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reactos/dll/win32/shell32/dialogs/dialogs.cpp
Arnav Bhatt 79e4efe04e
[MSGINA] Convert shutdown/logoff boxes back to modal dialog boxes (#5114) 
- Convert all modeless dialog boxes back to modal dialog boxes.
- Use WM_TIMER to detect SHIFT key press instead, as you can't
  directly intercept messages on modal dialog boxes.
- Remove some unused functions.

Fixes explorer crash on shutdown cancel. CORE-17749
2023-07-14 15:02:40 +03:00

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/*
* common shell dialogs
*
* Copyright 2000 Juergen Schmied
* Copyright 2018 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
* Copyright 2021 Arnav Bhatt <arnavbhatt288@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "precomp.h"
typedef struct
{
HWND hwndOwner;
HICON hIcon;
LPCWSTR lpstrDirectory;
LPCWSTR lpstrTitle;
LPCWSTR lpstrDescription;
UINT uFlags;
BOOL bCoInited;
} RUNFILEDLGPARAMS;
typedef struct
{
BOOL bFriendlyUI;
BOOL bIsButtonHot[2];
HBITMAP hImageStrip;
HBRUSH hBrush;
HFONT hfFont;
WNDPROC OldButtonProc;
} LOGOFF_DLG_CONTEXT, *PLOGOFF_DLG_CONTEXT;
typedef BOOL (WINAPI * LPFNOFN) (OPENFILENAMEW *);
WINE_DEFAULT_DEBUG_CHANNEL(shell);
static INT_PTR CALLBACK RunDlgProc(HWND, UINT, WPARAM, LPARAM);
static void FillList(HWND, LPWSTR, UINT, BOOL);
/*************************************************************************
* PickIconDlg [SHELL32.62]
*
*/
typedef struct
{
HMODULE hLibrary;
HWND hDlgCtrl;
WCHAR szPath[MAX_PATH];
INT Index;
INT nIcons;
HICON *phIcons;
} PICK_ICON_CONTEXT, *PPICK_ICON_CONTEXT;
BOOL CALLBACK EnumPickIconResourceProc(HMODULE hModule,
LPCWSTR lpszType,
LPWSTR lpszName,
LONG_PTR lParam)
{
PPICK_ICON_CONTEXT pIconContext = PPICK_ICON_CONTEXT(lParam);
HWND hDlgCtrl = pIconContext->hDlgCtrl;
if (IS_INTRESOURCE(lpszName))
lParam = LOWORD(lpszName);
else
lParam = -1;
SendMessageW(hDlgCtrl, LB_ADDSTRING, 0, lParam);
return TRUE;
}
static void
DestroyIconList(HWND hDlgCtrl, PPICK_ICON_CONTEXT pIconContext)
{
int count;
int index;
count = SendMessageW(hDlgCtrl, LB_GETCOUNT, 0, 0);
if (count == LB_ERR)
return;
for(index = 0; index < count; index++)
{
DestroyIcon(pIconContext->phIcons[index]);
pIconContext->phIcons[index] = NULL;
}
}
static BOOL
DoLoadIcons(HWND hwndDlg, PPICK_ICON_CONTEXT pIconContext, LPCWSTR pszFile)
{
WCHAR szExpandedPath[MAX_PATH];
// Destroy previous icons
DestroyIconList(pIconContext->hDlgCtrl, pIconContext);
SendMessageW(pIconContext->hDlgCtrl, LB_RESETCONTENT, 0, 0);
delete[] pIconContext->phIcons;
// Store the path
StringCchCopyW(pIconContext->szPath, _countof(pIconContext->szPath), pszFile);
ExpandEnvironmentStringsW(pszFile, szExpandedPath, _countof(szExpandedPath));
// Load the module if possible
HMODULE hLibrary = LoadLibraryExW(szExpandedPath, NULL, LOAD_LIBRARY_AS_DATAFILE);
if (pIconContext->hLibrary)
FreeLibrary(pIconContext->hLibrary);
pIconContext->hLibrary = hLibrary;
if (pIconContext->hLibrary)
{
// Load the icons from the module
pIconContext->nIcons = ExtractIconExW(szExpandedPath, -1, NULL, NULL, 0);
pIconContext->phIcons = new HICON[pIconContext->nIcons];
if (ExtractIconExW(szExpandedPath, 0, pIconContext->phIcons, NULL, pIconContext->nIcons))
{
EnumResourceNamesW(pIconContext->hLibrary, RT_GROUP_ICON, EnumPickIconResourceProc, (LPARAM)pIconContext);
}
else
{
pIconContext->nIcons = 0;
}
}
else
{
// .ico file
pIconContext->nIcons = 1;
pIconContext->phIcons = new HICON[1];
if (ExtractIconExW(szExpandedPath, 0, pIconContext->phIcons, NULL, pIconContext->nIcons))
{
SendMessageW(pIconContext->hDlgCtrl, LB_ADDSTRING, 0, 0);
}
else
{
pIconContext->nIcons = 0;
}
}
// Set the text and reset the edit control's modification flag
SetDlgItemTextW(hwndDlg, IDC_EDIT_PATH, pIconContext->szPath);
SendDlgItemMessage(hwndDlg, IDC_EDIT_PATH, EM_SETMODIFY, FALSE, 0);
if (pIconContext->nIcons == 0)
{
delete[] pIconContext->phIcons;
pIconContext->phIcons = NULL;
}
return (pIconContext->nIcons > 0);
}
static void NoIconsInFile(HWND hwndDlg, PPICK_ICON_CONTEXT pIconContext)
{
// Show an error message
CStringW strText, strTitle(MAKEINTRESOURCEW(IDS_PICK_ICON_TITLE));
strText.Format(IDS_NO_ICONS, pIconContext->szPath);
MessageBoxW(hwndDlg, strText, strTitle, MB_ICONWARNING);
// Load the default icons
DoLoadIcons(hwndDlg, pIconContext, g_pszShell32);
}
// Icon size
#define CX_ICON GetSystemMetrics(SM_CXICON)
#define CY_ICON GetSystemMetrics(SM_CYICON)
// Item size
#define CX_ITEM (CX_ICON + 4)
#define CY_ITEM (CY_ICON + 12)
INT_PTR CALLBACK PickIconProc(
HWND hwndDlg,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
LPMEASUREITEMSTRUCT lpmis;
LPDRAWITEMSTRUCT lpdis;
HICON hIcon;
INT index, count;
WCHAR szText[MAX_PATH], szFilter[100];
CStringW strTitle;
OPENFILENAMEW ofn;
PPICK_ICON_CONTEXT pIconContext = (PPICK_ICON_CONTEXT)GetWindowLongPtr(hwndDlg, DWLP_USER);
switch(uMsg)
{
case WM_INITDIALOG:
{
pIconContext = (PPICK_ICON_CONTEXT)lParam;
SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)pIconContext);
pIconContext->hDlgCtrl = GetDlgItem(hwndDlg, IDC_PICKICON_LIST);
SendMessageW(pIconContext->hDlgCtrl, LB_SETCOLUMNWIDTH, CX_ITEM, 0);
// Load the icons
if (!DoLoadIcons(hwndDlg, pIconContext, pIconContext->szPath))
NoIconsInFile(hwndDlg, pIconContext);
// Set the selection
count = SendMessageW(pIconContext->hDlgCtrl, LB_GETCOUNT, 0, 0);
if (count != LB_ERR)
{
if (pIconContext->Index < 0)
{
// A negative value will be interpreted as a negated resource ID.
