右键菜单增加JSON解析功能

git clone https://github.com/Microsoft/vcpkg.git
cd vcpkg
./bootstrap-vcpkg.sh
./vcpkg integrate install
./vcpkg install jsoncpp

#include <iostream>
#include "json/json.h"
#include <string>
#include <windows.h>


using namespace std;


#if defined(GNUC)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored “-Wdeprecated-declarations”
#elif defined(_MSC_VER)
#pragma warning(disable : 4996)
#endif


#pragma comment(linker,"/subsystem:\"windows\" entry:\"mainCRTStartup\"")


int main()
{
    HWND hWnd = NULL;
    OpenClipboard(hWnd);
    char* jsonString = nullptr;
    if (IsClipboardFormatAvailable(CF_TEXT))
    {
        HANDLE h = GetClipboardData(CF_TEXT);
        jsonString = (char*)GlobalLock(h);
        GlobalUnlock(h);
    }
    CloseClipboard(); 
    if (jsonString == nullptr || jsonString == NULL) {
        return 0;
    }
    Json::Reader reader;
    Json::Value  rootObj ;
    reader.parse(jsonString, rootObj);
    if (rootObj.empty()) {
        return 0;
    }
    bool enter = false;
    int enter_num = 0;
    while (*jsonString)
    {
        if (*jsonString == '\n') {
            enter_num++;
        }
        if (enter_num > 2) {
            enter = true;
        }
        jsonString++;
    }
    string echoJson;
    if (enter) { 
        Json::FastWriter fastWriter;
        echoJson = fastWriter.write(rootObj); 
    }else{
        Json::StyledWriter styleWriter;
        echoJson = styleWriter.write(rootObj);
    }
    if (rootObj.empty() || echoJson.empty() || echoJson.size() == 0) {
        return 0;
    }
    hWnd = NULL;
    OpenClipboard(hWnd);//打开剪切板
    EmptyClipboard();//清空剪切板
    HANDLE hHandle = GlobalAlloc(GMEM_FIXED, echoJson.size()+1);
    char* pData = (char*)GlobalLock(hHandle);
    strcpy(pData, echoJson.c_str()); 
    SetClipboardData(CF_TEXT, hHandle);
    GlobalUnlock(hHandle);
    CloseClipboard();
    if (enter) {
        MessageBoxA(NULL, "剪贴板数据已转换为【单】行", "提示", 64);
    }
    else {
        MessageBoxA(NULL, "剪贴板数据已转换为【多】行", "提示", 64);
    }
    return 0;
}