Load 32-bit PNG from resource

LoadPng.cpp

HBITMAP LoadPng(HINSTANCE hInstance, LPCWSTR lpBitmapName)
{
	HBITMAP hbmp = nullptr;

	HRSRC hResInfo = FindResourceW(hInstance, lpBitmapName, L"PNG");
	if (hResInfo)
	{
		DWORD dwSize = SizeofResource(hInstance, hResInfo);
		if (dwSize)
		{
			HGLOBAL hResData = LoadResource(hInstance, hResInfo);
			if (hResData)
			{
				LPVOID pImageData = LockResource(hResData);
				if (pImageData)
				{
					IWICImagingFactoryPtr pWICImagingFactory;
					HRESULT hr = pWICImagingFactory.CreateInstance(CLSID_WICImagingFactory);
					if (SUCCEEDED(hr))
					{
						IWICStreamPtr pStream;
						hr = pWICImagingFactory->CreateStream(&pStream);
						if (SUCCEEDED(hr))
						{
							hr = pStream->InitializeFromMemory(reinterpret_cast<BYTE*>(pImageData), dwSize);
							if (SUCCEEDED(hr))
							{
								IWICBitmapDecoderPtr pDecoder;
								hr = pWICImagingFactory->CreateDecoderFromStream(pStream, nullptr, WICDecodeMetadataCacheOnLoad, &pDecoder);
								if (SUCCEEDED(hr))
								{
									IWICBitmapFrameDecodePtr pSource;
									hr = pDecoder->GetFrame(0, &pSource);
									if (SUCCEEDED(pSource))
									{
										IWICBitmapSourcePtr pDest = nullptr;
										hr = WICConvertBitmapSource(GUID_WICPixelFormat32bppPBGRA, pSource, &pDest);
										if (SUCCEEDED(hr))
										{
											UINT uiWidth, uiHeight;
											hr = pDest->GetSize(&uiWidth, &uiHeight);
											if (SUCCEEDED(hr))
											{
												BITMAPINFO bminfo;
												ZeroMemory(&bminfo, sizeof(bminfo));
												bminfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
												bminfo.bmiHeader.biWidth = uiWidth;
												bminfo.bmiHeader.biHeight = -((LONG)uiHeight);
												bminfo.bmiHeader.biPlanes = 1;
												bminfo.bmiHeader.biBitCount = 32;
												bminfo.bmiHeader.biCompression = BI_RGB;
												LPVOID pvImageBits = nullptr;
												HDC hdcScreen = GetDC(nullptr);
												hbmp = CreateDIBSection(hdcScreen, &bminfo, DIB_RGB_COLORS, &pvImageBits, NULL, 0);
												ReleaseDC(nullptr, hdcScreen);
												if (hbmp)
												{
													UINT cbStride = uiWidth * 4;
													const UINT cbImage = cbStride * uiHeight;
													hr = pDest->CopyPixels(nullptr, cbStride, cbImage, static_cast<BYTE *>(pvImageBits));
													if (SUCCEEDED(hr))
														return hbmp;												
												}
											}
										}
									}
								}
							}

						}
					}
				}
			}
		}
	}

	return hbmp;
}