LPARAM lParam = -pIconContext->Index;
pIconContext->Index = (INT)SendMessageW(pIconContext->hDlgCtrl, LB_FINDSTRINGEXACT, -1, lParam);
}
if (pIconContext->Index < 0 || count <= pIconContext->Index)
pIconContext->Index = 0;
SendMessageW(pIconContext->hDlgCtrl, LB_SETCURSEL, pIconContext->Index, 0);
SendMessageW(pIconContext->hDlgCtrl, LB_SETTOPINDEX, pIconContext->Index, 0);
}
SHAutoComplete(GetDlgItem(hwndDlg, IDC_EDIT_PATH), SHACF_DEFAULT);
return TRUE;
}
case WM_DESTROY:
{
DestroyIconList(pIconContext->hDlgCtrl, pIconContext);
delete[] pIconContext->phIcons;
if (pIconContext->hLibrary)
FreeLibrary(pIconContext->hLibrary);
break;
}
case WM_COMMAND:
switch(LOWORD(wParam))
{
case IDOK:
{
/* Check whether the path edit control has been modified; if so load the icons instead of validating */
if (SendDlgItemMessage(hwndDlg, IDC_EDIT_PATH, EM_GETMODIFY, 0, 0))
{
/* Reset the edit control's modification flag and retrieve the text */
SendDlgItemMessage(hwndDlg, IDC_EDIT_PATH, EM_SETMODIFY, FALSE, 0);
GetDlgItemTextW(hwndDlg, IDC_EDIT_PATH, szText, _countof(szText));
// Load the icons
if (!DoLoadIcons(hwndDlg, pIconContext, szText))
NoIconsInFile(hwndDlg, pIconContext);
// Set the selection
SendMessageW(pIconContext->hDlgCtrl, LB_SETCURSEL, 0, 0);
break;
}
/* The path edit control has not been modified, return the selection */
pIconContext->Index = (INT)SendMessageW(pIconContext->hDlgCtrl, LB_GETCURSEL, 0, 0);
GetDlgItemTextW(hwndDlg, IDC_EDIT_PATH, pIconContext->szPath, _countof(pIconContext->szPath));
EndDialog(hwndDlg, 1);
break;
}
case IDCANCEL:
EndDialog(hwndDlg, 0);
break;
case IDC_PICKICON_LIST:
switch (HIWORD(wParam))
{
case LBN_SELCHANGE:
InvalidateRect((HWND)lParam, NULL, TRUE);
break;
case LBN_DBLCLK:
SendMessage(hwndDlg, WM_COMMAND, MAKEWPARAM(IDOK, 0), 0);
break;
}
break;
case IDC_BUTTON_PATH:
{
// Choose the module path
szText[0] = 0;
szFilter[0] = 0;
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwndDlg;
ofn.lpstrFile = szText;
ofn.nMaxFile = _countof(szText);
strTitle.LoadString(IDS_PICK_ICON_TITLE);
ofn.lpstrTitle = strTitle;
LoadStringW(shell32_hInstance, IDS_PICK_ICON_FILTER, szFilter, _countof(szFilter));
ofn.lpstrFilter = szFilter;
if (!GetOpenFileNameW(&ofn))
break;
// Load the icons
if (!DoLoadIcons(hwndDlg, pIconContext, szText))
NoIconsInFile(hwndDlg, pIconContext);
// Set the selection
SendMessageW(pIconContext->hDlgCtrl, LB_SETCURSEL, 0, 0);
break;
}
default:
break;
}
break;
case WM_MEASUREITEM:
lpmis = (LPMEASUREITEMSTRUCT)lParam;
lpmis->itemHeight = CY_ITEM;
return TRUE;
case WM_DRAWITEM:
{
lpdis = (LPDRAWITEMSTRUCT)lParam;
if (lpdis->itemID == (UINT)-1)
break;
switch (lpdis->itemAction)
{
case ODA_SELECT:
case ODA_DRAWENTIRE:
{
index = SendMessageW(pIconContext->hDlgCtrl, LB_GETCURSEL, 0, 0);
hIcon = pIconContext->phIcons[lpdis->itemID];
if (lpdis->itemID == (UINT)index)
FillRect(lpdis->hDC, &lpdis->rcItem, (HBRUSH)(COLOR_HIGHLIGHT + 1));
else
FillRect(lpdis->hDC, &lpdis->rcItem, (HBRUSH)(COLOR_WINDOW + 1));
// Centering
INT x = lpdis->rcItem.left + (CX_ITEM - CX_ICON) / 2;
INT y = lpdis->rcItem.top + (CY_ITEM - CY_ICON) / 2;
DrawIconEx(lpdis->hDC, x, y, hIcon, 0, 0, 0, NULL, DI_NORMAL);
break;
}
}
return TRUE;
}
}
return FALSE;
}
BOOL WINAPI PickIconDlg(
HWND hWndOwner,
LPWSTR lpstrFile,
UINT nMaxFile,
INT* lpdwIconIndex)
{
int res;
WCHAR szExpandedPath[MAX_PATH];
// Initialize the dialog
PICK_ICON_CONTEXT IconContext = { NULL };
IconContext.Index = *lpdwIconIndex;
StringCchCopyW(IconContext.szPath, _countof(IconContext.szPath), lpstrFile);
ExpandEnvironmentStringsW(lpstrFile, szExpandedPath, _countof(szExpandedPath));
if (!szExpandedPath[0] ||
GetFileAttributesW(szExpandedPath) == INVALID_FILE_ATTRIBUTES)
{
if (szExpandedPath[0])
{
// No such file
CStringW strText, strTitle(MAKEINTRESOURCEW(IDS_PICK_ICON_TITLE));
strText.Format(IDS_FILE_NOT_FOUND, lpstrFile);
MessageBoxW(hWndOwner, strText, strTitle, MB_ICONWARNING);
}
// Set the default value
StringCchCopyW(IconContext.szPath, _countof(IconContext.szPath), g_pszShell32);
}
// Show the dialog
res = DialogBoxParamW(shell32_hInstance, MAKEINTRESOURCEW(IDD_PICK_ICON), hWndOwner, PickIconProc, (LPARAM)&IconContext);
if (res)
{
// Store the selected icon
StringCchCopyW(lpstrFile, nMaxFile, IconContext.szPath);
*lpdwIconIndex = IconContext.Index;
}
return res;
}
/*************************************************************************
* RunFileDlg [internal]
*
* The Unicode function that is available as ordinal 61 on Windows NT/2000/XP/...
