Source code of Windows XP (NT5)
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/*++
Copyright (C) 1997-1999 Microsoft Corporation
Module Name:
devpopg.cpp
Abstract:
This module implements CDevicePowerMgmtPage -- device power management
property page
Author:
William Hsieh (williamh) created
Revision History:
--*/
// devdrvpg.cpp : implementation file
//
#include "devmgr.h"
#include "devpopg.h"
extern "C" {
#include <initguid.h>
#include <wdmguid.h>
#include <devguid.h>
}
//
// help topic ids
//
const DWORD g_a15HelpIDs[]=
{
IDC_DEVPOWER_DESC, IDH_DISABLEHELP,
IDC_DEVPOWER_ICON, IDH_DISABLEHELP,
IDC_DEVPOWER_WAKEENABLE, IDH_DEVMGR_PWRMGR_WAKEENABLE,
IDC_DEVPOWER_MGMT_WAKEENABLE, IDH_DEVMGR_PWRMGR_MGMT_WAKEENABLE,
IDC_DEVPOWER_DEVICEENABLE, IDH_DEVMGR_PWRMGR_DEVICEENABLE,
IDC_DEVPOWER_MESSAGE, IDH_DISABLEHELP,
0,0
};
BOOL
CDevicePowerMgmtPage::OnInitDialog(
LPPROPSHEETPAGE ppsp
)
{
//
// Notify CPropSheetData about the page creation
// the controls will be initialize in UpdateControls virtual function.
//
m_pDevice->m_psd.PageCreateNotify(m_hDlg);
BOOLEAN Enabled;
//
// First see if the device is able to wake the system
//
if (m_poWakeEnable.Open(m_pDevice->GetDeviceID())) {
m_poWakeEnable.Get(Enabled);
::SendMessage(GetControl(IDC_DEVPOWER_WAKEENABLE), BM_SETCHECK,
Enabled ? BST_CHECKED : BST_UNCHECKED, 0);
EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), Enabled);
} else {
EnableWindow(GetControl(IDC_DEVPOWER_WAKEENABLE), FALSE);
ShowWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), FALSE);
}
//
// See if the device can be turned off to save power
//
if (m_poShutdownEnable.Open(m_pDevice->GetDeviceID())) {
m_poShutdownEnable.Get(Enabled);
::SendMessage(GetControl(IDC_DEVPOWER_DEVICEENABLE), BM_SETCHECK,
Enabled ? BST_CHECKED : BST_UNCHECKED, 0);
} else {
EnableWindow(GetControl(IDC_DEVPOWER_DEVICEENABLE), FALSE);
}
//
// Special network card code.
//
GUID ClassGuid;
m_pDevice->ClassGuid(ClassGuid);
if (IsEqualGUID(ClassGuid, GUID_DEVCLASS_NET)) {
if (m_poWakeMgmtEnable.Open(m_pDevice->GetDeviceID())) {
m_poWakeMgmtEnable.Get(Enabled);
::SendMessage(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), BM_SETCHECK,
Enabled ? BST_CHECKED : BST_UNCHECKED, 0);
}
//
// This is a special case for network class devices. Wake on Lan will
// only work if the device is enabled for power management. So, if the
// user unchecks the 'power manage this device' then we need to disable
// the WOL and management stations controls.
//
if (BST_CHECKED == ::SendMessage(GetControl(IDC_DEVPOWER_DEVICEENABLE),
BM_GETCHECK, 0, 0) ) {
if (m_poWakeEnable.IsOpened()) {
::EnableWindow(GetControl(IDC_DEVPOWER_WAKEENABLE), TRUE);
}
if (m_poWakeMgmtEnable.IsOpened()) {
//
// The 'allow management stations to bring the computer out of standby'
// option is only allowed if the 'Allow this device to bring the computer
// out of standby' option is checked.
//
if (m_poWakeEnable.IsOpened() &&
(BST_CHECKED == ::SendMessage(GetControl(IDC_DEVPOWER_WAKEENABLE),
BM_GETCHECK, 0, 0))) {
::EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), TRUE);
} else {
::EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), FALSE);
}
}
} else {
::EnableWindow(GetControl(IDC_DEVPOWER_WAKEENABLE), FALSE);
::EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), FALSE);
}
} else {
ShowWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), FALSE);
EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), FALSE);
}
return CPropSheetPage::OnInitDialog(ppsp);
}
BOOL
CDevicePowerMgmtPage::OnCommand(
WPARAM wParam,
LPARAM lParam
)
{
switch (LOWORD(wParam)) {
case IDC_DEVPOWER_WAKEENABLE:
if (BST_CHECKED == ::SendMessage(GetControl(IDC_DEVPOWER_WAKEENABLE),
BM_GETCHECK, 0, 0) ) {
::EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), TRUE);
} else {
::EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), FALSE);
}
break;
case IDC_DEVPOWER_DEVICEENABLE:
//
// This is a special case for network class devices. Wake on Lan will
// only work if the device is enabled for power management. So, if the
// user unchecks the 'power manage this device' then we need to disable
// the WOL and management stations controls.
