01-25-2011
Your abstract questions of late need the context of a commercial requirement.
Hard to guess the requirement in this case:
1) If you are trying to write shell to answer the SSH question, it is better to configure the system so it does not ask the question.
2) If you just need to record screen output for documentation purposes, maybe consider quality PC-based terminal emulation software with screen logging features. This is not quite as sophisticated as it sounds because CRT terminals in the 1980s were capable of repeating the screen output to a serial port on the same terminal.
Ps. We don't want to make public information about unix terminal I/O which would assist anybody to write a keylogger, a password cracker or a virus.
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LEARN ABOUT ULTRIX
cellsofscreen
BlackPixelOfScreen(3X11) MIT X11R4 BlackPixelOfScreen(3X11)
Name
BlackPixelOfScreen, WhitePixelOfScreen, CellsOfScreen, DefaultColormapOfScreen, DefaultDepthOfScreen, DefaultGCOfScreen, DefaultVisualOf-
Screen, DoesBackingStore, DoesSaveUnders, DisplayOfScreen, XScreenNumberOfScreen, EventMaskOfScreen, HeightOfScreen, HeightMMOfScreen, Max-
CmapsOfScreen, MinCmapsOfScreen, PlanesOfScreen, RootWindowOfScreen, WidthOfScreen, WidthMMOfScreen - screen information functions and
macros
Syntax
BlackPixelOfScreen(screen)
WhitePixelOfScreen(screen)
CellsOfScreen(screen)
DefaultColormapOfScreen(screen)
DefaultDepthOfScreen(screen)
DefaultGCOfScreen(screen)
DefaultVisualOfScreen(screen)
DoesBackingStore(screen)
DoesSaveUnders(screen)
DisplayOfScreen(screen)
int XScreenNumberOfScreen(screen)
Screen *screen;
EventMaskOfScreen(screen)
HeightOfScreen(screen)
HeightMMOfScreen(screen)
MaxCmapsOfScreen(screen)
MinCmapsOfScreen(screen)
PlanesOfScreen(screen)
RootWindowOfScreen(screen)
WidthOfScreen(screen)
WidthMMOfScreen(screen)
Arguments
screen Specifies a pointer to the appropriate structure.
Description
The macro returns the black pixel value of the specified screen.
The macro returns the white pixel value of the specified screen.
The macro returns the number of colormap cells in the default colormap of the specified screen.
The macro returns the default colormap of the specified screen.
The macro returns the default depth of the root window of the specified screen.
The macro returns the default GC of the specified screen, which has the same depth as the root window of the screen.
The macro returns the default visual of the specified screen.
The macro returns or which indicate whether the screen supports backing stores.
The macro returns a Boolean value indicating whether the screen supports save unders.
The macro returns the display of the specified screen.
The function returns the screen index number of the specified screen.
The macro returns the root event mask of the root window for the specified screen at connection setup.
The macro returns the height of the specified screen.
The macro returns the height of the specified screen in millimeters.
The macro returns the maximum number of installed colormaps supported by the specified screen.
The macro returns the minimum number of installed colormaps supported by the specified screen.
The macro returns the number of planes in the root window of the specified screen.
The macro returns the root window of the specified screen.
The macro returns the width of the specified screen.
The macro returns the width of the specified screen in millimeters.
See Also
AllPlanes(3X11), ImageByteOrder(3X11), IsCursorKey(3X11)
X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys
BlackPixelOfScreen(3X11)