Taskbar problems

[Terenz]

Hi guys,

I need to hide the taskbar when i open a default folder with autoit. Searching on the forum i have found many method, ControlHide + @SW_HIDE, _WinAPI_FindWindow + @SW_HIDE, WinSetTrans at 0. Everyone work but only in theory, the taskbar is hidden but when i open the folder i have this:

So the question is:

How to really hide the taskbar and make that space usable?

Thanks for any help

Edited September 4, 2013 by Terenz

[Danyfirex]

Maybe this can Help.

#include <WinAPI.au3>
#include <WindowsConstants.au3>

$iPrevState = LockTaskBar(1)

Func LockTaskBar($iLock)
If @OSVersion <> "WIN_7" Then
        MsgBox(16,"Onyl on Windows 7", "The taskbar can only be locked this way in Windows 7 !")
        Return
    EndIf

    Local $iPrevState = RegRead("HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced", "TaskbarSizeMove")

    $hTrayWnd = WinGetHandle("[CLASS:Shell_TrayWnd]")
    If _WinAPI_GetClassName($hTrayWnd) <> "Shell_TrayWnd" Then Exit
    If $iPrevState = $iLock Then _SendMessage($hTrayWnd, $WM_COMMAND, 424, 0)
    Return 1-$iPrevState

EndFunc   ;==>LockTaskBar

saludos

[Terenz]

In what way that script can help? I need to hide the taskbar without that hole, not lock it

[Melba23]

Terenz,

Search the forum for the DLL call "SetWorkArea" - it tells Windows how big an area it can cover and ususally excludes the taskbar, even if it is hidden. There is another DLL call "GetWorkArea" which will give you the coordinates needed when you reset the size later.

M23

[Danyfirex]

Sorry. ¬¬ I only tried to help. 

[Terenz]

Hi Melba, that is a workaround of the problem, make the folder bigger instead of use maximize on the folder. I don't belive there isn't a way to hide taskbar like Windows do with auto-hide
 
@Danyfirex don't sorry, i'll apprecciate any type of help

Edited September 4, 2013 by Terenz

[Terenz]

Ok, the "best-correct method" to automate the taskbar is to use:
SHAppBarMessage
I don't have found an example for add a newstatus to the taskbar, only for retrive information.
My idea was autohide the taskbar ( so the window can be maximized correclty ) using ABM_SETAUTOHIDEBAR and maybe send always hide so if the mouse go over it the taskbar will not appear...this on paper. Someone can help me with this? Thanks

Edited September 4, 2013 by Terenz

[Terenz]

For intrested, this is a C# of what i'll try to reproduce

Source: Stackoverflow

expandcollapse popup

[DllImport("user32.dll", CharSet = CharSet.Auto)]
    public static extern IntPtr FindWindow(string strClassName, string strWindowName);

[DllImport("shell32.dll")]
    public static extern UInt32 SHAppBarMessage(UInt32 dwMessage, ref APPBARDATA pData);

public enum AppBarMessages
    {
        New =
        0x00000000,
        Remove =
        0x00000001,
        QueryPos =
        0x00000002,
        SetPos =
        0x00000003,
        GetState =
        0x00000004,
        GetTaskBarPos =
        0x00000005,
        Activate =
        0x00000006,
        GetAutoHideBar =
        0x00000007,
        SetAutoHideBar =
        0x00000008,
        WindowPosChanged =
        0x00000009,
        SetState =
        0x0000000a
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct APPBARDATA
    {
        public UInt32 cbSize;
        public IntPtr hWnd;
        public UInt32 uCallbackMessage;
        public UInt32 uEdge;
        public Rectangle rc;
        public Int32 lParam;
    }

    public enum AppBarStates
    {
        AutoHide =
        0x00000001,
        AlwaysOnTop =
        0x00000002
    }

/// <summary>
    /// Set the Taskbar State option
    /// </summary>
    /// <param name="option">AppBarState to activate</param>
    public void SetTaskbarState(AppBarStates option)
    {
        APPBARDATA msgData = new APPBARDATA();
        msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
        msgData.hWnd = FindWindow("System_TrayWnd", null);
        msgData.lParam = (Int32)(option);
        SHAppBarMessage((UInt32)AppBarMessages.SetState, ref msgData);
    }

    /// <summary>
    /// Gets the current Taskbar state
    /// </summary>
    /// <returns>current Taskbar state</returns>
    public AppBarStates GetTaskbarState()
    {
        APPBARDATA msgData = new APPBARDATA();
        msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
        msgData.hWnd = FindWindow("System_TrayWnd", null);
        return (AppBarStates)SHAppBarMessage((UInt32)AppBarMessages.GetState, ref msgData);

When the code above is implemented just set the Taskbar to autohide by:

SetTaskbarState(AppBarStates.AutoHide);

Get the current state by:

AppBarStates currentState = GetTaskbarState();

#END

I have found also a very old library ( 2006 ) in autoit, called >AppBar UDF. Inside there is a Func called _AppbarAutoHideBarSet, but seems not work, maybe need an update?

