DirectDraw and Direct3D Settings

These DirectX settings allow you to change some of the DirectDraw and Direct3D video acceleration parameters.

Open your registry and find or create the key below.

Create a new DWORD value for each optional item from the list below and set it to "1" to enable the setting or "0" to disable it.

DisableAGPSupport - Disable AGP support
DisableMMX - Disable MMX processor extensions
DisableWiderSurfaces - Disable Wider Surfaces support
DisableInactivate - Disable dual-head video card debugging
EnablePrintScreen - Enable Print Screen capture
ModeXOnly - Use Mode-X for older video cards
ShowFrameRate - Display the frame rate (if supported)
DisableNoSysLock - Disable long-duration locks on video memory
ForceNoSysLock - Force use of long-duration locks on video memory
EmulationOnly - Enable software emulation layer for older video cards

Open the [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Direct3D] key and change the value of DisableDP2 to "1" to disable Direct3D, or "0" to enable it.

Open the [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Direct3D\Drivers] key and change the value of SoftwareOnly to "1" to use software emulation or "0" to disable it.



Settings:
System Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw]
Type: REG_DWORD (DWORD Value)
Value: (0 or 1)