I guess this is a long shot - not sure if anyone can answer this...
So CGA 640 x 200 mode (SCREEN 2 in BASIC) "should" be 2 color mode. By default Black is background color, white foreground color. By definition it should be possible to set the foreground color to one of 16 CGA palette colors. I've made so many Black&White appz for this mode, but i noticed some games like Kings Quest use shades of grey on a monochrome 640x200 screen. heck even Microsofts "Visual basic 1.0 for DOS" uses grey scale while they say in the HELP text that "SCREEN 2" is only 1-Bit - Black or white. The irony... So how do you actually use greyscale in 640x200 monochrome? Is that some kinda hack that everyone knew back in the days?
Wikipedia has a wondeful example of how my graphics look in 640x200 @ Black&White:
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So CGA 640 x 200 mode (SCREEN 2 in BASIC) "should" be 2 color mode. By default Black is background color, white foreground color. By definition it should be possible to set the foreground color to one of 16 CGA palette colors. I've made so many Black&White appz for this mode, but i noticed some games like Kings Quest use shades of grey on a monochrome 640x200 screen. heck even Microsofts "Visual basic 1.0 for DOS" uses grey scale while they say in the HELP text that "SCREEN 2" is only 1-Bit - Black or white. The irony... So how do you actually use greyscale in 640x200 monochrome? Is that some kinda hack that everyone knew back in the days?
Wikipedia has a wondeful example of how my graphics look in 640x200 @ Black&White:
