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windows-nt/Source/XPSP1/NT/multimedia/media/mciwave/config.c

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2020-09-26 03:20:57 -05:00
/************************************************************************/
/*
** Copyright (c) 1985-1998 Microsoft Corporation
**
** Title: config.c - Multimedia Systems Media Control Interface
** waveform audio driver for RIFF wave files.
**
** Version: 1.00
**
** Date: 18-Apr-1990
**
** Author: ROBWI
*/
/************************************************************************/
/*
** Change log:
**
** DATE REV DESCRIPTION
** ----------- ----- ------------------------------------------
** 10-Jan-1992 MikeTri Ported to NT
** @@@ need to change slash slash comments to slash star
*/
/************************************************************************/
#define UNICODE
#define NOGDICAPMASKS
#define NOVIRTUALKEYCODES
#define NOWINSTYLES
#define NOSYSMETRICS
#define NOMENUS
#define NOICONS
#define NOKEYSTATES
#define NOSYSCOMMANDS
#define NORASTEROPS
#define NOSHOWWINDOW
#define OEMRESOURCE
#define NOATOM
#define NOCLIPBOARD
#define NOCOLOR
#define NODRAWTEXT
#define NOGDI
#define NOKERNEL
#define NONLS
#define NOMB
#define NOMEMMGR
#define NOMETAFILE
#define NOOPENFILE
#define NOTEXTMETRIC
#define NOWH
#define NOWINOFFSETS
#define NOCOMM
#define NOKANJI
#define NOPROFILER
#define NODEFERWINDOWPOS
#define NOMMDRV
#define MMNOMMIO
#define MMNOJOY
#define MMNOTIMER
#define MMNOAUX
#define MMNOMIDI
#define MMNOWAVE
#include <windows.h>
#include "mciwave.h"
#include <mmddk.h>
#include "config.h"
#include <mcihlpid.h>
/************************************************************************/
#define MAXINIDRIVER 132
PRIVATE SZCODE aszNULL[] = L"";
PRIVATE SZCODE aszSystemIni[] = L"system.ini";
PRIVATE WCHAR aszWordFormat[] = L"%u";
PRIVATE WCHAR aszTailWordFormat[] = L" %u";
const static DWORD aHelpIds[] = { // Context Help IDs
IDSCROLL, IDH_MCI_WAVEFORM_DRIVER,
(DWORD)-1, IDH_MCI_WAVEFORM_DRIVER,
IDCOUNT, IDH_MCI_WAVEFORM_DRIVER,
0, 0
};
const static TCHAR cszHelpFile[] = TEXT("MMDRV.HLP");
/************************************************************************/
/*
@doc INTERNAL MCIWAVE
@func SSZ | GetTail |
This function returns a pointer into the given string at the
first non-blank character after the current word. If it fails to find
a second word, a pointer to the terminating NULL character is returned.
@parm SSZ | ssz |
Points to the string whose tail is to be returned.
@rdesc Returns a pointer into the string passed.
*/
PRIVATE SSZ PASCAL NEAR GetTail(
SSZ ssz)
{
while (*ssz && *ssz != ' ')
ssz++;
while (*ssz == ' ')
ssz++ ;
return ssz;
}
/************************************************************************/
/*
@doc INTERNAL MCIWAVE
@func UINT | GetCmdParm |
This function retrieves the current audio buffers parameter using
the INI strings contained in the configuration block. The audio
buffers parameter is a number included in the INI entry for this
driver as a parameter.
@parm <t>LPDRVCONFIGINFO<d> | lpdci |
Points to the driver configuration information passed to the
dialog creation function.
@rdesc Returns the current audio buffers.
*/
STATICFN UINT PASCAL NEAR GetCmdParm(
LPDRVCONFIGINFO lpdci)
{
WCHAR aszDriver[MAXINIDRIVER];
SSZ pszTail;
// Assume things will go wrong... initialise variables
pszTail = aszDriver;
if (GetPrivateProfileString( lpdci->lpszDCISectionName,
lpdci->lpszDCIAliasName,
aszNULL,
aszDriver,
sizeof(aszDriver) / sizeof(WCHAR),
aszSystemIni))
{
// We have got the name of the driver
// Just in case the user has added the command parameter to the
// end of the name we had better make sure there is only one token
// on the line.
WCHAR parameters[6];
LPWSTR pszDefault;
pszTail = GetTail((SSZ)aszDriver);
pszDefault = pszTail; // Either the number on the end, or NULL
if (*pszTail) {
// RATS!! Not a simple name
while (*--pszTail == L' ') {
}
*++pszTail = L'\0'; // Terminate the string after the DLL name
}
if (GetProfileString(aszDriver, lpdci->lpszDCIAliasName, pszDefault, parameters, sizeof(parameters)/sizeof(WCHAR))) {
pszTail = parameters;
}
} else {
aszDriver[0] = L'\0';
}
return(GetAudioSeconds(pszTail));
}
/************************************************************************/
/*
@doc INTERNAL MCIWAVE
@func UINT | PutCmdParm |
This function saves the current audio buffers parameter using
the INI strings contained in the configuration block.
@parm <t>LPDRVCONFIGINFO<d> | lpdci |
Points to the driver configuration information passed to the
dialog creation function.
@parm UINT | wSeconds |
Contains the audio buffer seconds parameter to save.
@rdesc Nothing.
*/
PRIVATE VOID PASCAL NEAR PutCmdParm(
LPDRVCONFIGINFO lpdci,
UINT wSeconds)
{
WCHAR aszDriver[MAXINIDRIVER];
SSZ sszDriverTail;
if (GetPrivateProfileString( lpdci->lpszDCISectionName,
lpdci->lpszDCIAliasName,
aszNULL,
aszDriver,
(sizeof(aszDriver) / sizeof(WCHAR)) - 6,
aszSystemIni)) {
WCHAR parameters[10];
// There might be a command parameter on the end of the DLL name.
