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MadaraUchiha

GDI Problem

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MadaraUchiha

Hey,

I tried drawing a line on my GUI like this:

#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <GuiConstantsEx.au3>
#include <GDIPlus.au3>


$Form1 = GUICreate("Form1", 404, 350, 192, 124)
$Button1 = GUICtrlCreateButton("Go", 8, 8, 75, 25)
GUISetState(@SW_SHOW)



While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
        Case $Button1
            $Hwnd = WinGetHandle($Form1)
            _GDIPlus_Startup()
            $hGraphics = _GDIPlus_GraphicsCreateFromHWND($Hwnd)
            _GDIPlus_GraphicsDrawLine($hGraphics,50,50,50,50)
    EndSwitch
WEnd

But nothing happens? Why is that? ;o


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JLogan3o13

Your parameters for GraphicsDrawLine are incorrect. Try this:

#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <GuiConstantsEx.au3>
#include <GDIPlus.au3>


$Form1 = GUICreate("Form1", 404, 350, 192, 124)
$Button1 = GUICtrlCreateButton("Go", 8,8,75,25)
GUISetState(@SW_SHOW)

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            ExitLoop
        Case $Button1
            _GDIPlus_Startup()
            $hGraphics = _GDIPlus_GraphicsCreateFromHWND($Form1)
            _GDIPlus_GraphicsDrawLine($hGraphics,10,150,390,150)
    EndSwitch
WEnd
  • Like 1

√-1 2^3 ∑ π, and it was delicious!

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MadaraUchiha

Yes, that works, but after minimizing and then restoring the GDI Stuff dissapeared from the GUI?

How can I prevent this?


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