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mmdevapi: Implement MMDeviceCollection methods.

This commit is contained in:
Maarten Lankhorst 2010-02-21 14:24:42 +01:00 committed by Alexandre Julliard
parent 9371fd5f95
commit d53dc08ec5
1 changed files with 27 additions and 2 deletions
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29
dlls/mmdevapi/devenum.c
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@ -468,20 +468,45 @@ static ULONG WINAPI MMDevCol_Release(IMMDeviceCollection *iface)
static HRESULT WINAPI MMDevCol_GetCount(IMMDeviceCollection *iface, UINT *numdevs)
{
MMDevColImpl *This = (MMDevColImpl*)iface;
DWORD i;
TRACE("(%p)->(%p)\n", This, numdevs);
if (!numdevs)
return E_POINTER;
*numdevs = 0;
for (i = 0; i < MMDevice_count; ++i)
{
MMDevice *cur = MMDevice_head[i];
if ((cur->flow == This->flow || This->flow == eAll)
&& (cur->state & This->state))
++(*numdevs);
}
return S_OK;
}
static HRESULT WINAPI MMDevCol_Item(IMMDeviceCollection *iface, UINT i, IMMDevice **dev)
static HRESULT WINAPI MMDevCol_Item(IMMDeviceCollection *iface, UINT n, IMMDevice **dev)
{
MMDevColImpl *This = (MMDevColImpl*)iface;
TRACE("(%p)->(%u, %p)\n", This, i, dev);
DWORD i = 0, j = 0;
TRACE("(%p)->(%u, %p)\n", This, n, dev);
if (!dev)
return E_POINTER;
for (j = 0; j < MMDevice_count; ++j)
{
MMDevice *cur = MMDevice_head[j];
if ((cur->flow == This->flow || This->flow == eAll)
&& (cur->state & This->state)
&& i++ == n)
{
*dev = (IMMDevice *)cur;
IMMDevice_AddRef(*dev);
return S_OK;
}
}
WARN("Could not obtain item %u\n", n);
*dev = NULL;
return E_INVALIDARG;
}