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mmdevapi: Add code to enumerate NOTPRESENT devices.

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This commit is contained in:
Maarten Lankhorst 2010-01-17 13:38:31 +01:00 committed by Alexandre Julliard
parent aef39f3d9f
commit abd9627d92
1 changed files with 78 additions and 5 deletions
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83
dlls/mmdevapi/devenum.c
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@ -24,6 +24,8 @@
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "wine/debug.h"
#include "ole2.h"
@ -33,6 +35,24 @@
WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
static const WCHAR software_mmdevapi[] =
{ 'S','o','f','t','w','a','r','e','\\',
'M','i','c','r','o','s','o','f','t','\\',
'W','i','n','d','o','w','s','\\',
'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
'M','M','D','e','v','i','c','e','s','\\',
'A','u','d','i','o',0};
static const WCHAR reg_render[] =
{ 'R','e','n','d','e','r',0 };
static const WCHAR reg_capture[] =
{ 'C','a','p','t','u','r','e',0 };
static const WCHAR reg_devicestate[] =
{ 'D','e','v','i','c','e','S','t','a','t','e',0 };
static const WCHAR reg_alname[] =
{ 'A','L','N','a','m','e',0 };
static const WCHAR reg_properties[] =
{ 'P','r','o','p','e','r','t','i','e','s',0 };
typedef struct MMDevEnumImpl
{
const IMMDeviceEnumeratorVtbl *lpVtbl;
@ -41,27 +61,35 @@ typedef struct MMDevEnumImpl
static MMDevEnumImpl *MMDevEnumerator;
static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl;
static const IMMDeviceCollectionVtbl MMDevColVtbl;
typedef struct MMDevColImpl
{
const IMMDeviceCollectionVtbl *lpVtbl;
LONG ref;
MMDevEnumImpl *parent;
EDataFlow flow;
DWORD state;
} MMDevColImpl;
static const IMMDeviceCollectionVtbl MMDevColVtbl;
static HRESULT MMDevCol_Create(IMMDeviceCollection **ppv, MMDevEnumImpl *parent, EDataFlow flow, DWORD state)
/* Creates or updates the state of a device
* If GUID is null, a random guid will be assigned
* and the device will be created
*/
static void MMDevice_Create(WCHAR *name, GUID *id, EDataFlow flow, DWORD state)
{
FIXME("stub\n");
}
static HRESULT MMDevCol_Create(IMMDeviceCollection **ppv, EDataFlow flow, DWORD state)
{
MMDevColImpl *This;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
*ppv = NULL;
if (!This)
return E_OUTOFMEMORY;
This->lpVtbl = &MMDevColVtbl;
This->ref = 1;
This->parent = parent;
This->flow = flow;
This->state = state;
*ppv = (IMMDeviceCollection*)This;
@ -143,6 +171,10 @@ HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
if (!This)
{
DWORD i = 0;
HKEY root, cur, key_capture = NULL, key_render = NULL;
LONG ret;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
*ppv = NULL;
if (!This)
@ -150,6 +182,47 @@ HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
This->ref = 1;
This->lpVtbl = &MMDevEnumVtbl;
MMDevEnumerator = This;
ret = RegOpenKeyExW(HKEY_LOCAL_MACHINE, software_mmdevapi, 0, KEY_READ, &root);
if (ret == ERROR_SUCCESS)
ret = RegOpenKeyExW(root, reg_capture, 0, KEY_READ, &key_capture);
if (ret == ERROR_SUCCESS)
ret = RegOpenKeyExW(root, reg_render, 0, KEY_READ, &key_render);
cur = key_capture;
if (ret != ERROR_SUCCESS)
{
RegCloseKey(key_capture);
RegCloseKey(key_render);
TRACE("Couldn't open key: %u\n", ret);
}
else do {
WCHAR guidvalue[39];
WCHAR alname[128];
GUID guid;
DWORD len;
len = sizeof(guidvalue);
ret = RegEnumKeyExW(cur, i++, guidvalue, &len, NULL, NULL, NULL, NULL);
if (ret == ERROR_NO_MORE_ITEMS)
{
if (cur == key_capture)
{
cur = key_render;
i = 0;
continue;
}
break;
}
if (ret != ERROR_SUCCESS)
continue;
len = sizeof(alname);
RegGetValueW(cur, guidvalue, reg_alname, RRF_RT_REG_SZ, NULL, alname, &len);
if (SUCCEEDED(CLSIDFromString(guidvalue, &guid)))
MMDevice_Create(alname, &guid,
cur == key_capture ? eCapture : eRender,
DEVICE_STATE_NOTPRESENT);
} while (1);
RegCloseKey(root);
}
return IUnknown_QueryInterface((IUnknown*)This, riid, ppv);
}
@ -206,7 +279,7 @@ static HRESULT WINAPI MMDevEnum_EnumAudioEndpoints(IMMDeviceEnumerator *iface, E
return E_INVALIDARG;
if (mask & ~DEVICE_STATEMASK_ALL)
return E_INVALIDARG;
return MMDevCol_Create(devices, This, flow, mask);
return MMDevCol_Create(devices, flow, mask);
}
static HRESULT WINAPI MMDevEnum_GetDefaultAudioEndpoint(IMMDeviceEnumerator *iface, EDataFlow flow, ERole role, IMMDevice **device)