sndPlaySound function
The sndPlaySound function plays a waveform sound specified either by a file name or by an entry in the registry or the WIN.INI file. This function offers a subset of the functionality of the PlaySound function; sndPlaySound is being maintained for backward compatibility.
Syntax
Parameters
lpszSound
A string that specifies the sound to play. This parameter can be either an entry in the registry or in WIN.INI that identifies a system sound, or it can be the name of a waveform-audio file. (If the function does not find the entry, the parameter is treated as a file name.) If this parameter is NULL, any currently playing sound is stopped.
fuSound
Flags for playing the sound. The following values are defined.
| Value | Meaning |
|---|---|
| SND_ASYNC | The sound is played asynchronously and the function returns immediately after beginning the sound. To terminate an asynchronously played sound, call sndPlaySound with lpszSound set to NULL. |
| SND_LOOP | The sound plays repeatedly until sndPlaySound is called again with the lpszSound parameter set to NULL. You must also specify the SND_ASYNC flag to loop sounds. |
| SND_MEMORY | The parameter specified by lpszSound points to an image of a waveform sound in memory. The data passed must be trusted by the application. |
| SND_NODEFAULT | If the sound cannot be found, the function returns silently without playing the default sound. |
| SND_NOSTOP | If a sound is currently playing in the same process, the function immediately returns FALSE, without playing the requested sound. |
| SND_SENTRY | NoteВ В Requires Windows Vista or later. If this flag is set, the function triggers a SoundSentry event when the sound is played. For more information, see PlaySound. |
| SND_SYNC | The sound is played synchronously and the function does not return until the sound ends. |
| SND_SYSTEM | NoteВ В Requires Windows Vista or later. If this flag is set, the sound is assigned to the audio session for system notification sounds. For more information, see PlaySound. |
Return value
Returns TRUE if successful or FALSE otherwise.
Remarks
If the specified sound cannot be found, sndPlaySound plays the system default sound. If there is no system default entry in the registry or WIN.INI file, or if the default sound cannot be found, the function makes no sound and returns FALSE.
The specified sound must fit in available physical memory and be playable by an installed waveform-audio device driver. If sndPlaySound does not find the sound in the current directory, the function searches for it using the standard directory-search order.
Requirements
Minimum supported client
WindowsВ 2000 Professional [desktop apps only]
Minimum supported server
WindowsВ 2000 Server [desktop apps only]
Unicode and ANSI names
sndPlaySoundW (Unicode) and sndPlaySoundA (ANSI)
PlaySound function
The PlaySound function plays a sound specified by the given file name, resource, or system event. (A system event may be associated with a sound in the registry or in the WIN.INI file.)
Syntax
Parameters
pszSound
A string that specifies the sound to play. The maximum length, including the null terminator, is 256 characters. If this parameter is NULL, any currently playing waveform sound is stopped.
Three flags in fdwSound (SND_ALIAS, SND_FILENAME, and SND_RESOURCE) determine whether the name is interpreted as an alias for a system event, a file name, or a resource identifier. If none of these flags are specified, PlaySound searches the registry or the WIN.INI file for an association with the specified sound name. If an association is found, the sound event is played. If no association is found in the registry, the name is interpreted as a file name.
hmod
Handle to the executable file that contains the resource to be loaded. This parameter must be NULL unless SND_RESOURCE is specified in fdwSound.
fdwSound
Flags for playing the sound. The following values are defined.
| Value | Meaning | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SND_APPLICATION | The pszSound parameter is an application-specific alias in the registry. You can combine this flag with the SND_ALIAS or SND_ALIAS_ID flag to specify an application-defined sound alias. | ||||||||||||||||||
| SND_ALIAS | The pszSound parameter is a system-event alias in the registry or the WIN.INI file. Do not use with either SND_FILENAME or SND_RESOURCE. | ||||||||||||||||||
| SND_ALIAS_ID | The pszSound parameter is a predefined identifier for a system-event alias. See Remarks. | ||||||||||||||||||
| SND_ASYNC | The sound is played asynchronously and PlaySound returns immediately after beginning the sound. To terminate an asynchronously played waveform sound, call PlaySound with pszSound set to NULL. | ||||||||||||||||||
| SND_FILENAME | The pszSound parameter is a file name. If the file cannot be found, the function plays the default sound unless the SND_NODEFAULT flag is set. | ||||||||||||||||||
| SND_LOOP | The sound plays repeatedly until PlaySound is called again with the pszSound parameter set to NULL. If this flag is set, you must also set the SND_ASYNC flag. | ||||||||||||||||||
| SND_MEMORY | The pszSound parameter points to a sound loaded in memory. | ||||||||||||||||||
| SND_NODEFAULT | No default sound event is used. If the sound cannot be found, PlaySound returns silently without playing the default sound. | ||||||||||||||||||
| SND_NOSTOP | |||||||||||||||||||
| SND_PURGE | Not supported. | ||||||||||||||||||
| SND_RESOURCE | The pszSound parameter is a resource identifier; hmod must identify the instance that contains the resource. | ||||||||||||||||||
| SND_SENTRY | NoteВ В Requires WindowsВ Vista or later. If this flag is set, the function triggers a SoundSentry event when the sound is played. SoundSentry is an accessibility feature that causes the computer to display a visual cue when a sound is played. If the user did not enable SoundSentry, the visual cue is not displayed. | ||||||||||||||||||
| SND_SYNC | The sound is played synchronously, and PlaySound returns after the sound event completes. This is the default behavior. | ||||||||||||||||||
| SND_SYSTEM | NoteВ В Requires WindowsВ Vista or later. If this flag is set, the sound is assigned to the audio session for system notification sounds. The system volume-control program (SndVol) displays a volume slider that controls system notification sounds. Setting this flag puts the sound under the control of that volume slider If this flag is not set, the sound is assigned to the default audio session for the application’s process. For more information, see the documentation for the Core Audio APIs. Return valueReturns TRUE if successful or FALSE otherwise. RemarksThe sound specified by pszSound must fit into available physical memory and be playable by an installed waveform-audio device driver. PlaySound searches the following directories for sound files: the current directory; the Windows directory; the Windows system directory; directories listed in the PATH environment variable; and the list of directories mapped in a network. If the function cannot find the specified sound and the SND_NODEFAULT flag is not specified, PlaySound uses the default system event sound instead. If the function can find neither the system default entry nor the default sound, it makes no sound and returns FALSE. If the SND_ALIAS_ID flag is specified in fdwSound, the pszSound parameter must be one of the following values.
