Donwload file on windows without 3rd party

download.cpp

#include <urlmon.h>
#pragma comment(lib, "urlmon.lib")

bool download(const char* url, OutputMemoryStream& blob) {
	IStream* stream = nullptr;
	if (S_OK != URLOpenBlockingStream(nullptr, url, &stream, 0, nullptr)) {
		return false;
	}
	char buffer[4096];
	ULONG read = 0;
	HRESULT hr;
	do {
		DWORD bytesRead = 0;
		hr = stream->Read(buffer, sizeof(buffer), &bytesRead);

		if (bytesRead > 0)
		{
			blob.write(buffer, bytesRead);
		}
	} while (SUCCEEDED(hr) && hr != S_FALSE);

	return true;
}