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marko001

Scroll bar disappear before showing everything

4 posts in this topic

Hi all,

look at the code:

#AutoIt3Wrapper_au3check_parameters=-d -w 1 -w 2 -w 3 -w 4 -w 5 -w 6
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <StructureConstants.au3>
#include <GUIScrollBars.au3>
#include <ScrollBarConstants.au3>

Opt("MustDeclareVars", 1)

_Main()

Func _Main()
    Local $nFileMenu, $nExititem, $GUIMsg, $hGUI, $h_cGUI, $h_cGUI2
    Local $listview, $button

    $hGUI = GUICreate("ScrollBar Example", 400, 400, -1, -1, BitOR($WS_MINIMIZEBOX, $WS_CAPTION, $WS_POPUP, $WS_SYSMENU, $WS_SIZEBOX))
    GUISetBkColor(0x88AABB)


    $nFileMenu = GUICtrlCreateMenu("File")
    $nExititem = GUICtrlCreateMenuItem("Exit", $nFileMenu)
    $listview = GUICtrlCreateListView("col1  |col2|col3  ", 10, 10, 200, 150);,$LVS_SORTDESCENDING)
    $button = GUICtrlCreateButton("Value?", 75, 170, 70, 20)
    GUICtrlSetResizing($button, $GUI_DOCKALL)
    For $x = 1 To 30
        GUICtrlCreateListViewItem("item" & $x & "|col2|col3", $listview)
    Next
    GUICtrlSetResizing($listview, $GUI_DOCKALL)

    $h_cGUI = GUICreate("Child GUI", 800, 400, 10, 220, $WS_CHILD, $WS_EX_CLIENTEDGE, $hGUI)
    GUICtrlCreateButton("a button", 10, 10, 90, 20)
    GUISetBkColor(0X006400)
    GUISetState()
    GUICtrlSetResizing($h_cGUI, $GUI_DOCKALL)

    GUISwitch($hGUI)

    $h_cGUI2 = GUICreate("Child GUI", 200, 200, 215, 10, $WS_CHILD, $WS_EX_CLIENTEDGE, $hGUI)
    GUICtrlCreateButton("a button", 10, 10, 90, 20)
    GUISetBkColor(0X006400)
    GUISetState()
    GUICtrlSetResizing($h_cGUI2, $GUI_DOCKALL)

    GUISwitch($hGUI)

    GUIRegisterMsg($WM_SIZE, "WM_SIZE")
    GUIRegisterMsg($WM_VSCROLL, "WM_VSCROLL")
    GUIRegisterMsg($WM_HSCROLL, "WM_HSCROLL")

    GUISetState()

    _GUIScrollBars_Init($hGUI)
    _GUIScrollBars_Init($h_cGUI)

    While 1
        $GUIMsg = GUIGetMsg()

        Switch $GUIMsg
            Case $GUI_EVENT_CLOSE, $nExititem
                ExitLoop
        EndSwitch
    WEnd

    Exit
EndFunc   ;==>_Main

Func WM_SIZE($hWnd, $Msg, $wParam, $lParam)
    #forceref $Msg, $wParam
    Local $index = -1, $yChar, $xChar, $xClientMax, $xClient, $yClient, $ivMax
    For $x = 0 To UBound($aSB_WindowInfo) - 1
        If $aSB_WindowInfo[$x][0] = $hWnd Then
            $index = $x
            $xClientMax = $aSB_WindowInfo[$index][1]
            $xChar = $aSB_WindowInfo[$index][2]
            $yChar = $aSB_WindowInfo[$index][3]
            $ivMax = $aSB_WindowInfo[$index][7]
            ExitLoop
        EndIf
    Next
    If $index = -1 Then Return 0

    Local $tSCROLLINFO = DllStructCreate($tagSCROLLINFO)

    ; Retrieve the dimensions of the client area.
    $xClient = BitAND($lParam, 0x0000FFFF)
    $yClient = BitShift($lParam, 16)
    $aSB_WindowInfo[$index][4] = $xClient
    $aSB_WindowInfo[$index][5] = $yClient

    ; Set the vertical scrolling range and page size
    DllStructSetData($tSCROLLINFO, "fMask", BitOR($SIF_RANGE, $SIF_PAGE))
    DllStructSetData($tSCROLLINFO, "nMin", 0)
    DllStructSetData($tSCROLLINFO, "nMax", $ivMax)
    DllStructSetData($tSCROLLINFO, "nPage", $yClient / $yChar)
    _GUIScrollBars_SetScrollInfo($hWnd, $SB_VERT, $tSCROLLINFO)

