DisplayThe Display menu
allows you to set the display properties of the emulator like the display mode,
zoom and stretch, and window mode. You can also set the custom palette or
default palette and take snapshots of the current display.
Setting
fullscreen modeYou can set the emulator to display graphics in
fullscreen mode by going to the display sub-menu (in the
options menu) and selecting the Fullscreen menu item or
use the shortcut
Ctrl+F. You can also choose
which display mode is used in the fullscreen window by going to the modes
sub-menu in the display menu and select one of the display modes (all fullscreen
display modes use 8 bpp). The display mode will change immediately after
selecting the menu-item if you are in the fullscreen mode, otherwise the display
mode will be displayed when you change to the fullscreen mode. The default
display mode is 640x480x8. You can also choose to stretch the display so that it
fills the entire screen by selecting the Stretched menu item from the display
sub-menu. A check mark will be next to the display mode, stretched and
fullscreen menu items indicating the current selection.
Setting window
modeThe window mode is the default mode. You can switch to window mode
if you are in fullscreen mode by going to the display sub-menu and selecting the
fullscreen menu item or use the shortcut
Ctrl+F.
Display modes and the stretching option have no effect in window mode, but can
be selected so that the changes take effect when you choose to go to fullscreen
mode. You can also set the zoom level of the window by going to the display
sub-menu and choosing the x1, x2, x3, or x4 menu item. This will set how much
the window is resized in respect to the display dimensions. A check mark will be
next to the zoom menu item indicating the zoom level chosen.
Using
palettesYou can choose to use a custom palette or default palette by
going to the display sub-menu and selecting the palette menu item. The Palette
dialog box will be displayed, which will allow you to select the target palette
file to be loaded. If a palette file has already been loaded, it will be
displayed in the Palette dialog box. Navigate to the palette file and select the
Open button. If you want to use the default palette instead of a custom palette,
you can select the default button in the dialog box.

Palette files have a size of 768 bytes.
Each collection of 3 bytes define the RGB color. The C++ code to create the
palette would look like the following:
struct
rgb {
unsigned char r;
unsigned char
g;
unsigned char b;
}
rgb palette[255] =
{...}
Taking screen snapshotsYou can take snapshots of
the screen by going to the display sub-menu and selecting the snapshot menu item
or use the shortcut
F12. The snapshots are saved
as bitmap files. Every file is stored in .BMP format with the same name as ROM +
unique number (as in MESS, MAME).
For better conveniences, after cartridge loading, it is possible to
adjust a format of screenshots. Remove non-web
symbols - deletes from a name of a screenshot symbols which can
cause problems at the publication of pictures on the Internet. Replace spaces by "_" replaces all symbols
of space (" ") with an underlining sign "_" (it the problem of
compatibility with some web servers
dares).