Sweden-Number/dlls/mmdevapi/tests/mmdevenum.c

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/*
* Copyright 2009 Maarten Lankhorst
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "wine/test.h"
#define COBJMACROS
#include "initguid.h"
#include "mmdeviceapi.h"
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#include "audioclient.h"
#include "audiopolicy.h"
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#include "dshow.h"
#include "dsound.h"
#include "devpkey.h"
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DEFINE_GUID(GUID_NULL,0,0,0,0,0,0,0,0,0,0,0);
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/* Some of the QueryInterface tests are really just to check if I got the IIDs right :) */
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/* IMMDeviceCollection appears to have no QueryInterface method and instead forwards to mme */
static void test_collection(IMMDeviceEnumerator *mme, IMMDeviceCollection *col)
{
IMMDeviceCollection *col2;
IMMDeviceEnumerator *mme2;
IUnknown *unk;
HRESULT hr;
ULONG ref;
UINT numdev;
IMMDevice *dev;
/* collection doesn't keep a ref on parent */
IMMDeviceEnumerator_AddRef(mme);
ref = IMMDeviceEnumerator_Release(mme);
ok(ref == 2, "Reference count on parent is %u\n", ref);
ref = IMMDeviceCollection_AddRef(col);
IMMDeviceCollection_Release(col);
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ok(ref == 2, "Invalid reference count %u on collection\n", ref);
hr = IMMDeviceCollection_QueryInterface(col, &IID_IUnknown, NULL);
ok(hr == E_POINTER, "Null ppv returns %08x\n", hr);
hr = IMMDeviceCollection_QueryInterface(col, &IID_IUnknown, (void**)&unk);
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ok(hr == S_OK, "Cannot query for IID_IUnknown: 0x%08x\n", hr);
if (hr == S_OK)
{
ok((IUnknown*)col == unk, "Pointers are not identical %p/%p/%p\n", col, unk, mme);
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IUnknown_Release(unk);
}
hr = IMMDeviceCollection_QueryInterface(col, &IID_IMMDeviceCollection, (void**)&col2);
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ok(hr == S_OK, "Cannot query for IID_IMMDeviceCollection: 0x%08x\n", hr);
if (hr == S_OK)
IMMDeviceCollection_Release(col2);
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hr = IMMDeviceCollection_QueryInterface(col, &IID_IMMDeviceEnumerator, (void**)&mme2);
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ok(hr == E_NOINTERFACE, "Query for IID_IMMDeviceEnumerator returned: 0x%08x\n", hr);
if (hr == S_OK)
IMMDeviceEnumerator_Release(mme2);
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hr = IMMDeviceCollection_GetCount(col, NULL);
ok(hr == E_POINTER, "GetCount returned 0x%08x\n", hr);
hr = IMMDeviceCollection_GetCount(col, &numdev);
ok(hr == S_OK, "GetCount returned 0x%08x\n", hr);
dev = (void*)(LONG_PTR)0x12345678;
hr = IMMDeviceCollection_Item(col, numdev, &dev);
ok(hr == E_INVALIDARG, "Asking for too high device returned 0x%08x\n", hr);
ok(dev == NULL, "Returned non-null device\n");
if (numdev)
{
hr = IMMDeviceCollection_Item(col, 0, NULL);
ok(hr == E_POINTER, "Query with null pointer returned 0x%08x\n", hr);
hr = IMMDeviceCollection_Item(col, 0, &dev);
ok(hr == S_OK, "Valid Item returned 0x%08x\n", hr);
ok(dev != NULL, "Device is null!\n");
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if (dev != NULL)
{
char temp[128];
WCHAR *id = NULL;
if (IMMDevice_GetId(dev, &id) == S_OK)
{
IMMDevice *dev2;
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temp[sizeof(temp)-1] = 0;
WideCharToMultiByte(CP_ACP, 0, id, -1, temp, sizeof(temp)-1, NULL, NULL);
