static void test_SetupDiGetClassDevsExW(void)
{
const GUID not_existing_guid = { 0xdeadbeef, 0xdead, 0xbeef, { 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff } };
HDEVINFO dev_info;
BOOL ret;
SP_DEVINFO_DATA info;
dev_info = SetupDiGetClassDevsExW(¬_existing_guid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE, NULL, NULL, NULL);
ok(dev_info != INVALID_HANDLE_VALUE, "Expected success\n");
ZeroMemory(&info, sizeof(info));
info.cbSize = sizeof(info);
ret = SetupDiEnumDeviceInfo(dev_info, 0, &info);
ok (!ret, "Expected failure.\n");
ok_lasterr(ERROR_NO_MORE_ITEMS);
SetupDiDestroyDeviceInfoList(dev_info);
}
BOOL
ProcessExistingDevices()
{
SP_DEVICE_INTERFACE_DATA interface_data;
SP_DEVINFO_DATA device_data;
PSP_DEVICE_INTERFACE_DETAIL_DATA_W detail_data;
HDEVINFO dev_info;
DWORD length;
int index = 0;
const GUID category_guid = {STATIC_KSCATEGORY_AUDIO};
dev_info = SetupDiGetClassDevsExW(&category_guid,
NULL,
NULL,
DIGCF_PRESENT | DIGCF_DEVICEINTERFACE,
NULL,
NULL,
NULL);
/* printf("%s:\n", ClassString); */
interface_data.cbSize = sizeof(interface_data);
interface_data.Reserved = 0;
/* Enumerate the devices within the category */
index = 0;
length = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA)
+ (MAX_PATH * sizeof(WCHAR));
detail_data =
(PSP_DEVICE_INTERFACE_DETAIL_DATA_W)HeapAlloc(GetProcessHeap(),
0,
length);
if ( ! detail_data )
{
logmsg("ProcessExistingDevices() failed to allocate detail_data\n");
return TRUE;
}
while (
SetupDiEnumDeviceInterfaces(dev_info,
NULL,
&category_guid,
index,
&interface_data) )
{
PnP_AudioDevice* list_node;
ZeroMemory(detail_data, length);
/* NOTE: We don't actually use device_data... */
detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W);
device_data.cbSize = sizeof(device_data);
device_data.Reserved = 0;
SetupDiGetDeviceInterfaceDetailW(dev_info,
&interface_data,
detail_data,
length,
NULL,
&device_data);
list_node = CreateDeviceDescriptor(detail_data->DevicePath, TRUE);
AppendAudioDeviceToList(list_node);
DestroyDeviceDescriptor(list_node);
/* TODO: Cleanup the device we enumerated? */
index ++;
};
HeapFree(GetProcessHeap(), 0, detail_data);
SetupDiDestroyDeviceInfoList(dev_info);
return TRUE;
}