*/
void WINAPI RunFileDlg(
HWND hWndOwner,
HICON hIcon,
LPCWSTR lpstrDirectory,
LPCWSTR lpstrTitle,
LPCWSTR lpstrDescription,
UINT uFlags)
{
TRACE("\n");
RUNFILEDLGPARAMS rfdp;
rfdp.hwndOwner = hWndOwner;
rfdp.hIcon = hIcon;
rfdp.lpstrDirectory = lpstrDirectory;
rfdp.lpstrTitle = lpstrTitle;
rfdp.lpstrDescription = lpstrDescription;
rfdp.uFlags = uFlags;
DialogBoxParamW(shell32_hInstance, MAKEINTRESOURCEW(IDD_RUN), hWndOwner, RunDlgProc, (LPARAM)&rfdp);
}
/* find the directory that contains the file being run */
static LPWSTR RunDlg_GetParentDir(LPCWSTR cmdline)
{
const WCHAR *src;
WCHAR *dest, *result, *result_end=NULL;
result = (WCHAR *)HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*(strlenW(cmdline)+5));
if (NULL == result)
{
TRACE("HeapAlloc couldn't allocate %d bytes\n", sizeof(WCHAR)*(strlenW(cmdline)+5));
return NULL;
}
src = cmdline;
dest = result;
if (*src == '"')
{
src++;
while (*src && *src != '"')
{
if (*src == '\\')
result_end = dest;
*dest++ = *src++;
}
}
else {
while (*src)
{
if (isspaceW(*src))
{
*dest = 0;
if (INVALID_FILE_ATTRIBUTES != GetFileAttributesW(result))
break;
strcatW(dest, L".exe");
if (INVALID_FILE_ATTRIBUTES != GetFileAttributesW(result))
break;
}
else if (*src == '\\')
result_end = dest;
*dest++ = *src++;
}
}
if (result_end)
{
*result_end = 0;
return result;
}
else
{
HeapFree(GetProcessHeap(), 0, result);
return NULL;
}
}
static void EnableOkButtonFromEditContents(HWND hwnd)
{
BOOL Enable = FALSE;
INT Length, n;
HWND Edit = GetDlgItem(hwnd, IDC_RUNDLG_EDITPATH);
Length = GetWindowTextLengthW(Edit);
if (Length > 0)
{
PWCHAR psz = (PWCHAR)HeapAlloc(GetProcessHeap(), 0, (Length + 1) * sizeof(WCHAR));
if (psz)
{
GetWindowTextW(Edit, psz, Length + 1);
for (n = 0; n < Length && !Enable; ++n)
Enable = psz[n] != ' ';
HeapFree(GetProcessHeap(), 0, psz);
}
else
Enable = TRUE;
}
EnableWindow(GetDlgItem(hwnd, IDOK), Enable);
}
/* Dialog procedure for RunFileDlg */
static INT_PTR CALLBACK RunDlgProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
RUNFILEDLGPARAMS *prfdp = (RUNFILEDLGPARAMS *)GetWindowLongPtrW(hwnd, DWLP_USER);
HWND hwndCombo, hwndEdit;
COMBOBOXINFO ComboInfo;
switch (message)
{
case WM_INITDIALOG:
prfdp = (RUNFILEDLGPARAMS *)lParam;
SetWindowLongPtrW(hwnd, DWLP_USER, (LONG_PTR)prfdp);
if (prfdp->lpstrTitle)
SetWindowTextW(hwnd, prfdp->lpstrTitle);
if (prfdp->lpstrDescription)
SetWindowTextW(GetDlgItem(hwnd, IDC_RUNDLG_DESCRIPTION), prfdp->lpstrDescription);
if (prfdp->uFlags & RFF_NOBROWSE)
{
HWND browse = GetDlgItem(hwnd, IDC_RUNDLG_BROWSE);
ShowWindow(browse, SW_HIDE);
EnableWindow(browse, FALSE);
}
if (prfdp->uFlags & RFF_NOLABEL)
ShowWindow(GetDlgItem(hwnd, IDC_RUNDLG_LABEL), SW_HIDE);
if (prfdp->uFlags & RFF_NOSEPARATEMEM)
{
FIXME("RFF_NOSEPARATEMEM not supported\n");
}
/* Use the default Shell Run icon if no one is specified */
if (prfdp->hIcon == NULL)
prfdp->hIcon = LoadIconW(shell32_hInstance, MAKEINTRESOURCEW(IDI_SHELL_RUN));
/*
* NOTE: Starting Windows Vista, the "Run File" dialog gets a
* title icon that remains the same as the default one, even if
* the user specifies a custom icon.
* Since we currently imitate Windows 2003, therefore do not show
* any title icon.
*/
// SendMessageW(hwnd, WM_SETICON, ICON_BIG, (LPARAM)prfdp->hIcon);
// SendMessageW(hwnd, WM_SETICON, ICON_SMALL, (LPARAM)prfdp->hIcon);
SendMessageW(GetDlgItem(hwnd, IDC_RUNDLG_ICON), STM_SETICON, (WPARAM)prfdp->hIcon, 0);
hwndCombo = GetDlgItem(hwnd, IDC_RUNDLG_EDITPATH);
FillList(hwndCombo, NULL, 0, (prfdp->uFlags & RFF_NODEFAULT) == 0);
EnableOkButtonFromEditContents(hwnd);
ComboInfo.cbSize = sizeof(ComboInfo);
GetComboBoxInfo(hwndCombo, &ComboInfo);
hwndEdit = ComboInfo.hwndItem;
ASSERT(::IsWindow(hwndEdit));
// SHAutoComplete needs co init
prfdp->bCoInited = SUCCEEDED(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED));
SHAutoComplete(hwndEdit, SHACF_FILESYSTEM | SHACF_FILESYS_ONLY | SHACF_URLALL);
SetFocus(hwndCombo);
return TRUE;
case WM_DESTROY:
if (prfdp->bCoInited)
CoUninitialize();
break;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
{
LRESULT lRet;
HWND htxt = GetDlgItem(hwnd, IDC_RUNDLG_EDITPATH);
INT ic;
WCHAR *psz, *pszExpanded, *parent = NULL;
DWORD cchExpand;
SHELLEXECUTEINFOW sei;
NMRUNFILEDLGW nmrfd;
ic = GetWindowTextLengthW(htxt);
if (ic == 0)
{
EndDialog(hwnd, IDCANCEL);
return TRUE;
}
ZeroMemory(&sei, sizeof(sei));
sei.cbSize = sizeof(sei);
/*
* Allocate a new MRU entry, we need to add two characters
* for the terminating "\\1" part, then the NULL character.
*/
psz = (WCHAR*)HeapAlloc(GetProcessHeap(), 0, (ic + 2 + 1)*sizeof(WCHAR));
if (!psz)
{
EndDialog(hwnd, IDCANCEL);
return TRUE;
}
GetWindowTextW(htxt, psz, ic + 1);
sei.hwnd = hwnd;
sei.nShow = SW_SHOWNORMAL;
sei.lpFile = psz;
StrTrimW(psz, L" \t");
if (wcschr(psz, L'%') != NULL)
{
cchExpand = ExpandEnvironmentStringsW(psz, NULL, 0);
pszExpanded = (WCHAR*)HeapAlloc(GetProcessHeap(), 0, cchExpand * sizeof(WCHAR));
if (!pszExpanded)
{
HeapFree(GetProcessHeap(), 0, psz);
EndDialog(hwnd, IDCANCEL);
return TRUE;
}
ExpandEnvironmentStringsW(psz, pszExpanded, cchExpand);
StrTrimW(pszExpanded, L" \t");
}
else
{
pszExpanded = psz;
}
/*
* The precedence is the following: first the user-given
* current directory is used; if there is none, a current
* directory is computed if the RFF_CALCDIRECTORY is set,
* otherwise no current directory is defined.
