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jcpetu

WM_NOTIFY question

10 posts in this topic

Hello forum, I´m trying to trap messages from diferent controls to add functionality.

I managed to get messages from buttons but I´m confused respect how to trap other controls.

Here is the code in case anyone could help me.

Thanks in advance.

#include 

#include 

#include 

#include 

#include 

#include 



Opt("GUIOnEventMode", 1)



Global $Form1, $Label1, $Input1, $Label2, $Input2, $Label3, $Input3, $Edit1, $Button1, $Button2, $Checkbox1, $Radio1

Global $Gui = GUICreate("Basic GUI", 615, 362, 192, 124)

GUISetOnEvent($GUI_EVENT_CLOSE, "Salir")



$Label1 = GUICtrlCreateLabel("Label1", 24, 48, 36, 17)

$Input1 = GUICtrlCreateInput("Input1", 80, 48, 161, 21)

$Label2 = GUICtrlCreateLabel("Label2", 24, 96, 36, 17)

$Input2 = GUICtrlCreateInput("Input2", 80, 88, 161, 21)

$Label3 = GUICtrlCreateLabel("Label3", 24, 136, 36, 17)

$Input3 = GUICtrlCreateInput("Input3", 80, 128, 161, 21)

$Edit1 = GUICtrlCreateEdit("", 304, 48, 265, 113)

GUICtrlSetData(-1, "Edit1")

$Button1 = GUICtrlCreateButton("Button1", 32, 184, 121, 33)

$Button2 = GUICtrlCreateButton("Button2", 192, 184, 121, 41)

$Checkbox1 = GUICtrlCreateCheckbox("Checkbox1", 352, 184, 97, 25)

$Radio1 = GUICtrlCreateRadio("Radio1", 488, 184, 73, 33)

GUISetState(@SW_SHOW)



GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")



While Sleep(100)



WEnd



Func Salir()

GUIDelete()

Exit

EndFunc ;==>Salir





Func WM_NOTIFY($hWnd, $iMsg, $wParam, $lParam)

#forceref $hWnd, $iMsg, $wParam

Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR, $tInfo

$tNMHDR = DllStructCreate($tagNMHDR, $lParam)

$hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))

$iIDFrom = DllStructGetData($tNMHDR, "IDFrom")

$iCode = DllStructGetData($tNMHDR, "Code")

Local Const $BCN_HOTITEMCHANGE = -1249

Local $tNMBHOTITEM = DllStructCreate("hwnd hWndFrom;int IDFrom;int Code;dword dwFlags", $lParam)

Local $nNotifyCode = DllStructGetData($tNMBHOTITEM, "Code"), _

$nID = DllStructGetData($tNMBHOTITEM, "IDFrom"), _

$hCtrl = DllStructGetData($tNMBHOTITEM, "hWndFrom"), _

$dwFlags = DllStructGetData($tNMBHOTITEM, "dwFlags"), _

$sText = ""



Switch $nNotifyCode

Case $BCN_HOTITEMCHANGE ; message sent by a button

Switch $nID

Case $Button1

ConsoleWrite("Message from button 1" & _GUICtrlButton_GetText($hCtrl) & @CRLF)



Case $Button2

ConsoleWrite("Message from button 1" & _GUICtrlButton_GetText($hCtrl) & @CRLF)

EndSwitch

EndSwitch

Return $GUI_RUNDEFMSG

EndFunc ;==>WM_NOTIFY

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#2 ·  Posted (edited)

In a file-help function _GUICtrlButton_Create not tried?

In the help file did not try to function _GUICtrlButton_Create?

http://azjio.narod2.ru/autoit3_docs/userfunctions/WM_NOTIFY.htm

Edited by AZJIO

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Hello AZJIO, yes I create my code from the example you mentioned, and I can trab button messages. But I want to trap messages for all other controls.

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For Hovering Events check GUIGetCursorInfo

Example

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


Global $Form1, $Label1, $Input1, $Label2, $Input2, $Label3, $Input3, $Edit1, $Button1, $Button2, $Checkbox1, $Radio1
Global $Gui = GUICreate("Basic GUI", 615, 362, 192, 124)
GUISetOnEvent($GUI_EVENT_CLOSE, "Salir")
Opt("GUIOnEventMode", 1)

;The return of any native control is the ControlID
;That is if $Label1 is X then $Label2 is X+1

$Label1 = GUICtrlCreateLabel("Label1", 24, 48, 36, 17)
$Label2 = GUICtrlCreateLabel("Label2", 24, 96, 36, 17)
$Label3 = GUICtrlCreateLabel("Label3", 24, 136, 36, 17)

$Input1 = GUICtrlCreateInput("Input1", 80, 48, 161, 21)
$Input2 = GUICtrlCreateInput("Input2", 80, 88, 161, 21)
$Input3 = GUICtrlCreateInput("Input3", 80, 128, 161, 21)

