WS_EX_COMPOSITED style problem

[CyRius]

Heya!

I have a problem: if I create window with the $WS_EX_COMPOSITED style, then the window starts to lag badly, and does not respond anymore to the events (like $GUI_EVENT_CLOSE).

If I remove the ListView from the window it just works well.

Can somebody tell me, what I am doing wrong? (I would need both the style and the listview)

Can somebody solve this problem?

Ps. Take care, the script can be stoped only with CTRL+Break or CTRL+ALT+DEL

Greetz, CyRius

expandcollapse popup

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>
#include <GuiListView.au3>

Global $iGUI_CLOSE = 0
Global $listContent,$treeView,$labelTable

AutoItSetOption('GUIOnEventMode',1)

$hGUI = GUICreate('Window',600,320,Default,Default,Default,$WS_EX_COMPOSITED)
GUISetFont(Default,Default,Default,'Tahoma')
GUICtrlCreateMenu('File')

$treeView = GUICtrlCreateTreeView(0,0,150,300,BitOR(0x0001,0x0002,0x0004,0x0010,0x0020),$WS_EX_CLIENTEDGE)

$labelTable = GUICtrlCreateLabel('Label',150,0,450,20,BitOR(0x0200,0x0001))
GUICtrlSetFont($labelTable,Default,1200)
GUICtrlSetBkColor($labelTable,0xCCCCCC)

$listContent = GUICtrlCreateListView('',149,20,452,280)
_GUICtrlListView_SetExtendedListViewStyle($listContent,BitOR($LVS_EX_FULLROWSELECT,$LVS_EX_GRIDLINES))

GUISetOnEvent($GUI_EVENT_CLOSE,'_OnClose')
GUIRegisterMsg($WM_NOTIFY,'WM_NOTIFY')
GUISetState(@SW_SHOW)

While $iGUI_CLOSE = 0
    Sleep(100)
WEnd

Func WM_NOTIFY($hGUI,$iMsg,$wParam,$lParam)
    $tNMHDR = DllStructCreate($tagNMHDR,$lParam)
    $iCode = DllStructGetData($tNMHDR,'Code')
    If $iCode = $NM_DBLCLK Then
        $tInfo = DllStructCreate($tagNMITEMACTIVATE,$lParam)
        $iIndex = DllStructGetData($tInfo,'Index')
        Switch DllStructGetData($tNMHDR,'IDFrom')
            Case $listContent
            Case $treeView
        EndSwitch
    EndIf
    Return $GUI_RUNDEFMSG
EndFunc

Func _OnClose()
    $iGUI_CLOSE = 1
EndFunc

Edited March 14, 2010 by CyRius

[martin]

This sounds like a familiar problem. I'm fairly sure I have concluded in the past that you can't use WS_EX_COMPOSITED with a listview.

Why do you want that style? (Perhaps there is another way.)

Edited March 14, 2010 by martin

[CyRius]

Hmm, I never read that I can't use this style with a listview control ^^

I need it, because resizing/moving the window makes it blinking. It is not important, just it looks so lame without this style.

I know there is a function which enables you to "hide the content of the window during move/resize", but I never liked it:)

Do you say, that is impossible to make it work together?

[funkey]

Martin, I did not know that the problem is known. I made a bugreport 3 weeks ago.

http://www.autoitscript.com/trac/autoit/ticket/1492

I wanted to try to reduce flickering while resizing the gui.

Edited March 14, 2010 by funkey

[martin]

Martin, I did not know that the problem is known. I made a bugreport 3 weeks ago.

http://www.autoitscript.com/trac/autoit/ticket/1492

I wanted to try to reduce flickering while resizing the gui.

Well I think I mentioned the problem in the Koda thread once but it doesn't mean it has been reported as a bug.

If I create a form in Delphi with a listView and run the program the form and the listview resize with no flicker. If I get the extended style of the form it is 0x00010100. I don't know what 0x10000 is but if I try that in AutoIt it stops the script working.

Edited March 14, 2010 by martin

[CyRius]

@martin

Is there any other way to by-pass the "flickering"?

Edited March 14, 2010 by CyRius

[martin]

@martin

Is there any other way to by-pass the "flickering"?