*/
LPCWSTR pszStartDir;
if (prfdp->lpstrDirectory)
{
sei.lpDirectory = prfdp->lpstrDirectory;
pszStartDir = prfdp->lpstrDirectory;
}
else if (prfdp->uFlags & RFF_CALCDIRECTORY)
{
sei.lpDirectory = parent = RunDlg_GetParentDir(sei.lpFile);
pszStartDir = parent = RunDlg_GetParentDir(pszExpanded);
}
else
{
sei.lpDirectory = NULL;
pszStartDir = NULL;
}
/* Hide the dialog for now on, we will show it up in case of retry */
ShowWindow(hwnd, SW_HIDE);
/*
* As shown by manual tests on Windows, modifying the contents
* of the notification structure will not modify what the
* Run-Dialog will use for the nShow parameter. However the
* lpFile and lpDirectory pointers are set to the buffers used
* by the Run-Dialog, as a consequence they can be modified by
* the notification receiver, as long as it respects the lengths
* of the buffers (to avoid buffer overflows).
*/
nmrfd.hdr.code = RFN_VALIDATE;
nmrfd.hdr.hwndFrom = hwnd;
nmrfd.hdr.idFrom = 0;
nmrfd.lpFile = pszExpanded;
nmrfd.lpDirectory = pszStartDir;
nmrfd.nShow = SW_SHOWNORMAL;
lRet = SendMessageW(prfdp->hwndOwner, WM_NOTIFY, 0, (LPARAM)&nmrfd.hdr);
switch (lRet)
{
case RF_CANCEL:
EndDialog(hwnd, IDCANCEL);
break;
case RF_OK:
/* We use SECL_NO_UI because we don't want to see
* errors here, but we will try again below and
* there we will output our errors. */
if (SUCCEEDED(ShellExecCmdLine(hwnd, pszExpanded, pszStartDir, SW_SHOWNORMAL, NULL,
SECL_ALLOW_NONEXE | SECL_NO_UI)))
{
/* Call GetWindowText again in case the contents of the edit box have changed. */
GetWindowTextW(htxt, psz, ic + 1);
FillList(htxt, psz, ic + 2 + 1, FALSE);
EndDialog(hwnd, IDOK);
break;
}
else if (SUCCEEDED(ShellExecuteExW(&sei)))
{
/* Call GetWindowText again in case the contents of the edit box have changed. */
GetWindowTextW(htxt, psz, ic + 1);
FillList(htxt, psz, ic + 2 + 1, FALSE);
EndDialog(hwnd, IDOK);
break;
}
/* Fall-back */
case RF_RETRY:
default:
SendMessageW(htxt, CB_SETEDITSEL, 0, MAKELPARAM (0, -1));
/* Show back the dialog */
ShowWindow(hwnd, SW_SHOW);
break;
}
HeapFree(GetProcessHeap(), 0, parent);
HeapFree(GetProcessHeap(), 0, psz);
if (psz != pszExpanded)
HeapFree(GetProcessHeap(), 0, pszExpanded);
return TRUE;
}
case IDCANCEL:
EndDialog(hwnd, IDCANCEL);
return TRUE;
case IDC_RUNDLG_BROWSE:
{
HMODULE hComdlg = NULL;
LPFNOFN ofnProc = NULL;
WCHAR szFName[1024] = {0};
WCHAR filter[MAX_PATH], szCaption[MAX_PATH];
OPENFILENAMEW ofn;
LoadStringW(shell32_hInstance, IDS_RUNDLG_BROWSE_FILTER, filter, _countof(filter));
LoadStringW(shell32_hInstance, IDS_RUNDLG_BROWSE_CAPTION, szCaption, _countof(szCaption));
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFilter = filter;
ofn.lpstrFile = szFName;
ofn.nMaxFile = _countof(szFName) - 1;
ofn.lpstrTitle = szCaption;
ofn.Flags = OFN_ENABLESIZING | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY | OFN_PATHMUSTEXIST | OFN_EXPLORER;
ofn.lpstrInitialDir = prfdp->lpstrDirectory;
if (NULL == (hComdlg = LoadLibraryExW(L"comdlg32", NULL, 0)) ||
NULL == (ofnProc = (LPFNOFN)GetProcAddress(hComdlg, "GetOpenFileNameW")))
{
ERR("Couldn't get GetOpenFileName function entry (lib=%p, proc=%p)\n", hComdlg, ofnProc);
ShellMessageBoxW(shell32_hInstance, hwnd, MAKEINTRESOURCEW(IDS_RUNDLG_BROWSE_ERROR), NULL, MB_OK | MB_ICONERROR);
return TRUE;
}
if (ofnProc(&ofn))
{
SetFocus(GetDlgItem(hwnd, IDOK));
SetWindowTextW(GetDlgItem(hwnd, IDC_RUNDLG_EDITPATH), szFName);
SendMessageW(GetDlgItem(hwnd, IDC_RUNDLG_EDITPATH), CB_SETEDITSEL, 0, MAKELPARAM(0, -1));
EnableOkButtonFromEditContents(hwnd);
SetFocus(GetDlgItem(hwnd, IDOK));
}
FreeLibrary(hComdlg);
return TRUE;
}
case IDC_RUNDLG_EDITPATH:
{
if (HIWORD(wParam) == CBN_EDITCHANGE)
{
EnableOkButtonFromEditContents(hwnd);
}
return TRUE;
}
}
return TRUE;
}
return FALSE;
}
/*
* This function grabs the MRU list from the registry and fills the combo-list
* for the "Run" dialog above. fShowDefault is ignored if pszLatest != NULL.
*/
// FIXME: Part of this code should be part of some MRUList API,
// that is scattered amongst shell32, comctl32 (?!) and comdlg32.
static void FillList(HWND hCb, LPWSTR pszLatest, UINT cchStr, BOOL fShowDefault)
{
HKEY hkey;
WCHAR *pszList = NULL, *pszCmd = NULL, *pszTmp = NULL, cMatch = 0, cMax = 0x60;
WCHAR szIndex[2] = L"-";
UINT cchLatest;
DWORD dwType, icList = 0, icCmd = 0;
LRESULT lRet;
UINT Nix;
/*
* Retrieve the string length of pszLatest and check whether its buffer size
* (cchStr in number of characters) is large enough to add the terminating "\\1"
* (and the NULL character).
