question about Graphic controls

[SadBunny]

So... Why does a refresh command to control 2 also make control 1 refresh?

To battle the flickering in my AutoIt Analog/Digital Alarm Clock that I wrote this weekend and posted on the examples forum, I wrote my code to use multiple separately spaced Graphic controls. This so I could separately refresh the second dial or the digital time indication LED's that I built, so in turn only the changed Graphic control would flicker. Since it would flicker only when it changes, it would be acceptible als also less discernible.

But, after some work, it turned out that it didn't make a difference. So I wrote a small reproducer that creates two separate Graphic controls on a GUI, then fills them up with an overload of random Pie charts (to make it nice and heavy and obvious), then sends some refresh commands to the second control... Since it takes about .2 seconds to refresh (on my machine which is a very low end cheap 64 bits CPU with maybe say 2 bits of cache...), it is really visible that also the first control refreshes. How do I refresh ONLY a single Control, or why can't I do it?

#include <GUIConstants.au3>

$gui = GUICreate("test",600,400)

$Graphic1 = GUICtrlCreateGraphic(0,0,280,400)
$Graphic2 = GUICtrlCreateGraphic(300,0,280,400)

GUISetBkColor(0x000000)

GUICtrlSetGraphic($Graphic1,$GUI_GR_COLOR,0xFFFFFF,0xFF0000)
GUICtrlSetGraphic($Graphic2,$GUI_GR_COLOR,0x00FF00,0x0000FF)


For $filler1 = 1 To 1000
    GUICtrlSetGraphic($Graphic1,$GUI_GR_PIE,Random(280),Random(400),30,0,$filler1/10)
    GUICtrlSetGraphic($Graphic2,$GUI_GR_PIE,Random(280),Random(400),30,0,$filler1/10)
Next

GUICtrlSetGraphic($Graphic1,$GUI_GR_REFRESH)
GUICtrlSetGraphic($Graphic2,$GUI_GR_REFRESH)

GUISetState()

For $loop = 1 To 20
    Sleep(500)
    GUICtrlSetGraphic($Graphic2,$GUI_GR_REFRESH)
Next

MsgBox(0,0,"exit")

[weaponx]

I think you have to use something like Prospeed to overcome this, or Auto3Lib.

Edited January 30, 2008 by weaponx

[SadBunny]

Hmmz... Looks promising! I had no clue this existed. Thanks for the pointer!