typedef struct
{
	bool	m_bFullScreen;
	int	m_iResolution;
	bool	m_bDQ32bit;
	bool	m_bTQ32bit;
	bool	m_bSound;
	char	m_sDemoName[DGL_SD_STRINGLENGTH];
	char	m_sReleasedBy[DGL_SD_STRINGLENGTH];
	bool	m_bSaveInRegistry;
	bool	m_bRescaleTextures;
	bool	m_bSS_3DSound;
	int	m_iSS_SoundDevice;
	bool	m_bSS_Stereo;
	bool	m_bSS_16bit;
	bool	m_bSS_LowQuality;
	bool	m_bSS_A3D;
	bool	m_bSS_EAX;
	int	m_iSS_OverallVolume;
} SStartupDat;

m_bFullScreen

Specifies if the option 'full screen' should be selected (true) or 'windowed' (false).

m_iResolution

Specifies which of the supported resolution should be selected. m_iResolution can be one of the following resolution constants:

Resolution Constant	Resolution in pixels
DGL_RES_320x240	320 x 240
DGL_RES_400x300	400 x 300
DGL_RES_512x384	512 x 384
DGL_RES_640x480	640 x 480
DGL_RES_800x600	800 x 600
DGL_RES_960x720	960 x 720
DGL_RES_1024x768	1024 x 768
DGL_RES_1152x864	1152 x 864
DGL_RES_1280x1024	1280 x 1024
DGL_RES_1600x1200	1600 x 1200. Be careful, not all monitors can handle this resolution.
DGL_RES_2048x1536	2048 x 1536. Be careful, not all monitors can handle this resolution.

m_bDQ32bit

Specifies if 32bits per pixel should be used in the color buffer (true) or 16bits per pixel (false).

m_bTQ32bit

Specifies if 32bits per pixel textures should be used (true) or 16bits per pixel textures (false). It's recommended to specify true with m_bTQ32bit, and switch color fragment depth with m_bDQ32bit, because this gives better results due to the better dithering of the overall colorbuffer instead of the already dithered textures.

m_bSound

Specifies if the user can select any sound devices (true) or that sound is disabled and can't be enabled (false).

m_sDemoName

Specifies the name of the application, or better: the application title. Should be terminated with a zero.

m_sReleasedBy

Specifies te name of the producer of the application. Should be terminated with a a zero.

m_bSaveInRegistry

Specifies if the option 'Save settings in registry' should be selected (true) or not (false). Will not have any effect when the RunType is RUNTYPE_NODIALOG.

m_bRescaleTextures

Specifies if the option 'Rescale textures if needed' should be selected (true) or not (false). Depends on the variable DGL_VF_NEVERRESCALETEXTURES, settable with DEMOGL_SetVariable(3), if the setting has any effect.

m_bSS_3DSound

Specifies if 3D sound calculations should be processed on 3D enabled sound channels (true) or not (false).

m_iSS_SoundDevice

Specifies which device should be chosen for sound playback or should be selected in the dropdown list in the startup dialog. m_iSS_SoundDevice is an index, starting with 0, in the SSoundSystemOptionDat structure returned by DEMOGL_SoundSystemDetermineOptionsData. You can specify a prefered device using m_iSS_SoundDevice, or specifiy 0 if you want the user to select the device, you then also don't have to call DEMOGL_SoundSystemDetermineOptionsData because DemoGL will do that for you. When the RunType is RUNTYPE_NODIALOG, m_iSS_SoundDevice should be set to the right device otherwise no sound can be played. You then must call DEMOGL_SoundSystemDetermineOptionsData before using SStartupDat.

m_bSS_Stereo

Specifies if the 'stereo' option should be selected (true) or mono (false).

m_bSS_16bit

Specifies if the '16bit' sound option should be selected (true) or '8bit' (false) sound.

m_bSS_LowQuality

Specifies if the 'Low quality' sound option should be selected (true) or not (false). Low quality will result in 22.1khz output, which saves some CPU power.

m_bSS_A3D

Specifies if the A3D option should be selected (true) or not (false). It depends on the selected device if A3D is used or not.

m_bSS_EAX

Specifies if the EAX option should be selected (true) or not (false). It depends on the selected device if EAX is used or not.

m_iSS_OverallVolume

Specifies the overall volume of the sound output, as is visualized with the slider in the startup dialog. Legal values fall in the range of [0,100], with 0 is total silence and 100 is the current wave output volume as selected in Windows.