    ; Set the horizontal scrolling range and page size
    DllStructSetData($tSCROLLINFO, "fMask", BitOR($SIF_RANGE, $SIF_PAGE))
    DllStructSetData($tSCROLLINFO, "nMin", 0)
    DllStructSetData($tSCROLLINFO, "nMax", 2 + $xClientMax / $xChar)
    DllStructSetData($tSCROLLINFO, "nPage", $xClient / $xChar)
    _GUIScrollBars_SetScrollInfo($hWnd, $SB_HORZ, $tSCROLLINFO)

    Return $GUI_RUNDEFMSG
EndFunc   ;==>WM_SIZE

Func WM_HSCROLL($hWnd, $Msg, $wParam, $lParam)
    #forceref $Msg, $lParam
    Local $nScrollCode = BitAND($wParam, 0x0000FFFF)

    Local $index = -1, $xChar, $xPos
    Local $Min, $Max, $Page, $Pos, $TrackPos

    For $x = 0 To UBound($aSB_WindowInfo) - 1
        If $aSB_WindowInfo[$x][0] = $hWnd Then
            $index = $x
            $xChar = $aSB_WindowInfo[$index][2]
            ExitLoop
        EndIf
    Next
    If $index = -1 Then Return 0

;~  ; Get all the horizontal scroll bar information
    Local $tSCROLLINFO = _GUIScrollBars_GetScrollInfoEx($hWnd, $SB_HORZ)
    $Min = DllStructGetData($tSCROLLINFO, "nMin")
    $Max = DllStructGetData($tSCROLLINFO, "nMax")
    $Page = DllStructGetData($tSCROLLINFO, "nPage")
    ; Save the position for comparison later on
    $xPos = DllStructGetData($tSCROLLINFO, "nPos")
    $Pos = $xPos
    $TrackPos = DllStructGetData($tSCROLLINFO, "nTrackPos")
    #forceref $Min, $Max
    Switch $nScrollCode

        Case $SB_LINELEFT ; user clicked left arrow
            DllStructSetData($tSCROLLINFO, "nPos", $Pos - 1)

        Case $SB_LINERIGHT ; user clicked right arrow
            DllStructSetData($tSCROLLINFO, "nPos", $Pos + 1)

        Case $SB_PAGELEFT ; user clicked the scroll bar shaft left of the scroll box
            DllStructSetData($tSCROLLINFO, "nPos", $Pos - $Page)

        Case $SB_PAGERIGHT ; user clicked the scroll bar shaft right of the scroll box
            DllStructSetData($tSCROLLINFO, "nPos", $Pos + $Page)

        Case $SB_THUMBTRACK ; user dragged the scroll box
            DllStructSetData($tSCROLLINFO, "nPos", $TrackPos)
    EndSwitch

;~    // Set the position and then retrieve it.  Due to adjustments
;~    //   by Windows it may not be the same as the value set.

    DllStructSetData($tSCROLLINFO, "fMask", $SIF_POS)
    _GUIScrollBars_SetScrollInfo($hWnd, $SB_HORZ, $tSCROLLINFO)
    _GUIScrollBars_GetScrollInfo($hWnd, $SB_HORZ, $tSCROLLINFO)
    ;// If the position has changed, scroll the window and update it
    $Pos = DllStructGetData($tSCROLLINFO, "nPos")
    If ($Pos <> $xPos) Then _GUIScrollBars_ScrollWindow($hWnd, $xChar * ($xPos - $Pos), 0)
    Return $GUI_RUNDEFMSG
EndFunc   ;==>WM_HSCROLL

Func WM_VSCROLL($hWnd, $Msg, $wParam, $lParam)
    #forceref $Msg, $wParam, $lParam
    Local $nScrollCode = BitAND($wParam, 0x0000FFFF)
    Local $index = -1, $yChar, $yPos
    Local $Min, $Max, $Page, $Pos, $TrackPos

    For $x = 0 To UBound($aSB_WindowInfo) - 1
        If $aSB_WindowInfo[$x][0] = $hWnd Then
            $index = $x
            $yChar = $aSB_WindowInfo[$index][3]
            ExitLoop
        EndIf
    Next
    If $index = -1 Then Return 0


