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Generating event for Edit Field

3 posts in this topic

Anyone know how to make an Edit control generate an event when "Return" is pressed??

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#2 ·  Posted (edited)

#include <GuiConstants.au3>

Global Const $WM_COMMAND = 0x0111
Global Const $EN_CHANGE = 0x300
Global Const $EN_SETFOCUS = 0x100
Global Const $EN_KILLFOCUS = 0x200
Global Const $DebugIt = 1
Global $changed = 0

GUICreate("My GUI Edit")  ; will create a dialog box that when displayed is centered

$edit = GUICtrlCreateEdit("This is a test, this is only a test", 80, 50, 270, 170) ; create first item
$btn = GUICtrlCreateButton("Ok", 40, 230, 60, 20)
GUISetState()
GUIRegisterMsg($WM_COMMAND, "MY_WM_COMMAND")

While 1
    $msg = GUIGetMsg()
    Select
        Case $msg = $GUI_EVENT_CLOSE
            ExitLoop
        Case $changed = 1
            ;----------------------------------------------------------------------------------------------
            If $DebugIt Then _DebugPrint("Edit Changed:" & GUICtrlRead($edit))
            If $DebugIt Then _DebugPrint(StringLen(GUICtrlRead($edit)))
            ;----------------------------------------------------------------------------------------------
            $changed = 0
    EndSelect
WEnd

Func _Edit_Changed()
    $changed = 1
    Local $s_temp = GUICtrlRead($edit)
    If StringMid($s_temp, StringLen($s_temp) - 1, 2) = @CRLF Then _DebugPrint("Edit Changed: Return Pressed")
EndFunc   ;==>_Edit_Changed

Func _Edit_GotFocus()
    ;----------------------------------------------------------------------------------------------
    If $DebugIt Then _DebugPrint("Edit Got Focus")
    ;----------------------------------------------------------------------------------------------
EndFunc   ;==>_Edit_GotFocus

Func _Edit_LostFocus()
    ;----------------------------------------------------------------------------------------------
    If $DebugIt Then _DebugPrint("Edit Lost Focus")
    ;----------------------------------------------------------------------------------------------
EndFunc   ;==>_Edit_LostFocus

Func MY_WM_COMMAND($hWnd, $msg, $wParam, $lParam)
    Local $nNotifyCode = BitShift($wParam, 16)
    Local $nID = BitAND($wParam, 0xFFFF)
    Local $hCtrl = $lParam
    
    Switch $nID
        Case $edit
            Switch $nNotifyCode
                Case $EN_CHANGE
                    _Edit_Changed()
                Case $EN_SETFOCUS
                    _Edit_GotFocus()
                Case $EN_KILLFOCUS
                    _Edit_LostFocus()
            EndSwitch
    EndSwitch
    ; Proceed the default Autoit3 internal message commands.
    ; You also can complete let the line out.
    ; !!! But only 'Return' (without any value) will not proceed
    ; the default Autoit3-message in the future !!!
    Return $GUI_RUNDEFMSG
EndFunc   ;==>MY_WM_COMMAND

Func _DebugPrint($s_text)
    $s_text = StringReplace($s_text, @LF, @LF & "-->")
    ConsoleWrite("!===========================================================" & @LF & _
            "+===========================================================" & @LF & _
            "-->" & $s_text & @LF & _
            "+===========================================================" & @LF)
EndFunc   ;==>_DebugPrint

Edited by gafrost

SciTE for AutoItDirections for Submitting Standard UDFs

 

Don't argue with an idiot; people watching may not be able to tell the difference.

 

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Ahhhh yes, good old $GUI_RegisterMsg....

Thanks! That's exactly what I was looking for.

#include <GuiConstants.au3>

Global Const $WM_COMMAND = 0x0111
Global Const $EN_CHANGE = 0x300
Global Const $EN_SETFOCUS = 0x100
Global Const $EN_KILLFOCUS = 0x200
Global Const $DebugIt = 1
Global $changed = 0

GUICreate("My GUI Edit")  ; will create a dialog box that when displayed is centered

$edit = GUICtrlCreateEdit("This is a test, this is only a test", 80, 50, 270, 170) ; create first item
$btn = GUICtrlCreateButton("Ok", 40, 230, 60, 20)
GUISetState()
GUIRegisterMsg($WM_COMMAND, "MY_WM_COMMAND")

While 1
    $msg = GUIGetMsg()
    Select
        Case $msg = $GUI_EVENT_CLOSE
            ExitLoop
        Case $changed = 1
            ;----------------------------------------------------------------------------------------------
            If $DebugIt Then _DebugPrint("Edit Changed:" & GUICtrlRead($edit))
            If $DebugIt Then _DebugPrint(StringLen(GUICtrlRead($edit)))
            ;----------------------------------------------------------------------------------------------
            $changed = 0
    EndSelect
WEnd

Func _Edit_Changed()
    $changed = 1
    Local $s_temp = GUICtrlRead($edit)
    If StringMid($s_temp, StringLen($s_temp) - 1, 2) = @CRLF Then _DebugPrint("Edit Changed: Return Pressed")
EndFunc   ;==>_Edit_Changed

Func _Edit_GotFocus()
    ;----------------------------------------------------------------------------------------------
    If $DebugIt Then _DebugPrint("Edit Got Focus")
    ;----------------------------------------------------------------------------------------------
EndFunc   ;==>_Edit_GotFocus

Func _Edit_LostFocus()
    ;----------------------------------------------------------------------------------------------
    If $DebugIt Then _DebugPrint("Edit Lost Focus")
    ;----------------------------------------------------------------------------------------------
EndFunc   ;==>_Edit_LostFocus

Func MY_WM_COMMAND($hWnd, $msg, $wParam, $lParam)
    Local $nNotifyCode = BitShift($wParam, 16)
    Local $nID = BitAND($wParam, 0xFFFF)
    Local $hCtrl = $lParam
    
    Switch $nID
        Case $edit
            Switch $nNotifyCode
                Case $EN_CHANGE
                    _Edit_Changed()
                Case $EN_SETFOCUS
                    _Edit_GotFocus()
                Case $EN_KILLFOCUS
                    _Edit_LostFocus()
            EndSwitch
    EndSwitch
    ; Proceed the default Autoit3 internal message commands.
    ; You also can complete let the line out.
    ; !!! But only 'Return' (without any value) will not proceed
    ; the default Autoit3-message in the future !!!
    Return $GUI_RUNDEFMSG
EndFunc   ;==>MY_WM_COMMAND

Func _DebugPrint($s_text)
    $s_text = StringReplace($s_text, @LF, @LF & "-->")
    ConsoleWrite("!===========================================================" & @LF & _
            "+===========================================================" & @LF & _
            "-->" & $s_text & @LF & _
            "+===========================================================" & @LF)
EndFunc   ;==>_DebugPrint

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