430 lines
14 KiB
C++
430 lines
14 KiB
C++
|
/********************************************************************************
|
||
|
|
** Copyright (c) 2000 Microsoft Corporation. All Rights Reserved.
|
||
|
|
********************************************************************************/
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
#include <cpl.h>
|
||
|
|
#include <ks.h>
|
||
|
|
#include <ksmedia.h>
|
||
|
|
#include <setupapi.h>
|
||
|
|
#include "resource.h"
|
||
|
|
#include "prvprop.h"
|
||
|
|
|
||
|
|
//
|
||
|
|
// Global Variables.
|
||
|
|
//
|
||
|
|
HINSTANCE ghInstance = NULL; // module handle.
|
||
|
|
const TCHAR AppletName[] = TEXT("AC97 control panel");
|
||
|
|
|
||
|
|
|
||
|
|
#if (DBG)
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// dbgError
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// This function prints an error message.
|
||
|
|
// It prints first the string passed and then the error that it gets with
|
||
|
|
// GetLastError as a string.
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// szMsg - message to print.
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
// None.
|
||
|
|
//
|
||
|
|
void dbgError (LPCTSTR szMsg)
|
||
|
|
{
|
||
|
|
LPTSTR errorMessage;
|
||
|
|
DWORD count;
|
||
|
|
|
||
|
|
// Get the error message from the system.
|
||
|
|
count = FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER |
|
||
|
|
FORMAT_MESSAGE_FROM_SYSTEM |
|
||
|
|
FORMAT_MESSAGE_IGNORE_INSERTS,
|
||
|
|
NULL,
|
||
|
|
GetLastError (),
|
||
|
|
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
|
||
|
|
(LPTSTR)&errorMessage,
|
||
|
|
0,
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
// Print the msg + error + \n\r.
|
||
|
|
if (count)
|
||
|
|
{
|
||
|
|
OutputDebugString (szMsg);
|
||
|
|
OutputDebugString (errorMessage);
|
||
|
|
OutputDebugString (TEXT("\n\r"));
|
||
|
|
|
||
|
|
// This is for those without a debugger.
|
||
|
|
// MessageBox (NULL, szErrorMessage, szMsg, MB_OK | MB_ICONSTOP);
|
||
|
|
|
||
|
|
LocalFree (errorMessage);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
OutputDebugString (AppletName);
|
||
|
|
OutputDebugString (TEXT(": Low memory condition. Cannot ")
|
||
|
|
TEXT("print error message.\n\r"));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
#define dbgError(a) 0;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// DllMain
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// Main enty point of the DLL.
|
||
|
|
// Save the instance handle; it is needed for property sheet creation.
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// hModule - instance data, is equal to module handle
|
||
|
|
// ul_reason_for_call - the reason for the call
|
||
|
|
// lpReserved - some additional parameter.
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
// BOOL: FALSE if DLL should fail, TRUE on success
|
||
|
|
//
|
||
|
|
BOOL APIENTRY DllMain (HANDLE hModule, ULONG ul_reason_for_call, LPVOID lpReserved)
|
||
|
|
{
|
||
|
|
ghInstance = (HINSTANCE) hModule;
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// FindAC97Device
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// This function stores the device info and device data of the "ac97smpl" driver.
|
||
|
|
// It first creates a list of all devices that have a topology filter exposed
|
||
|
|
// and then searches through the list to find the device with the service
|
||
|
|
// "ac97smpl". The information is stored in pspRequest.
|
||
|
|
//
|
||
|
|
// For simplicity we search for the service name "ac97smpl".
|
||
|
|
// Alternately, one could get more information about the device or driver,
|
||
|
|
// then decide if it is suitable (regardless of its name).
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// pspRequest pointer to Property sheet page request structure.
|
||
|
|
// DeviceInfoData pointer to Device info data structure.
