GDI Plus Problem

Ineluki

Hab heute nun auch mal mit GDI+ angefangen. Schon das 1. Problem.

Spoiler anzeigen

[autoit]

#include <GDIPlus.au3>
#include <Misc.au3>
Global $x=20, $y=180
Const $Width=15, $Height=15
HotKeySet("{ESC}", "quit")
_GDIPlus_Startup()
$hGUI = GUICreate("Test", 354, 210, 192, 124, 0x80000000+0x00800000)
$hGraphics=_GDIPlus_GraphicsCreateFromHWND($hGUI)
GUISetBkColor(0x000000)
GUISetState(@SW_SHOW)
$Pen1=_GDIPlus_PenCreate(0xFFFFFFFF)
_GDIPlus_GraphicsDrawPie($hGraphics, $x, $y, $Width, $Height, 0, 180, $Pen1)
While 1
Switch GUIGetMsg()
Case -3
quit()
EndSwitch
If _isPressed(27) And $x<314 Then
$x+=1
_GDIPlus_GraphicsClear($hGraphics)
_GDIPlus_GraphicsDrawPie($hGraphics, $x, $y, $Width, $Height, 0, 180, $Pen1)
EndIF
If _isPressed(25) And $x>20 Then
$x-=1
_GDIPlus_GraphicsClear($hGraphics)
_GDIPlus_GraphicsDrawPie($hGraphics, $x, $y, $Width, $Height, 0, 180, $Pen1)
EndIF
WEnd
Func quit()
_GDIPlus_PenDispose($Pen1)
_GDIPlus_GraphicsDispose($hGraphics)
_GDIPlus_Shutdown()
Exit
EndFunc

[/autoit]

Wenn ich nun den Halbkreis bewegen will (linke und rechte Pfeiltaste), flackert es ziemlich stark. Ich hab mal ab und zu gelesen, dass man den Buffer benutzen muss/soll, hab aber leider keine Ahnung, wie ich das machen soll. Wie gesagt, bin noch sehr neu in GDI+.

stayawayknight

Lies dir am besten mal das GDI+ Tutorial von Ubuntu durch. Da wird das sehr gut erklärt!

Ineluki

Ich krieg das immernoch nicht hin

Spoiler anzeigen

[autoit]

#include <GDIPlus.au3>
#include <Misc.au3>
Global $x=20, $y=180
Const $Width=15, $Height=15
HotKeySet("{ESC}", "quit")
_GDIPlus_Startup()
$hGUI = GUICreate("Test", 354, 210, 192, 124, 0x80000000+0x00800000)
$hGraphics=_GDIPlus_GraphicsCreateFromHWND($hGUI)
$hBitmap = _GDIPlus_BitmapCreateFromGraphics(354, 210, $hGraphics)
$hBuffer = _GDIPlus_ImageGetGraphicsContext($hBitmap)
GUISetBkColor(0x000000)
GUISetState(@SW_SHOW)
$Pen1=_GDIPlus_PenCreate(0xFFFFFFFF)
_GDIPlus_GraphicsDrawPie($hGraphics, $x, $y, $Width, $Height, 0, 180, $Pen1)
While 1
Switch GUIGetMsg()
Case -3
quit()
EndSwitch
If _isPressed(27) And $x<314 Then
$x+=1
_GDIPlus_GraphicsClear($hGraphics)
_GDIPlus_GraphicsClear($hBuffer)
_GDIPlus_GraphicsDrawPie($hBuffer, $x, $y, $Width, $Height, 0, 180, $Pen1)
_GDIPlus_GraphicsDrawImageRect($hGraphics, $hBitmap, 0, 0, 354, 210)
EndIF
If _isPressed(25) And $x>20 Then
$x-=1
_GDIPlus_GraphicsClear($hGraphics)
_GDIPlus_GraphicsClear($hBuffer)
_GDIPlus_GraphicsDrawPie($hBuffer, $x, $y, $Width, $Height, 0, 180, $Pen1)
_GDIPlus_GraphicsDrawImageRect($hGraphics, $hBitmap, 0, 0, 354, 210)
EndIF
WEnd
Func quit()
_GDIPlus_PenDispose($Pen1)
_GDIPlus_GraphicsDispose($hGraphics)
_GDIPlus_GraphicsDispose($hBuffer)
_GDIPlus_BitmapDispose($hBitmap)
_GDIPlus_Shutdown()
Exit
EndFunc

[/autoit]

Es flackert immer noch. Ich bin mir ziemlich sicher, dass ich irgendwas im Tut falsch verstanden habe. Nur was?
Edit: geht jetzt:

Spoiler anzeigen

[autoit]

#include <GDIPlus.au3>
#include <Misc.au3>
Global $x=20, $y=180
Const $Width=15, $Height=15
HotKeySet("{ESC}", "quit")
_GDIPlus_Startup()
$hGUI = GUICreate("Test", 354, 210, 192, 124, 0x80000000+0x00800000)
$hGraphics=_GDIPlus_GraphicsCreateFromHWND($hGUI)
$hBitmap = _GDIPlus_BitmapCreateFromGraphics(354, 210, $hGraphics)
$hBuffer = _GDIPlus_ImageGetGraphicsContext($hBitmap)
GUISetBkColor(0x000000)
GUISetState(@SW_SHOW)
$Pen1=_GDIPlus_PenCreate(0xFFFFFFFF)
_GDIPlus_GraphicsDrawPie($hGraphics, $x, $y, $Width, $Height, 0, 180, $Pen1)
While 1
Switch GUIGetMsg()
Case -3
quit()
EndSwitch
If _isPressed(27) And $x<314 Then
$x+=1
_GDIPlus_GraphicsClear($hBuffer)
_GDIPlus_GraphicsDrawPie($hBuffer, $x, $y, $Width, $Height, 0, 180, $Pen1)
_GDIPlus_GraphicsDrawImageRect($hGraphics, $hBitmap, 0, 0, 354, 210)
EndIF
If _isPressed(25) And $x>20 Then
$x-=1
_GDIPlus_GraphicsClear($hBuffer)
_GDIPlus_GraphicsDrawPie($hBuffer, $x, $y, $Width, $Height, 0, 180, $Pen1)
_GDIPlus_GraphicsDrawImageRect($hGraphics, $hBitmap, 0, 0, 354, 210)
EndIF
WEnd
Func quit()
_GDIPlus_PenDispose($Pen1)
_GDIPlus_GraphicsDispose($hGraphics)
_GDIPlus_GraphicsDispose($hBuffer)
_GDIPlus_BitmapDispose($hBitmap)
_GDIPlus_Shutdown()
Exit
EndFunc

[/autoit]

Danke