*/
if (pszLatest)
{
cchLatest = wcslen(pszLatest);
if (cchStr < cchLatest + 2 + 1)
{
TRACE("pszLatest buffer is not large enough (%d) to hold the MRU terminator.\n", cchStr);
return;
}
}
else
{
cchStr = 0;
}
SendMessageW(hCb, CB_RESETCONTENT, 0, 0);
lRet = RegCreateKeyExW(HKEY_CURRENT_USER,
L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\RunMRU",
0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hkey, NULL);
if (lRet != ERROR_SUCCESS)
{
TRACE("Unable to open or create the RunMRU key, error %d\n", GetLastError());
return;
}
lRet = RegQueryValueExW(hkey, L"MRUList", NULL, &dwType, NULL, &icList);
if (lRet == ERROR_SUCCESS && dwType == REG_SZ && icList > sizeof(WCHAR))
{
pszList = (WCHAR*)HeapAlloc(GetProcessHeap(), 0, icList);
if (!pszList)
{
TRACE("HeapAlloc failed to allocate %d bytes\n", icList);
goto Continue;
}
pszList[0] = L'\0';
lRet = RegQueryValueExW(hkey, L"MRUList", NULL, NULL, (LPBYTE)pszList, &icList);
if (lRet != ERROR_SUCCESS)
{
TRACE("Unable to grab MRUList, error %d\n", GetLastError());
pszList[0] = L'\0';
}
}
else
{
Continue:
icList = sizeof(WCHAR);
pszList = (WCHAR*)HeapAlloc(GetProcessHeap(), 0, icList);
if (!pszList)
{
TRACE("HeapAlloc failed to allocate %d bytes\n", icList);
RegCloseKey(hkey);
return;
}
pszList[0] = L'\0';
}
/* Convert the number of bytes from MRUList into number of characters (== number of indices) */
icList /= sizeof(WCHAR);
for (Nix = 0; Nix < icList - 1; Nix++)
{
if (pszList[Nix] > cMax)
cMax = pszList[Nix];
szIndex[0] = pszList[Nix];
lRet = RegQueryValueExW(hkey, szIndex, NULL, &dwType, NULL, &icCmd);
if (lRet != ERROR_SUCCESS || dwType != REG_SZ)
{
TRACE("Unable to grab size of index, error %d\n", GetLastError());
continue;
}
if (pszCmd)
{
pszTmp = (WCHAR*)HeapReAlloc(GetProcessHeap(), 0, pszCmd, icCmd);
if (!pszTmp)
{
TRACE("HeapReAlloc failed to reallocate %d bytes\n", icCmd);
continue;
}
pszCmd = pszTmp;
}
else
{
pszCmd = (WCHAR*)HeapAlloc(GetProcessHeap(), 0, icCmd);
if (!pszCmd)
{
TRACE("HeapAlloc failed to allocate %d bytes\n", icCmd);
continue;
}
}
lRet = RegQueryValueExW(hkey, szIndex, NULL, NULL, (LPBYTE)pszCmd, &icCmd);
if (lRet != ERROR_SUCCESS)
{
TRACE("Unable to grab index, error %d\n", GetLastError());
continue;
}
/*
* Generally the command string will end up with "\\1".
* Find the last backslash in the string and NULL-terminate.
* Windows does not seem to check for what comes next, so that
* a command of the form:
* c:\\my_dir\\myfile.exe
* will be cut just after "my_dir", whereas a command of the form:
* c:\\my_dir\\myfile.exe\\1
* will be cut just after "myfile.exe".
*/
pszTmp = wcsrchr(pszCmd, L'\\');
if (pszTmp)
*pszTmp = L'\0';
/*
* In the following we try to add pszLatest to the MRU list.
* We suppose that our caller has already correctly allocated
* the string with enough space for us to append a "\\1".
*
* FIXME: TODO! (At the moment we don't append it!)
*/
if (pszLatest)
{
if (wcsicmp(pszCmd, pszLatest) == 0)
{
SendMessageW(hCb, CB_INSERTSTRING, 0, (LPARAM)pszCmd);
SetWindowTextW(hCb, pszCmd);
SendMessageW(hCb, CB_SETEDITSEL, 0, MAKELPARAM(0, -1));
cMatch = pszList[Nix];
memmove(&pszList[1], pszList, Nix * sizeof(WCHAR));
pszList[0] = cMatch;
continue;
}
}
if (icList - 1 != 26 || icList - 2 != Nix || cMatch || pszLatest == NULL)
{
SendMessageW(hCb, CB_ADDSTRING, 0, (LPARAM)pszCmd);
if (!Nix && fShowDefault)
{
SetWindowTextW(hCb, pszCmd);
SendMessageW(hCb, CB_SETEDITSEL, 0, MAKELPARAM(0, -1));
}
}
else
{
SendMessageW(hCb, CB_INSERTSTRING, 0, (LPARAM)pszLatest);
SetWindowTextW(hCb, pszLatest);
SendMessageW(hCb, CB_SETEDITSEL, 0, MAKELPARAM(0, -1));
cMatch = pszList[Nix];
memmove(&pszList[1], pszList, Nix * sizeof(WCHAR));
pszList[0] = cMatch;
szIndex[0] = cMatch;
wcscpy(&pszLatest[cchLatest], L"\\1");
RegSetValueExW(hkey, szIndex, 0, REG_SZ, (LPBYTE)pszLatest, (cchLatest + 2 + 1) * sizeof(WCHAR));
pszLatest[cchLatest] = L'\0';
}
}
if (!cMatch && pszLatest != NULL)
{
SendMessageW(hCb, CB_INSERTSTRING, 0, (LPARAM)pszLatest);
SetWindowTextW(hCb, pszLatest);
SendMessageW(hCb, CB_SETEDITSEL, 0, MAKELPARAM (0, -1));
cMatch = ++cMax;
if (pszList)
{
pszTmp = (WCHAR*)HeapReAlloc(GetProcessHeap(), 0, pszList, (++icList) * sizeof(WCHAR));
if (!pszTmp)
{
TRACE("HeapReAlloc failed to reallocate enough bytes\n");
goto Cleanup;
}
pszList = pszTmp;
}
else
{
pszList = (WCHAR*)HeapAlloc(GetProcessHeap(), 0, (++icList) * sizeof(WCHAR));
if (!pszList)
{
TRACE("HeapAlloc failed to allocate enough bytes\n");
goto Cleanup;
}
}
memmove(&pszList[1], pszList, (icList - 1) * sizeof(WCHAR));
pszList[0] = cMatch;
szIndex[0] = cMatch;
wcscpy(&pszLatest[cchLatest], L"\\1");
RegSetValueExW(hkey, szIndex, 0, REG_SZ, (LPBYTE)pszLatest, (cchLatest + 2 + 1) * sizeof(WCHAR));
pszLatest[cchLatest] = L'\0';
}
Cleanup:
RegSetValueExW(hkey, L"MRUList", 0, REG_SZ, (LPBYTE)pszList, (wcslen(pszList) + 1) * sizeof(WCHAR));
HeapFree(GetProcessHeap(), 0, pszCmd);
HeapFree(GetProcessHeap(), 0, pszList);
RegCloseKey(hkey);
}
/*************************************************************************
* ConfirmDialog [internal]
*
* Put up a confirm box, return TRUE if the user confirmed
*/
static BOOL ConfirmDialog(HWND hWndOwner, UINT PromptId, UINT TitleId)
{
WCHAR Prompt[256];
WCHAR Title[256];
LoadStringW(shell32_hInstance, PromptId, Prompt, _countof(Prompt));