    ; Get all the vertial scroll bar information
    Local $tSCROLLINFO = _GUIScrollBars_GetScrollInfoEx($hWnd, $SB_VERT)
    $Min = DllStructGetData($tSCROLLINFO, "nMin")
    $Max = DllStructGetData($tSCROLLINFO, "nMax")
    $Page = DllStructGetData($tSCROLLINFO, "nPage")
    ; Save the position for comparison later on
    $yPos = DllStructGetData($tSCROLLINFO, "nPos")
    $Pos = $yPos
    $TrackPos = DllStructGetData($tSCROLLINFO, "nTrackPos")

    Switch $nScrollCode
        Case $SB_TOP ; user clicked the HOME keyboard key
            DllStructSetData($tSCROLLINFO, "nPos", $Min)

        Case $SB_BOTTOM ; user clicked the END keyboard key
            DllStructSetData($tSCROLLINFO, "nPos", $Max)

        Case $SB_LINEUP ; user clicked the top arrow
            DllStructSetData($tSCROLLINFO, "nPos", $Pos - 1)

        Case $SB_LINEDOWN ; user clicked the bottom arrow
            DllStructSetData($tSCROLLINFO, "nPos", $Pos + 1)

        Case $SB_PAGEUP ; user clicked the scroll bar shaft above the scroll box
            DllStructSetData($tSCROLLINFO, "nPos", $Pos - $Page)

        Case $SB_PAGEDOWN ; user clicked the scroll bar shaft below the scroll box
            DllStructSetData($tSCROLLINFO, "nPos", $Pos + $Page)

        Case $SB_THUMBTRACK ; user dragged the scroll box
            DllStructSetData($tSCROLLINFO, "nPos", $TrackPos)
    EndSwitch

;~    // Set the position and then retrieve it.  Due to adjustments
;~    //   by Windows it may not be the same as the value set.

    DllStructSetData($tSCROLLINFO, "fMask", $SIF_POS)
    _GUIScrollBars_SetScrollInfo($hWnd, $SB_VERT, $tSCROLLINFO)
    _GUIScrollBars_GetScrollInfo($hWnd, $SB_VERT, $tSCROLLINFO)
    ;// If the position has changed, scroll the window and update it
    $Pos = DllStructGetData($tSCROLLINFO, "nPos")

    If ($Pos <> $yPos) Then
        _GUIScrollBars_ScrollWindow($hWnd, 0, $yChar * ($yPos - $Pos))
        $yPos = $Pos
    EndIf

    Return $GUI_RUNDEFMSG

EndFunc   ;==>WM_VSCROLL

As you can see the scroll bar disappear (scrolling to right or down) *before* everything to appear.

But if you resize manually the window you can see the whole green box inside.

Is it possible to adjust the scrolling bar so to show the whole content mantaining the original dimension of the window (i.e. not resizing it)?

Thanks a lot,

Marco

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marko001,

Using scrollbars on resizeable GUIs is fraught with difficulty. :(

If you want to get perfectly sized scrollbars on a non-resizable GUI, then just use the GUIScrollBars_Ex UDF you can find under Scrollbars in my sig. These scrollbars will also work with a resizeable GUI, but in my experience you will have to increase the scrollable area slightly (about 30 pixels in each axis) to get all the area to show - and once you resize the GUI, all bets are off! :D

Give it a try and see how you get on. If you have trouble integrating the UDF with your script, just come back as ask again. :graduated:

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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To be honest once I posted the msg got your UDF and tried it.

It works absolutely as I expected.

Since I perfectly know the HORIZ max range I can use an exact value.

For the VERT one i "try to guess" since maximum lines (I will create "x" lines in the GUI) is around 100. So i'll try values.

Anyway I realized that using that UDF slows a lot the process of loading and dramaticaly lowers performance. Is it possible or maybe I have other problems?

mainwindow for me is called this way:

$mainwindow = GUICreate(_ReturnRandomString(Random(7, 12)), 1000, 500, 192, 10,BitOR($WS_MINIMIZEBOX, $WS_CAPTION, $WS_POPUP, $WS_SYSMENU, $WS_SIZEBOX))

before using your UDF i called it

$mainwindow = GUICreate(_ReturnRandomString(Random(7, 12)), 608, 690, 284, 160,$DS_MODALFRAME)

what's better? (and does it influence process loading speed?)

Marco

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marko001,

If you use the other UDF in the package - _GUIScrollBars_Size - you can amend the scrollbars as the size of the scrollable area changes. :(

using that UDF slows a lot the process of loading and dramaticaly lowers performance

I does not do that for me or anyone else I know who uses the UDF - so I am tempted to think you have another problem. Perhaps if you posted your script we could take a look and see. :graduated:

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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