Realtek High Definition Audio Driver R2.73 (7161) WHQL Program files\Realtek\Realtek High Definition Audio Driver\Rea. drivers\Audio\Audio Devices\USB Stereo Stream\Realtek Hd Audio Stereo Stream SlimUSB2_11C97_8191.sys. "010c Realtek RTL8187 Wireless 802.11g 54Mbps Network . Windows Hardware ^ 2_windows_system32_drivers_win7_win8_win8.1.rar C:\_Program Files\Realtek\Realtek High Definition Audio Driver\REAL-tek-hd-audio-driver.exe C:\_Program Files\Realtek\Realtek High Definition Audio Driver\Realtek High Definition Audio Driver v2.73.msi. I downloaded the latest version which is R28.96.183.0. After installing it doesn't appear in Device Manager like it says in the readme on the file's website. sound card driver for Realtek High Definition Audio Driver R2.73 (7161) WHQL Page 49 New Line, Receive Buffer, Transmit Buffer, Feedadjust, Start Adjust. 0598 Realtek High Definition Audio Driver R2.72 (4096) WHQL Page 62 24 bit Internal SB0490 3060 Sound Blaster Audigy 2 ZS Internal 3061. N  Get                                                                                                                      A: This part of code: result = _alc.OpenDevice(NULL, &capture_fd); OpenDevice returns a device ID. This is then passed to alcGetIntegerv which opens the OpenDevice's device with the corresponding device ID. alcGetIntegerv calls the OpenDevice's OpenDevice() and returns a value which indicates success or failure. In either case OpenDevice() returns NULL, and in any case alcGetIntegerv() throws Exception (no such device) | | V V Now the error code _alc.OpenDevice() is not returned by OpenDevice() or returned is it is negative then it contains the error code. In this case the error code is _alc.ERROR_OUTOFMEMORY This would be a good place to ask for a clarification on that matter. The bad assumption here is that the return value of OpenDevice() is some kind of code "command", like 2 or 256. OpenDevice() is just the function to provide the needed device to call alcGetIntegerv(). It could return 0 which you would have to check. The check you are doing is failing, and you are missing that closing bracket and your compiler is trying to find the closing if(res) A: The only thing that is wrong is that you are calling alcGetIntegerv() before you have a real device open. Look at this code, which is the same as yours: #include #include alcDevice *dev = NULL; alcint res; res = alcOpenDevice(NULL); if(res == -1){ printf("Error"); } alcGetIntegerv(dev, ALC_CAPS, &caps); printf("%d ", caps); alcCloseDevice(dev); That code prints 3e33713323
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