single-click registry tweak?

On Sun, 30 Mar 2003 02:21:53 -0500, "Doug Knox MS-MVP"
wrote:

This information is stored in the Binary value ShellState in:

HKEY_CURRENT_USER\Software\Microsoft\Windows\Curr entVersion\Explorer

This value is only read at log on and saved at log off, unless you use the
GUI, or a DLL call to refresh the system. Changing it while you're logged
on will have no effect on the single or double click behavior.

Pressing F5 in Explorer effects such a change made with REGEDIT, and it
"sticks".

In particular, this info seems to be stored in the fifth byte of
"ShellState". That seems to be the beginning of a "SHELLSTATE" programming
structure. The sixth bit (00100000 = 0x20) of the first byte of a
SHELLSTATE structure is called "fDoubleClickInWebView". That's borne out
here since I can toggle the setting (with F5 refreshing) by switching my
"ShellState" between

24 00 00 00 33 ...

and

24 00 00 00 13 ...

The functions of the other bits and bytes in a SHELLSTATE structure are
documented by MS.
--
- Vince

Thanks for the information, Vince. I wasn't aware of this. Many of the
"per-user" settings require an API call, to refresh them immediately.

--
Doug Knox, MS-MVP Windows XP/ Windows Smart Display
Win 95/98/Me/XP Tweaks and Fixes
http://www.dougknox.com
--------------------------------
Associate Expert
ExpertZone - http://www.microsoft.com/windowsxp/expertzone
--------------------------------
Please reply only to the newsgroup so all may benefit.
Unsolicited e-mail is not answered.

"Vincent Fatica" wrote in message
news:3e872275$1@localhost...
On Sun, 30 Mar 2003 02:21:53 -0500, "Doug Knox MS-MVP"
wrote:

This information is stored in the Binary value ShellState in:

HKEY_CURRENT_USER\Software\Microsoft\Windows\Curr entVersion\Explorer

This value is only read at log on and saved at log off, unless you use
the
GUI, or a DLL call to refresh the system. Changing it while you're
logged
on will have no effect on the single or double click behavior.

Pressing F5 in Explorer effects such a change made with REGEDIT, and it
"sticks".

In particular, this info seems to be stored in the fifth byte of
"ShellState". That seems to be the beginning of a "SHELLSTATE"
programming
structure. The sixth bit (00100000 = 0x20) of the first byte of a
SHELLSTATE structure is called "fDoubleClickInWebView". That's borne out
here since I can toggle the setting (with F5 refreshing) by switching my
"ShellState" between

24 00 00 00 33 ...

and

24 00 00 00 13 ...

The functions of the other bits and bytes in a SHELLSTATE structure are
documented by MS.
--
- Vince

On Sun, 30 Mar 2003 11:59:33 -0500, Vincent Fatica
wrote:

In particular, this info seems to be stored in the fifth byte of
"ShellState".

Though that still seems correct, my earlier, further analysis may have been
off a bit (too broad). Looking more closely, all that seems certain is that
the fifth and sixth bytes of the registry's "ShellState" seem to contain a
"SHELLFLAGSTATE" structure ... 2 bytes containing 13 "bit-flags" (and 3
extras) whose functions are suggested by their names:

struct {
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;
BOOL fMapNetDrvBtn:1;
BOOL fShowInfoTip:1;
BOOL fHideIcons:1;
UINT fRestFlags:3;
} SHELLFLAGSTATE

--
- Vince

On Sun, 30 Mar 2003 01:08:13 -0600, "mrtee" hingelickeratnew.rr.com
wrote:

Doing it through the "Tools" menu within Explorer changes the registry. Why would you want to do it the hard way?

Maybe the person wants to be able to make the changes quicker.

You can keep the reg files on the desktop, run the one you want, and
have it changed for you much faster than using explorer.

HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Explorer
ShellState =3D=20

This is the definition of shellstate. You'll need to test as settings =
like this are normally stored in memory and the registry is only read at =
logon. For instance windows doesn't read this key when opening the =
change dialog as it uses it's memory copy. You would use the API =
function SHGetSetSettings to set it in a program. It's the =
fDoubleClickInWebView member.

typedef struct {
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;
BOOL fMapNetDrvBtn:1;
BOOL fShowInfoTip:1;
BOOL fHideIcons:1;
BOOL fWebView:1;
BOOL fFilter:1;
BOOL fShowSuperHidden:1;
BOOL fNoNetCrawling:1;
DWORD dwWin95Unused;
UINT uWin95Unused;
LONG lParamSort;
int iSortDirection;
UINT version;
UINT uNotUsed;
BOOL fSepProcess:1;
BOOL fStartPanelOn:1;
BOOL fShowStartPage:1;
UINT fSpareFlags:13;
} SHELLSTATE, *LPSHSHELLSTATE;
Members

fShowAllObjects=20
TRUE to show all objects, including hidden files and folders. FALSE =
to hide hidden files and folders.=20
fShowExtensions=20
TRUE to show file extensions, FALSE to hide them.=20
fNoConfirmRecycle=20
TRUE to show no confirmation dialog box when deleting items to the =
Recycle Bin, FALSE to display the confirmation dialog box.=20
fShowSysFiles=20
TRUE to show system files, FALSE to hide them.=20
fShowCompColor=20
TRUE to show encrypted or compressed NTFS files in color.=20
fDoubleClickInWebView=20
TRUE to require a double-click to open an item when in Web View.=20
fDesktopHTML=20
TRUE to use Active Desktop, FALSE otherwise.=20
fWin95Classic=20
TRUE to enforce Microsoft=AE Windows=AE 95 Shell behavior and =
restrictions.=20
fDontPrettyPath=20
TRUE to prevent the conversion of the path to all lowercase =
characters.=20
fShowAttribCol=20
Not used.=20
fMapNetDrvBtn=20
TRUE to display a Map Network Drive button.=20
fShowInfoTip=20
TRUE to show a pop-up description for folders and files.=20
fHideIcons=20
TRUE to hide desktop icons, FALSE to show them.=20
fWebView=20
TRUE to display as a Web View.=20
fFilter=20
Not used.=20
fShowSuperHidden=20
TRUE to show operating system files.=20
fNoNetCrawling=20
TRUE to disable automatic searching for network folders and =
printers.=20
dwWin95Unused=20
Not used.=20
uWin95Unused=20
Not used.=20
lParamSort=20
The column to sort by.=20
iSortDirection=20
Alphabetic sort direction for the column specified by lParamSort. =
Use 1 for an ascending sort, -1 for a descending sort.=20
version=20
Not used.=20
uNotUsed=20
Not used.=20
fSepProcess=20
TRUE to launch folder windows in separate processes, FALSE to launch =
in the same process.=20
fStartPanelOn=20
Windows XP only: TRUE to use the Windows XP-style Start menu, FALSE =
to use the classic Start menu.=20
fShowStartPage=20
Not used.=20
fSpareFlags=20
Not used.
Structure Information


--=20
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"Fred" wrote in message =
...
On Sun, 30 Mar 2003 01:08:13 -0600, "mrtee" hingelickeratnew.rr.com
wrote:
=20
Doing it through the "Tools" menu within Explorer changes the =
registry. Why would you want to do it the hard way?
=20
Maybe the person wants to be able to make the changes quicker.
=20
You can keep the reg files on the desktop, run the one you want, and
have it changed for you much faster than using explorer.