MINIMIZE

Sounds like your surfaces are getting lost.
Your app needs to detect when its losing/gaining focus (check out windows messages in MSDN) and reload bitmaps and restore surfaces.
You''ll get info on this on the microsoft directX site.

quote:

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Original post by Carrot
Sounds like your surfaces are getting lost.
Your app needs to detect when its losing/gaining focus (check out windows messages in MSDN) and reload bitmaps and restore surfaces.
You''ll get info on this on the microsoft directX site.

---

OK, How I can detect if my program lost the focus, with Form_Deactivate() event ?, and I need reload all surfaces including primary and secundary surfaces, or offscreen surfaces only ?

Thanks !!



Ing. Mike

When ur program is activated or desactivated u receive a WM_ACTIVATE or WM_ACTIVEAPP message(check mdsn for that).

Then to check if ur surface has gone u use UrSurface.IsLost() function. And to restore it u use UrSurface.Restore().

But i heard like u can call a RestoreAllSurface() from ur primary surface for restoring all the surfaces without calling Restore from all ur onscreen and offscreen surfaces.

Hope this help


[edited by - remi on May 30, 2002 12:54:24 PM]

quote:

---

Original post by remi
When ur program is activated or desactivated u receive a WM_ACTIVATE or WM_ACTIVEAPP message(check mdsn for that).

Then to check if ur surface has gone u use UrSurface.IsLost() function. And to restore it u use UrSurface.Restore().

But i heard like u can call a RestoreAllSurface() from ur primary surface for restoring all the surfaces without calling Restore from all ur onscreen and offscreen surfaces.

Hope this help


[edited by - remi on May 30, 2002 12:54:24 PM]

---

Thanks for your help, but I doing this and the program return the DDERR_WRONGMODE error, check this please:

----------------------------------------------
This code detect if the program lost the focus
into the main loop
----------------------------------------------

Sorry for not tell you, I'm using VisualBasic.


            HWND_ACTIVO = GetActiveWindow
                        
            If HWND_ACTIVO <> DX_CAT.hWnd Then
                Do
                    HWND_ACTIVO = GetActiveWindow
                    DoEvents
                Loop While HWND_ACTIVO <> DX_CAT.hWnd
                            
                CHECAR_SUPERFICIES_PERDIDAS
                            
            End If



   

------------------------------------------
This code restore all surfaces if is lost
------------------------------------------

Sub CHECAR_SUPERFICIES_PERDIDAS ()

'Primary surface
If PRIMARIO.SUPER.isLost = DDERR_SURFACELOST Then PRIMARIO.SUPER.restore
'Secundary surface
If SECUNDARIO.SUPER.isLost = DDERR_SURFACELOST Then SECUNDARIO.SUPER.restore

'All surfaces

For I = 1 To UBound(IMAGENES)
    If IMAGENES(I).SUPER.isLost = DDERR_SURFACELOST Then IMAGENES(I).SUPER.restore
Next I

For I = 1 To UBound(IMG_CAT)
    If IMG_CAT(I).SUPER.isLost = DDERR_SURFACELOST Then IMG_CAT(I).SUPER.restore
Next I

For I = 1 To UBound(BOTON)
    If BOTON(I).BOT_SUPER.isLost = DDERR_SURFACELOST Then BOTON(I).BOT_SUPER.restore
Next I

End Sub


   

Ing. Mike

[edited by - Mikecrosoft on May 30, 2002 2:04:22 PM]

[edited by - Mikecrosoft on May 30, 2002 2:06:13 PM]

One solution is lock ALT+TAB or other key that could minimize the program, How I can do this ?

Thanks !!!


Ing. Mike