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Intel® Digital Set Top Box Display Driver 19
User’s Guide for Microsoft* Windows* CE 5.0
4.1.5 GDI Options
The following option is a GDI option that indirectly affects the display driver. The display driver does not read this
key. Instead, it affects how GDI calls the display driver. For more information, search for “ForceGRAY16” on
www.microsoft.com\msdn.
[HKEY_LOCAL_MACHINE\System\GDI]
ForceGRAY16 <DWORD>
This key controls GDI anti-aliasing.
4.1.6 Video Options
The display driver supports a number of options to control video rendering. See the 2D Graphics Options section
above for additional options that affect video rendering.
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectX\DirectShow\Video Renderer]
The following settings affect the direct show video renderer.
MaxBackBuffers <DWORD>
This setting determines if single, double, or triple buffering is used. This is the number of back buffers, so please
keep in mind that you have a primary buffer as well. Setting this to 0 gives you single buffering, 1 – double
buffering, and 2 – triple buffering.
KeyColor <HEX>
This setting configures the color key. This value is in R-G-B format in HEX and corresponds to the color drawn on
the frame buffer in areas where the video overlay is to be positioned.
Note: The key can be changed at run-time, but Media Player must be restarted to pick up the change. In cases where
this is being used to debug an issue, choose a bright color. The default color tends to be dark grey or black, which
can hardly be differentiated from the video image.