Source code of Windows XP (NT5)
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9.8 KiB

/*****************************************************************************
*
* Component: sndvol32.exe
* File: utils.c
* Purpose: miscellaneous
*
* Copyright (c) 1985-1999 Microsoft Corporation
*
*****************************************************************************/
#include <windows.h>
#include <windowsx.h>
#include <mmsystem.h>
#include "volumei.h"
#include "volids.h"
#include "mmddkp.h"
/* misc. */
const TCHAR gszStateSubkey[] = TEXT ("%s\\%s");
static TCHAR gszAppName[256];
BOOL Volume_ErrorMessageBox(
HWND hwnd,
HINSTANCE hInst,
UINT id)
{
TCHAR szMessage[256];
BOOL fRet;
szMessage[0] = 0;
if (!gszAppName[0])
LoadString(hInst, IDS_APPBASE, gszAppName, SIZEOF(gszAppName));
LoadString(hInst, id, szMessage, SIZEOF(szMessage));
fRet = (MessageBox(hwnd
, szMessage
, gszAppName
, MB_APPLMODAL | MB_ICONINFORMATION
| MB_OK | MB_SETFOREGROUND) == MB_OK);
return fRet;
}
const TCHAR aszXPos[] = TEXT ("X");
const TCHAR aszYPos[] = TEXT ("Y");
const TCHAR aszLineInfo[] = TEXT ("LineStates");
///////////////////////////////////////////////////////////////////////////////////////////
// Microsoft Confidential - DO NOT COPY THIS METHOD INTO ANY APPLICATION, THIS MEANS YOU!!!
///////////////////////////////////////////////////////////////////////////////////////////
DWORD GetWaveOutID(BOOL *pfPreferred)
{
MMRESULT mmr;
DWORD dwWaveID=0;
DWORD dwFlags = 0;
if (pfPreferred)
{
*pfPreferred = TRUE;
}
mmr = waveOutMessage((HWAVEOUT)UIntToPtr(WAVE_MAPPER), DRVM_MAPPER_PREFERRED_GET, (DWORD_PTR) &dwWaveID, (DWORD_PTR) &dwFlags);
if (!mmr && pfPreferred)
{
*pfPreferred = dwFlags & 0x00000001;
}
return(dwWaveID);
}
///////////////////////////////////////////////////////////////////////////////////////////
// Microsoft Confidential - DO NOT COPY THIS METHOD INTO ANY APPLICATION, THIS MEANS YOU!!!
///////////////////////////////////////////////////////////////////////////////////////////
DWORD GetWaveInID(BOOL *pfPreferred)
{
MMRESULT mmr;
DWORD dwWaveID=0;
DWORD dwFlags = 0;
if (pfPreferred)
{
*pfPreferred = TRUE;
}
mmr = waveInMessage((HWAVEIN)UIntToPtr(WAVE_MAPPER), DRVM_MAPPER_PREFERRED_GET, (DWORD_PTR) &dwWaveID, (DWORD_PTR) &dwFlags);
if (!mmr && pfPreferred)
{
*pfPreferred = dwFlags & 0x00000001;
}
return(dwWaveID);
}
/*
* Volume_GetDefaultMixerID
*
* Get the default mixer id. We only appear if there is a mixer associated
* with the default wave.
*
*/
MMRESULT Volume_GetDefaultMixerID(
int *pid,
BOOL fRecord)
{
MMRESULT mmr;
UINT u, uMxID;
BOOL fPreferredOnly = 0;
*pid = 0;
mmr = MMSYSERR_ERROR;
//
// We use messages to the Wave Mapper in Win2K to get the preferred device.
//
if (fRecord)
{
if(waveInGetNumDevs())
{
u = GetWaveInID(&fPreferredOnly);
// Can we get a mixer device ID from the wave device?
mmr = mixerGetID((HMIXEROBJ)UIntToPtr(u), &uMxID, MIXER_OBJECTF_WAVEIN);
if (mmr == MMSYSERR_NOERROR)
{
// Return this ID.
*pid = uMxID;
}
}
}
else
{
if(waveOutGetNumDevs())
{
u = GetWaveOutID(&fPreferredOnly);
// Can we get a mixer device ID from the wave device?
mmr = mixerGetID((HMIXEROBJ)UIntToPtr(u), &uMxID, MIXER_OBJECTF_WAVEOUT);
if (mmr == MMSYSERR_NOERROR)
{
// Return this ID.
*pid = uMxID;
}
}
}
return mmr;
}
const TCHAR aszOptionsSection[] = TEXT ("Options");
/*
* Volume_GetSetStyle
*
* */
void Volume_GetSetStyle(
DWORD *pdwStyle,
BOOL Get)
{
const TCHAR aszStyle[] = TEXT ("Style");
if (Get)
ReadRegistryData((LPTSTR)aszOptionsSection
, (LPTSTR)aszStyle
, NULL
, (LPBYTE)pdwStyle
, sizeof(DWORD));
else
WriteRegistryData((LPTSTR)aszOptionsSection
, (LPTSTR)aszStyle
, REG_DWORD
, (LPBYTE)pdwStyle
, sizeof(DWORD));
}
/*
* Volume_GetTrayTimeout
*
* */
DWORD Volume_GetTrayTimeout(
DWORD dwTimeout)
{
const TCHAR aszTrayTimeout[] = TEXT ("TrayTimeout");
DWORD dwT = dwTimeout;
ReadRegistryData(NULL
, (LPTSTR)aszTrayTimeout
, NULL
, (LPBYTE)&dwT
, sizeof(DWORD));
return dwT;
}
/*
* Volume_GetSetRegistryLineStates
*
* Get/Set line states s.t. lines can be disabled if not used.
