Erst wenn ich das Window bewege erscheint die Grafik usw.

$MAKE CLE
$H Windows.ph


declare hWin&,hintergrpic&,vordergrpic&
declare ende&,winkel!,groesse&,dib&,array&
declare bild_auto&,auto1&,auto11&,pi180!
declare bmi#,ogl_rgb#
declare x1!,y1!,dx!,dy!
Declare ClassName$


Def &GL_BGR $80E0
DEF CreateDIB(2) !"dib","CreateDIB"
DEF FreeDIB(1) !"dib","FreeDIB"
DEF DrawDIB(4) !"dib","DrawDIB"
DEF CloneDIB(1) !"dib","CloneDIB"
dib&=usedll("dib.dll")


hintergrpic& = create("hNewPic", 400,400,rgb(255,255,0))
vordergrpic& = create("hNewPic", 400,400,rgb(255,255,0))
bild_auto& = create("hNewPic", 128,128,rgb(255,255,0))


Pi180!=0.0174532925199433
ende&=1
array&=CreateDIB(128,128)
groesse&=128*128*4
dim ogl_rgb#,groesse&
Window 20,20-800,600
Cls RGB(220,220,220)


startpaint hintergrpic&
UsePen 0,1,Rgb(0,255,0)
usebrush 1,rgb(0,255,0)
ellipse 150,150-250,250
endpaint


ClassName$ = "Fenster"
External("User32", "GetClassNameA", %HWnd, ClassName$, 64)
hWin& = Control(Trim$(ClassName$), "", $50000000, 10, 10, 128, 128, %HWnd, 0, %HInstance)


oGL("Init",hwin&,0,0,0,0)
oGL("PosMode", 1)


auto1&=oGL("LoadTextureBMP","d:/xprofan/pebi-xpia/data/auto1.bmp",1)
auto11&=oGL("LoadTextureBMP","d:/xprofan/pebi-xpia/data/auto11.bmp",1)


OGL("Clear")
OGL("texture",auto1&,1)


drawglscene
zeichne


WHILE ende&
if isKey(89)
OGL("texture",auto1&,1)
drawglscene
zeichne
ElseIf Iskey(65)
OGL("texture",auto11&,1)
drawglscene
zeichne
EndIf


if isKey(87)
y1!=Sin(-winkel!*Pi180!)*0.3
x1!=Cos(-winkel!*Pi180!)*0.3
dx!=dx!-x1!
dy!=dy!-y1!
zeichne
Elseif isKey(83)
y1!=Sin(-winkel!*Pi180!)*0.3
x1!=Cos(-winkel!*Pi180!)*0.3
dx!=dx!+x1!
dy!=dy!+y1!
zeichne
endif


if isKey(81)
winkel!=winkel!+0.5
drawglscene
zeichne
Elseif isKey(69)
winkel!=winkel!-0.5
drawglscene
zeichne
EndIf
EndWhile


FreeDIB(array&)
end


Proc zeichne
StartPaint vordergrpic&
DrawPic hintergrpic&,0,0;0
drawpic bild_auto&,50+dx!,50+dy!;-1
EndPaint
DrawPic vordergrpic&, 300,50;0
EndProc


proc drawglscene
OGL("quad",0.5,0.5)
OGL("origin",0,0,-1.2)
OGL("rotate",0,0,winkel!)
OGL("show")
ogl("glReadPixels",0,0,128,128,&GL_BGR, ~GL_UNSIGNED_BYTE,ogl_rgb#)
~setDIBits(%hdc,bild_auto&,0,128,ogl_rgb#,array&,0)
endproc