LoadStringW(shell32_hInstance, TitleId, Title, _countof(Title));
return MessageBoxW(hWndOwner, Prompt, Title, MB_YESNO | MB_ICONQUESTION) == IDYES;
}
typedef HRESULT (WINAPI *tShellDimScreen)(IUnknown** Unknown, HWND* hWindow);
BOOL
CallShellDimScreen(IUnknown** pUnknown, HWND* hWindow)
{
static tShellDimScreen ShellDimScreen;
static BOOL Initialized = FALSE;
if (!Initialized)
{
HMODULE mod = LoadLibraryW(L"msgina.dll");
ShellDimScreen = (tShellDimScreen)GetProcAddress(mod, (LPCSTR)16);
Initialized = TRUE;
}
HRESULT hr = E_FAIL;
if (ShellDimScreen)
hr = ShellDimScreen(pUnknown, hWindow);
return SUCCEEDED(hr);
}
/* Used to get the shutdown privilege */
static BOOL
EnablePrivilege(LPCWSTR lpszPrivilegeName, BOOL bEnablePrivilege)
{
BOOL Success;
HANDLE hToken;
TOKEN_PRIVILEGES tp;
Success = OpenProcessToken(GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES,
&hToken);
if (!Success) return Success;
Success = LookupPrivilegeValueW(NULL,
lpszPrivilegeName,
&tp.Privileges[0].Luid);
if (!Success) goto Quit;
tp.PrivilegeCount = 1;
tp.Privileges[0].Attributes = (bEnablePrivilege ? SE_PRIVILEGE_ENABLED : 0);
Success = AdjustTokenPrivileges(hToken, FALSE, &tp, 0, NULL, NULL);
Quit:
CloseHandle(hToken);
return Success;
}
/*************************************************************************
* RestartDialogEx [SHELL32.730]
*/
int WINAPI RestartDialogEx(HWND hWndOwner, LPCWSTR lpwstrReason, DWORD uFlags, DWORD uReason)
{
TRACE("(%p)\n", hWndOwner);
CComPtr<IUnknown> fadeHandler;
HWND parent;
if (!CallShellDimScreen(&fadeHandler, &parent))
parent = hWndOwner;
/* FIXME: use lpwstrReason */
if (ConfirmDialog(parent, IDS_RESTART_PROMPT, IDS_RESTART_TITLE))
{
EnablePrivilege(L"SeShutdownPrivilege", TRUE);
ExitWindowsEx(EWX_REBOOT, uReason);
EnablePrivilege(L"SeShutdownPrivilege", FALSE);
}
return 0;
}
/* Functions and macros used for fancy log off dialog box */
#define IS_PRODUCT_VERSION_WORKSTATION 0x300
#define FRIENDLY_LOGOFF_IS_NOT_ENFORCED 0x0
#define FONT_POINT_SIZE 13
#define DARK_GREY_COLOR RGB(244, 244, 244)
#define LIGHT_GREY_COLOR RGB(38, 38, 38)
/* Bitmap's size for buttons */
#define CX_BITMAP 33
#define CY_BITMAP 33
#define NUMBER_OF_BUTTONS 2
/* After determining the button as well as its state paint the image strip bitmap using these predefined positions */
#define BUTTON_SWITCH_USER 0
#define BUTTON_SWITCH_USER_PRESSED (CY_BITMAP + BUTTON_SWITCH_USER)
#define BUTTON_SWITCH_USER_FOCUSED (CY_BITMAP + BUTTON_SWITCH_USER_PRESSED)
#define BUTTON_LOG_OFF (CY_BITMAP + BUTTON_SWITCH_USER_FOCUSED)
#define BUTTON_LOG_OFF_PRESSED (CY_BITMAP + BUTTON_LOG_OFF)
#define BUTTON_LOG_OFF_FOCUSED (CY_BITMAP + BUTTON_LOG_OFF_PRESSED)
#define BUTTON_SWITCH_USER_DISABLED (CY_BITMAP + BUTTON_LOG_OFF_FOCUSED) // Temporary
/* For bIsButtonHot */
#define LOG_OFF_BUTTON_HOT 0
#define SWITCH_USER_BUTTON_HOT 1
BOOL DrawIconOnOwnerDrawnButtons(DRAWITEMSTRUCT* pdis, PLOGOFF_DLG_CONTEXT pContext)
{
BOOL bRet = FALSE;
HDC hdcMem = NULL;
HBITMAP hbmOld = NULL;
int y = 0;
RECT rect;
hdcMem = CreateCompatibleDC(pdis->hDC);
hbmOld = (HBITMAP)SelectObject(hdcMem, pContext->hImageStrip);
rect = pdis->rcItem;
/* Check the button ID for revelant bitmap to be used */
switch (pdis->CtlID)
{
case IDC_LOG_OFF_BUTTON:
{
switch (pdis->itemAction)
{
case ODA_DRAWENTIRE:
case ODA_FOCUS:
case ODA_SELECT:
{
y = BUTTON_LOG_OFF;
if (pdis->itemState & ODS_SELECTED)
{
y = BUTTON_LOG_OFF_PRESSED;
}
else if (pContext->bIsButtonHot[LOG_OFF_BUTTON_HOT] || (pdis->itemState & ODS_FOCUS))
{
y = BUTTON_LOG_OFF_FOCUSED;
}
break;
}
}
break;
}
case IDC_SWITCH_USER_BUTTON:
{
switch (pdis->itemAction)
{
case ODA_DRAWENTIRE:
case ODA_FOCUS:
case ODA_SELECT:
{
y = BUTTON_SWITCH_USER;
if (pdis->itemState & ODS_SELECTED)
{
y = BUTTON_SWITCH_USER_PRESSED;
}
else if (pContext->bIsButtonHot[SWITCH_USER_BUTTON_HOT] || (pdis->itemState & ODS_FOCUS))
{
y = BUTTON_SWITCH_USER_FOCUSED;
}
/*
* Since switch user functionality isn't implemented yet therefore the button has been disabled
* temporarily hence show the disabled state
*/
else if (pdis->itemState & ODS_DISABLED)
{
y = BUTTON_SWITCH_USER_DISABLED;
}
break;
}
}
break;
}
}
/* Draw it on the required button */
bRet = BitBlt(pdis->hDC,
(rect.right - rect.left - CX_BITMAP) / 2,
(rect.bottom - rect.top - CY_BITMAP) / 2,
CX_BITMAP, CY_BITMAP, hdcMem, 0, y, SRCCOPY);
SelectObject(hdcMem, hbmOld);
DeleteDC(hdcMem);
return bRet;
}
INT_PTR CALLBACK OwnerDrawButtonSubclass(HWND hButton, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
PLOGOFF_DLG_CONTEXT pContext;
pContext = (PLOGOFF_DLG_CONTEXT)GetWindowLongPtrW(GetParent(hButton), GWLP_USERDATA);
int buttonID = GetDlgCtrlID(hButton);
switch (uMsg)
{
case WM_MOUSEMOVE:
{
HWND hwndTarget = NULL;
POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};;
if (GetCapture() != hButton)
{
SetCapture(hButton);
switch (buttonID)
{
case IDC_LOG_OFF_BUTTON:
{
pContext->bIsButtonHot[LOG_OFF_BUTTON_HOT] = TRUE;
break;
}
case IDC_SWITCH_USER_BUTTON:
{
pContext->bIsButtonHot[SWITCH_USER_BUTTON_HOT] = TRUE;
break;
}
}
SetCursor(LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_HAND)));
}
ClientToScreen(hButton, &pt);
hwndTarget = WindowFromPoint(pt);
if (hwndTarget != hButton)
{
ReleaseCapture();
switch (buttonID)
{
case IDC_LOG_OFF_BUTTON:
{
pContext->bIsButtonHot[LOG_OFF_BUTTON_HOT] = FALSE;
