GDI+ animation on gui

[topten]

Hello. I am trying to create preloader animation on gui.

I take one png transparent image, add another etc- supposed to be animation. The problem I am facing: What is the best way of deleting previous image created with gdi plus?

;;;;;          In the main code I create a picture:
Global $preloader = GUICtrlCreatePic("", 50, 180,0,0)

;;;;;          Later on using the function of changing images


func preloader()
if ($load == 1) then $png ="\1.png"
if ($load == 2) then $png ="2.png"
if ($load == 3) then $png ="3.png"
if ($load == 4) then $png ="4.png"
$hImage = _GDIPlus_ImageLoadFromFile($png)
$Bmp = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImage)
_WinAPI_DeleteObject(GUICtrlSendMsg($preloader, $STM_SETIMAGE, $IMAGE_BITMAP, $Bmp))
$load = $load+1
if $load>4 then $load=1
endfunc

 

[UEZ]

I know that your question has already been asked and answered with examples but I cannot find that thread. Anyhow just check out this example how to play an animated transparent GIF:

 

Same technique can be used for your PNG frames.