CloseWindow() problem

[BackupUser]

Restored from previous forum. Originally posted by Jose.

;
; Adapted sample Window.pb in samples, to demonstrate the problem
;

#G_EXIT = 1

lwMainWin = OpenWindow(0, 100, 100, 195, 260, #PB_Window_SystemMenu | #PB_Window_MinimizeGadget | #PB_Window_MaximizeGadget, "PureBasic Window")

Debug WindowID()

Debug lwMainWin ; produce same result as WindowID()

Debug WindowID(#G_EXIT) ; returns 0=#G_EXIT

If lwMainWin 0

If CreateGadgetList(WindowID())

ButtonGadget(#G_EXIT,50,50,73,25,"Exit")

EndIf

Repeat
EventID = WaitWindowEvent()

If EventID = #PB_EventGadget

Select EventGadgetID()
Case #G_EXIT ; Exit button Clickd

; If Debugger is off, program crashes

CloseWindow(lwMainWin) ; <--- Causes Debugger error message
; Window object number is very High (Over 5000) are you Sure?
; No options available in debug window, only QUIT available.

; CloseWindow(WindowID()) ; <--- Causes Same Error

; CloseWindow(#G_EXIT) ; Works

; CloseWindow(WindowID(#G_EXIT)) ; Works


EndSelect

EndIf

Until EventID = #PB_EventCloseWindow

EndIf

MessageRequester("Debugging", "Finished" , 0)
End

; OPenWindow() should return WindowID(#G_EXIT) instead of WindowID()
; or internal windows handle, there must be a reason for this behavior.

; Can some one explain?

; Would be nice in the documentation to distinguish between these two values,
; and also to explain their use in PB.

Thanks

[BackupUser]

Restored from previous forum. Originally posted by Danilo.

> lwMainWin = OpenWindow(0, ...
> [...]
> CloseWindow(lwMainWin)

Thats wrong.
CloseWindow(0) is right here, because
CloseWindow takes the internal PureBasic
number, like OpenWindow.

OpenWindow(1 .... -> CloseWindow(1)
OpenWindow(15 .. -> CloseWindow(15)

The value returned by OpenWindow and WindowID()
is the Windows OS handle for the Window.
This handle is used to mix PureBasic and Win32API
programming, but isnt needed with plain PureBasic
programming in general.

On Amiga and Linux it isnt the "Windows OS handle", you know...

cya,
...Danilo

(registered PureBasic user)

[BackupUser]

Restored from previous forum. Originally posted by PB.

> lwMainWin = OpenWindow(0, [snip]
> CloseWindow(WindowID()) ; <--- Causes Error

Like Danilo said above, you must use CloseWindow with the same number
that you used with OpenWindow. So in the above, you should be using
CloseWindow(0) because you used OpenWindow(0).


PB - Registered PureBasic Coder

[BackupUser]

Restored from previous forum. Originally posted by Jose.

So the reason for two types of pointers for windows is realy to handle the other OS's.

The docs for WindowID([#Window]) say;
Returns the unique ID which identifie the current window in the operating system. This functions is very useful when another library need a window reference. An optionnal #Window can be specified

It's the optional #Window that I'm interested in, this means that WindowID() will do a look-up to find the Windows handle for an internal PB ID, correct?

As seen in the sample code, this fails, could be a bug.
Thanks

[BackupUser]

Restored from previous forum. Originally posted by Danilo.

Its not a bug.

WindowID(1) returns the Windows Handle for Window Number 1.
WindowID(2) returns the Windows Handle for Window Number 2.

Its just that CloseWindow() and all other PB-WindowCommands
dont use the Handle returned by WindowID(), but use the
PureBasic internal number... 0, 1, 2, 3, ... and so on.

Use it for a while and you´ll see its not a bug.
Its just logical...

cya,
...Danilo

(registered PureBasic user)

[BackupUser]

Restored from previous forum. Originally posted by Jose.

Thanks Danilo, I'm getting the hang of it now.

Thanks for all the help you all provide.