如何修改windows文件的摘要信息

来源：互联网发布：windows 2012 ad 辅域编辑：程序博客网时间：2024/05/16 07:40
代码里只修改了备注，其他字段相同原理
#include <stdio.h>#include <windows.h>#include <ole2.h>#pragma comment( lib, "ole32.lib" )int GetFileComments(wchar_t *filename, wchar_t *buf, size_t len){    IPropertySetStorage *pPropSetStg = NULL;    IPropertyStorage *pPropStg = NULL;    PROPSPEC propspec;     PROPVARIANT propWrite;     PROPVARIANT propRead;    HRESULT hr;size_t l;    // Open a file and a property set within it.    hr = StgOpenStorageEx(filename,                    STGM_SHARE_EXCLUSIVE | STGM_READ,                    STGFMT_ANY,                    0,                    NULL,                    NULL,                    IID_IPropertySetStorage,                    reinterpret_cast<void**>(&pPropSetStg) );    if( FAILED(hr) )         return 0;     hr = pPropSetStg->Open( FMTID_SummaryInformation,                             STGM_READ | STGM_SHARE_EXCLUSIVE,                            &pPropStg );    if( FAILED(hr) )         return 0;    propspec.ulKind = PRSPEC_PROPID;    propspec.propid  = PIDSI_COMMENTS;    hr = pPropStg->ReadMultiple( 1, &propspec, &propRead );    if( FAILED(hr) ) {pPropSetStg->Release();pPropSetStg = NULL;        return 0;}l = wcslen(propRead.pwszVal)+1;if(0 == len){pPropSetStg->Release();pPropSetStg = NULL;pPropStg->Release(); pPropStg = NULL;return l;}wcscpy(buf,propRead.pwszVal);pPropSetStg->Release();pPropSetStg = NULL;    pPropStg->Release();     pPropStg = NULL;return l;}int SetFileComments(wchar_t *filename, wchar_t *buf){    IPropertySetStorage *pPropSetStg = NULL;    IPropertyStorage *pPropStg = NULL;    PROPSPEC propspec;     PROPVARIANT propWrite;     PROPVARIANT propRead;    HRESULT hr = S_OK;    // Open a file and a property set within it.    hr = StgOpenStorageEx(filename,                    STGM_SHARE_EXCLUSIVE | STGM_READWRITE | STGM_DIRECT,                    STGFMT_ANY,                    0,                    NULL,                    NULL,                    IID_IPropertySetStorage,                    reinterpret_cast<void**>(&pPropSetStg) );    if( FAILED(hr) )         return 0;    hr = pPropSetStg->Create( FMTID_SummaryInformation, NULL, PROPSETFLAG_DEFAULT,STGM_READWRITE | STGM_SHARE_EXCLUSIVE,&pPropStg );if( FAILED(hr) && STG_E_FILEALREADYEXISTS == hr){hr = pPropSetStg->Open( FMTID_SummaryInformation, STGM_READWRITE | STGM_SHARE_EXCLUSIVE,&pPropStg );if(FAILED(hr))return 0;}    propspec.ulKind = PRSPEC_PROPID;    propspec.propid  = PIDSI_COMMENTS;    //specify the value of property    propWrite.vt = VT_LPWSTR;    propWrite.pwszVal = buf;    hr = pPropStg->WriteMultiple( 1, &propspec, &propWrite,PID_FIRST_USABLE);    if( FAILED(hr) ) {pPropSetStg->Release();pPropSetStg = NULL;        return 0;}pPropSetStg->Release();pPropSetStg = NULL;    pPropStg->Release();     pPropStg = NULL;return 1;}