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OS/2 Shareware BBS: 10 Tools
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10-Tools.zip
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warptlk3.zip
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TOOLKIT
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SAMPLES
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MM
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RECORDER
/
OPTIONS.C
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C/C++ Source or Header
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1995-08-24
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19KB
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543 lines
/******************************************************************************
* File Name : OPTIONS.C
*
* Description : This file contains the C source code required for the
* Recorder sample program.
*
* MMPM/2 API's : List of all MMPM/2 API's that are used in
* this module
*
* mmioOpen
* mmioGetHeader
* mmioClose
*
* Copyright (C) IBM 1993
******************************************************************************/
#define INCL_WIN /* required to use Win APIs. */
#define INCL_PM /* required to use PM APIs. */
#define INCL_OS2MM /* required for MCI and MMIO headers */
#include <os2.h>
#include <os2me.h>
#include <stdio.h>
#include <string.h>
#include "recorder.h"
/*
* Procedure/Function Prototypes
*/
VOID EnableTheOption( USHORT idOption );
VOID DisableTheOption( HWND hwndMenu, USHORT idOption );
extern HWND hwndMenu;
extern HWND hwndFrame;
extern HAB hab;
/******************************************************************************
* Name : SelectTheOption
*
* Description : This procedure will select the menu pulldown option.
*
* Concepts : None.
*
* MMPM/2 API's : None.
*
* Parameters : idOption - Id for the selected menu pulldown option.
*
* Return : None.
*
******************************************************************************/
VOID SelectTheOption( USHORT idOption )
{
USHORT usAttrib;
/*
* Query the selected menu pulldown to get their current state...
*/
usAttrib = (USHORT) WinSendMsg( hwndMenu,
MM_QUERYITEMATTR,
MPFROM2SHORT(idOption, TRUE),
MPFROMSHORT(MIA_CHECKED));
if (!(usAttrib & MIA_CHECKED))
{
/*
* Selected option was not in selected state, set the attribute and
* select it.
*/
usAttrib ^= MIA_CHECKED;
WinSendMsg( hwndMenu,
MM_SETITEMATTR,
MPFROM2SHORT( idOption, TRUE),
MPFROM2SHORT( MIA_CHECKED, usAttrib ) );
}
return;
}
/******************************************************************************
* Name : DeselectTheOption
*
* Description : This procedure will deselect the menu pulldown option.
*
* Concepts : None.
*
* MMPM/2 API's : None.
*
* Parameters : idOption - Id for the selected menu pulldown option.
*
* Return : None.
*
******************************************************************************/
VOID DeselectTheOption( USHORT idOption )
{
USHORT usAttrib;
/*
* Query the selected menu pulldown to get their current state...
*/
usAttrib = (USHORT) WinSendMsg( hwndMenu,
MM_QUERYITEMATTR,
MPFROM2SHORT(idOption, TRUE),
MPFROMSHORT(MIA_CHECKED));
if (usAttrib & MIA_CHECKED)
{
/*
* Selected option was in selected state, set the attribute and
* deselect it.
*/
usAttrib ^= MIA_CHECKED;
WinSendMsg( hwndMenu,
MM_SETITEMATTR,
MPFROM2SHORT( idOption, TRUE),
MPFROM2SHORT( MIA_CHECKED, usAttrib ) );
}
return;
}
/******************************************************************************
* Name : DisableTheOption
*
* Description : This procedure will disable the menu pulldown option.
*
* Concepts : None.
*
* MMPM/2 API's : None.
*
* Parameters : hwndMenu - handle for the menu.
* idOption - Id for the selected menu pulldown option.
*
* Return : None.
*
******************************************************************************/
VOID DisableTheOption( HWND hwndMenu, USHORT idOption )
{
USHORT usAttrib;
/*
* Query the selected menu pulldown to get their current state...
*/
usAttrib = (USHORT) WinSendMsg( hwndMenu,
MM_QUERYITEMATTR,
MPFROM2SHORT(idOption, TRUE),
MPFROMSHORT(MIA_DISABLED));
if (!(usAttrib & MIA_DISABLED))
{
/*
* Selected option was in enable state, set the attribute and
* disable it.
