Drawing on a non PB created window?

[nicolaus]

Hi

I have a Window wat is not crated bei PB and so i have only the handle but not the id of the Window.
How i can draw with the drawing functions from PB into this window?
You know for StartDrawing() we must set the WindowOutput() function with the ID of the window, but i don´t have the ID only the handle.

Thanks
Nico

[lexvictory]

windowid = hwnd

does that help?

[DarkDragon]

Code: Select all

!extrn _PB_2DDrawing_GlobalStructure

Procedure StartDrawingEx(hWindow)
  Protected hDC.l
  
  hDC = GetDC_(hWindow)
  
  !MOV EAX, [p.v_hDC]
  !MOV [_PB_2DDrawing_GlobalStructure], EAX
  
  ProcedureReturn 1
EndProcedure

Procedure StopDrawingEx(hWindow)
  Protected hDC.l
  
  hDC = 0
  
  !MOV EAX,[_PB_2DDrawing_GlobalStructure]
  !MOV [p.v_hDC], EAX
  
  ReleaseDC_(hWindow, hDC)
EndProcedure

OpenWindow(0, 0, 0, 640, 480, "Test")

Repeat
  StartDrawingEx(WindowID(0))
  Box(10, 10, 400, 300, RGB(255, 0, 0))
  LineXY(200, 100, 250, 300, RGB(255, 255, 0))
  StopDrawingEx(WindowID(0))
  Delay(10)
Until WindowEvent() = #PB_Event_CloseWindow

It works! I got a Assembler routine to work!

[SoulReaper]

does not work here says assembler error...

Undefined symbols...

Good Job though

[lexvictory]

works here, but im still using 4.0..

[DarkDragon]

does not work here says assembler error...

Undefined symbols...

Good Job though

Turn threadsafe off. And visit this link: http://www.purebasic.fr/english/viewtop ... highlight=

[SoulReaper]

oh i see never thought of that with threadsafe off