GUI Ordering

[Steve0]

I've posted on this before, and thought the problem was resolved, but it has reared its ugly head once again. I've a GUI with a number of images on it. These images are resized to double the size, then return back to normal size.

Upon resize, I have been unable to find a way to ensure the specific image is "on top" of all the others. I've tried using the GUICtrlSetPos and CommandMove method, both resize correctly, but as you can see by the example, it does not show ontop of all others. I've put two methods in the example to resize the central image. I am at a loss as to what can be done to "bring to front" for the image when resized.

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#include <GUIConstantsEx.au3>

$Form = GUICreate("GUI Order Example", 400, 300, 100,100)
$Pic1 = GUICtrlCreatePic("C:\Program Files\AutoIT3\Examples\GUI\mslogo.jpg", 50, 50, 255, 40)
$Pic2 = GUICtrlCreatePic("C:\Program Files\AutoIT3\Examples\GUI\mslogo.jpg", 50, 90, 255, 40)
$Pic3 = GUICtrlCreatePic("C:\Program Files\AutoIT3\Examples\GUI\mslogo.jpg", 50, 130, 255, 40)
$GUICtrlButton = GUICtrlCreateButton("GUICtrl Method", 60, 180, 80, 30)
$CmdCtrlButton = GUICtrlCreateButton("CmdCtrl Method", 160, 180, 80, 30)
$ResetGUIButton = GUICtrlCreateButton("Reset (Gui)", 60, 220, 80, 30)
$ResetCmdButton = GUICtrlCreateButton("Reset (Cmd)", 160, 220, 80, 30)
GUISetState(@SW_SHOW, $Form)

While 1
    $nMsg = GUIGetMsg($Form)
    Switch $nMsg

    Case $GUICtrlButton
        ; Move $Pic2 up and left by 1/4 of the dimensions so it remains central when size is doubled.
        ; Only reason for the formulas here is to show where the sizing came from.
        GUICtrlSetPos($Pic2, 50-(255/4), 90-(40/4), (255*2), (40*2))

    Case $CmdCtrlButton
        ; Move $Pic2 up and left by 1/4 of the dimensions so it remains central when size is doubled.
        ; Only reason for the formulas here is to show where the sizing came from.
        ControlMove($Form, "", $Pic2, 50-(255/4), 90-(40/4), (255*2), (40*2))

    Case $ResetGUIButton
        ; Reset $Pic2 back to original size
        GUICtrlSetPos($Pic2, 50, 90, 255, 40)

    Case $ResetCmdButton
        ; Reset $Pic2 back to original size
        ControlMove($Form, "", $Pic2, 50, 90, 255, 40)


    Case $GUI_EVENT_CLOSE
        Exit

    EndSwitch
Wend

I cant see anything in WinApi to work with a specific control and disabling the image does not make a difference. Any other suggestions aside from deleting and recreating the image when selected? This causes an unwanted 'flash' when its deleted and recreated. My apologies for including direct links to example files.

Thanks in advance

Steve

Edited November 10, 2010 by Steve0

[martin]

One way you could try is setting the style of pics that are to be covered to $WS_CLIPSIBLINGS.

Case $GUICtrlButton
        ; Move $Pic2 up and left by 1/4 of the dimensions so it remains central when size is doubled.
        ; Only reason for the formulas here is to show where the sizing came from.
        $style = _Winapi_getwindowlong(GUICtrlGetHandle($Pic3),$GWL_STYLE);needs winapi.au3 and constants.au3
         _Winapi_setwindowlong(GUICtrlGetHandle($Pic3),$GWL_STYLE,Bitand($style,$WS_CLIPSIBLINGS))
        GUICtrlSetPos($Pic2, 50-(255/4), 90-(40/4), (255*2), (40*2))

But you would need to reset the style each time and maybe ensure the pic is redrawn after resetting the sizes.

[martin]

Perhaps a better way is

Case $GUICtrlButton
        ; Move $Pic2 up and left by 1/4 of the dimensions so it remains central when size is doubled.
        ; Only reason for the formulas here is to show where the sizing came from.
      
        $iFlags = BitOR($SWP_SHOWWINDOW, $SWP_NOSIZE, $SWP_NOMOVE)
        _WinAPI_SetWindowPos(GUICtrlGetHandle($pic2) , $HWND_BOTTOM, 0, 0, 0, 0, $iFlags)

        GUICtrlSetPos($Pic2, 50-(255/4), 90-(40/4), (255*2), (40*2))

Edited November 10, 2010 by martin

[Steve0]

Simply marvellous. Many thanks for your quick responses, very much appreciated!!

Steve