$Edit1 = GUICtrlCreateEdit("", 304, 48, 265, 113)
GUICtrlSetData(-1, "Edit1")

$Button1 = GUICtrlCreateButton("Button1", 32, 184, 121, 33)
$Button2 = GUICtrlCreateButton("Button2", 192, 184, 121, 41)
$Checkbox1 = GUICtrlCreateCheckbox("Checkbox1", 352, 184, 97, 25)
$Radio1 = GUICtrlCreateRadio("Radio1", 488, 184, 73, 33)
GUISetState(@SW_SHOW)

Local $prev_Ctl_hovered
While 1
$nMsg = GUIGetCursorInfo()
If @error Then ContinueLoop

If $nMsg[4] <> $prev_Ctl_hovered Then
Switch $nMsg[4]
Case $Label1 To $Label3
ConsoleWrite("Hovering on Label" & $nMsg[4] - $Label1 + 1 & @CRLF)

Case $Input1 To $Input3
ConsoleWrite("Hovering on Label" & $nMsg[4] - $Input1 + 1 & @CRLF)

Case $Edit1
ConsoleWrite("Hovering on Edit1" & @CRLF)

Case $Button1, $Button2
ConsoleWrite("Hovering on Button" & $nMsg[4] - $Button1 + 1 & @CRLF)

Case $Checkbox1
ConsoleWrite("Hovering on Checkbox" & @CRLF)

Case $Radio1
ConsoleWrite("Hovering on Radio" & @CRLF)

EndSwitch
$prev_Ctl_hovered = $nMsg[4]
EndIf

WEnd

Func Salir()
GUIDelete()
Exit
EndFunc   ;==>Salir
For Checking clicked messages see GUICtrlSetOnEvent (orelse GUIGetMsg when not using Opt("GUIOnEventMode", 1))

Regards :)


My code:

PredictText: Predict Text of an Edit Control Like Scite. Remote Gmail: Execute your Scripts through Gmail. StringRegExp:Share and learn RegExp.

Run As System: A command line wrapper around PSEXEC.exe to execute your apps scripts as System (LSA). Database: An easier approach for _SQ_LITE beginners.

MathsEx: A UDF for Fractions and LCM, GCF/HCF. FloatingText: An UDF for make your text floating. Clipboard Extendor: A clipboard monitoring tool. 

Custom ScrollBar: Scroll Bar made with GDI+, user can use bitmaps instead. RestrictEdit_SRE: Restrict text in an Edit Control through a Regular Expression.

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Hi PhoenixXL, I just want to avoid checking into the While loop, thats the reason to trap the windows message which I think is much efficient.

I know I have to trap the control ID who sent the message, I also tried with the following but I didn´t get to find the correct code so far.

#include <ButtonConstants.au3>
#include <EditConstants.au3>
#include <GuiButton.au3>
#include <GUIConstantsEx.au3>
#include <StaticConstants.au3>
#include <WindowsConstants.au3>
Opt("GUIOnEventMode", 1)
Global $Label1, $Input1, $Label2, $Input2, $Label3, $Input3, $Edit1, $Button1, $Button2, $Checkbox1, $Radio1
Global $Gui = GUICreate("", 615, 362, 192, 124)
GUISetOnEvent($GUI_EVENT_CLOSE, "Close")
$Label1 = GUICtrlCreateLabel("Label1", 24, 48, 36, 17)
$Input1 = GUICtrlCreateInput("Input1", 80, 48, 161, 21)
$Label2 = GUICtrlCreateLabel("Label2", 24, 96, 36, 17)
$Input2 = GUICtrlCreateInput("Input2", 80, 88, 161, 21)
$Label3 = GUICtrlCreateLabel("Label3", 24, 136, 36, 17)
$Input3 = GUICtrlCreateInput("Input3", 80, 128, 161, 21)
$Edit1 = GUICtrlCreateEdit("", 304, 48, 265, 113)
GUICtrlSetData(-1, "Edit1")
$Button1 = GUICtrlCreateButton("Button1", 32, 184, 121, 33)
$Button2 = GUICtrlCreateButton("Button2", 192, 184, 121, 41)
$Checkbox1 = GUICtrlCreateCheckbox("Checkbox1", 352, 184, 97, 25)
$Radio1 = GUICtrlCreateRadio("Radio1", 488, 184, 73, 33)
GUISetState(@SW_SHOW)

GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")
While Sleep(100)
WEnd
Func Close()
GUIDelete()
Exit
EndFunc   ;==>Close

Func WM_NOTIFY($hWnd, $iMsg, $wParam, $ilParam) ;Notify func
Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR
Local $NTF = GUICtrlGetHandle($Label1)
$tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
$hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
$iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
$iCode = DllStructGetData($tNMHDR, "Code")
If $iCode = -12 Or $iCode = -17 Then Return False
Switch $iCode
  Case $NTF
   ConsoleWrite("$NTFYLabel1" & @CRLF)
EndSwitch
Return $GUI_RUNDEFMSG
EndFunc   ;==>WM_NOTIFY

Thanks for the example and regards.