Simplest, but possibly not acceptable, way is

expandcollapse popup

#include <ListViewConstants.au3>
#include <StructureConstants.au3>
#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>
#include <GuiListView.au3>
#include <constants.au3>
Global $iGUI_CLOSE = 0
Global $listContent,$treeView,$labelTable

AutoItSetOption('GUIOnEventMode',1)

$hGUI = GUICreate('Window',600,320,Default,Default,BitOr($GUI_SS_DEFAULT_GUI,$WS_SIZEBOX));,$WS_EX_COMPOSITED)
GUISetFont(Default,Default,Default,'Tahoma')
GUICtrlCreateMenu('File')
$listContent = GUICtrlCreateListView('34te4t',149,20,452,280)
_GUICtrlListView_SetExtendedListViewStyle($listContent,BitOR($LVS_EX_FULLROWSELECT,$LVS_EX_GRIDLINES))
$treeView = GUICtrlCreateTreeView(0,0,150,300,BitOR(0x0001,0x0002,0x0004,0x0010,0x0020),$WS_EX_CLIENTEDGE)

$labelTable = GUICtrlCreateLabel('Label',150,0,450,20,BitOR(0x0200,0x0001))
GUICtrlSetFont($labelTable,Default,1200)
GUICtrlSetBkColor($labelTable,0xCCCCCC)


;GUICtrlSetState($listContent,$GUI_DISABLE)

GUISetOnEvent($GUI_EVENT_CLOSE,'_OnClose')
GUIRegisterMsg($WM_NOTIFY,'WM_NOTIFY')
Global Const $WM_ENTERSIZEMOVE = 0x231, $WM_EXITSIZEMOVE = 0x232

GUIRegisterMsg($WM_ENTERSIZEMOVE,"EnterSM")
GUIRegisterMsg($WM_EXITSIZEMOVE,"ExitSM")
GUISetState(@SW_SHOW)

While $iGUI_CLOSE = 0
    Sleep(100)
WEnd

Func WM_NOTIFY($hGUI,$iMsg,$wParam,$lParam)
    $tNMHDR = DllStructCreate($tagNMHDR,$lParam)
    $iCode = DllStructGetData($tNMHDR,'Code')
    If $iCode = $NM_DBLCLK Then
    $tInfo = DllStructCreate($tagNMITEMACTIVATE,$lParam)
    $iIndex = DllStructGetData($tInfo,'Index')
    Switch DllStructGetData($tNMHDR,'IDFrom')
    Case $listContent
    Case $treeView
    EndSwitch
    EndIf
    Return $GUI_RUNDEFMSG
EndFunc

Func _OnClose()
    $iGUI_CLOSE = 1
EndFunc

Func EnterSM($hW,$iM,$wP,$lP)
    guictrlsetstate($listContent,$GUI_HIDE)
    Local $estate = _winapi_setwindowlong($hGui,$GWL_EXSTYLE,$WS_EX_COMPOSITED)

EndFunc


Func ExitSM($hW,$iM,$wP,$lP)
    guictrlsetstate($listContent,$GUI_SHOW)
    Local $estate = _winapi_setwindowlong($hGui,$GWL_EXSTYLE,0)


EndFunc

EDIT: removed a daft idea:>

Edited March 14, 2010 by martin

[CyRius]

@martin

Hehe, this looks crappy, but thank you very much xD

I will use this code until, somebody will fix this bug (if it can be fixed)

This way the problem is solved (temporary) ^^

Greetings, CyRius

[martin]

@martin

Hehe, this looks crappy, but thank you very much xD

I will use this code until, somebody will fix this bug (if it can be fixed)

This way the problem is solved (temporary) ^^

Greetings, CyRius

Yes, crappy is true

A listbox doesn't have this problem so if you could use one instead it might be a better solution.

[CyRius]

I can't use it because I have more columns (changing).. And I am pretty sure about ListBox control cannot handle multiple columns.

I wonder what is causing this bug using both the style and the control? (why it is incompatible with ListView?)

Edited March 14, 2010 by CyRius

[CyRius]

SOLUTION:

If we remove the header (the column names) of the ListViews the $WS_ES_COMPOSITED style works very well:P

Edited March 23, 2010 by CyRius

[funkey]

This is no solution for me. I need the header for sorting the columns.

[martin]

This is no solution for me. I need the header for sorting the columns.

@Cryius - Interesting to know that.

@funkey. You could now improve the "crappy" solution I posted but improved with this knowledge.

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <Constants.au3>
#include <listviewconstants.au3>
#include <winapi.au3>

Opt('MustDeclareVars', 1)
Global $listview0, $Gui
Example()

Func Example()
    Local $listview, $button, $item1, $item2, $item3, $input1, $msg
    Opt("GuiResizeMode", $GUI_DOCKTOP + $GUI_DOCKLEFT + $GUI_DOCKRIGHT + $GUI_DOCKHEIGHT)
    $Gui = GUICreate("listview items", 220, 350, 100, 200, BitOR($GUI_SS_DEFAULT_GUI, $WS_SIZEBOX))
    GUISetBkColor(0x00E0FFFF) ; will change background color

