiveDoc);
m_hr = m_pDispApp->Invoke(m_dispid_ActiveDoc,IID_NULL,
LOCALE_USER_DEFAULT, DISPATCH_PROPERTYGET,
&m_dpNoArgs,&m_vResult,NULL,NULL);
m_pDispActiveDoc = m_vResult.pdispVal;
//4-14
//modified by Sunday 2013-4-14
VARIANT vOpt;
vOpt.vt = VT_ERROR;
vOpt.scode = DISP_E_PARAMNOTFOUND;
//Prepare arguments for save as .txt
VARIANT vArgsSaveAs[12];
DISPPARAMS dpSaveAs;
dpSaveAs.cArgs = 12;
dpSaveAs.cNamedArgs = 0;
dpSaveAs.rgvarg = vArgsSaveAs;
vArgsSaveAs[11].vt = VT_BSTR;
vArgsSaveAs[11].bstrVal = bstrSaveFile; //Filename
vArgsSaveAs[10].vt = VT_I4;//VT_I4;
vArgsSaveAs[10].lVal = 7;//wdFormatUnicodeText;// 7;//2; //FileFormat(wdFormatText = 2)
vArgsSaveAs[9] = vFalse; //LockComments
vArgsSaveAs[8].vt = VT_BSTR;
vArgsSaveAs[8].bstrVal = m_bstrEmptyString; //Password
vArgsSaveAs[7].vt = VT_BOOL;
vArgsSaveAs[7].boolVal = TRUE; //AddToRecentFiles
vArgsSaveAs[6].vt = VT_BSTR;
vArgsSaveAs[6].bstrVal = m_bstrEmptyString; //WritePassword
vArgsSaveAs[5] = vFalse; //ReadOnlyRecommended
vArgsSaveAs[4] = vFalse; //EmbedTrueTypeFonts
vArgsSaveAs[3] = vFalse; //SaveNativePictureFormat
vArgsSaveAs[2] = vFalse; //SaveFormsData
vArgsSaveAs[1] = vFalse; //SaveAsOCELetter
vArgsSaveAs[0].vt = VT_I4;
vArgsSaveAs[0].lVal = 65001;//UTF8
/*
//Prepare arguments for save as .txt
VARIANT vArgsSaveAs[11];
DISPPARAMS dpSaveAs;
dpSaveAs.cArgs = 11;
dpSaveAs.cNamedArgs = 0;
dpSaveAs.rgvarg = vArgsSaveAs;
vArgsSaveAs[10].vt = VT_BSTR;
vArgsSaveAs[10].bstrVal = bstrSaveFile; //Filename
vArgsSaveAs[9].vt = VT_I4;//VT_I4;
vArgsSaveAs[9].lVal = 7;//wdFormatUnicodeText;// 7;//2; //FileFormat(wdFormatText = 2)
vArgsSaveAs[8] = vFalse; //LockComments
vArgsSaveAs[7].vt = VT_BSTR;
vArgsSaveAs[7].bstrVal = m_bstrEmptyString; //Password
vArgsSaveAs[6].vt = VT_BOOL;
vArgsSaveAs[6].boolVal = TRUE; //AddToRecentFiles
vArgsSaveAs[5].vt = VT_BSTR;
vArgsSaveAs[5].bstrVal = m_bstrEmptyString; //WritePassword
vArgsSaveAs[4] = vFalse; //ReadOnlyRecommended
vArgsSaveAs[3] = vFalse; //EmbedTrueTypeFonts
vArgsSaveAs[2] = vFalse; //SaveNativePictureFormat
vArgsSaveAs[1] = vFalse; //SaveFormsData
vArgsSaveAs[0] = vFalse; //SaveAsOCELetter
*/
// Query and execute SaveAs method
m_szFunction = OLESTR("SaveAs");
m_hr = m_pDispActiveDoc->GetIDsOfNames(IID_NULL,&m_szFunction,1,
LOCALE_USER_DEFAULT,&m_dispid_SaveAs);
m_hr = m_pDispActiveDoc->Invoke(m_dispid_SaveAs, IID_NULL,
LOCALE_SYSTEM_DEFAULT,DISPATCH_METHOD,//LOCALE_USER_DEFAULT
&dpSaveAs,NULL,NULL,NULL);
// Invoke the Quit method
m_szFunction = OLESTR("Quit");
m_hr = m_pDispApp->GetIDsOfNames(IID_NULL, &m_szFunction, 1,
LOCALE_USER_DEFAULT, &m_dispid_Quit);
m_hr = m_pDispApp->Invoke(m_dispid_Quit, IID_NULL, LOCALE_USER_DEFAULT,
DISPATCH_METHOD, &m_dpNoArgs, NULL, NULL, NULL);
//
cout << m_bstrEmptyString << endl;
cout << (char*)m_bstrEmptyString << endl;
//Clean-up
::SysFreeString(bstrOpenFile) ;
::SysFreeString(bstrSaveFile) ;
::SysFreeString(m_bstrEmptyString) ;
m_pDispActiveDoc->Release();
m_pDispDocs->Release();
m_pDispApp->Release();
m_pUnk->Release();
::CoUninitialize();
}
int main(int argc, char* argv[])
{
DocToTxt(::SysAllocString(OLESTR("D:\\code\\data\\c2.docx")), ::SysAllocString(OLESTR("D:\\to.txt")));
}