Sign in to follow this  
Followers 0
spudw2k

Help with utilizing control notification messages

3 posts in this topic

I'm struggling to find any examples for this.  I am looking to utilize control notification messages as defined in their respective constants include. 

For example: in the TreeViewConstants.au3 include I see notifications for selection chang(e/ing), expand(ed/ing), etc.

I was thinking it would tie into the usage of WM_NOTIFY, but I don't know I would populate the dllstruct for $tagNMTREEVIEW.  I am also assuming that "Action" would be the portion of the struct where I would identify the notification message?  Can anyone shed some light on this for me?

 

Share this post


Link to post
Share on other sites



Share this post


Link to post
Share on other sites

I don't know what I was doing wrong before, but I was able to piece together some working code from examples. 

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <StructureConstants.au3>
#include <GuiTreeView.au3>
#include <TreeViewConstants.au3>
GUICreate('treeview',200,400)
$TreeView1=GUICtrlCreateTreeView(0,0,200,400)
$item1=GUICtrlCreateTreeViewItem("Root Item 1",$TreeView1)
$item2=GUICtrlCreateTreeViewItem("Root Item 2",$TreeView1)
for $i=1 to 10
    GUICtrlCreateTreeViewItem("Child Item "&$i,$item1 )
    GUICtrlCreateTreeViewItem("Child Item "&$i,$item2 )
Next
GUISetState()
GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")

While 1
    $msg = GUIGetMsg()
    Switch $msg
        Case  $GUI_EVENT_CLOSE
            Exit
    EndSwitch
WEnd

Func WM_NOTIFY($hWnd, $Msg, $wParam, $lParam)
    Local $tNMHDR, $IdFrom, $iCode
    $tNMHDR = DllStructCreate($tagNMHDR, $lParam)
    $IdFrom = DllStructGetData($tNMHDR, "IdFrom")
    $iCode = DllStructGetData($tNMHDR, "Code")
    Switch $IdFrom
        Case $TreeView1
            Switch $iCode
                Case $TVN_SELCHANGEDW
                    Local $tInfo = DllStructCreate($tagTVITEMEX , $lParam)
                    Local $iState = DllStructGetData($tInfo, "State")
                            $idx = _GUICtrlTreeView_GetSelection($TreeView1)
                            $sTree = _GUICtrlTreeView_GetTree($TreeView1, $idx)
       If $sTree Then ConsoleWrite($sTree & @CRLF)
                    Return 0
        EndSwitch
    EndSwitch
    Return $GUI_RUNDEFMSG
EndFunc

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0