*/
usAttrib ^= MIA_DISABLED;
WinSendMsg( hwndMenu,
MM_SETITEMATTR,
MPFROM2SHORT( idOption, TRUE ),
MPFROM2SHORT( MIA_DISABLED, usAttrib));
}
return;
}
/******************************************************************************
* Name : EnableTheOption
*
* Description : This procedure will enable the menu pulldown option.
*
* Concepts : None.
*
* MMPM/2 API's : None.
*
* Parameters : idOption - Id for the selected menu pulldown option.
*
* Return : None.
*
******************************************************************************/
VOID EnableTheOption( USHORT idOption )
{
USHORT usAttrib;
/*
* Query the selected menu pulldown to get their current state...
*/
usAttrib = (USHORT) WinSendMsg( hwndMenu,
MM_QUERYITEMATTR,
MPFROM2SHORT(idOption, TRUE),
MPFROMSHORT(MIA_DISABLED));
if (usAttrib & MIA_DISABLED)
{
/*
* Selected option was in disable state, set the attribute and
* enable it.
*/
usAttrib ^= MIA_DISABLED;
WinSendMsg( hwndMenu,
MM_SETITEMATTR,
MPFROM2SHORT( idOption, TRUE ),
MPFROM2SHORT( MIA_DISABLED, usAttrib));
}
return;
}
/******************************************************************************
* Name : SetTheOptions
*
* Description : If the user selected an existing file, this procedure
* will do the following:
* - get the file header information.
* - sets checkmarks on the appropriate type menu options.
* - disable the other type menu options.
*
* If the user selected a new file, this procedure will do
* the following:
* - Enable the disabled type menu options.
* - Deselect the selected type menu options.
* - Select the default type menu options.
*
* MMPM/2 API's : mmioOpen
* mmioGetHeader
*
* Parameters : fSelectedFileType : Selected file type - new/existing.
*
* Return : TRUE - if there is no error
* FALSE - if there is an error
*
\******************************************************************************/
BOOL SetTheOptions( BOOL fSelectedFileType )
{
ULONG rc; /* for return code */
HMMIO hmmio; /* Handle to the currently loaded file*/
ULONG lHeaderLength; /* for header length */
LONG lBytes; /* used for mmioGetheader api */
MMAUDIOHEADER mmAudioHeader; /* WAVE header structure */
extern CHAR szFileName[FILE_NAME_SIZE];/* for fully qualified file name */
extern BOOL fMonoSupported; /* Dev supports mono files */
extern BOOL fStereoSupported; /* Dev supports stereo files */
extern BOOL fVoiceSupported; /* Dev supports 11 kHz files */
extern BOOL fMusicSupported; /* Dev supports 22 kHz files */
extern BOOL fHiFiSupported; /* Dev supports 44 kHz files */
extern BOOL fHighQualitySupported; /* Dev supports 16 bps files */
extern BOOL fLoQualitySupported; /* Dev supports 8 bps files */
if (fSelectedFileType != NEW_FILE)
{
/*
* Selected file is an EXISTING file. Open the file get the header
* information.
*/
hmmio = mmioOpen( szFileName, (PMMIOINFO)NULL, MMIO_READWRITE );
if (!hmmio)
{
MessageBox( IDS_CANNOT_OPEN_INPUT_FILE, /* ID of the message */
MB_OK | MB_INFORMATION | MB_MOVEABLE); /* style */
return( FALSE );
}
/*
* Get the header information from the selected file.
*/
lHeaderLength = sizeof(MMAUDIOHEADER);
rc = mmioGetHeader( hmmio,
(PVOID)&mmAudioHeader,
lHeaderLength,
(PLONG)&lBytes,
(ULONG) NULL,
(ULONG) NULL );
if (rc)
{
MessageBox( IDS_MMIO_GET_HEADER_FAIL, /* ID of the message */
MB_OK | MB_INFORMATION | MB_MOVEABLE); /* style */
return( FALSE );
}
}
/*
* Before setting the correct selctions, enable the disbled items
* in the menu pulldown and deselect the selected items.
