Metafile::EmfToWmfBits的使用

其中涉及到string转换LPCWSTR以及模块绝对路径的调用

#include <iostream>
#include <stdio.h>
#include <WINDOWS.H>
#include <shellapi.h>
#include <gdiplus.h>
#include <Shlwapi.h>
#include <string>

#pragma comment (lib,"Shlwapi.lib")
#pragma comment(lib,"gdiplus.lib")
#pragma comment(lib, "shell32.lib")

using namespace Gdiplus;
using std::string;

LPWSTR ConvertToLPWSTR(const std::string& s)
{
    LPWSTR ws = new wchar_t[s.size() + 1]; // +1 for zero at the end
    copy(s.begin(), s.end(), ws);
    ws[s.size()] = 0; // zero at the end
    return ws;
}

int main(int argc, char **argv)
{
    UINT size1 = 0;
    WCHAR path[MAX_PATH];
    string name;

    GdiplusStartupInput gdiplusStartupInput;
    ULONG_PTR gdiplusToken;
    GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);

    std::cout << "Please input a file name" << std::endl;
    std::cin >> name;
    LPCWSTR name_ = LPCWSTR(ConvertToLPWSTR(name));

    GetModuleFileNameW(NULL, path, MAX_PATH);
    PathRemoveFileSpecW(path);
    PathAppendW(path, name_);


    Metafile myMetafile(path);
    Status S_ch = myMetafile.GetLastStatus();
    
    HENHMETAFILE hEmf = myMetafile.GetHENHMETAFILE();
    size1 = Metafile::EmfToWmfBits(
        hEmf,
        0,
        NULL,
        MM_ANISOTROPIC,
        EmfToWmfBitsFlagsEmbedEmf);
    std::cout << size1 << std::endl;

}