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== WinAlarm ==
Generates an audible alarm.
; WinAlarm(desktopHandle, alarmStyle) : Generates an audible alarm.
 
== Syntax ==
WinAlarm(desktopHandle, alarmStyle)


=== Parameters ===
=== Parameters ===
; desktopHandle - [[HWND]] - input : The desktop handle.
;desktopHandle - [[HWND]] - input : The desktop handle.
; alarmStyle - [[ULONG]] - input : The alarm style to be.
;alarmStyle - [[ULONG]] - input : The alarm style to be.


=== Constants ===
=== Constants ===
These are the differing alarm tone constants:
These are the differing alarm tone constants:
* [[WA_WARNING]]
*WA_WARNING
* [[WA_NOTE]]
*WA_NOTE
* [[WA_ERROR]]
*WA_ERROR
 
The frequency of these alarm types can be changed with '''WinSetSysValue'''. The alarm frequency range is 0x0025 through 0x7FFF. If SV_ALARM is set to [[FALSE]] then no alarm will sound.
The frequency of these alarm types can be changed with [[WinSetSysValue]]. The alarm frequency range is 0x0025 through 0x7FFF. If [[SV_ALARM]] is set to [[FALSE]] then no alarm will sound.


=== Returns ===
=== Returns ===
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* [[FALSE]]
* [[FALSE]]


Possible errors from [[OS2 API:WinGetLastError|WinGetLastError]] are:
Possible errors from [[WinGetLastError]] are:
* [[OS2 API:PMI:error#PM_INVALID_HWND|PM_INVALID_HWND]]
* [[OS2 API:PMI:error#PM_INVALID_HWND|PM_INVALID_HWND]]
* [[OS2 API:PMI:error#PM_INVALID_PARAM|PM_INVALID_PARAM]]
* [[OS2 API:PMI:error#PM_INVALID_PARAM|PM_INVALID_PARAM]]
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  ...
  ...


=== Related Functions ===
==Related Functions==
[[WinFlashWindow]]
*WinFlashWindow
[[WinMessageBox]]
*[[WinMessageBox]]


=== Notes ===
==Notes==
[[WinAlarm]] function also used for multimedia subsystem notification.
[[WinAlarm]] function also used for multimedia subsystem notification.


[[Category:Win]]
[[Category:Win]]

Revision as of 19:26, 1 February 2017

Generates an audible alarm.

Syntax

WinAlarm(desktopHandle, alarmStyle)

Parameters

desktopHandle - HWND - input
The desktop handle.
alarmStyle - ULONG - input
The alarm style to be.

Constants

These are the differing alarm tone constants:

  • WA_WARNING
  • WA_NOTE
  • WA_ERROR

The frequency of these alarm types can be changed with WinSetSysValue. The alarm frequency range is 0x0025 through 0x7FFF. If SV_ALARM is set to FALSE then no alarm will sound.

Returns

This function returns a BOOL with the values of:

Possible errors from WinGetLastError are:

Module

DOSCALLS

Define (C/C++)

INCL_WINDIALOGS or INCL_WIN or INCL_PM or INCL_COMMON

Calling Convention

Cdecl32

Example Code

...
APIRET rc;
rc = WinAlarm (HWND_DESKTOP, WA_NOTE);
...

Related Functions

Notes

WinAlarm function also used for multimedia subsystem notification.