In [1]: class test(object):
def __init__(self):
self.pants = 'pants'
@property
def p(self):
return self.pants
@p.setter
def p(self, value):
self.pants = value * 2
....:
In [2]: t = test()
In [3]: t.p
Out[3]: 'pants'
In [4]: t.p = 10
In [5]: t.p
Out[5]: 20
Вот код для перечисления аудиоустройств в C # , используя WMI (ссылка System.Management).
ManagementObjectSearcher objSearcher = new ManagementObjectSearcher(
"SELECT * FROM Win32_SoundDevice");
ManagementObjectCollection objCollection = objSearcher.Get();
foreach (ManagementObject obj in objCollection)
{
foreach (PropertyData property in obj.Properties)
{
Console.Out.WriteLine(String.Format("{0}:{1}", property.Name, property.Value));
}
}
В результате получается что-то вроде:
Availability: Caption:USB Audio Device ConfigManagerErrorCode:0 ConfigManagerUserConfig:False CreationClassName:Win32_SoundDevice Description:USB Audio Device DeviceID:USB\VID_047F&PID_0CA1&MI_00\6&2C037688&0&0000 DMABufferSize: ErrorCleared: ErrorDescription: InstallDate: LastErrorCode: Manufacturer:(Generic USB Audio) MPU401Address: Name:USB Audio Device PNPDeviceID:USB\VID_047F&PID_0CA1&MI_00\6&2C037688&0&0000 PowerManagementCapabilities: PowerManagementSupported:False ProductName:USB Audio Device Status:OK StatusInfo:3 SystemCreationClassName:Win32_ComputerSystem SystemName: Availability: Caption:Realtek AC'97 Audio for VIA (R) Audio Controller ConfigManagerErrorCode:0 ConfigManagerUserConfig:False CreationClassName:Win32_SoundDevice Description:Realtek AC'97 Audio for VIA (R) Audio Controller DeviceID:PCI\VEN_1106&DEV_3059&SUBSYS_09011558&REV_60\3&61AAA01&1&8D DMABufferSize: ErrorCleared: ErrorDescription: InstallDate: LastErrorCode: Manufacturer:Realtek MPU401Address: Name:Realtek AC'97 Audio for VIA (R) Audio Controller PNPDeviceID:PCI\VEN_1106&DEV_3059&SUBSYS_09011558&REV_60\3&61AAA01&1&8D PowerManagementCapabilities: PowerManagementSupported:False ProductName:Realtek AC'97 Audio for VIA (R) Audio Controller Status:OK StatusInfo:3 SystemCreationClassName:Win32_ComputerSystem SystemName: Availability:
WMI досадно не различает просто устройства ввода и вывода для звука. Однако с помощью управляемого интерфейса DirectSound и класса DevicesCollection как показано ниже (ссылка Microsoft.DirectX.DirectSound), мы можем получить гораздо больше информации, ориентированной на звук.
DevicesCollection devColl = new DevicesCollection();
foreach (DeviceInformation devInfo in devColl)
{
Device dev = new Device(devInfo.DriverGuid);
//use dev.Caps, devInfo to access a fair bit of info about the sound device
}
вот пример
Добавьте ссылку на System.Management
ManagementObjectSearcher mo = new ManagementObjectSearcher("select * from Win32_SoundDevice");
foreach (ManagementObject soundDevice in mo.Get())
{
Console.WriteLine(soundDevice.GetPropertyValue("DeviceId"));
Console.WriteLine(soundDevice.GetPropertyValue("Manufacturer"));
// etc
}