Detecting if another window has crossed your gui

[ChrisL]

When using anygui to add a picture to another gui sometimes if another window is dragged over the top the added picture doesn't always repaint. (See attached screen shot)

I can force it to repaint every 10 seconds or so but I was looking for a more elegant method for triggering a repaint.

Is it possible to detect when another window has been dragged over the top of your gui?

#include <guiconstants.au3>
#include <anyguiv2.8.au3>
Run ( "calc" )
WinWait ( "Calculator" )
$Pos = WinGetPos ( "Calculator" )
WinMove ( "Calculator", '', (@DesktopWidth-$Pos[2])/2, (@DesktopHeight-$Pos[3])/2, $Pos[2] + 47, $Pos[3] )
_GuiTarget ( "Calculator", 1 )
$Quit = _TargetAddButton ( "Quit", $Pos[2]-10, 37, 50, 29 )
$Quit = $Quit[0]
GUISetState ( )
_TargetAddLabel ( "Notepad", $Pos[2]-10, 66, 50, 18 )
GUISetState ( )
_TargetAddPic ( "D:\My Documents\AutoITscripts\OrderManager2\gfx\ONButton.bmp", $Pos[2]-10, 84, 50, 115 )

GUISetState ( )
While 1
    $msg = GUIGetMsg ( )
    If $msg = $Quit Then Exit
    If Not WinExists ( "Calculator" ) Then Exit
WEnd

Func OnAutoItExit()
    ProcessClose ( "calc.exe" )
EndFunc

[Siao]

Is it possible to detect when another window has been dragged over the top of your gui?

Not without polling (or system-wide hook) to check your window's rectangle against suspects' rectangles with IntersectRect API, I think.

Anyway, your problem is repaint, so that's what you should concentrate on.

;...
$aPic = _TargetAddPic ( "D:\My Documents blah blah")

GUIRegisterMsg($WM_PAINT, 'WM_PAINT')

;...

Func WM_PAINT($hWnd, $Msg, $wParam, $lParam)
    _WinAPI_InvalidateRect($aPic[1])
    Return $GUI_RUNDEFMSG
EndFunc

as a start.

[ChrisL]

Thats great thanks!