break;
}
case IDC_SWITCH_USER_BUTTON:
{
pContext->bIsButtonHot[SWITCH_USER_BUTTON_HOT] = FALSE;
break;
}
}
}
InvalidateRect(hButton, NULL, FALSE);
break;
}
/* Whenever one of the buttons gets the keyboard focus, set it as default button */
case WM_SETFOCUS:
{
SendMessageW(GetParent(hButton), DM_SETDEFID, buttonID, 0);
break;
}
/* Otherwise, set IDCANCEL as default button */
case WM_KILLFOCUS:
{
SendMessageW(GetParent(hButton), DM_SETDEFID, IDCANCEL, 0);
break;
}
}
return CallWindowProcW(pContext->OldButtonProc, hButton, uMsg, wParam, lParam);
}
VOID CreateToolTipForButtons(int controlID, int detailID, HWND hDlg, int titleID)
{
HWND hwndTool = NULL, hwndTip = NULL;
WCHAR szBuffer[256];
TTTOOLINFOW tool;
hwndTool = GetDlgItem(hDlg, controlID);
tool.cbSize = sizeof(tool);
tool.hwnd = hDlg;
tool.uFlags = TTF_IDISHWND | TTF_SUBCLASS;
tool.uId = (UINT_PTR)hwndTool;
/* Create the tooltip */
hwndTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL,
WS_POPUP | TTS_ALWAYSTIP | TTS_BALLOON,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
hDlg, NULL, shell32_hInstance, NULL);
/* Associate the tooltip with the tool. */
LoadStringW(shell32_hInstance, detailID, szBuffer, _countof(szBuffer));
tool.lpszText = szBuffer;
SendMessageW(hwndTip, TTM_ADDTOOLW, 0, (LPARAM)&tool);
LoadStringW(shell32_hInstance, titleID, szBuffer, _countof(szBuffer));
SendMessageW(hwndTip, TTM_SETTITLEW, TTI_NONE, (LPARAM)szBuffer);
SendMessageW(hwndTip, TTM_SETMAXTIPWIDTH, 0, 250);
}
VOID EndFriendlyDialog(HWND hwnd, PLOGOFF_DLG_CONTEXT pContext)
{
DeleteObject(pContext->hBrush);
DeleteObject(pContext->hImageStrip);
DeleteObject(pContext->hfFont);
/* Remove the subclass from the buttons */
for (int i = 0; i < NUMBER_OF_BUTTONS; i++)
{
SetWindowLongPtrW(GetDlgItem(hwnd, IDC_LOG_OFF_BUTTON + i),
GWLP_WNDPROC,
(LONG_PTR)pContext->OldButtonProc);
}
}
static BOOL IsFriendlyUIActive(VOID)
{
DWORD dwType = 0, dwValue = 0, dwSize = 0;
HKEY hKey = NULL;
LONG lRet = 0;
lRet = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
L"SYSTEM\\CurrentControlSet\\Control\\Windows",
0,
KEY_QUERY_VALUE,
&hKey);
if (lRet != ERROR_SUCCESS)
return FALSE;
/* First check an optional ReactOS specific override, that Windows does not check.
We use this to allow users pairing 'Server'-configuration with FriendlyLogoff.
Otherwise users would have to change CSDVersion or LogonType (side-effects AppCompat) */
dwValue = 0;
dwSize = sizeof(dwValue);
lRet = RegQueryValueExW(hKey,
L"EnforceFriendlyLogoff",
NULL,
&dwType,
(LPBYTE)&dwValue,
&dwSize);
if (lRet == ERROR_SUCCESS && dwType == REG_DWORD && dwValue != FRIENDLY_LOGOFF_IS_NOT_ENFORCED)
{
RegCloseKey(hKey);
return TRUE;
}
/* Check product version number */
dwValue = 0;
dwSize = sizeof(dwValue);
lRet = RegQueryValueExW(hKey,
L"CSDVersion",
NULL,
&dwType,
(LPBYTE)&dwValue,
&dwSize);
RegCloseKey(hKey);
if (lRet != ERROR_SUCCESS || dwType != REG_DWORD || dwValue != IS_PRODUCT_VERSION_WORKSTATION)
{
/* Allow Friendly UI only on Workstation */
return FALSE;
}
/* Check LogonType value */
lRet = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon",
0,
KEY_QUERY_VALUE,
&hKey);
if (lRet != ERROR_SUCCESS)
return FALSE;
dwValue = 0;
dwSize = sizeof(dwValue);
lRet = RegQueryValueExW(hKey,
L"LogonType",
NULL,
&dwType,
(LPBYTE)&dwValue,
&dwSize);
RegCloseKey(hKey);
if (lRet != ERROR_SUCCESS || dwType != REG_DWORD)
return FALSE;
return (dwValue != 0);
}
static VOID FancyLogoffOnInit(HWND hwnd, PLOGOFF_DLG_CONTEXT pContext)
{
HDC hdc = NULL;
LONG lfHeight = NULL;
hdc = GetDC(NULL);
lfHeight = -MulDiv(FONT_POINT_SIZE, GetDeviceCaps(hdc, LOGPIXELSY), 72);
ReleaseDC(NULL, hdc);
pContext->hfFont = CreateFontW(lfHeight, 0, 0, 0, FW_MEDIUM, FALSE, 0, 0, 0, 0, 0, 0, 0, L"MS Shell Dlg");
SendDlgItemMessageW(hwnd, IDC_LOG_OFF_TEXT_STATIC, WM_SETFONT, (WPARAM)pContext->hfFont, TRUE);
pContext->hBrush = CreateSolidBrush(DARK_GREY_COLOR);
pContext->hImageStrip = LoadBitmapW(shell32_hInstance, MAKEINTRESOURCEW(IDB_IMAGE_STRIP));
/* Gather old button func */
pContext->OldButtonProc = (WNDPROC)GetWindowLongPtrW(GetDlgItem(hwnd, IDC_LOG_OFF_BUTTON), GWLP_WNDPROC);
/* Set bIsButtonHot to false, create tooltips for each buttons and subclass the buttons */
for (int i = 0; i < NUMBER_OF_BUTTONS; i++)
{
pContext->bIsButtonHot[i] = FALSE;
SetWindowLongPtrW(GetDlgItem(hwnd, IDC_LOG_OFF_BUTTON + i),
GWLP_WNDPROC,
(LONG_PTR)OwnerDrawButtonSubclass);
CreateToolTipForButtons(IDC_LOG_OFF_BUTTON + i,
IDS_LOG_OFF_DESC + i,
hwnd,
IDS_LOG_OFF_TITLE + i);
}
}
/*************************************************************************
* LogOffDialogProc
*
* NOTES: Used to make the Log Off dialog work
*/
INT_PTR CALLBACK LogOffDialogProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
DRAWITEMSTRUCT* pdis = (DRAWITEMSTRUCT*)lParam;
PLOGOFF_DLG_CONTEXT pContext;
pContext = (PLOGOFF_DLG_CONTEXT)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
switch (uMsg)
{
case WM_INITDIALOG:
{
pContext = (PLOGOFF_DLG_CONTEXT)lParam;
SetWindowLongPtrW(hwnd, GWLP_USERDATA, (LONG_PTR)pContext);
if (pContext->bFriendlyUI)
FancyLogoffOnInit(hwnd, pContext);
return TRUE;
}
case WM_CLOSE:
EndDialog(hwnd, IDCANCEL);
break;
/*
* If the user deactivates the log off dialog (it loses its focus
* while the dialog is not being closed), then destroy the dialog
* box.