The SND_ASYNC flag causes PlaySound to return immediately without waiting for the sound to finish playing. If you combine the SND_MEMORY and SND_ASYNC flags, the memory buffer that contains the sound must remain valid until the sound has completed playing. ExamplesThe following example plays a sound file: The following example plays a sound-file resource: The following example plays a system-event sound: The following example is equivalent to the previous example, but uses an identifier for the system event: The following example plays the sound for an application-specific alias in the registry: The following example stops playback of a sound that is playing asynchronously: RequirementsMinimum supported client WindowsВ 2000 Professional [desktop apps only] Minimum supported server WindowsВ 2000 Server [desktop apps only] Unicode and ANSI names PlaySoundW (Unicode) and PlaySoundA (ANSI) Play to function windows media player failed to initialize playlistFix A Corrupt Windows Media Player Database First thing that needs to be done is to stop the Windows Media Player Network Sharing Service. This service controls media sharing over your network but it also locks the database file so it can’t be deleted by the user. To stop this service enter task manager (crtl+alt+del) and select the services tab. Find “WMPNetworkSvc” in the list then right-click and select “Stop Service”. If you receive a denied error you can also stop the service from the “Services” button at the bottom. Open Windows Explorer and go to “\Users\YOUR USERNAME\AppData\Local\Microsoft\Media Player”. It may be hidden but you can enable hidden folders to be shown on your pc by going to Control Panel > Folder Options and enabling showing hidden folders. Once you’re in the folder, locate the “CurrentDatabase_371.wmdb” file and delete it. If you receive a permission denied error the “WMPNetworksvc” may not have been stopped or you may need to restart your machine and start again. Once the wmdb file has been deleted, restart Windows Media Player and the database should begin to repopulate. 5 people found this reply helpful Was this reply helpful? Sorry this didn’t help. Great! Thanks for your feedback. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. How satisfied are you with this reply? Thanks for your feedback. Fix A Corrupt Windows Media Player Database First thing that needs to be done is to stop the Windows Media Player Network Sharing Service. This service controls media sharing over your network but it also locks the database file so it can’t be deleted by the user. To stop this service enter task manager (crtl+alt+del) and select the services tab. Find “WMPNetworkSvc” in the list then right-click and select “Stop Service”. If you receive a denied error you can also stop the service from the “Services” button at the bottom. Open Windows Explorer and go to “\Users\YOUR USERNAME\AppData\Local\Microsoft\Media Player”. It may be hidden but you can enable hidden folders to be shown on your pc by going to Control Panel > Folder Options and enabling showing hidden folders. Once you’re in the folder, locate the “CurrentDatabase_371.wmdb” file and delete it. If you receive a permission denied error the “WMPNetworksvc” may not have been stopped or you may need to restart your machine and start again. Once the wmdb file has been deleted, restart Windows Media Player and the database should begin to repopulate. Play To. Часть 1В первой части мы поверхностно познакомимся с контрактом Play To, о котором мало кто знает и мало кто реализует, но на самом деле он очень и очень интересный и полезный для пользователя. Функционал PlayTo позволяет передавать музыку, фотографии и видео с приложений на Xbox и другие поддерживаемые устройства, которые находятся в домашней сети. Представьте себе возможность с легкостью отобразить фотографии и видеозаписи с вашего приложения на телевизоре с большим экраном или музыку из вашего приложения на музыкальный центр в гостиной. Использование данного контракта позволит легко включить данные сценарии в обиход ваших пользователей. Это отличный способ сделать ваши приложения более привлекательными для пользователей. Play To предоставляет…:
Разработка привлекательных и интерактивных приложений Play To позволяет расширить возможность работы Вашего приложения до многоэкранного режима, что, конечно же, заставит его выделиться в Windows Store. При реализации Play To вы получаете:
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