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Minimizing FullScreen App

Started by zourtney Jan 23, 2003 at 3:06 AM 2 replies 200+ views

Original Post

Jan 23, 2003 at 3:06 AM

I am trying to write a simple 2d wrapper for DirectX, to get acquinted with it. The problem comes when you try to minimize the application. It seems to just disappear. I don''t know if it terminated abnormally or what. It no longer is in the taskbar or running in the processes. Any ideas? I also want to make sure that the surfaces are saved when I minimize and a flag ("PAUSED" or something) is set. Help!! zourtney

IFooBar

Jan 23, 2003 at 4:48 AM

Coulod be a problem with your message handler or maybe your not handling lost devices properly. What does your lost device and message handler code look like?

:::Al:::
[Triple Buffer V2.0] - Resource leak imminent. Memory status: Fragile

Bullmax

Jan 23, 2003 at 8:56 AM

You must Validate the Direct3D device before starting the rendering (Begin / End). I not sure of the right syntax, but it is something like that :


// D3D device initialized at startup //
LPDIRECT3DDEVICE8 pDevice;

// Parameters to used to create the D3D Device at startup //
D3DPRESENT_PARAMETERS objPresentParameters;

// Check for device availability //
HRESULT ValidateDevice( VOID )
{
    HRESULT hResult;
    
    hResult = pDevice->TestCooperativeLevel();
    if (FAILED(hResult))
    {
        if (hResult == D3DERR_DEVICELOST)
            return (E_FAIL);
        
        if (hResult == D3DERR_DEVICENOTRESET)
        {
            
            //*** Release objects here ***//
            
            if (FAILED(pDevice->Reset( &objPresentParameters )))
                return (E_FAIL);
            
            ClearScreen();
            
            //*** Reload objects here ***//
            
        }
    }
    
     return (S_OK);
}

/* Bullmax */
-------------
Reality has many forms : good and evil, black and white, yin and yang.

Bullmax

Jan 23, 2003 at 9:05 AM

Then in your main loop, you would validate the device before rendering :


VOID MainLoop( VOID )
{
    // ..... //
    
    if (SUCCEEDED(ValidateDevice( VOID )))
    {
        if (SUCCEEDED(pDevice->Begin()))
        {
            ClearScreen();
            
            //###[  RENDER EVERYTHING HERE  ]###//
            
            pDevice->End();
        }
    }
    
    // ..... //
}

/* Bullmax */
-------------
Reality has many forms : good and evil, black and white, yin and yang.

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