Test Program to verify the implicit behavior of DirectSoundCaptureCreate making use of winmm

test.cpp

#include <windows.h>
#include <cstdio>
#include <dsound.h>

typedef HRESULT(*tDirectSoundCaptureCreate)(LPCGUID lpcGUID, IDirectSoundCapture** ppDSC, IUnknown* pUnkOuter);
tDirectSoundCaptureCreate pDirectSoundCaptureCreate;

int main()
{
	HMODULE hModule;

	hModule = LoadLibraryA("dsound.dll");
	if (!hModule)
	{
		fprintf(stderr, "Could not load dsound.dll");
		return 1;
	}

	pDirectSoundCaptureCreate = (tDirectSoundCaptureCreate)GetProcAddress(hModule, "DirectSoundCaptureCreate");
	if (!pDirectSoundCaptureCreate)
	{
		fprintf(stderr, "Could not find DirectSoundCaptureCreate");
		return 1;
	}

	LPDIRECTSOUNDCAPTURE capture;
	pDirectSoundCaptureCreate(NULL, &capture, NULL);

	fprintf(stderr, "DirectSoundCaptureCreate called, sleeping...");
	while (1)
	{
		Sleep(1 * 60 * 60 * 1000);
	}
}