Cannot delete GDI+ Image - c++

Question

I am programming a basic image converter to convert an image to a BMP. I clear up the Image at the end to avoid memory leaks. However, when I try to compile it, this error comes up:
type 'class Gdiplus::Image' argument given to 'delete', expected pointer
I have checked multiple websites but when I use their examples, it still comes up with that compiler error. Even Microsoft's examples come up with that error! I saw a website containing a way to delete the Image but I can't remember the link or the way that they deleted the Image.
My code:
#include <windows.h>
#include <gdiplus.h>
using namespace Gdiplus;
int GetEncoderClsid(const WCHAR* format, CLSID* pClsid)
{
using namespace Gdiplus; UINT num = 0; // number of image encoders
UINT size = 0; // size of the image encoder array in bytes
ImageCodecInfo* pImageCodecInfo = NULL;
GetImageEncodersSize(&num, &size);
if(size == 0)
return -1; // Failure
pImageCodecInfo = (ImageCodecInfo*)(malloc(size));
if(pImageCodecInfo == NULL)
return -1; // Failure
GetImageEncoders(num, size, pImageCodecInfo);
for(UINT j = 0; j < num; ++j)
{
if( wcscmp(pImageCodecInfo[j].MimeType, format) == 0 )
{
*pClsid = pImageCodecInfo[j].Clsid;
free(pImageCodecInfo);
return j; // Success
}
}
free(pImageCodecInfo);
return 0;
}
int main()
{
GdiplusStartupInput gdiplusStartupInput;
ULONG_PTR gdiplusToken;
CLSID bmpClsid;
GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
Image picture(L"TEST.GIF");
GetEncoderClsid(L"image/bmp", &bmpClsid);
picture.Save(L"Mosaic2.bmp", &bmpClsid, NULL);
delete picture;
GdiplusShutdown(gdiplusToken);
return 0;
}
I will put you in the credits of the program if you give me an answer that works.
Thank you!

Answer 1

Well, delete only works on pointers and your "picture" is an object (unless it is overloaded in some way). Moreover, since it's a local object it should call destructor at the end of main (which should release related memory, including loaded image). But in case memory needs to be released before GdiplusShutdown(gdiplusToken); you can adapt your code to use pointers:
Image *picture = new Image (L"TEST.GIF");
GetEncoderClsid(L"image/bmp", &bmpClsid);
picture->Save(L"Mosaic2.bmp", &bmpClsid, NULL);
delete picture;