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sirens.c File Reference

#include "precomp.h"

Go to the source code of this file.

Defines

#define TONE_HIGH_FREQ   2000
#define TONE_HIGH_LEN   75
#define TONE_LOW_FREQ   500
#define TONE_LOW_LEN   75
#define TONE_CLICK_FREQ   400
#define TONE_CLICK_LEN   4
#define TONE_SILENT   10
#define SIREN_LOW_FREQ   1200
#define SIREN_HIGH_FREQ   2000
#define SIREN_INTERVAL   100

Functions

BOOL HighBeep (void)
BOOL LowBeep (void)
BOOL KeyClick (void)
BOOL UpSiren (void)
BOOL DownSiren (void)
BOOL DoBeep (BEEPPROC BeepProc, UINT Count)

Define Documentation

#define SIREN_HIGH_FREQ   2000
 

Definition at line 24 of file sirens.c.

Referenced by DownSiren(), and UpSiren().

#define SIREN_INTERVAL   100
 

Definition at line 25 of file sirens.c.

Referenced by DownSiren(), and UpSiren().

#define SIREN_LOW_FREQ   1200
 

Definition at line 23 of file sirens.c.

Referenced by DownSiren(), and UpSiren().

#define TONE_CLICK_FREQ   400
 

Definition at line 20 of file sirens.c.

Referenced by KeyClick().

#define TONE_CLICK_LEN   4
 

Definition at line 21 of file sirens.c.

Referenced by KeyClick().

#define TONE_HIGH_FREQ   2000
 

Definition at line 16 of file sirens.c.

Referenced by HighBeep().

#define TONE_HIGH_LEN   75
 

Definition at line 17 of file sirens.c.

Referenced by HighBeep().

#define TONE_LOW_FREQ   500
 

Definition at line 18 of file sirens.c.

Referenced by LowBeep().

#define TONE_LOW_LEN   75
 

Definition at line 19 of file sirens.c.

Referenced by LowBeep().

#define TONE_SILENT   10
 

Definition at line 22 of file sirens.c.

Function Documentation

BOOL DoBeep (  BEEPPROC  BeepProc,
UINT  Count
) 
 

Definition at line 128 of file sirens.c.

References BOOL, Count, TRUE, and UserSleep().

Referenced by xxxProcessEventMessage(). 

00129 {
00130     while (Count--) {
00131         (*BeepProc)();
00132         UserSleep(100);
00133     }
00134     return TRUE;
00135 }

BOOL DownSiren (  void   ) 
 

Definition at line 112 of file sirens.c.

References BOOL, DWORD, EnterCrit, LeaveCrit, SIREN_HIGH_FREQ, SIREN_INTERVAL, SIREN_LOW_FREQ, TRUE, and UserBeep(). 

00113 {
00114     DWORD freq;
00115     BOOL BeepStatus = TRUE;
00116 
00117     LeaveCrit();
00118 
00119     for (freq = SIREN_HIGH_FREQ;
00120         BeepStatus && freq >= SIREN_LOW_FREQ;
00121             freq -= SIREN_INTERVAL) {
00122         BeepStatus = UserBeep(freq, (DWORD)1);
00123     }
00124     EnterCrit();
00125     return BeepStatus;
00126 }

BOOL HighBeep (  void   ) 
 

Definition at line 35 of file sirens.c.

References BOOL, EnterCrit, LeaveCrit, Status, TONE_HIGH_FREQ, TONE_HIGH_LEN, and UserBeep(). 

00036 {
00037     BOOL Status;
00038 
00039     LeaveCrit();
00040     Status = UserBeep(TONE_HIGH_FREQ, TONE_HIGH_LEN);
00041     EnterCrit();
00042     return Status;
00043 }

BOOL KeyClick (  void   ) 
 

Definition at line 71 of file sirens.c.

References BOOL, EnterCrit, LeaveCrit, Status, TONE_CLICK_FREQ, TONE_CLICK_LEN, and UserBeep(). 

00072 {
00073     BOOL Status;
00074 
00075     LeaveCrit();
00076     Status = UserBeep(TONE_CLICK_FREQ, TONE_CLICK_LEN);
00077     EnterCrit();
00078     return Status;
00079 }

BOOL LowBeep (  void   ) 
 

Definition at line 53 of file sirens.c.

References BOOL, EnterCrit, LeaveCrit, Status, TONE_LOW_FREQ, TONE_LOW_LEN, and UserBeep(). 

00054 {
00055     BOOL Status;
00056 
00057     LeaveCrit();
00058     Status = UserBeep(TONE_LOW_FREQ, TONE_LOW_LEN);
00059     EnterCrit();
00060     return Status;
00061 }

BOOL UpSiren (  void   ) 
 

Definition at line 89 of file sirens.c.

References BOOL, DWORD, EnterCrit, LeaveCrit, SIREN_HIGH_FREQ, SIREN_INTERVAL, SIREN_LOW_FREQ, TRUE, and UserBeep(). 

00090 {
00091     DWORD freq;
00092     BOOL BeepStatus = TRUE;
00093 
00094     LeaveCrit();
00095     for (freq = SIREN_LOW_FREQ;
00096         BeepStatus && freq <= SIREN_HIGH_FREQ;
00097             freq += SIREN_INTERVAL) {
00098         BeepStatus = UserBeep(freq, (DWORD)1);
00099     }
00100     EnterCrit();
00101     return BeepStatus;
00102 }

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