Button enabled only when a ListViewItem is selected

[TheDcoder]

Hello, Please look at this GUI:

#include-once

; -- Created with ISN Form Studio 2 for ISN AutoIt Studio -- ;
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#Include <GuiButton.au3>
#include <GuiListView.au3>

Global $test = GUICreate("test",283,120,-1,-1,-1,-1)
GUISetBkColor(0xFFFFFF,$test)
$hListMyList = GUICtrlCreatelistview("My List",7,4,269,65,-1,512)
$hButtonAlwaysEnabled = GUICtrlCreateButton("Always Enabled",20,80,100,30,-1,-1)
$hButtonEnabled = GUICtrlCreateButton("Enabled",160,80,100,30,-1,-1)
$hListViewItemMyItem = GUICtrlCreateListViewItem("My List Item", $hListMyList)
GUISetState()

While True
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        
    EndSwitch
WEnd

I want $hButtonEnabled disabled when a ListViewItem is not selected. I tried inserting a custom function in the while loop but it didn't work that well (button was flickering & high memory usage)

I think its not possible to do in AutoIt AutoIt is awsome!

If you know to do such thing, please post it here , TD

P.S Will be greatly appreciated cause its impossible for me to do

Edited April 15, 2015 by TheDcoder

[TheDcoder]

Hello again, I found out the solution myself I suck!!!, This solution adds flicker effect to your buttons (Only visible when your mouse is above your button)

Add the following to your script:

AdlibRegister("ButtonCheck") ; Use this to check ListView

Func ButtonCheck()
    If GUICtrlRead($hListMyList) = 0 Then
        GUICtrlSetState($hYourButton, 128) ; 128 = $GUI_DISABLE
                ; Any extra buttons to check here
    Else
        GUICtrlSetState($hYourButton, 64) ; 64 = $GUI_ENABLE
                ; Any extra buttons to check here
    EndIf
EndFunc

This is the working version of my script:

#include-once

AdlibRegister("ButtonCheck")

; -- Created with ISN Form Studio 2 for ISN AutoIt Studio -- ;
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#Include <GuiButton.au3>
#include <GuiListView.au3>

Global $test = GUICreate("test",283,120,-1,-1,-1,-1)
GUISetBkColor(0xFFFFFF,$test)
$hListMyList = GUICtrlCreatelistview("My List",7,4,269,65,-1,512)
$hButtonAlwaysEnabled = GUICtrlCreateButton("Always Enabled",20,80,100,30,-1,-1)
$hButtonEnabled = GUICtrlCreateButton("Enabled",160,80,100,30,-1,-1)
$hListViewItemMyItem = GUICtrlCreateListViewItem("My List Item", $hListMyList)
GUISetState()

While True
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        
    EndSwitch
WEnd

Func ButtonCheck()
    If GUICtrlRead($hListMyList) = 0 Then
        GUICtrlSetState($hButtonEnabled, 128) ; 128 = $GUI_DISABLE
    Else
        GUICtrlSetState($hButtonEnabled, 64) ; 64 = $GUI_ENABLE
    EndIf
EndFunc

May it help you, TD

Edited April 15, 2015 by TheDcoder

[MuffettsMan]

you might want to consider WM_NOTIFY (i'm using it to detect listview clicks then call a function accordingly..

or in this example when i click on a listview it updates input boxes on different tabs but enabling or disabling a button would be the same logic

expandcollapse popup

; Handle WM_NOTIFY messages
; used to get listview clicks on the fly
Func WM_NOTIFY($hWnd, $iMsg, $iwParam, $ilParam)
    #forceref $hWnd, $iMsg, $iwParam
    Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR, $hWndListView, $tInfo, $sClickType
    $hListView = $GUI_BackupQueueListView
    $hWndListView = $hListView
    If Not IsHWnd($hListView) Then $hWndListView = GUICtrlGetHandle($hListView)

