Program crashes after loading image (GDIplus) - c++

Question

I wanted to write a program which loads an image given by command line and afterwards does something with it. My problem now is: Whenever I execute the program it prints me the palette size of the image (which gives me a wrong output (12) for every picture in jpg format I enter), and afterwards it crashes, but I can not figure out my mistake.
What am I doing wrong?
inline bool exists(const std::string& name) {
if (FILE *file = fopen(name.c_str(), "r")) {
fclose(file);
return true;
}
else {
return false;
}
}
int main(int argc, char* argv[])
{
if (argc != 3)
{
std::cout << "Too few/too much arguments. Usage: ShrinkImage <Input-File> <Number of target colours>\n";
return 0;
}
int num_colors;
char * filepath = argv[1];
if (!exists(filepath))
{
std::cout << "File does not exist.\n";
return 0;
}
num_colors = std::stoi(argv[2], nullptr);
ULONG_PTR(m_gdiplusToken);
Gdiplus::GdiplusStartupInput gdiplusstartupinput;
Gdiplus::GdiplusStartup(&m_gdiplusToken, &gdiplusstartupinput, NULL);
const size_t cSize = strlen(filepath) + 1;
size_t Size = cSize - 1;
wchar_t *wc = new wchar_t[cSize];
swprintf(wc, cSize, L"%hs", filepath);
Gdiplus::Image image(wc);
std::cout << image.GetPaletteSize() << '\n';
std::cout << "Printed PaletteSize\n";
delete wc;
Gdiplus::GdiplusShutdown(m_gdiplusToken);
std::cout << "After Shutdown\n";
return 0;
}

Answer 1

Solution is:
Writing instead of
Gdiplus::Image image(wc);
this:
Gdiplus::Image * image = Gdiplus::Image::FromFile(wc);
delete image;
image = 0;
This solves my problem.