*/
if (fMonoSupported) EnableTheOption( IDM_MONO );
if (fStereoSupported) EnableTheOption( IDM_STEREO );
if (fVoiceSupported) EnableTheOption( IDM_VOICE );
if (fMusicSupported) EnableTheOption( IDM_MUSIC );
if (fHiFiSupported) EnableTheOption( IDM_HIGH_FIDELITY );
if (fLoQualitySupported) EnableTheOption( IDM_LOW_QUALITY );
if (fHighQualitySupported) EnableTheOption( IDM_HIGH_QUALITY );
DeselectTheOption( IDM_MONO );
DeselectTheOption( IDM_VOICE );
DeselectTheOption( IDM_MUSIC );
DeselectTheOption( IDM_HIGH_FIDELITY );
DeselectTheOption( IDM_LOW_QUALITY );
DeselectTheOption( IDM_STEREO );
DeselectTheOption( IDM_HIGH_QUALITY );
if (fSelectedFileType != NEW_FILE)
{
/*
* Selected file is an EXISTING file. Check the header information
* and check the appropriate item.
*/
if ( mmAudioHeader.mmXWAVHeader.WAVEHeader.usChannels == 1 )
{
/*
* Selected file is using only channel. Select the "Mono" menu option.
* Disable the "Stereo" menu option.
*/
SelectTheOption( IDM_MONO );
DisableTheOption( hwndMenu, IDM_STEREO );
}
else
if ( mmAudioHeader.mmXWAVHeader.WAVEHeader.usChannels == 2 )
{
/*
* Selected file is using both the channel. Select the "Stereo" menu
* option. Disable the "Mono" menu option.
*/
SelectTheOption( IDM_STEREO );
DisableTheOption( hwndMenu, IDM_MONO );
}
if (mmAudioHeader.mmXWAVHeader.WAVEHeader.ulSamplesPerSec == 11025)
{
/*
* Selected file sampling rate is 11.025 kHz. Select "Voice (11 khz)"
* menu option. Disable the "Music (22 khz)" and
* "High fidelity (44 khz)" menu options.
*/
SelectTheOption( IDM_VOICE );
DisableTheOption( hwndMenu, IDM_MUSIC );
DisableTheOption( hwndMenu, IDM_HIGH_FIDELITY );
}
else
if (mmAudioHeader.mmXWAVHeader.WAVEHeader.ulSamplesPerSec == 22050)
{
/*
* Selected file sampling rate is 22.050 kHz. Select "Music (22 khz)"
* menu option. Disable the "Voice (11 khz)" and
* "High fidelity (44 khz)" menu options.
*/
SelectTheOption( IDM_MUSIC );
DisableTheOption( hwndMenu, IDM_VOICE );
DisableTheOption( hwndMenu, IDM_HIGH_FIDELITY );
}
else
if (mmAudioHeader.mmXWAVHeader.WAVEHeader.ulSamplesPerSec == 44100)
{
/*
* Selected file sampling rate is 44.100 kHz. Select "High fidelity
* 44 khz" menu option. Disable the "Voice (11 khz)" and
* "Music (22 khz)" menu options.
*/
SelectTheOption( IDM_HIGH_FIDELITY );
DisableTheOption( hwndMenu, IDM_VOICE );
DisableTheOption( hwndMenu, IDM_MUSIC );
}
if (mmAudioHeader.mmXWAVHeader.WAVEHeader.usBitsPerSample == 8)
{
/*
* Selected file bits per sample is 8. Select "Low quality (8-bit)"
* menu option. Disable the "High quality (16-bit)" menu option.
*/
SelectTheOption( IDM_LOW_QUALITY );
DisableTheOption( hwndMenu, IDM_HIGH_QUALITY );
}
else
if (mmAudioHeader.mmXWAVHeader.WAVEHeader.usBitsPerSample == 16)
{
/*
* Selected file bits per sample is 16. Select "High quality (16-bit)"
* menu option. Disable the "Low quality (8-bit)" menu option.
*/
SelectTheOption( IDM_HIGH_QUALITY );
DisableTheOption( hwndMenu, IDM_LOW_QUALITY );
}
}
else
{
/*
* Selected file is a NEW file. Select all the default menu options.
*/
SelectTheOption( IDM_STEREO );
SelectTheOption( IDM_MUSIC );
SelectTheOption( IDM_LOW_QUALITY );
}
mmioClose( hmmio, 0 );
return( TRUE );
} /* end GetHeader() */
/******************************************************************************
* Name : AdjustTheDlg
*
* Description : This fuction adjusts the main dialog window whenever the
* status line is added or deleted.
