Finding out supported resolutions

[Bartman]

Hi

I'd like to find out whether the display adapter supports a particular Brume resolution. Because if we start in fullscreen with wrong resolution we fail with:

(D3DERR_INVALIDCALL)
at Microsoft.DirectX.Direct3D.Device..ctor(Int32 adapter, DeviceType deviceType, IntPtr renderWindowHandle, CreateFlags behaviorFlags, PresentParameters[] presentationParameters)
at Brume.DirectX9GraphicApi.InitEngineMode(BrumeInitStates initStates)
at Brume.Brume.BrumeInit()
at Brume.Brume.Play()

and end up in some kind of infinite loop of error messages with stack±

System.NullReferenceException: Object reference not set to an instance of an object.
at Brume.Brume.OnDeactivate(EventArgs e)
at System.Windows.Forms.Form.set_Active(Boolean value)
at System.Windows.Forms.Form.WmActivate(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at iQ3D.QuizForm.WndProc(Message& m) in C:\Documents and Settings\Bart\Mijn documenten\Visual Studio 2005\Projects\Subversion\work\iQ3D\Program.cs:line 426
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Any clue ? I did not see anything in Brume.GraphicCardCaps...

Thanks
Bart

[Silmaryls]

Hi Bart !

I'm sorry but there is actually no feature to do this with Brume.
I will add it for next release.

In the meantime you can try to do it directly using mdx Microsoft.DirectX.Direct3D.Manager.Adapters[x] member.
From there you can retrieve current display mode and other informations on supported formats (SupportedDisplayModes member)

Sorry,
Silmaryls

[Gero]

I'll add a feature for this next week. This would be only an item in an enum RESOLUTION_NOCHANGE, since every laptop has a monitor which can't handle the standard resolutions in fullscreen correctly but are mostly set up correct in windows.
this means, switching to fullscreen won't change the resolution.

[Bartman]

Thanks guys, this helped, now using code like:

Code: Select all

    class ScreenResolutions
    {
        public static bool Supported(BrumeInitParams displayMode)
        {
            int nAdapters = Microsoft.DirectX.Direct3D.Manager.Adapters.Count;
            if (nAdapters == 1)
            {
                AdapterInformation adi = Microsoft.DirectX.Direct3D.Manager.Adapters[0];
                foreach (DisplayMode mode in adi.SupportedDisplayModes)
                {
                    switch (displayMode)
                    {
                        case BrumeInitParams.RESOLUTION_800x600:
                            if (mode.Width == 800 && mode.Height == 600)
                                return true;
                            break;
                        case BrumeInitParams.RESOLUTION_1024x768:
                            if (mode.Width == 1024 && mode.Height == 768)
                                return true;
                            break;
                        case BrumeInitParams.RESOLUTION_1280x1024:
                            if (mode.Width == 1280 && mode.Height == 1024)
                                return true;
                            break;
                        case BrumeInitParams.RESOLUTION_1600x1200:
                            if (mode.Width == 1600 && mode.Height == 1200)
                                return true;
                            break;
                    }
                }
            }
            return false;
        }
    }