myvtm/DevAdapter/include/BranchDeviceHelper.h

#ifndef __BRANCH_DEVICE_HLEPER_H
#define __BRANCH_DEVICE_HLEPER_H
#pragma once
const int MAX_PATH_SIZE = 256;

#include <strsafe.h>
#include <Shlobj.h>

#ifdef __cplusplus
extern "C" {
#endif

	int GetCurrentRunPath(char *pPath)
	{
		char *pBuf = new char[MAX_PATH_SIZE];
		if (pBuf == NULL)
			return -1;
		ZeroMemory(pBuf,MAX_PATH_SIZE);
		GetModuleFileName(NULL,pBuf,MAX_PATH_SIZE);
		int len = strnlen_s(pBuf,MAX_PATH_SIZE);
		if (len <= 0)
		{
			delete []pBuf;
			return -2;
		}
		char *pch;
		pch = strstr (pBuf,"bin");
		if (pch == NULL)
			return -3;
		int lenDel = strnlen_s(pch,MAX_PATH_SIZE);
		if (len <= 0)
		{
			delete []pBuf;
			return -3;
		}
		strncpy_s(pPath,MAX_PATH_SIZE,pBuf,len-lenDel);
		delete []pBuf;

		return strnlen_s(pPath,MAX_PATH_SIZE);
	}

	// >0 means suc and set the path size
	//	  pPath store directory path like "C:\Users\{UserName}\AppData\LocalLow"
	// <0 means failed !!
	int GetWriteAvailableDirPath(char *pPath)
	{
		char *pBuf = new char[MAX_PATH_SIZE];
		if (pBuf == NULL)
			return -1;
		ZeroMemory(pBuf,MAX_PATH_SIZE);
		PWSTR pszPath = NULL;
		if(SHGetKnownFolderPath(FOLDERID_LocalAppDataLow, 0, NULL, &pszPath) != S_OK)
		{
			delete[] pBuf;
			return -2;
		}
		WideCharToMultiByte(CP_ACP, 0, pszPath, -1, pBuf, MAX_PATH_SIZE, NULL, NULL);
		CoTaskMemFree((LPVOID)pszPath);
		int len = strnlen_s(pBuf, MAX_PATH_SIZE);
		strncpy_s(pPath, MAX_PATH_SIZE, pBuf, len);
		delete []pBuf;
		return strnlen_s(pPath, MAX_PATH_SIZE);
	}

#ifdef __cplusplus
}
#endif
#endif //__BRANCH_DEVICE_HLEPER_H