    GUICtrlCreateLabel("", 11, 11, 198, 16)
    GUICtrlSetBkColor(-1, 0xEEEEEE)
    GUICtrlCreateLabel("", 10, 10, 200, 18)
    GUICtrlSetBkColor(-1, 0x9999BB)
    $listview0 = GUICtrlCreateListView("col1 |col2|col3 ", 10, 10, 200, 18)
    $listview = GUICtrlCreateListView("col1 |col2|col3 ", 10, 27, 200, 140, BitOR($GUI_SS_DEFAULT_LISTVIEW, $LVS_NOCOLUMNHEADER));,$LVS_SORTDESCENDING)
    
    $button = GUICtrlCreateButton("Value?", 75, 170, 70, 20)
    $item1 = GUICtrlCreateListViewItem("item2|col22|col23", $listview)
    $item2 = GUICtrlCreateListViewItem("item1|col12|col13", $listview)
    $item3 = GUICtrlCreateListViewItem("item3|col32|col33", $listview)
    $input1 = GUICtrlCreateInput("", 20, 200, 150)
    GUICtrlSetState(-1, $GUI_DROPACCEPTED) ; to allow drag and dropping
    GUISetState()
    GUIRegisterMsg(0x0231, "EnterSM");$WM_ENTERSIZEMOVE
    GUIRegisterMsg(0x0232, "ExitSM");$WM_EXITSIZEMOVE
    Sleep(2000)
    
    GUICtrlSetData($item2, "ITEM1")
    GUICtrlSetData($item3, "||COL33")
    GUICtrlDelete($item1)

    Do
        $msg = GUIGetMsg()
        
        Select
            Case $msg = $button
                MsgBox(0, "listview item", GUICtrlRead(GUICtrlRead($listview)), 2)
            Case $msg = $listview
                MsgBox(0, "listview", "clicked=" & GUICtrlGetState($listview), 2)
        EndSelect
    Until $msg = $GUI_EVENT_CLOSE
EndFunc ;==>Example

Func EnterSM($hW, $iM, $iW, $iP)
    GUICtrlSetState($listview0, $GUI_HIDE)
    _WinAPI_SetWindowLong ($Gui, $GWL_EXSTYLE, $WS_EX_COMPOSITED)
    
EndFunc ;==>EnterSM

Func ExitSM($hW, $iM, $iW, $iP)
    _WinAPI_SetWindowLong ($Gui, $GWL_EXSTYLE, 0)
    GUICtrlSetState($listview0, $GUI_SHOW)
EndFunc ;==>ExitSM

And you could get the information on the column widths to only use labels and not need the dummy header. I think compared to your tab udf that would be quite easy.

[funkey]

Good idea martin! I will have a look on it.

You could also lock the gui during resizing.

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <Constants.au3>
#include <listviewconstants.au3>
#include <winapi.au3>

Opt('MustDeclareVars', 1)
Global $listview0, $Gui
Example()

Func Example()
 Local $listview, $button, $item1, $item2, $item3, $input1, $msg
 Opt("GuiResizeMode", $GUI_DOCKTOP + $GUI_DOCKLEFT + $GUI_DOCKRIGHT + $GUI_DOCKHEIGHT)
 $Gui = GUICreate("listview items", 220, 350, 100, 200, BitOR($GUI_SS_DEFAULT_GUI, $WS_SIZEBOX))
 GUISetBkColor(0x00E0FFFF) ; will change background color

 $listview0 = GUICtrlCreateListView("col1 |col2|col3 ", 10, 10, 200, 18)
 $listview = GUICtrlCreateListView("col1 |col2|col3 ", 10, 27, 200, 140, BitOR($GUI_SS_DEFAULT_LISTVIEW, $LVS_NOCOLUMNHEADER));,$LVS_SORTDESCENDING)

 $button = GUICtrlCreateButton("Value?", 75, 170, 70, 20)
 $item1 = GUICtrlCreateListViewItem("item2|col22|col23", $listview)
 $item2 = GUICtrlCreateListViewItem("item1|col12|col13", $listview)
 $item3 = GUICtrlCreateListViewItem("item3|col32|col33", $listview)
 $input1 = GUICtrlCreateInput("", 20, 200, 150)
 GUICtrlSetState(-1, $GUI_DROPACCEPTED) ; to allow drag and dropping
 GUISetState()
 GUIRegisterMsg(0x0231, "EnterSM");$WM_ENTERSIZEMOVE
 GUIRegisterMsg(0x0232, "ExitSM");$WM_EXITSIZEMOVE
 Sleep(2000)

 GUICtrlSetData($item2, "ITEM1")
 GUICtrlSetData($item3, "||COL33")
 GUICtrlDelete($item1)

 Do
  $msg = GUIGetMsg()