//
GUID ClassGuid;
m_pDevice->ClassGuid(ClassGuid);
if (IsEqualGUID(ClassGuid, GUID_DEVCLASS_NET)) {
if (BST_CHECKED == ::SendMessage(GetControl(IDC_DEVPOWER_DEVICEENABLE),
BM_GETCHECK, 0, 0) ) {
if (m_poWakeEnable.IsOpened()) {
::EnableWindow(GetControl(IDC_DEVPOWER_WAKEENABLE), TRUE);
}
if (m_poWakeMgmtEnable.IsOpened()) {
//
// The 'allow management stations to bring the computer out of standby'
// option is only allowed if the 'Allow this device to bring the computer
// out of standby' option is checked.
//
if (m_poWakeEnable.IsOpened() &&
(BST_CHECKED == ::SendMessage(GetControl(IDC_DEVPOWER_WAKEENABLE),
BM_GETCHECK, 0, 0))) {
::EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), TRUE);
} else {
::EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), FALSE);
}
}
} else {
::EnableWindow(GetControl(IDC_DEVPOWER_WAKEENABLE), FALSE);
::EnableWindow(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE), FALSE);
}
}
break;
}
return FALSE;
}
//
// This function saves the settings(if any)
//
BOOL
CDevicePowerMgmtPage::OnApply()
{
BOOLEAN Enabled;
if (m_poWakeEnable.IsOpened() && IsWindowEnabled(GetControl(IDC_DEVPOWER_WAKEENABLE))) {
Enabled = BST_CHECKED == ::SendMessage(GetControl(IDC_DEVPOWER_WAKEENABLE),
BM_GETCHECK, 0, 0);
m_poWakeEnable.Set(Enabled);
}
if (m_poWakeMgmtEnable.IsOpened() && IsWindowEnabled(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE))) {
Enabled = BST_CHECKED == ::SendMessage(GetControl(IDC_DEVPOWER_MGMT_WAKEENABLE),
BM_GETCHECK, 0, 0);
m_poWakeMgmtEnable.Set(Enabled);
}
if (m_poShutdownEnable.IsOpened() && IsWindowEnabled(GetControl(IDC_DEVPOWER_DEVICEENABLE))) {
Enabled = BST_CHECKED == ::SendMessage(GetControl(IDC_DEVPOWER_DEVICEENABLE),
BM_GETCHECK, 0, 0);
m_poShutdownEnable.Set(Enabled);
}
return FALSE;
}
//
// This function refreshes every control in the dialog. It may be called
// when the dialog is being initialized
//
void
CDevicePowerMgmtPage::UpdateControls(
LPARAM lParam
)
{
if (lParam) {
m_pDevice = (CDevice*) lParam;
}
try {
//
// Calling PropertyChanged() will update the display name for the device. We need
// to do this in case a 3rd party property sheet did something that could change
// the device's display name.
//
m_pDevice->PropertyChanged();
HICON hIconOld;
m_IDCicon = IDC_DEVPOWER_ICON; // Save for cleanup in OnDestroy.
hIconOld = (HICON)SendDlgItemMessage(m_hDlg, IDC_DEVPOWER_ICON, STM_SETICON,
(WPARAM)(m_pDevice->LoadClassIcon()),
0
);
if (hIconOld) {
DestroyIcon(hIconOld);
}
SetDlgItemText(m_hDlg, IDC_DEVPOWER_DESC, m_pDevice->GetDisplayName());
//
// Get any power message that the class installer might want to display
//
SP_POWERMESSAGEWAKE_PARAMS pmp;
DWORD RequiredSize;
pmp.ClassInstallHeader.cbSize = sizeof(SP_CLASSINSTALL_HEADER);
pmp.ClassInstallHeader.InstallFunction = DIF_POWERMESSAGEWAKE;
pmp.PowerMessageWake[0] = TEXT('\0');
m_pDevice->m_pMachine->DiSetClassInstallParams(*m_pDevice,
&pmp.ClassInstallHeader,
sizeof(pmp)
);
//
// If the class installer returns NO_ERROR and there is text to display in the
// PowerMessageWake field of the SP_POWERMESSAGEWAKE_PARAMS structure then display
// the text.