*
* Concepts :
*
* MMPM/2 API's : none
*
* Parameters : fShow - flag for selection/deselection of the Status line.
*
* Return : none
*
******************************************************************************/
VOID AdjustTheDlg( HWND hwnd, BOOL fShow )
{
SWP swpFrame; /* frame window positioning. */
SWP swpDefault; /* default window positioning. */
SWP swpDialog; /* dialog window positioning. */
SWP swpStatus; /* status line window positioning. */
static ULONG ulcyDialog = 0 ; /* height of the dialog window. */
BOOL fAtDefaultSize = FALSE ; /* flag to determine the size of the window*/
/*
* Get the current frame window and the default frame window sizes.
*/
WinQueryWindowPos( hwndFrame, &swpFrame ) ;
WinQueryDefaultSize( hwndFrame, &swpDefault ) ;
/*
* Set the flag to determine whether we were at the default size.
*/
if (swpFrame.cx==swpDefault.cx && swpFrame.cy==swpDefault.cy)
{
fAtDefaultSize = TRUE ;
}
/*
* Query the window size and position of the Dialog window.
*/
WinQueryWindowPos( hwnd, &swpDialog ) ;
/*
* Save the current height of the Dialog window for further use.
*/
if (!ulcyDialog)
{
ulcyDialog = swpDialog.cy ;
}
/*
* Check to see the user selecting or deselecting the "Show status line"
* option.
*/
if (fShow)
{
/*
* Status line is desired, raise dialog window height to ensure status
* is visible
*/
swpDialog.cy = ulcyDialog ;
}
else
{
/*
* Status line is not desired, query the size and position of the
* "status text line" and lower dialog height to hide status line.
*/
WinQueryWindowPos(
WinWindowFromID(
hwnd, /* Dialog window handle */
ID_STATUSTXT), /* Status text ID */
&swpStatus ); /* Return status text data */
swpDialog.cy = swpStatus.y ;
}
/*
* Set the positioning of the Dialog window.
*/
WinSetWindowPos(
hwnd, /* Dialog window handle */
0L, /* Place hwnd on top of all siblings */
0L, /* Window position, x coordinate */
0L, /* Window position, y coordinate */
swpDialog.cx, /* New window size */
swpDialog.cy, /* New window size */
SWP_SIZE ) ; /* Window positioning options */
if (fAtDefaultSize)
{
/*
* Current window is at default size. Repaint the window with new
* window size.
*/
WinDefaultSize(hwnd) ;
}
else
{
/*
* Current window is NOT at default size. Just update the window to
* hide the status line.
*/
WinUpdateWindow(hwnd);
}
} /* End AdjustTheDlg() */
/******************************************************************************
* Name : UpdateTheStatusLine
*
* Description : This function update the status line text.
*
* Concepts : none
*
* MMPM/2 API's : none
*
* Parameters : hwnd - Handle for the dialog window.
* usStatus - Status line text to display.
*
* Return : none
*
******************************************************************************/
VOID UpdateTheStatusLine( HWND hwnd, USHORT usStatus )
{
CHAR szStatus[50]; /* to store string from the resource. */
CHAR szTemp[50]; /* to store string from the resource. */
extern BOOL fPassedDevice; /* for MCI_ACQUIRE to play the file. */
/*
* Get the appropriate string from the Resource string table.
*/
WinLoadString( hab, (HMODULE)NULL, usStatus, sizeof(szStatus), szStatus );
/*
* If lost the device, inform the user by appending "Suspended" to the
* current string.
*/
if ( fPassedDevice )
{
/*
* Get the "Suspended" string from the Resource string table.
*/
WinLoadString( hab, (HMODULE)NULL, IDS_PASSED, sizeof(szTemp), szTemp );
strcat( szStatus, ", "); /* append ", " to the status */
strcat( szStatus, szTemp ); /* Append "Suspended" at the end. */
}
/*
* Update the status line.
*/
WinSetWindowText (WinWindowFromID (hwnd, ID_STATUSTXT), szStatus);
} /* End if status line should be shown */