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fullscreen switch

Started by killan May 15, 2006 at 4:59 PM 22 replies 4.1k views

Original Post

May 15, 2006 at 4:59 PM

before, sorry for my poor english. hi everybody, i work with C# and directx9 and i want to make a function to switch from windowed mode to fullscreen mode and inverse i have this to start my device (and this work well) :


DevPresentParameters = new PresentParameters();

DevPresentParameters.PresentationInterval = PresentInterval.Immediate;
DevPresentParameters.BackBufferCount = 1;

if (setup.pleinecran == true)
{
	GRAP.logs.Ajout("Ecran init> "+GRAP.GetDonnee(TypesDonnee.Langage, "err22"));

	DevPresentParameters.Windowed = false;

	this.FormBorderstyle = FormBorderstyle.None;
	//this.Size = setup.primaire_res;					//On sais pas si cette ligne est utile
	this.ClientSize = setup.primaire_res;			//La résolution
	DevPresentParameters.BackBufferHeight = this.ClientRectangle.Bottom - this.ClientRectangle.Top; //this.Size.Height;
	DevPresentParameters.BackBufferWidth = this.ClientRectangle.Right - this.ClientRectangle.Left; //this.Size.Width;
	DevPresentParameters.BackBufferFormat = setup.primaire_format;
}
else
{
	GRAP.logs.Ajout("Ecran init> "+GRAP.GetDonnee(TypesDonnee.Langage, "err23"));

	DevPresentParameters.Windowed = true;

	this.FormBorderstyle = FormBorderstyle.FixedDialog;
	this.Size = setup.primaire_res; //Taille externe, formulaire compris
}

GRAP.logs.Ajout("Ecran init> Paramètre présentation");
DevPresentParameters.SwapEffect = SwapEffect.Discard;

//Z-buffer
DevPresentParameters.EnableAutoDepthStencil = true; 
DevPresentParameters.AutoDepthStencilFormat = DepthFormat.D16;

//Le Device
GRAP.logs.Ajout("Ecran init> "+GRAP.GetDonnee(TypesDonnee.Langage, "err24"));
try
{
	try
	{
		GRAP.logs.Ajout("Ecran init> CreateFlags.HardwareVertexProcessing");
		device = new Device(0, DeviceType.Hardware, this, CreateFlags.HardwareVertexProcessing, DevPresentParameters);
	}
	catch
	{
		GRAP.logs.Ajout("Ecran init> CreateFlags.SoftwareVertexProcessing");
		device = new Device(0, DeviceType.Hardware, this, CreateFlags.SoftwareVertexProcessing, DevPresentParameters);
	}

	device.DeviceLost += new EventHandler(GRAP.onDeviceLost);
	device.DeviceReset += new EventHandler(GRAP.onDeviceReset);
	device.DeviceResizing += new CancelEventHandler(GRAP.onDeviceResizing);
	device.Disposing += new EventHandler(GRAP.onDisposing);
}
catch (Exception e)
{
	GRAP.logs.Ajout("Ecran init> "+GRAP.GetDonnee(TypesDonnee.Langage, "err25")+" : "+e.Message);
	GRAP.Status = GRA_Status.exit;
	return;
}

and for the switch function :


public void SwitchWindowedMode()
{
	logs.Ajout("GRA> SwitchWindowedMode");
	PresentParameters pres = ecran_primaire.DevPresentParameters;
	GRA_Setup setup = (GRA_Setup)GetDonnee(TypesDonnee.Objets, "setup");

	pres.Windowed = !pres.Windowed;
	pres.BackBufferHeight = ecran_primaire.ClientRectangle.Bottom - ecran_primaire.ClientRectangle.Top; //this.Size.Height;
	pres.BackBufferWidth = ecran_primaire.ClientRectangle.Right - ecran_primaire.ClientRectangle.Left; //this.Size.Width;

	if (pres.Windowed == false)
	{
		ecran_primaire.ClientSize = setup.primaire_res;			//La résolution
	}
	else
	{
		ecran_primaire.ClientSize = new Size(320,240);
		ecran_primaire.Size = setup.primaire_res;
		ecran_primaire.FormBorderstyle = FormBorderstyle.FixedDialog;
	}

	pres.BackBufferFormat = setup.primaire_format;

	ecran_primaire.device.Reset(pres);
}

this failed at the last line but the error message is just "error in the application" without more explanations can you help me ? thank you [Edited by - killan on May 18, 2006 5:14:28 AM]

remigius

112

remigius

May 15, 2006 at 5:11 PM

To get some decent error messages from DirectX, you have to switch to the Debug Runtime in the control panel (more info). To see the output that's generated by this debug runtime, you have to check the Enable Unmanaged Debugging on the Debug tab of your project's property sheet (right-click on project name, select properties). If you're using the Visual Studio 2005 Express Edition though, this option isn't available (at least it wasn't a month ago), so you're out of luck if that's the case.

Please put your code between [ source lang=c# ] ... [ /source ] tags (without the spaces). That way it should be a bit easier to read and the problem might be easier for us to find. At first glance, I'd say the fullscreen backbuffer size you specifiy isn't supported by your device, since the client rectangle excludes the region of the task bar iirc, giving you resolutions like 1024*738. You could try using System.Windows.Forms.Screen.Primary.Bounds to obtain a supported size for the fullscreen backbuffer.

Hope this helps :)

Orcy

May 15, 2006 at 5:22 PM

I think u have to dispose the device and create it new with the PresentParamters for the mode u wish. I guess Device.Reset() only works on a 'lost' device.

LowRad

May 15, 2006 at 7:06 PM

Quote:
Original post by Orcy
I think u have to dispose the device and create it new with the PresentParamters for the mode u wish. I guess Device.Reset() only works on a 'lost' device.

No, Reset can be used to changed the PresentParameters... its not necessary that the device is in LostState. If the call to Reset failed, the device is going to be in a lost state (check with CheckCooperativeLevel).

So, no need to dispose the device and recreate it.

Reset is the fastest way of switching between fullscreen and windowed mode.

Jonathan

LeGreg

May 15, 2006 at 10:19 PM

Quote:
Original post by killan
this failed at the last line but the error message is just "error in the application" without more explanations

Bonjour,

before calling Reset you have to release all objects that are not created with the POOL_MANAGED, (that includes potentially textures, Surfaces, VB, stateblocks etc)

Make sure this is the case

LeGreg

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