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#7 ·  Posted (edited)

With WM_NOTIFY your code will simply increase. Check this I don't think its inefficient in any way with comparison.

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


Global $Form1, $Label1, $Input1, $Label2, $Input2, $Label3, $Input3, $Edit1, $Button1, $Button2, $Checkbox1, $Radio1
Global $Gui = GUICreate("Basic GUI", 615, 362, 192, 124)
GUISetOnEvent($GUI_EVENT_CLOSE, "Salir")
Opt("GUIOnEventMode", 1)

;The return of any native control is the ControlID
;That is if $Label1 is X then $Label2 is X+1

$Label1 = GUICtrlCreateLabel("Label1", 24, 48, 36, 17)
$Label2 = GUICtrlCreateLabel("Label2", 24, 96, 36, 17)
$Label3 = GUICtrlCreateLabel("Label3", 24, 136, 36, 17)

$Input1 = GUICtrlCreateInput("Input1", 80, 48, 161, 21)
$Input2 = GUICtrlCreateInput("Input2", 80, 88, 161, 21)
$Input3 = GUICtrlCreateInput("Input3", 80, 128, 161, 21)

$Edit1 = GUICtrlCreateEdit("", 304, 48, 265, 113)
GUICtrlSetData(-1, "Edit1")

$Button1 = GUICtrlCreateButton("Button1", 32, 184, 121, 33)
$Button2 = GUICtrlCreateButton("Button2", 192, 184, 121, 41)
$Checkbox1 = GUICtrlCreateCheckbox("Checkbox1", 352, 184, 97, 25)
$Radio1 = GUICtrlCreateRadio("Radio1", 488, 184, 73, 33)

For $i = $Label1 To $Radio1
GUICtrlSetOnEvent($i, "Clicked_Item") ;Register Click Event
Next
AdlibRegister("Hovered_Item", 10)

GUISetState(@SW_SHOW)

While Sleep(10)

WEnd

Func Salir()
GUIDelete()
Exit
EndFunc ;==>Salir

Func Clicked_Item()
$iControlID = @GUI_CtrlId
ConsoleWrite(GUICtrlRead($iControlID, 1) & " Clicked" & @CRLF)
EndFunc

Func Hovered_Item()
Static $prev_Ctl = 0
$aMsg = GUIGetCursorInfo()
If @error Or $aMsg[4] = 0 Or $aMsg[4] = $prev_Ctl Then Return

ConsoleWrite(GUICtrlRead($aMsg[4], 1) & " Hovered" & @CRLF)
$prev_Ctl = $aMsg[4]
EndFunc
Thumbs up if helped

Regards :)

Edited by PhoenixXL

My code:

PredictText: Predict Text of an Edit Control Like Scite. Remote Gmail: Execute your Scripts through Gmail. StringRegExp:Share and learn RegExp.

Run As System: A command line wrapper around PSEXEC.exe to execute your apps scripts as System (LSA). Database: An easier approach for _SQ_LITE beginners.

MathsEx: A UDF for Fractions and LCM, GCF/HCF. FloatingText: An UDF for make your text floating. Clipboard Extendor: A clipboard monitoring tool. 

Custom ScrollBar: Scroll Bar made with GDI+, user can use bitmaps instead. RestrictEdit_SRE: Restrict text in an Edit Control through a Regular Expression.

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I just want to avoid checking into the While loop, thats the reason to trap the windows message which I think is much efficient

It is most definitely not. The AutoIt authors have gone to a lot of trouble to give you 2 easy-to-use modes (MessageLoop & OnEvent) to trap the messages for native-created controls. Anything you code will be very much less efficient as it will use an AutoIt-coded handler to do what is being done for you internally in C++ code. ;)

UDF-created controls need message handlers because they are not dealt with internally by AutoIt - which is why I would always recommend using them only if you find that you need their increased functionality and as a result the necessary extra coding is worth the effort. :)

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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Just an FYI, I dpon't think WM_NOTIFY is the message you would need to look for with buttons and labels anyways, you're probably wanting to look for WM_COMMAND messages.


If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
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Thanks to all for the answers. Autoit is a wonderfull language and I truly apreciate the effort the authors have done.

All the answers you gave me got the point but I am curious and want to understand.

one thing I learned, there are many ways to do the same. THANKS A LOT and regrads.

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