WIC enum#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <ole2.h>
#include <wincodec.h>
#include <stdio.h>
#include <wchar.h>
#pragma comment(lib, "ole32")
//#pragma comment(lib, "windowscodecs.lib")
const GUID CLSID_WICImagingFactory = {0xcacaf262,0x9370,0x4615,{0xa1,0x3b,0x9f,0x55,0x39,0xda,0x4c,0xa}};
//const GUID CLSID_WICImagingFactory1 = {0xcacaf262,0x9370,0x4615,{0xa1,0x3b,0x9f,0x55,0x39,0xda,0x4c,0xa}};
//const GUID CLSID_WICImagingFactory2 = {0x317d06e8,0x5f24,0x433d,0xbd,0xf7,0x79,0xce,0x68,0xd8,0xab,0xc2};
const IID IID_IWICImagingFactory = {0xEC5EC8A9,0xC395,0x4314,{0x9C,0x77,0x54,0xD7,0xA9,0x35,0xFF,0x70}};
const IID IID_IWICBitmapCodecInfo = {0xE87A44C4,0xB76E,0x4C47,{0x8B,0x09,0x29,0x8E,0xB1,0x2A,0x27,0x14}};
// https://codexpert.ro/blog/2012/12/21/how-to-enumerate-wic-codecs/
// https://learn.microsoft.com/en-us/archive/msdn-magazine/2008/june/windows-with-c-decoding-windows-vista-icons-with-wic
int __cdecl main(void)
{
HRESULT hr;
IWICImagingFactory* pIWICFactory = 0;
//OleInitialize(NULL);
CoInitializeEx( NULL, COINIT_MULTITHREADED);
hr = CoCreateInstance(&CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, &IID_IWICImagingFactory, (void **)(&pIWICFactory));
if (pIWICFactory) {
IEnumUnknown* pEnum;
DWORD dwOptions = WICComponentEnumerateDefault;
hr = pIWICFactory->lpVtbl->CreateComponentEnumerator(pIWICFactory, WICDecoder, dwOptions, &pEnum);
if(SUCCEEDED(hr))
{
UINT cbBuffer = 256;
ULONG cbActual = 0;
IUnknown* pElement = NULL;
WCHAR wszBuffer[256];
//while(S_OK == pEnum->lpVtbl->Next(pEnum, 1, &pElement, &cbActual))
while(S_OK == pEnum->lpVtbl->Next(pEnum, 1, &pElement, 0))
{
UINT cbActual2 = 0;
IWICBitmapCodecInfo* pCodecInfo;
hr = pElement->lpVtbl->QueryInterface(pElement, &IID_IWICBitmapCodecInfo, (void**)&pCodecInfo);
CLSID clsid;
hr = pCodecInfo->lpVtbl->GetCLSID(pCodecInfo, &clsid);
//hr = pCodecInfo->lpVtbl->GetFriendlyName(pCodecInfo, 0, NULL, &cbActual2);
hr = pCodecInfo->lpVtbl->GetFriendlyName(pCodecInfo, cbBuffer, wszBuffer, &cbActual2);
//wprintf(L"%Xh %u %ls\n", hr, cbActual2, wszBuffer);
wprintf(L"%ls\n", wszBuffer);
pElement = NULL;
}
}
pIWICFactory->lpVtbl->Release(pIWICFactory);
}
OleUninitialize();
return 0;
}
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