ListView, drag&drop and on event

[stoyan 1]

Hello, all!

I've got a list view control. It has to accepts a drag/dropped files from the Explorer. Then I have to filter them out and populate the list view. The problem is that list view does not file any event in on event mode. At least on my side. The closest thing I found on the forums is this answer. A slightly modified (on message) version is working ok, at least events are being fired. Here is the working (edited from the post above) script:

#include <GUIConstants.au3>
#include <WindowsConstants.au3>

$parent = GUICreate("test",200,200,-1,-1,-1,$WS_EX_ACCEPTFILES)

GUICtrlCreateListView("Test",10,10,75,75)
GuiCtrlSetState(-1, $GUI_DROPACCEPTED)

GUISetState()
Do
$msg = GUIGetMsg()

if $msg = $GUI_EVENT_DROPPED then
MsgBox(0,"Test",@GUI_DROPID & " " & @GUI_DRAGFILE)
endif

Until $msg = $GUI_EVENT_CLOSE
GuiDelete($parent)

Here is the nonworking mine script:

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <ListViewConstants.au3>
#include <WindowsConstants.au3>
#include <Array.au3>

Opt('GUIOnEventMode', 1)

Global Const $title = 'Some descriptive title'
Global $treff

main()

while 1
    sleep(5000)
wend

func main()

    $treff = GUICreate($title, 500, 385, -1, -1, -1, $WS_EX_ACCEPTFILES)
    GUISetOnEvent($GUI_EVENT_CLOSE, 'handle_close')


    GUICtrlCreateListView('Column one|Column two', 10, 10, 480, 190, $LVS_NOSORTHEADER)
    GuiCtrlSetState(-1, $GUI_DROPACCEPTED)
    GuiCtrlSetOnEvent(-1, 'file_list_event_handler')

    GUISetState()

EndFunc


Func handle_close()
    Switch @GUI_WINHANDLE
        Case $treff
            Exit
    EndSwitch
EndFunc


Func file_list_event_handler()
    MsgBox(48, 'Event status', 'The event has fired!')
EndFunc

I'll need your support.

Edit: fixed the link to the other post

Edited September 29, 2010 by stoyan

[kaotkbliss 146]

I had the same problem with listview drag/drop and Opt('GUIOnEventMode')

I think it simply does not work with that combination.

Your best bet is to use GuiGetMsg and find a way to trigger the functions you need that way.

I know

While 1
        Sleep(10)
        Switch GUIGetMsg()
            Case $GUI_EVENT_DROPPED
                ListView_Add()
            Case $GUI_EVENT_SECONDARYDOWN
                $extrax = 2
                $extray = 2
                $wpos = WinGetPos($ver)
                $mpos = MouseGetPos()
                $ipos = ControlGetPos($ver, "", $ListView)
                If $mpos[0] > $wpos[0] + $ipos[0] + $extrax And $mpos[1] > $wpos[1] + $ipos[1] + $extray And $mpos[0] < $wpos[0] + $ipos[0] + $extrax + $ipos[2] And $mpos[1] < $wpos[1] + $ipos[1] + $extray + $ipos[3] Then
                    ListView_RightClick()
                EndIf
            Case $GUI_EVENT_PRIMARYDOWN
                $extrax = 2
                $extray = 2
                $wpos = WinGetPos($ver)
                $mpos = MouseGetPos()
                $ipos = ControlGetPos($ver, "", $ListView)
                If $mpos[0] > $wpos[0] + $ipos[0] + $extrax And $mpos[1] > $wpos[1] + $ipos[1] + $extray And $mpos[0] < $wpos[0] + $ipos[0] + $extrax + $ipos[2] And $mpos[1] < $wpos[1] + $ipos[1] + $extray + $ipos[3] Then
                    If TimerDiff($t) <= 500 And $q = 1 Then
                        ListView_DblClick()
                    Else
                        $t = TimerInit()
                        $q = 1
                    EndIf
                ElseIf $mpos[0] > $wpos[0] + $extrax And $mpos[1] > $wpos[1] + $extray And $mpos[0] < $wpos[0] + $ipos[0] + $extrax + $ipos[2] And $mpos[1] < $wpos[1] + $ipos[1] + $extray + $ipos[3] Then
                    While _IsPressed(01)
                        _SendMessage($hGUI, $WM_SYSCOMMAND, $SC_DRAGMOVE, 0)
                    WEnd
                EndIf
        EndSwitch
    WEnd

Worked in my script

*edit*

This snippit uses drag/drop, right click and double click.

Edited September 29, 2010 by kaotkbliss

[taietel 34]

 stoyan, I've modified a little your script, to handle the drop event:

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <ListViewConstants.au3>
#include <WindowsConstants.au3>
#include <Array.au3>

Opt('GUIOnEventMode', 1)

Global Const $title = 'Some descriptive title'
Global $treff, $hLv,$iLV=0

main()

while 1
    sleep(5000)
wend

func main()

    $treff = GUICreate($title, 500, 385, -1, -1, -1, $WS_EX_ACCEPTFILES)
    GUISetOnEvent($GUI_EVENT_CLOSE, 'handle_close')


    $hLv = GUICtrlCreateListView('Column one|Column two', 10, 10, 480, 190, $LVS_NOSORTHEADER)
    GuiCtrlSetState(-1, $GUI_DROPACCEPTED)
    GuiSetOnEvent($GUI_EVENT_DROPPED, 'file_list_event_handler')


    GUISetState()

EndFunc


Func handle_close()
    Switch @GUI_WINHANDLE
        Case $treff
            Exit
    EndSwitch
EndFunc


Func file_list_event_handler()
    Local $nbv = @GUI_DRAGFILE
    $iLV +=1
    GUICtrlCreateListViewItem($iLV&"|"&$nbv,$hLv)
    ;MsgBox(48, 'Event status', 'The event has fired!')
EndFunc

M.I.

Edited September 29, 2010 by taietel

[kaotkbliss 146]

Guess I was wrong

Maybe it was something else then that was blocking the drag/drop, but removing the "oneventmode" worked so I figured that was the problem.

[taietel 34]

kaotkbliss, I've also tried before, but failed. Now, after I saw these posts, I've solved also my problem! 

[stoyan 1]

Ahaa! Listen for the event on the window level. Thank you!

May be this bugreport has something in common. АlthoughI couldn't find the mentioned passage in the documentation.

[stoyan 1]

Nope, the bug report has nothing incommon with this case.

Thank you all for the help.