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
// TRUE on success, otherwise FALSE.
|
||
|
|
// Note: on success that we have the device list still open - we have to destroy
|
||
|
|
// the list later. The handle is stored at pspRequest->DeviceInfoSet.
|
||
|
|
//
|
||
|
|
BOOL FindAC97Device (PSP_PROPSHEETPAGE_REQUEST pspRequest,
|
||
|
|
PSP_DEVINFO_DATA DeviceInfoData)
|
||
|
|
{
|
||
|
|
TCHAR szServiceName[128];
|
||
|
|
|
||
|
|
//
|
||
|
|
// Prepare the pspRequest structure...
|
||
|
|
//
|
||
|
|
pspRequest->cbSize = sizeof (SP_PROPSHEETPAGE_REQUEST);
|
||
|
|
pspRequest->DeviceInfoData = DeviceInfoData;
|
||
|
|
pspRequest->PageRequested = SPPSR_ENUM_ADV_DEVICE_PROPERTIES;
|
||
|
|
|
||
|
|
// ...and the DeviceInfoData structure.
|
||
|
|
DeviceInfoData->cbSize = sizeof (SP_DEVINFO_DATA);
|
||
|
|
|
||
|
|
// Create a list of devices with Topology interface.
|
||
|
|
pspRequest->DeviceInfoSet = SetupDiGetClassDevs (&KSCATEGORY_TOPOLOGY,
|
||
|
|
NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
|
||
|
|
|
||
|
|
// None found?
|
||
|
|
if (pspRequest->DeviceInfoSet == INVALID_HANDLE_VALUE)
|
||
|
|
{
|
||
|
|
dbgError (TEXT("Test: SetupDiGetClassDevs: "));
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Go through the list of all devices found.
|
||
|
|
//
|
||
|
|
int nIndex = 0;
|
||
|
|
|
||
|
|
while (SetupDiEnumDeviceInfo (pspRequest->DeviceInfoSet, nIndex, DeviceInfoData))
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Get the service name for that device.
|
||
|
|
//
|
||
|
|
if (!SetupDiGetDeviceRegistryProperty (pspRequest->DeviceInfoSet, DeviceInfoData,
|
||
|
|
SPDRP_SERVICE, NULL, (PBYTE)szServiceName,
|
||
|
|
sizeof (szServiceName), NULL))
|
||
|
|
{
|
||
|
|
dbgError (TEXT("Test: SetupDiGetDeviceRegistryProperty: "));
|
||
|
|
SetupDiDestroyDeviceInfoList (pspRequest->DeviceInfoSet);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// We only care about service "ac97smpl"
|
||
|
|
//
|
||
|
|
DWORD lcid = MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT);
|
||
|
|
if (CompareString (lcid, NORM_IGNORECASE, szServiceName,
|
||
|
|
-1, TEXT("AC97SMPL"), -1) == CSTR_EQUAL)
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// We found it! The information is already stored, just return.
|
||
|
|
// Note that we have the device list still open - we have to destroy
|
||
|
|
// the list later.
|
||
|
|
//
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Take the next in the list.
|
||
|
|
nIndex++;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// We did not find the service.
|
||
|
|
//
|
||
|
|
SetupDiDestroyDeviceInfoList (pspRequest->DeviceInfoSet);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// AddPropSheet
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// This function is a callback that is passed to the "AC97PropPageProvider"
|
||
|
|
// function of "ac97prop.dll". It is used to add the property page sheet
|
||
|
|
// to the property dialog.
|
||
|
|
// What we do here is store the property sheet handle and return.
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// hPSP property sheet handle
|
||
|
|
// lParam parameter that we passed to "AC97PropPageProvider".
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
// TRUE on success, otherwise FALSE.
|
||
|
|
//
|
||
|
|
BOOL APIENTRY AddPropSheet (HPROPSHEETPAGE hPSP, LPARAM lParam)
|
||
|
|
{
|
||
|
|
HPROPSHEETPAGE **pphPropSheet = (HPROPSHEETPAGE **)lParam;
|
||
|
|
HPROPSHEETPAGE *phPropSheetPage;
|
||
|
|
|
||
|
|
// Check the parameters
|
||
|
|
if (!pphPropSheet)
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
// Allocate the space for the handle.
|
||
|
|
phPropSheetPage = (HPROPSHEETPAGE *)LocalAlloc (LPTR, sizeof(HPROPSHEETPAGE));
|
||
|
|
if (!phPropSheetPage)
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
*phPropSheetPage = hPSP;
|
||
|
|
*pphPropSheet = phPropSheetPage;
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// GetDLLInfo
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// This function loads the library and gets the entry point address.
|
||
|
|
// With the information returned we can create the property dialog.
|
||
|
|
//
|
||
|
|
// For simplicity reasons we load the DLL "ac97prop" and call the function
|
||
|
|
// "AC97PropPageProvider". A more flexible course of action is to get this
|
||
|
|
// information from the registry. To do this, we read the "EnumPropPages32"
|
||
|
|
// entry in the drivers section to obtain a registry path (read the "drivers"
|
||
|
|
// entry in the device section to get the registry path of the drivers section)
|
||
|
|
// -- this path leads to a key and entry which specifies the DLL and entry point.
