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bourny

GUIListViewEX detect column resize

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Hi,

 

I am using @Melba23 GuiListViewEx for my gui.    I am having difficulty when resizing the column it causes the list view to look broken up until I refresh it.  This will be down to the way I have coded the program however, I would like to put a quick work around in to detect when someone is resizing a column and force the refresh.   Problem is I cannot detect the column being resized.

I have tried using an example of the below code i found on the forum to see if I can detect the list view expansion which I can.  I then tried to add some code to the GuiListViewEx to see if the same would work but did not.   First code snippet below is a part I found on the  forum.  The second code snippet is from the GuiListViewEX I tried to add.

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

; The 0-based column to be disabled
Global $iFix_Col, $hHeader

_Main()

Func _Main()
    Local Const $hGUI = GUICreate("ListView Fix Column Width", 400, 300)

    Local Const $hListView = GUICtrlCreateListView("Column 0|Column 1|Column 2|Column 3", 2, 2, 394, 268)
    $hHeader = _GUICtrlHeader_Create($hGUI)
    GUISetState(@SW_SHOWNORMAL)

    ; Prevent resizing of column 1
    $iFix_Col = 1

    GUIRegisterMsg($WM_NOTIFY, "_WM_NOTIFY")

    ; Loop until user exits
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE
EndFunc   ;==>_Main

Func _WM_NOTIFY($hWnd, $iMsg, $wParam, $lParam)
    #forceref $hWnd, $iMsg, $wParam
    ; Get details of message
    Local Const $tNMHEADER = DllStructCreate($tagNMHEADER, $lParam)
    Local $tNMHDR = DllStructCreate($tagNMHDR, $lParam)
    Local $hWndFrom = DllStructGetData($tNMHDR, "hWndFrom")
    Local Const $iCode2 = DllStructGetData($tNMHEADER, "Code")
    Switch $hWndFrom
        Case $hHeader
            Switch $iCode2
                Case $WM_SETCURSOR
                    Return True
            EndSwitch
    EndSwitch
    Switch $iCode2
        Case $HDN_BEGINTRACKW
            ; Now get column being resized
            Local $iCol = DllStructGetData($tNMHEADER, "Item")
            ;If $iCol = $iFix_Col Then
                ; Prevent resizing
             ;   Return True
            ;Else
                consolewrite("Detected Resize" & @lf)
                ; Allow resizing
                Return False
            ;EndIf
    EndSwitch
EndFunc   ;==>_WM_NOTIFY

 

Here is Melba23`s function extract code which I unsuccessfully spliced the above detection for $HDN_BeginTrackw.  I also tried changing it to $LVN_BeginTrackw (Guess) which also failed to detect the resize.  Clearly I dont understand the DllStructGetData enough to splice this or add code to enable the drag detection.  I also looked on Dr Google for some idea of what libraries are available but what I found I dont fully understand enough to add the correct code.

; #FUNCTION# =========================================================================================================
; Name...........: _GUIListViewEx_WM_NOTIFY_Handler
; Description ...: Windows message handler for WM_NOTIFY
; Syntax.........: _GUIListViewEx_WM_NOTIFY_Handler()
; Requirement(s).: v3.3 +
; Return values .: None
; Author ........: Melba23
; Modified ......:
; Remarks .......: If a WM_NOTIFY handler already registered, then call this function from within that handler
; Example........: Yes
;=====================================================================================================================
Func _GUIListViewEx_WM_NOTIFY_Handler($hWnd, $iMsg, $wParam, $lParam)

    #forceref $hWnd, $iMsg, $wParam

    ; Struct = $tagNMHDR and "int Item;int SubItem" from $tagNMLISTVIEW
    Local $tStruct = DllStructCreate("hwnd;uint_ptr;int_ptr;int;int", $lParam)
    If @error Then Return

    ; Check if enabled ListView or header
    For $iLV_Index = 1 To $aGLVEx_Data[0][0]
        If $aGLVEx_Data[$iLV_Index][0] = DllStructGetData($tStruct, 1) Then
            ExitLoop
        EndIf
    Next
    If $iLV_Index > $aGLVEx_Data[0][0] Then Return ; Not enabled

    Local $iCode = BitAND(DllStructGetData($tStruct, 3), 0xFFFFFFFF)




    ;-------------Added by Bourny 
        Local Const $tNMHEADER = DllStructCreate($tagNMHEADER, $lParam)
        Local $tNMHDR = DllStructCreate($tagNMHDR, $lParam)
        Local $hWndFrom = DllStructGetData($tNMHDR, "hWndFrom")
        Local Const $iCode2 = DllStructGetData($tNMHEADER, "Code")
        ;Switch $hWndFrom
           ; Case $hHeader
            ;    Switch $iCode2
             ;       Case $WM_SETCURSOR
              ;          Return True
               ; EndSwitch
        ;EndSwitch
        Switch $iCode2
            Case $HDN_BEGINTRACKW
                ; Now get column being resized
                Local $iCol = DllStructGetData($tNMHEADER, "Item")
                ;If $iCol = $iFix_Col Then
                    ; Prevent resizing
                 ;   Return True
                ;Else
                    consolewrite("Detected Resize" & @lf)
                    ; Allow resizing
                    Return False
                ;EndIf
        EndSwitch
    ;-------------Added by Bourny 



    Switch $iCode


       Case $NM_RCLICK

         $iIndex = _GUICtrlListView_GetSelectedIndices($hListView_Right)

any help appreciated.   

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bourny,

If I resize ListView columns when using my UDF I do not see any sort of "broken" display as you mention. Do you get this effect when resizing columns in Example 6 of the UDF download?

M23


Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind

Open spoiler to see 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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Hi Melba23,

 

It looks fine when I resize on example 6.  I am absolutely sure this is something to do with the way I am rendering my Gui or the graphic attached to it.  I am looking to create a simplified version of my core Gui to troubleshoot where its going wrong.    For now I can cope with it until I get a chance to troubleshoot however I was hoping to put a quick fix in place for now which is to simply refresh the Gui if I detect someone has resized a column.

 

Your list view is perfect for my needs and it will be my poor implementation that is causing this issue.   Do you think there is a way to detect this extending of the column in your Mod.  I am already making good use of your left click and right click detection to do things which is working well.

bourny.

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bourny,

Looking into it.

M23


Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind

Open spoiler to see 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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Posted (edited)

bourny,

Try this version - I have modified Example_6 to show how it works through _GUIListViewEx_EventMonitor:

 

 

M23

Edited by Melba23
Beta code removed

Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind

Open spoiler to see 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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Melba23,

 

That worked on your code.    I can now detect the column resize in example6.   I am running an older version of your Mod (3.3 +) which looks like the Mod has been overhauled and a lot of functions have been deprecated.   I will need to try and migrate my program to your new Mod to take advantage of the new feature.

Thanks for the time working on this.  

bourny

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bourny,

I have plenty of spare time at the moment - even my wife cannot think of enough jobs to fill ALL my day! So if you need help in getting your code to work with the UDF do not hesitate to ask.

M23


Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind

Open spoiler to see 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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