//
if ((m_pDevice->m_pMachine->DiCallClassInstaller(DIF_POWERMESSAGEWAKE, *m_pDevice)) &&
(m_pDevice->m_pMachine->DiGetClassInstallParams(*m_pDevice,
&pmp.ClassInstallHeader,
sizeof(pmp),
&RequiredSize)) &&
(pmp.PowerMessageWake[0] != TEXT('\0'))) {
SetDlgItemText(m_hDlg, IDC_DEVPOWER_MESSAGE, pmp.PowerMessageWake);
}
} catch (CMemoryException* e) {
e->Delete();
// report memory error
MsgBoxParam(m_hDlg, 0, 0, 0);
}
}
BOOL
CDevicePowerMgmtPage::OnHelp(
LPHELPINFO pHelpInfo
)
{
WinHelp((HWND)pHelpInfo->hItemHandle, DEVMGR_HELP_FILE_NAME, HELP_WM_HELP,
(ULONG_PTR)g_a15HelpIDs);
return FALSE;
}
BOOL
CDevicePowerMgmtPage::OnContextMenu(
HWND hWnd,
WORD xPos,
WORD yPos
)
{
WinHelp(hWnd, DEVMGR_HELP_FILE_NAME, HELP_CONTEXTMENU,
(ULONG_PTR)g_a15HelpIDs);
return FALSE;
}
//
// This function enables/disables the device power capability
// INPUT:
// fEnable -- TRUE to enable
// -- FALSE to disable
// OUTPUT:
// TRUE if the state is set
// FALSE if the state is not set.
BOOL
CPowerEnable::Set(
BOOLEAN fEnable
)
{
if (IsOpened()) {
DWORD Error;
BOOLEAN fNewValue = fEnable;
Error = WmiSetSingleInstance(m_hWmiBlock, m_DevInstId, m_Version,
sizeof(fNewValue), &fNewValue);
//
// Get the value back to see if the change is really succeeded.
//
if (ERROR_SUCCESS == Error && Get(fNewValue) && fNewValue == fEnable) {
return TRUE;
}
}
return FALSE;
}
BOOL
CPowerEnable::Get(
BOOLEAN& fEnable
)
{
fEnable = FALSE;
if (IsOpened()) {
ULONG Size = m_WmiInstDataSize;
DWORD Error;
Error = WmiQuerySingleInstance(m_hWmiBlock, m_DevInstId, &Size, m_pWmiInstData);
if (ERROR_SUCCESS == Error && Size == m_WmiInstDataSize &&
m_DataBlockSize == ((PWNODE_SINGLE_INSTANCE)m_pWmiInstData)->SizeDataBlock &&
m_Version == ((PWNODE_SINGLE_INSTANCE)m_pWmiInstData)->WnodeHeader.Version) {
fEnable = *((BOOLEAN*)(m_pWmiInstData + ((PWNODE_SINGLE_INSTANCE)m_pWmiInstData)->DataBlockOffset));
return TRUE;
}
}
return FALSE;
}
//
// Function to open the wmi block.
// INPUT:
// DeviceId -- the device id
// OUTPUT:
// TRUE if the device can be turned off
// FALSE if the device can not be turned off.
BOOL
CPowerEnable::Open(
LPCTSTR DeviceId
)
{
if (!DeviceId) {
return FALSE;
}
//
// Do nothing if already opened
//
if (IsOpened()) {
return TRUE;
}
int len = lstrlen(DeviceId);
if (len >= ARRAYLEN(m_DevInstId) - 2) {
return FALSE;
}
WmiDevInstToInstanceName(m_DevInstId, len+3, (PTCHAR)DeviceId, 0);
ULONG Error;
Error = WmiOpenBlock(&m_wmiGuid, 0, &m_hWmiBlock);
if (ERROR_SUCCESS == Error) {
//
// Get the required block size.
//
ULONG BufferSize = 0;
Error = WmiQuerySingleInstance(m_hWmiBlock, m_DevInstId, &BufferSize, NULL);
if (BufferSize && Error == ERROR_INSUFFICIENT_BUFFER) {
//
// The device does support the GUID, remember the size
// and allocate a buffer to the data block.
//
m_WmiInstDataSize = BufferSize;
m_pWmiInstData = new BYTE[BufferSize];
if (m_pWmiInstData) {
Error = WmiQuerySingleInstance(m_hWmiBlock, m_DevInstId, &BufferSize, m_pWmiInstData);
} else {
Error = ERROR_NOT_ENOUGH_MEMORY;
}
if (ERROR_SUCCESS == Error &&
m_DataBlockSize == ((PWNODE_SINGLE_INSTANCE)m_pWmiInstData)->SizeDataBlock) {
//
// Remember the version
//
m_Version = ((PWNODE_SINGLE_INSTANCE)m_pWmiInstData)->WnodeHeader.Version;
return TRUE;
}
}
Close();
}
SetLastError(Error);
return FALSE;
}