(***********************************************************************
** Who wants to know more about the method how I discovered all this
** may have a look at the following URL (German) or contact me via my
** forum:
**
** http://www.delphipraxis.net/topic62087,0,asc,0.html
***********************************************************************)
type
SHELLSTATE = record
Flags1: DWORD;
(*
BOOL fShowAllObjects : 1;
BOOL fShowExtensions : 1;
BOOL fNoConfirmRecycle : 1;
BOOL fShowSysFiles : 1;
BOOL fShowCompColor : 1;
BOOL fDoubleClickInWebView : 1;
BOOL fDesktopHTML : 1;
BOOL fWin95Classic : 1;
BOOL fDontPrettyPath : 1;
BOOL fShowAttribCol : 1; // No longer used, dead bit
BOOL fMapNetDrvBtn : 1;
BOOL fShowInfoTip : 1;
BOOL fHideIcons : 1;
BOOL fWebView : 1;
BOOL fFilter : 1;
BOOL fShowSuperHidden : 1;
BOOL fNoNetCrawling : 1;
*)
dwWin95Unused: DWORD; // Win95 only - no longer supported pszHiddenFileExts
uWin95Unused: UINT; // Win95 only - no longer supported cbHiddenFileExts
// Note: Not a typo! This is a persisted structure so we cannot use LPARAM
lParamSort: Integer;
iSortDirection: Integer;
version: UINT;
// new for win2k. need notUsed var to calc the right size of ie4 struct
// FIELD_OFFSET does not work on bit fields
uNotUsed: UINT; // feel free to rename and use
Flags2: DWORD;
(*
BOOL fSepProcess: 1;
// new for Whistler.
BOOL fStartPanelOn: 1; //Indicates if the Whistler StartPanel mode is ON or OFF.
BOOL fShowStartPage: 1; //Indicates if the Whistler StartPage on desktop is ON or OFF.
UINT fSpareFlags : 13;
*)
end;
LPSHELLSTATE = ^SHELLSTATE;
const
SSF_SHOWALLOBJECTS = $00000001;
SSF_SHOWEXTENSIONS = $00000002;
SSF_HIDDENFILEEXTS = $00000004;
SSF_SERVERADMINUI = $00000004;
SSF_SHOWCOMPCOLOR = $00000008;
SSF_SORTCOLUMNS = $00000010;
SSF_SHOWSYSFILES = $00000020;
SSF_DOUBLECLICKINWEBVIEW = $00000080;
SSF_SHOWATTRIBCOL = $00000100;
SSF_DESKTOPHTML = $00000200;
SSF_WIN95CLASSIC = $00000400;
SSF_DONTPRETTYPATH = $00000800;
SSF_SHOWINFOTIP = $00002000;
SSF_MAPNETDRVBUTTON = $00001000;
SSF_NOCONFIRMRECYCLE = $00008000;
SSF_HIDEICONS = $00004000;
SSF_FILTER = $00010000;
SSF_WEBVIEW = $00020000;
SSF_SHOWSUPERHIDDEN = $00040000;
SSF_SEPPROCESS = $00080000;
SSF_NONETCRAWLING = $00100000;
SSF_STARTPANELON = $00200000;
SSF_SHOWSTARTPAGE = $00400000;
procedure SHGetSetSettings(var lpss: SHELLSTATE; dwMask: DWORD; bSet: BOOL) stdcall;
external 'shell32.dll';
procedure SwitchStartpanelXP(xpstyle: Boolean);
var
lpss: SHELLSTATE;
bIsXPstyle: Boolean;
begin
ZeroMemory(@lpss, SizeOf(lpss));
// Retrieve current style
SHGetSetSettings(lpss, SSF_STARTPANELON, False);
// Check the current style
bIsXPstyle := (lpss.Flags2 and 2) = 2; // fStartPanelOn
// If a change occurred
if (bIsXPstyle <> xpstyle) then
begin
// If the user wants XP style then set it, else reset it
if (xpstyle) then
lpss.Flags2 := 2 // fStartPanelOn = 1
else
lpss.Flags2 := 0; // fStartPanelOn = 0
// Set new style
SHGetSetSettings(lpss, SSF_STARTPANELON, True);
// Notify desktop of the change
PostMessage(FindWindow('Progman', nil), WM_USER + $60, 0, 0);
end;
// Notify taskbar
PostMessage(FindWindow('Shell_TrayWnd', nil), WM_USER + $0D, 0, 0);
end;
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