// Ensure we only have the first token
sszDriverTail = GetTail((SSZ)aszDriver);
if (*sszDriverTail) {
// RATS!! Not a simple name
while (*--sszDriverTail == L' ') {
}
*++sszDriverTail = L'\0'; // Terminate the string after the DLL name
}
wsprintfW(parameters, aszWordFormat, wSeconds);
WriteProfileString(aszDriver, lpdci->lpszDCIAliasName, parameters);
}
}
/************************************************************************/
/*
@doc INTERNAL MCIWAVE
@func BOOL | ConfigDlgProc |
This function is the message handle for the driver configuration
window.
@parm HWND | hwndDlg |
Window handle to the dialog.
@parm UINT | wMsg |
Current message being sent.
@flag WM_INITDIALOG |
During dialog initialization, the pointer to the configuration
parameter block is saved to a static pointer. Note that there should
only be a single instance of this dialog box at any one time. The
current audio dialog buffer seconds is set from the INI file entry.
@flag WM_HSCROLL |
This responds to the scroll bar by changing the currently displayed
value of audio seconds and updating the scroll bar thumb. To look
nice, the count and scroll bar are only updated if the value actually
changes. Note that the error return for GetDlgItemInt is not checked
because it is initially set to an integer value, so it is always
valid.
@flag WM_CLOSE |
If the close box is used, cancel the dialog, returning DRVCNF_CANCEL.
@flag WM_COMMAND |
If the message is being sent on behalf of the OK button, the current
audio seconds value is saved, and the dialog is terminated, returning
the DRVCNF_OK value to the driver entry. Note that the error return for
GetDlgItemInt is not checked because it is initially set to an integer
value, so it is always valid. If the message is being sent on behalf
of the Cancel button, the dialog is terminated returning the
DRVCNF_CANCEL value.
@parm WPARAM | wParam |
Message parameter.
@parm LPARAM | lParam |
Message parameter.
@rdesc Depends on the message sent.
*/
PUBLIC INT_PTR PASCAL ConfigDlgProc(
HWND hwndDlg,
UINT wMsg,
WPARAM wParam,
LPARAM lParam)
{
UINT wSeconds;
UINT wNewSeconds;
BOOL fTranslated;
HWND hwndItem;
static LPDRVCONFIGINFO lpdci;
switch (wMsg) {
case WM_INITDIALOG:
lpdci = (LPDRVCONFIGINFO)lParam;
wSeconds = GetCmdParm(lpdci);
hwndItem = GetDlgItem(hwndDlg, IDSCROLL);
SetScrollRange(hwndItem, SB_CTL, MinAudioSeconds, MaxAudioSeconds, FALSE);
SetScrollPos(hwndItem, SB_CTL, wSeconds, FALSE);
SetDlgItemInt(hwndDlg, IDCOUNT, wSeconds, FALSE);
break;
case WM_HSCROLL:
wSeconds = GetDlgItemInt(hwndDlg, IDCOUNT, &fTranslated, FALSE);
hwndItem = (HWND)lParam;
switch (LOWORD(wParam)) {
case SB_PAGEDOWN:
case SB_LINEDOWN:
wNewSeconds = min(MaxAudioSeconds, wSeconds + 1);
break;
case SB_PAGEUP:
case SB_LINEUP:
wNewSeconds = max(MinAudioSeconds, wSeconds - 1);
break;
case SB_TOP:
wNewSeconds = MinAudioSeconds;
break;
case SB_BOTTOM:
wNewSeconds = MaxAudioSeconds;
break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
wNewSeconds = HIWORD(wParam);
break;
default:
return FALSE;
}
if (wNewSeconds != wSeconds) {
SetScrollPos(hwndItem, SB_CTL, wNewSeconds, TRUE);
SetDlgItemInt(hwndDlg, IDCOUNT, wNewSeconds, FALSE);
}
break;
case WM_CLOSE:
EndDialog(hwndDlg, DRVCNF_CANCEL);
break;
case WM_CONTEXTMENU:
WinHelp ((HWND)wParam, cszHelpFile, HELP_CONTEXTMENU, (ULONG_PTR)aHelpIds);
return TRUE;
case WM_HELP:
{
LPHELPINFO lphi = (LPVOID) lParam;
WinHelp (lphi->hItemHandle, cszHelpFile, HELP_WM_HELP, (ULONG_PTR)aHelpIds);
return TRUE;
}
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDOK:
PutCmdParm(lpdci, GetDlgItemInt(hwndDlg, IDCOUNT, &fTranslated, FALSE));
EndDialog(hwndDlg, DRVCNF_OK);
break;
case IDCANCEL:
EndDialog(hwndDlg, DRVCNF_CANCEL);
break;
}
break;
default:
return FALSE;
}
return TRUE;
}
/************************************************************************/
/*
@doc INTERNAL MCIWAVE
@func int | Config |
This function creates the configuration dialog, and returns the
value from dialog box call.
@parm HWND | hwnd |
Contains the handle of what is to be the parent of the dialog.
@parm <t>LPDRVCONFIGINFO<d> | lpdci |
Points to the driver configuration information passed to the
configuration message.
@parm HINSTANCE | hInstance |
Contains a handle to the module in which the dialog is stored.
@rdesc Returns the dialog box call function return.
*/
PUBLIC INT_PTR PASCAL FAR Config(
HWND hwnd,
LPDRVCONFIGINFO lpdci,
HINSTANCE hInstance)
{
return DialogBoxParam(hInstance, MAKEINTRESOURCE(IDD_CONFIG), hwnd, ConfigDlgProc, (LPARAM)lpdci);
}
/************************************************************************/

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