With my limited knowledge i don't think i can be useful for accomplish this, waiting for someone i'll continue to search and if i'll found something i'll post here.

Edited September 4, 2013 by Terenz

[Danyfirex]

For autoHide this work.

Global Const $ABS_AUTOHIDE = 0x1
Global $pabd = DllStructCreate("dword;int;uint;uint;int;int;int;int;int")
DllStructSetData($pabd,1,DllStructGetSize($pabd)) ;cbSize
DllStructSetData($pabd,2,ControlGetHandle("Start","","Shell_TrayWnd")) ;hWnd



DllStructSetData($pabd,9,$ABS_AUTOHIDE) ;????,???????
SHAppBarMessage($ABM_SETSTATE,$pabd) ;??ABM_SETSTATE??????


Func SHAppBarMessage($Message,ByRef $pabd)
$lResult = DllCall("shell32.dll","int","SHAppBarMessage","int",$Message,"ptr",DllStructGetPtr($pabd))
If Not @error Then
If $lResult[0] Then
Return $lResult[0]
EndIf
EndIf
SetError(1)
Return False
EndFunc

saludos

[timmy2]

For autoHide this work.

Global Const $ABS_AUTOHIDE = 0x1
Global $pabd = DllStructCreate("dword;int;uint;uint;int;int;int;int;int")
DllStructSetData($pabd,1,DllStructGetSize($pabd)) ;cbSize
DllStructSetData($pabd,2,ControlGetHandle("Start","","Shell_TrayWnd")) ;hWnd



DllStructSetData($pabd,9,$ABS_AUTOHIDE) ;????,???????
SHAppBarMessage($ABM_SETSTATE,$pabd) ;??ABM_SETSTATE??????


Func SHAppBarMessage($Message,ByRef $pabd)
$lResult = DllCall("shell32.dll","int","SHAppBarMessage","int",$Message,"ptr",DllStructGetPtr($pabd))
If Not @error Then
If $lResult[0] Then
Return $lResult[0]
EndIf
EndIf
SetError(1)
Return False
EndFunc

saludos

 

Won't compile without error.  Below "SHAppBarMessage($ABM_SETSTATE,$pabd)" it says "$ABM_SETSTATE: possibly used before declaration, undeclared global variable.

[sylremo]

Apologizing for bumping an old post, I just want to provide a cleaner snippet, which is more intuitive based on MSDOC's APPBARDATA: https://docs.microsoft.com/en-us/windows/win32/api/shellapi/ns-shellapi-appbardata
 

ToggleTaskbarAutoHide()
MsgBox(262144, '', 'Taskbar autohide toggled')
ToggleTaskbarAutoHide()


Func ToggleTaskbarAutoHide()

    Local Const $ABM_GETSTATE = 0x00000004
    Local Const $ABM_SETSTATE = 0x0000000A
    Local Const $ABS_AUTOHIDE = 0x00000001
    Local Const $ABS_ALWAYSONTOP = 0x00000002

    Local $tAPPBARDATA = DllStructCreate('dword;int;uint;uint;int[4];int')
    DllStructSetData($tAPPBARDATA, 1, DllStructGetSize($tAPPBARDATA))
    DllStructSetData($tAPPBARDATA, 2, WinGetHandle('[CLASS:Shell_TrayWnd]'))

    Local $iCurrentState = DllCall('shell32.dll', 'int', 'SHAppBarMessage', 'dword', $ABM_GETSTATE, 'ptr', DllStructGetPtr($tAPPBARDATA))

    Local $iNewState = $iCurrentState[0] ? $ABS_ALWAYSONTOP : $ABS_AUTOHIDE

    DllStructSetData($tAPPBARDATA, 6, $iNewState)

    DllCall('shell32.dll', 'int', 'SHAppBarMessage', 'dword', $ABM_SETSTATE, 'ptr', DllStructGetPtr($tAPPBARDATA))

EndFunc

 

Edited April 29, 2023 by sylremo