    $tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
    $hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
    $iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
    $iCode = DllStructGetData($tNMHDR, "Code")
    Switch $hWndFrom
        Case $hWndListView
            Switch $iCode
                Case $NM_CLICK ; Sent by a list-view control when the user clicks an item with the left mouse button
                    $sClickType = "Left Click"
                Case $NM_DBLCLK ; Sent by a list-view control when the user double-clicks an item with the left mouse button
                    $sClickType = "Left Double-Click"
                Case $NM_RCLICK ; Sent by a list-view control when the user clicks an item with the right mouse button
                    $sClickType = "Right Click"
                Case $NM_RDBLCLK ; Sent by a list-view control when the user double-clicks an item with the right mouse button
                    $sClickType = "Right Double-Click"
                Case Else ; We aren't interested in other messages
                    Return $GUI_RUNDEFMSG
            EndSwitch
            $tInfo = DllStructCreate($tagNMITEMACTIVATE, $ilParam)
            ConsoleWriteGUI("WM_NOTIFY: " & $sClickType & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
                    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
                    "-->Code:" & @TAB & $iCode & @LF & _
                    "-->Index:" & @TAB & DllStructGetData($tInfo, "Index") & @LF & _
                    "-->SubItem:" & @TAB & DllStructGetData($tInfo, "SubItem") & @LF)

            ; Get ListView item by index.... [1] ID... [2] File Name... [3] Path...
            Global $selectedItem = _GUICtrlListView_GetItemTextArray($GUI_BackupQueueListView, DllStructGetData($tInfo, "Index"))

            GUICtrlSetData($GUI_Action_SourceInput, $selectedItem[1] & " - " & $selectedItem[2])
            GUICtrlSetData($GUI_Schedule_SourceInput, $selectedItem[1] & " - " & $selectedItem[2])


    EndSwitch
    Return $GUI_RUNDEFMSG
 EndFunc   ;==>WM_NOTIFY

[TheDcoder]

@MuffetsMan I don't understand your function, maybe a crappy documentation will help, TD

[kylomas]

TheDcoder,

The state of the button is both Enabled and Shown so guictrlgetstate returns $GUI_ENABLE (64) + $GUI_SHOW (16).  Same principle applies to disabled.  You only want to change the state of the button when you have to or it will flicker.

See below...

#include-once

; -- Created with ISN Form Studio 2 for ISN AutoIt Studio -- ;
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <GuiButton.au3>
#include <GuiListView.au3>

Global $test = GUICreate("test", 283, 120, -1, -1, -1, -1)
GUISetBkColor(0xFFFFFF, $test)
$hListMyList = GUICtrlCreateListView("My List", 7, 4, 269, 65, -1, 512)
$hButtonAlwaysEnabled = GUICtrlCreateButton("Always Enabled", 20, 80, 100, 30, -1, -1)
$hButtonEnabled = GUICtrlCreateButton("Enabled", 160, 80, 100, 30, -1, -1)
$hListViewItemMyItem = GUICtrlCreateListViewItem("My List Item", $hListMyList)
GUISetState()

While True
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit

    EndSwitch

    If GUICtrlRead($hListMyList) = 0 And GUICtrlGetState($hButtonEnabled) = 80 Then GUICtrlSetState($hButtonEnabled, 128)
    If GUICtrlRead($hListMyList) <> 0 And GUICtrlGetState($hButtonEnabled) = 144 Then GUICtrlSetState($hButtonEnabled, 64)

WEnd

kylomas

Edited April 16, 2015 by kylomas

[TheDcoder]

@kylomas You saved my GUI, Thanks

Solution:

I enhanced kylomas's code and made this function:

Func ListCheck()
    Switch GUICtrlRead($hListYourList) ; Your List
        Case 0
            Switch GUICtrlGetState($hYourButton) ; Your button to check
                Case 80
                    GUICtrlSetState($hButtonEnabled, 128)
                                        ; Add any buttons here if you have multiple buttons

                Case Else
                Return

            EndSwitch

        Case Else
            Switch GUICtrlGetState($hYourButton) ; Your button to check
                Case 144
                    GUICtrlSetState($hYourButton, 64)
                                        ; Add any buttons here if you have multiple buttons

                Case Else
                    Return

            EndSwitch

    EndSwitch
EndFunc

Use the above function in your GUI's while loop

May it help you, TD

Edited April 19, 2015 by TheDcoder