71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
/*
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This file includes the unzip function which is used to unzip files. The function uses the IShellDispatch interface to interact with the Windows Shell and extract the contents of a ZIP file to a specified destination folder. The function takes two parameters: the source ZIP file path and the destination folder path where the contents will be extracted.
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Functions:
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- unzip(): This function extracts the contents of a ZIP file to a specified destination folder using the IShellDispatch interface. It takes two parameters: the source ZIP file path and the destination folder path.
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Code copied from:
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- https://vcpptips.wordpress.com/2013/10/28/how-to-zipunzip-files/
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*/
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#include "zip.h"
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#include <windows.h>
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#include <string.h>
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#include <iostream>
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#include <Shldisp.h>
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#include <codecvt>
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void unzip(const std::string& source, const std::string& dest)
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{
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HRESULT hResult = S_FALSE;
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IShellDispatch* pIShellDispatch = NULL;
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Folder* pToFolder = NULL;
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VARIANT variantDir, variantFile, variantOpt;
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CoInitialize(NULL);
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hResult = CoCreateInstance(CLSID_Shell, NULL, CLSCTX_INPROC_SERVER,
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IID_IShellDispatch, (void**)&pIShellDispatch);
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if (SUCCEEDED(hResult))
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{
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VariantInit(&variantDir);
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variantDir.vt = VT_BSTR;
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variantDir.bstrVal = SysAllocStringLen(NULL, MultiByteToWideChar(CP_UTF8, 0, dest.c_str(), -1, NULL, 0));
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MultiByteToWideChar(CP_UTF8, 0, dest.c_str(), -1, variantDir.bstrVal, SysStringLen(variantDir.bstrVal));
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hResult = pIShellDispatch->NameSpace(variantDir, &pToFolder);
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if (SUCCEEDED(hResult))
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{
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Folder* pFromFolder = NULL;
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VariantInit(&variantFile);
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variantFile.vt = VT_BSTR;
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variantFile.bstrVal = SysAllocStringLen(NULL, MultiByteToWideChar(CP_UTF8, 0, source.c_str(), -1, NULL, 0));
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MultiByteToWideChar(CP_UTF8, 0, source.c_str(), -1, variantFile.bstrVal, SysStringLen(variantFile.bstrVal));
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pIShellDispatch->NameSpace(variantFile, &pFromFolder);
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FolderItems* fi = NULL;
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pFromFolder->Items(&fi);
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VariantInit(&variantOpt);
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variantOpt.vt = VT_I4;
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variantOpt.lVal = FOF_NO_UI;
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VARIANT newV;
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VariantInit(&newV);
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newV.vt = VT_DISPATCH;
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newV.pdispVal = fi;
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hResult = pToFolder->CopyHere(newV, variantOpt);
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Sleep(1000);
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pFromFolder->Release();
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pToFolder->Release();
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}
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pIShellDispatch->Release();
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}
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CoUninitialize();
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SysFreeString(variantDir.bstrVal);
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SysFreeString(variantFile.bstrVal);
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} |