trace("Device found: %s\n", temp);
hr = IMMDeviceEnumerator_GetDevice(mme, id, &dev2);
ok(hr == S_OK, "GetDevice failed: %08x\n", hr);
IMMDevice_Release(dev2);
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CoTaskMemFree(id);
}
}
if (dev)
IMMDevice_Release(dev);
}
IMMDeviceCollection_Release(col);
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}
/* Only do parameter tests here, the actual MMDevice testing should be a separate test */
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START_TEST(mmdevenum)
{
static const WCHAR not_a_deviceW[] = {'n','o','t','a','d','e','v','i','c','e',0};
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HRESULT hr;
IUnknown *unk = NULL;
IMMDeviceEnumerator *mme, *mme2;
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ULONG ref;
IMMDeviceCollection *col;
IMMDevice *dev;
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CoInitializeEx(NULL, COINIT_MULTITHREADED);
hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, (void**)&mme);
if (FAILED(hr))
{
skip("mmdevapi not available: 0x%08x\n", hr);
return;
}
/* Odd behavior.. bug? */
ref = IMMDeviceEnumerator_AddRef(mme);
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ok(ref == 3, "Invalid reference count after incrementing: %u\n", ref);
IMMDeviceEnumerator_Release(mme);
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hr = IMMDeviceEnumerator_QueryInterface(mme, &IID_IUnknown, (void**)&unk);
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ok(hr == S_OK, "returned 0x%08x\n", hr);
if (hr != S_OK) return;
ok( (LONG_PTR)mme == (LONG_PTR)unk, "Pointers are unequal %p/%p\n", unk, mme);
IUnknown_Release(unk);
/* Proving that it is static.. */
hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, (void**)&mme2);
ok(hr == S_OK, "CoCreateInstance failed: 0x%08x\n", hr);
IMMDeviceEnumerator_Release(mme2);
ok(mme == mme2, "Pointers are not equal!\n");
hr = IMMDeviceEnumerator_QueryInterface(mme, &IID_IUnknown, NULL);
ok(hr == E_POINTER, "Null pointer on QueryInterface returned %08x\n", hr);
hr = IMMDeviceEnumerator_QueryInterface(mme, &GUID_NULL, (void**)&unk);
ok(!unk, "Unk not reset to null after invalid QI\n");
ok(hr == E_NOINTERFACE, "Invalid hr %08x returned on IID_NULL\n", hr);
hr = IMMDeviceEnumerator_GetDevice(mme, not_a_deviceW, NULL);
ok(hr == E_POINTER, "GetDevice gave wrong error: %08x\n", hr);
hr = IMMDeviceEnumerator_GetDevice(mme, NULL, &dev);
ok(hr == E_POINTER, "GetDevice gave wrong error: %08x\n", hr);
hr = IMMDeviceEnumerator_GetDevice(mme, not_a_deviceW, &dev);
ok(hr == E_INVALIDARG, "GetDevice gave wrong error: %08x\n", hr);
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col = (void*)(LONG_PTR)0x12345678;
hr = IMMDeviceEnumerator_EnumAudioEndpoints(mme, 0xffff, DEVICE_STATEMASK_ALL, &col);
ok(hr == E_INVALIDARG, "Setting invalid data flow returned 0x%08x\n", hr);
ok(col == NULL, "Collection pointer non-null on failure\n");
hr = IMMDeviceEnumerator_EnumAudioEndpoints(mme, eAll, DEVICE_STATEMASK_ALL+1, &col);
ok(hr == E_INVALIDARG, "Setting invalid mask returned 0x%08x\n", hr);
hr = IMMDeviceEnumerator_EnumAudioEndpoints(mme, eAll, DEVICE_STATEMASK_ALL, NULL);
ok(hr == E_POINTER, "Invalid pointer returned: 0x%08x\n", hr);
hr = IMMDeviceEnumerator_EnumAudioEndpoints(mme, eAll, DEVICE_STATEMASK_ALL, &col);
ok(hr == S_OK, "Valid EnumAudioEndpoints returned 0x%08x\n", hr);
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if (hr == S_OK)
{
ok(!!col, "Returned null pointer\n");
if (col)
test_collection(mme, col);
}
IMMDeviceEnumerator_Release(mme);
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}