  Select
   Case $msg = $button
    MsgBox(0, "listview item", GUICtrlRead(GUICtrlRead($listview)), 2)
   Case $msg = $listview
    MsgBox(0, "listview", "clicked=" & GUICtrlGetState($listview), 2)
  EndSelect
 Until $msg = $GUI_EVENT_CLOSE
EndFunc   ;==>Example

Func EnterSM($hW, $iM, $iW, $iP)
 GUISetState(@SW_LOCK)
 GUICtrlSetState($listview0, $GUI_HIDE)
 _WinAPI_SetWindowLong($Gui, $GWL_EXSTYLE, $WS_EX_COMPOSITED)

EndFunc   ;==>EnterSM

Func ExitSM($hW, $iM, $iW, $iP)
 _WinAPI_SetWindowLong($Gui, $GWL_EXSTYLE, 0)
 GUICtrlSetState($listview0, $GUI_SHOW)
 GUISetState(@SW_UNLOCK)
EndFunc   ;==>ExitSM

[martin]

Good idea martin! I will have a look on it.

You could also lock the gui during resizing.

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <Constants.au3>
#include <listviewconstants.au3>
#include <winapi.au3>

Opt('MustDeclareVars', 1)
Global $listview0, $Gui
Example()

Func Example()
 Local $listview, $button, $item1, $item2, $item3, $input1, $msg
 Opt("GuiResizeMode", $GUI_DOCKTOP + $GUI_DOCKLEFT + $GUI_DOCKRIGHT + $GUI_DOCKHEIGHT)
 $Gui = GUICreate("listview items", 220, 350, 100, 200, BitOR($GUI_SS_DEFAULT_GUI, $WS_SIZEBOX))
 GUISetBkColor(0x00E0FFFF) ; will change background color

 $listview0 = GUICtrlCreateListView("col1 |col2|col3 ", 10, 10, 200, 18)
 $listview = GUICtrlCreateListView("col1 |col2|col3 ", 10, 27, 200, 140, BitOR($GUI_SS_DEFAULT_LISTVIEW, $LVS_NOCOLUMNHEADER));,$LVS_SORTDESCENDING)

 $button = GUICtrlCreateButton("Value?", 75, 170, 70, 20)
 $item1 = GUICtrlCreateListViewItem("item2|col22|col23", $listview)
 $item2 = GUICtrlCreateListViewItem("item1|col12|col13", $listview)
 $item3 = GUICtrlCreateListViewItem("item3|col32|col33", $listview)
 $input1 = GUICtrlCreateInput("", 20, 200, 150)
 GUICtrlSetState(-1, $GUI_DROPACCEPTED) ; to allow drag and dropping
 GUISetState()
 GUIRegisterMsg(0x0231, "EnterSM");$WM_ENTERSIZEMOVE
 GUIRegisterMsg(0x0232, "ExitSM");$WM_EXITSIZEMOVE
 Sleep(2000)

 GUICtrlSetData($item2, "ITEM1")
 GUICtrlSetData($item3, "||COL33")
 GUICtrlDelete($item1)

 Do
 $msg = GUIGetMsg()

 Select
 Case $msg = $button
 MsgBox(0, "listview item", GUICtrlRead(GUICtrlRead($listview)), 2)
 Case $msg = $listview
 MsgBox(0, "listview", "clicked=" & GUICtrlGetState($listview), 2)
 EndSelect
 Until $msg = $GUI_EVENT_CLOSE
EndFunc ;==>Example

Func EnterSM($hW, $iM, $iW, $iP)
 GUISetState(@SW_LOCK)
 GUICtrlSetState($listview0, $GUI_HIDE)
 _WinAPI_SetWindowLong($Gui, $GWL_EXSTYLE, $WS_EX_COMPOSITED)

EndFunc ;==>EnterSM

Func ExitSM($hW, $iM, $iW, $iP)
 _WinAPI_SetWindowLong($Gui, $GWL_EXSTYLE, 0)
 GUICtrlSetState($listview0, $GUI_SHOW)
 GUISetState(@SW_UNLOCK)
EndFunc ;==>ExitSM

That works well but I would prefer it if there was a frame which showed the window extremes while you resized.

I notice there is a listview extended style $LVS_EX_DOUBLEBUFFER which I thought might be a better solution than using $WS_EX_COMPOSITED for the window. I tried it but it doesn't reduce the flicker for me.

[trancexx]

I notice there is a listview extended style $LVS_EX_DOUBLEBUFFER which I thought might be a better solution than using $WS_EX_COMPOSITED for the window. I tried it but it doesn't reduce the flicker for me.

It's not supposed to. That style reduces flicker when you resize columns, not the whole listview.