Color management

Simulate BW monitor

BLACKWHITE

Activate a tweak in the palette handling that causes all colors to be replaced with the corresponding grayscale color. It works only on 8BPP palettized games or while emulating 16BPP on a 32BPP desktop.

Set 16BPP RGB565 encoding

USERGB565

By default, DxWnd emulates 16BPP color with RGB555 encoding. The option forces RGB565. This option only impacts the video in emulation mode and with 16BPP color depth.

Lock Sys Colors

LOCKSYSCOLORS

Suppresses the SetSysColors API that changes the colors of system elements, such as window borders and panel backgrounds. Some fullscreen games change these colors when they start and revert them when they exit, which is unnoticeable when these games run in fullscreen mode but very noticeable when they are run in a window. The only known game that needs this option is Western Front.

Lock reserved palette entries

LOCKRESERVEDPALETTE

This option simulates a lock on the system palette entries (usually 20 colors, corresponding to 0-9 and 246-255 in the 8-bit, 256-color palette entries), preventing DirectDraw calls from updating these values.

Disable setting gamma ramp

DISABLEGAMMARAMP

Prevents the API from altering the default gamma ramp, making the screen lighter or darker. Since the API affects the whole screen, this flag is mainly useful to prevent a game's gamma settings from affecting your entire desktop.