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// *phDLL pointer to module handle of loaded DLL.
|
||
|
|
// *pAC97PropPageProvider pointer to "AC97PropPageProvider" in loaded DLL
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
// TRUE on success, otherwise FALSE.
|
||
|
|
// Note: on success the library is still loaded.
|
||
|
|
//
|
||
|
|
BOOL GetDLLInfo (HMODULE *phDLL, LPFNADDPROPSHEETPAGES *pAC97PropPageProvider)
|
||
|
|
{
|
||
|
|
// Load the library.
|
||
|
|
*phDLL = LoadLibrary (TEXT("ac97prop.dll"));
|
||
|
|
if (!*phDLL)
|
||
|
|
{
|
||
|
|
dbgError (TEXT("DisplayPropertySheet: LoadLibrary"));
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get the address of the function.
|
||
|
|
*pAC97PropPageProvider = (LPFNADDPROPSHEETPAGES)GetProcAddress (*phDLL,
|
||
|
|
"AC97PropPageProvider");
|
||
|
|
if (!*pAC97PropPageProvider)
|
||
|
|
{
|
||
|
|
dbgError (TEXT("DisplayPropertySheet: GetProcAddress"));
|
||
|
|
FreeLibrary (*phDLL);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// DisplayPropertySheet
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// This function displays the property dialog.
|
||
|
|
// It is called by CPlApplet when the ac97cpl icon gets a double click.
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// hWnd parent window handle
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
// None.
|
||
|
|
//
|
||
|
|
void DisplayPropertySheet (HWND hWnd)
|
||
|
|
{
|
||
|
|
SP_PROPSHEETPAGE_REQUEST pspRequest; // structure passed to ac97prop
|
||
|
|
SP_DEVINFO_DATA DeviceInfoData; // pspRequest points to it.
|
||
|
|
HMODULE hDLL; // Module handle of library
|
||
|
|
LPFNADDPROPSHEETPAGES AC97PropPageProvider; // function to be called.
|
||
|
|
PROPSHEETHEADER psh;
|
||
|
|
|
||
|
|
|
||
|
|
// You could move this to CPL_INIT, then it would be called
|
||
|
|
// before the control panel window appears.
|
||
|
|
// In case of an failure the icon would not be displayed. In our sample
|
||
|
|
// however, the icon will be displayed and when the user clicks on it he
|
||
|
|
// gets the error message.
|
||
|
|
if (!FindAC97Device(&pspRequest, &DeviceInfoData))
|
||
|
|
{
|
||
|
|
MessageBox (hWnd, TEXT("You must install the ac97 sample driver."),
|
||
|
|
AppletName, MB_ICONSTOP | MB_OK);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Load the library and get the function pointer.
|
||
|
|
if (!GetDLLInfo (&hDLL, &AC97PropPageProvider))
|
||
|
|
{
|
||
|
|
MessageBox (hWnd, TEXT("The ac97 property page DLL could not load."),
|
||
|
|
AppletName, MB_ICONSTOP | MB_OK);
|
||
|
|
SetupDiDestroyDeviceInfoList (pspRequest.DeviceInfoSet);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Prepare the header for the property sheet.
|
||
|
|
//
|
||
|
|
psh.nStartPage = 0;
|
||
|
|
psh.dwSize = sizeof(psh);
|
||
|
|
psh.dwFlags = PSH_PROPTITLE | PSH_NOAPPLYNOW;
|
||
|
|
psh.hwndParent = hWnd;
|
||
|
|
psh.hInstance = ghInstance;
|
||
|
|
psh.pszIcon = NULL;
|
||
|
|
psh.pszCaption = MAKEINTRESOURCE(IDS_AC97CPL);
|
||
|
|
psh.nPages = 1;
|
||
|
|
|
||
|
|
// Call the function to request the property sheet page.
|
||
|
|
if (!(*AC97PropPageProvider) ((LPVOID)&pspRequest, AddPropSheet, (LPARAM)&psh.phpage))
|
||
|
|
{
|
||
|
|
MessageBox (hWnd, TEXT("\"AC97PropPageProvider\" had a failure."),
|
||
|
|
AppletName, MB_ICONSTOP | MB_OK);
|
||
|
|
FreeLibrary (hDLL);
|
||
|
|
SetupDiDestroyDeviceInfoList (pspRequest.DeviceInfoSet);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Create the dialog. The function returns when the dialog is closed.
|
||
|
|
if (PropertySheet (&psh) < 0)
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Dialog closed abnormally. This might be a system failure.
|
||
|
|
//
|
||
|
|
MessageBox (hWnd, TEXT("Please reinstall the ac97 sample driver."),
|
||
|
|
AppletName, MB_ICONSTOP | MB_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clean up.
|
||
|
|
FreeLibrary (hDLL);
|
||
|
|
LocalFree (psh.phpage);
|
||
|
|
SetupDiDestroyDeviceInfoList (pspRequest.DeviceInfoSet);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// CPlApplet
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// This function is called by the control panel manager. It is very similar to
|
||
|
|
// a Windows message handler (search for CplApplet in MSDN for description).
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// HWND hWnd Parent window handle
|
||
|
|
// UINT uMsg The message
|
||
|
|
// LPARAM lParam1 depends on message
|
||
|
|
// LPARAM lParam2 depends on message
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
// LONG (depends on message; in general 0 means failure).
|
||
|
|
//
|
||
|
|
LONG APIENTRY CPlApplet (HWND hWnd, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
|
||
|
|
{
|
||
|
|
switch (uMsg)
|
||
|
|
{
|
||
|
|
// Initialize. You can allocate memory here.
|
||
|
|
case CPL_INIT:
|
||
|
|
return TRUE;
|
||
|
|
|
||
|
|
// How many applets are in this DLL?
|
||
|
|
case CPL_GETCOUNT:
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
// Requesting information about the dialog box.
|
||
|
|
// lParam1 is the dialog box number (we have only one) and
|
||
|
|
// lParam2 is the pointer to a CPLINFO structure.
|
||
|
|
// There is no return value.
|
||
|
|
case CPL_INQUIRE:
|
||
|
|
{
|
||
|
|
UINT uAppNum = (UINT)lParam1;
|
||
|
|
LPCPLINFO pCplInfo = (LPCPLINFO)lParam2;
|
||
|
|
|
||
|
|
if (!pCplInfo)
|
||
|
|
return TRUE; // unsuccessful
|
||
|
|
|
||
|
|
if (uAppNum == 0) // first Applet?
|
||
|
|
{
|
||
|
|
pCplInfo->idIcon = IDI_AC97CPL;
|
||
|
|
pCplInfo->idName = IDS_AC97CPL;
|
||
|
|
pCplInfo->idInfo = IDS_AC97CPLINFO;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// This is basically the same as CPL_INQUIRE, but passes a pointer
|
||
|
|
// to a different structure.
|
||
|
|
// This function is called before CPL_INQUIRE and if we return zero
|
||
|
|
// here, then CPL_INQUIRE is called.
|
||
|
|
case CPL_NEWINQUIRE:
|
||
|
|
break;
|
||
|
|
|
||
|
|
// One of these messages are sent when we should display the dialog box.
|
||
|
|
// There is no return value.
|
||
|
|
// lParam1 is the dialog box number (we have only one)
|
||
|
|
case CPL_DBLCLK:
|
||
|
|
case CPL_STARTWPARMS:
|
||
|
|
{
|
||
|
|
UINT uAppNum = (UINT)lParam1;
|
||
|
|
|
||
|
|
if (uAppNum == 0) // first Applet?
|
||
|
|
DisplayPropertySheet (hWnd);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// We get unloaded in a second.
|
||
|
|
// There is no return value.
|
||
|
|
case CPL_EXIT:
|
||
|
|
break;
|
||
|
|
|
||
|
|
default: // Who knows?
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|