*
* */
struct LINESTATE {
DWORD dwSupport;
TCHAR szName[MIXER_LONG_NAME_CHARS];
};
#define VCD_STATEMASK (VCD_SUPPORTF_VISIBLE|VCD_SUPPORTF_HIDDEN)
BOOL Volume_GetSetRegistryLineStates(
LPTSTR pszMixer,
LPTSTR pszDest,
PVOLCTRLDESC avcd,
DWORD cvcd,
BOOL Get)
{
struct LINESTATE * pls;
DWORD ils, cls;
TCHAR achEntry[128];
if (cvcd == 0)
return TRUE;
wsprintf(achEntry, gszStateSubkey, pszMixer, pszDest);
if (Get)
{
UINT cb;
if (QueryRegistryDataSize((LPTSTR)achEntry
, (LPTSTR)aszLineInfo
, &cb) != NO_ERROR)
return FALSE;
pls = (struct LINESTATE *)GlobalAllocPtr(GHND, cb);
if (!pls)
return FALSE;
if (ReadRegistryData((LPTSTR)achEntry
, (LPTSTR)aszLineInfo
, NULL
, (LPBYTE)pls
, cb) != NO_ERROR)
{
GlobalFreePtr(pls);
return FALSE;
}
cls = cb / sizeof(struct LINESTATE);
if (cls > cvcd)
cls = cvcd;
//
// Restore the hidden state of the line.
//
for (ils = 0; ils < cls; ils++)
{
if (lstrcmp(pls[ils].szName, avcd[ils].szName) == 0)
{
avcd[ils].dwSupport |= pls[ils].dwSupport;
}
}
GlobalFreePtr(pls);
}
else
{
pls = (struct LINESTATE *)GlobalAllocPtr(GHND, cvcd * sizeof (struct LINESTATE));
if (!pls)
return FALSE;
//
// Save the hidden state of the line
//
for (ils = 0; ils < cvcd; ils++)
{
lstrcpy(pls[ils].szName, avcd[ils].szName);
pls[ils].dwSupport = avcd[ils].dwSupport & VCD_SUPPORTF_HIDDEN;
}
if (WriteRegistryData((LPTSTR)achEntry
, (LPTSTR)aszLineInfo
, REG_BINARY
, (LPBYTE)pls
, cvcd*sizeof(struct LINESTATE)) != NO_ERROR)
{
GlobalFreePtr(pls);
return FALSE;
}
GlobalFreePtr(pls);
}
return TRUE;
}
/*
* Volume_GetSetRegistryRect
*
* Set/Get window position for restoring the postion of the app window
*
* */
BOOL Volume_GetSetRegistryRect(
LPTSTR szMixer,
LPTSTR szDest,
LPRECT prc,
BOOL Get)
{
TCHAR achEntry[128];
wsprintf(achEntry, gszStateSubkey, szMixer, szDest);
if (Get)
{
if (ReadRegistryData((LPTSTR)achEntry
, (LPTSTR)aszXPos
, NULL
, (LPBYTE)&prc->left
, sizeof(prc->left)) != NO_ERROR)
{
return FALSE;
}
if (ReadRegistryData((LPTSTR)achEntry
, (LPTSTR)aszYPos
, NULL
, (LPBYTE)&prc->top
, sizeof(prc->top)) != NO_ERROR)
{
return FALSE;
}
}
else
{
if (prc)
{
if (WriteRegistryData((LPTSTR)achEntry
, (LPTSTR)aszXPos
, REG_DWORD
, (LPBYTE)&prc->left
, sizeof(prc->left)) != NO_ERROR)
{
return FALSE;
}
if (WriteRegistryData((LPTSTR)achEntry
, (LPTSTR)aszYPos
, REG_DWORD
, (LPBYTE)&prc->top
, sizeof(prc->top)) != NO_ERROR)
{
return FALSE;
}
}
}
return TRUE;
}
#ifdef DEBUG
void FAR cdecl dprintfA(LPSTR szFormat, ...)
{
char ach[128];
int s,d;
va_list va;
va_start(va, szFormat);
s = wsprintf (ach,szFormat, va);
va_end(va);
for (d=sizeof(ach)-1; s>=0; s--)
{
if ((ach[d--] = ach[s]) == '\n')
ach[d--] = '\r';
}
OutputDebugStringA("SNDVOL32: ");
OutputDebugStringA(ach+d+1);
}
#ifdef UNICODE
void FAR cdecl dprintfW(LPWSTR szFormat, ...)
{
WCHAR ach[128];
int s,d;
va_list va;
va_start(va, szFormat);
s = vswprintf (ach,szFormat, va);
va_end(va);
for (d=(sizeof(ach)/sizeof(WCHAR))-1; s>=0; s--)
{
if ((ach[d--] = ach[s]) == TEXT('\n'))
ach[d--] = TEXT('\r');
}
OutputDebugStringW(TEXT("SNDVOL32: "));
OutputDebugStringW(ach+d+1);
}
#endif
#endif