*/
case WM_ACTIVATE:
{
if (LOWORD(wParam) == WA_INACTIVE)
{
EndDialog(hwnd, IDCANCEL);
}
return FALSE;
}
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDC_LOG_OFF_BUTTON:
case IDOK:
ExitWindowsEx(EWX_LOGOFF, 0);
break;
case IDCANCEL:
EndDialog(hwnd, IDCANCEL);
break;
}
break;
case WM_DESTROY:
if (pContext->bFriendlyUI)
EndFriendlyDialog(hwnd, pContext);
return TRUE;
case WM_CTLCOLORSTATIC:
{
/* Either make background transparent or fill it with color for required static controls */
HDC hdcStatic = (HDC)wParam;
UINT StaticID = (UINT)GetWindowLongPtrW((HWND)lParam, GWL_ID);
switch (StaticID)
{
case IDC_LOG_OFF_TEXT_STATIC:
SetTextColor(hdcStatic, DARK_GREY_COLOR);
SetBkMode(hdcStatic, TRANSPARENT);
return (INT_PTR)GetStockObject(HOLLOW_BRUSH);
case IDC_LOG_OFF_STATIC:
case IDC_SWITCH_USER_STATIC:
SetTextColor(hdcStatic, LIGHT_GREY_COLOR);
SetBkMode(hdcStatic, TRANSPARENT);
return (LONG_PTR)pContext->hBrush;
}
return FALSE;
}
break;
case WM_DRAWITEM:
{
/* Draw bitmaps on required buttons */
switch (pdis->CtlID)
{
case IDC_LOG_OFF_BUTTON:
case IDC_SWITCH_USER_BUTTON:
return DrawIconOnOwnerDrawnButtons(pdis, pContext);
}
}
break;
default:
break;
}
return FALSE;
}
/*************************************************************************
* LogoffWindowsDialog [SHELL32.54]
*/
EXTERN_C int WINAPI LogoffWindowsDialog(HWND hWndOwner)
{
CComPtr<IUnknown> fadeHandler;
HWND parent = NULL;
DWORD LogoffDialogID = IDD_LOG_OFF;
LOGOFF_DLG_CONTEXT Context;
if (!CallShellDimScreen(&fadeHandler, &parent))
parent = hWndOwner;
Context.bFriendlyUI = IsFriendlyUIActive();
if (Context.bFriendlyUI)
{
LogoffDialogID = IDD_LOG_OFF_FANCY;
}
DialogBoxParamW(shell32_hInstance,
MAKEINTRESOURCEW(LogoffDialogID),
parent,
LogOffDialogProc,
(LPARAM)&Context);
return 0;
}
/*************************************************************************
* RestartDialog [SHELL32.59]
*/
int WINAPI RestartDialog(HWND hWndOwner, LPCWSTR lpstrReason, DWORD uFlags)
{
return RestartDialogEx(hWndOwner, lpstrReason, uFlags, 0);
}
/*************************************************************************
* ExitWindowsDialog_backup
*
* NOTES
* Used as a backup solution to shutdown the OS in case msgina.dll
* somehow cannot be found.
*/
VOID ExitWindowsDialog_backup(HWND hWndOwner)
{
TRACE("(%p)\n", hWndOwner);
if (ConfirmDialog(hWndOwner, IDS_SHUTDOWN_PROMPT, IDS_SHUTDOWN_TITLE))
{
EnablePrivilege(L"SeShutdownPrivilege", TRUE);
ExitWindowsEx(EWX_SHUTDOWN, 0);
EnablePrivilege(L"SeShutdownPrivilege", FALSE);
}
}
/*************************************************************************
* ExitWindowsDialog [SHELL32.60]
*
* NOTES
* exported by ordinal
*/
/*
* TODO:
* - Implement the ability to show either the Welcome Screen or the classic dialog boxes based upon the
* registry value: SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\LogonType.
*/
void WINAPI ExitWindowsDialog(HWND hWndOwner)
{
typedef DWORD (WINAPI *ShellShFunc)(HWND hParent, WCHAR *Username, BOOL bHideLogoff);
HINSTANCE msginaDll = LoadLibraryW(L"msgina.dll");
TRACE("(%p)\n", hWndOwner);
CComPtr<IUnknown> fadeHandler;
HWND parent;
if (!CallShellDimScreen(&fadeHandler, &parent))
parent = hWndOwner;
/* If the DLL cannot be found for any reason, then it simply uses a
dialog box to ask if the user wants to shut down the computer. */
if (!msginaDll)
{
TRACE("Unable to load msgina.dll.\n");
ExitWindowsDialog_backup(parent);
return;
}
ShellShFunc pShellShutdownDialog = (ShellShFunc)GetProcAddress(msginaDll, "ShellShutdownDialog");
if (pShellShutdownDialog)
{
/* Actually call the function */
DWORD returnValue = pShellShutdownDialog(parent, NULL, FALSE);
switch (returnValue)
{
case 0x01: /* Log off user */
{
ExitWindowsEx(EWX_LOGOFF, 0);
break;
}
case 0x02: /* Shut down */
{
EnablePrivilege(L"SeShutdownPrivilege", TRUE);
ExitWindowsEx(EWX_SHUTDOWN, 0);
EnablePrivilege(L"SeShutdownPrivilege", FALSE);
break;
}
case 0x03: /* Install Updates/Shutdown (?) */
{
break;
}
case 0x04: /* Reboot */
{
EnablePrivilege(L"SeShutdownPrivilege", TRUE);
ExitWindowsEx(EWX_REBOOT, 0);
EnablePrivilege(L"SeShutdownPrivilege", FALSE);
break;
}
case 0x10: /* Sleep */
{
if (IsPwrSuspendAllowed())
{
EnablePrivilege(L"SeShutdownPrivilege", TRUE);
SetSuspendState(FALSE, FALSE, FALSE);
EnablePrivilege(L"SeShutdownPrivilege", FALSE);
}
break;
}
case 0x40: /* Hibernate */
{
if (IsPwrHibernateAllowed())
{
EnablePrivilege(L"SeShutdownPrivilege", TRUE);
SetSuspendState(TRUE, FALSE, TRUE);
EnablePrivilege(L"SeShutdownPrivilege", FALSE);
}
break;
}
/* If the option is any other value */
default:
break;
}
}
else
{
/* If the function cannot be found, then revert to using the backup solution */
TRACE("Unable to find the 'ShellShutdownDialog' function");
ExitWindowsDialog_backup(parent);
}
FreeLibrary(msginaDll);
}
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