Provided by: libx11-doc_1.6.9-2ubuntu1_all bug

NAME

       AllPlanes,   BlackPixel,   WhitePixel,  ConnectionNumber,  DefaultColormap,  DefaultDepth,
       XListDepths,   DefaultGC,   DefaultRootWindow,   DefaultScreenOfDisplay,    DefaultScreen,
       DefaultVisual,     DisplayCells,     DisplayPlanes,     DisplayString,    XMaxRequestSize,
       XExtendedMaxRequestSize,    LastKnownRequestProcessed,    NextRequest,    ProtocolVersion,
       ProtocolRevision,   QLength,   RootWindow,   ScreenCount,  ScreenOfDisplay,  ServerVendor,
       VendorRelease - Display macros and functions

SYNTAX

       unsigned long AllPlanes;

       unsigned long BlackPixel(Display *display, int screen_number);

       unsigned long WhitePixel(Display *display, int screen_number);

       int ConnectionNumber(Display *display);

       Colormap DefaultColormap(Display *display, int screen_number);

       int DefaultDepth(Display *display, int screen_number);

       int *XListDepths(Display *display, int screen_number, int count_return);

       GC DefaultGC(Display *display, int screen_number);

       Window DefaultRootWindow(Display *display);

       Screen *DefaultScreenOfDisplay(Display *display);

       int DefaultScreen(Display *display);

       Visual *DefaultVisual(Display *display, int screen_number);

       int DisplayCells(Display *display, int screen_number);

       int DisplayPlanes(Display *display, int screen_number);

       char *DisplayString(Display *display);

       long XMaxRequestSize(Display *display)

       long XExtendedMaxRequestSize(Display *display)

       unsigned long LastKnownRequestProcessed(Display *display);

       unsigned long NextRequest(Display *display);

       int ProtocolVersion(Display *display);

       int ProtocolRevision(Display *display);

       int QLength(Display *display);

       Window RootWindow(Display *display, int screen_number);

       int ScreenCount(Display *display);

       Screen *ScreenOfDisplay(Display *display, int screen_number);

       char *ServerVendor(Display *display)

       int VendorRelease(Display *display)

ARGUMENTS

       display   Specifies the connection to the X server.

       screen_number
                 Specifies the appropriate screen number on the host server.

       count_return
                 Returns the number of depths.

DESCRIPTION

       The AllPlanes macro returns a value with all bits set to 1 suitable for  use  in  a  plane
       argument to a procedure.

       The BlackPixel macro returns the black pixel value for the specified screen.

       The WhitePixel macro returns the white pixel value for the specified screen.

       The ConnectionNumber macro returns a connection number for the specified display.

       The  DefaultColormap macro returns the default colormap ID for allocation on the specified
       screen.

       The DefaultDepth macro returns the depth (number of planes) of the default root window for
       the specified screen.

       The  XListDepths  function returns the array of depths that are available on the specified
       screen.  If the specified screen_number is valid and sufficient memory for the  array  can
       be allocated, XListDepths sets count_return to the number of available depths.  Otherwise,
       it does not set count_return and returns NULL.  To release the memory  allocated  for  the
       array of depths, use XFree.

       The DefaultGC macro returns the default GC for the root window of the specified screen.

       The DefaultRootWindow macro returns the root window for the default screen.

       The DefaultScreenOfDisplay macro returns the default screen of the specified display.

       The  DefaultScreen  macro returns the default screen number referenced in the XOpenDisplay
       routine.

       The DefaultVisual macro returns the default visual type for the specified screen.

       The DisplayCells macro returns the number of entries in the default colormap.

       The DisplayPlanes macro returns the depth of the root window of the specified screen.

       The DisplayString macro returns the string  that  was  passed  to  XOpenDisplay  when  the
       current display was opened.

       The  XMaxRequestSize function returns the maximum request size (in 4-byte units) supported
       by the server  without  using  an  extended-length  protocol  encoding.   Single  protocol
       requests  to the server can be no larger than this size unless an extended-length protocol
       encoding is supported by the server.  The protocol guarantees the size to  be  no  smaller
       than  4096  units (16384 bytes).  Xlib automatically breaks data up into multiple protocol
       requests  as  necessary  for  the  following  functions:   XDrawPoints,   XDrawRectangles,
       XDrawSegments, XFillArcs, XFillRectangles, and XPutImage.

       The  XExtendedMaxRequestSize  function  returns  zero  if  the  specified display does not
       support an extended-length protocol encoding; otherwise, it returns  the  maximum  request
       size  (in  4-byte  units) supported by the server using the extended-length encoding.  The
       Xlib functions XDrawLines, XDrawArcs, XFillPolygon,  XChangeProperty,  XSetClipRectangles,
       and  XSetRegion  will  use  the extended-length encoding as necessary, if supported by the
       server.  Use of the  extended-length  encoding  in  other  Xlib  functions  (for  example,
       XDrawPoints,  XDrawRectangles,  XDrawSegments,  XFillArcs,  XFillRectangles, XPutImage) is
       permitted but not required; an Xlib implementation may choose to  split  the  data  across
       multiple smaller requests instead.

       The  LastKnownRequestProcessed  macro  extracts the full serial number of the last request
       known by Xlib to have been processed by the X server.

       The NextRequest macro extracts the full serial number that is to  be  used  for  the  next
       request.

       The  ProtocolVersion  macro  returns  the  major  version  number  (11)  of the X protocol
       associated with the connected display.

       The ProtocolRevision macro returns the minor protocol revision number of the X server.

       The QLength macro returns the length of the event queue for the connected display.

       The RootWindow macro returns the root window.

       The ScreenCount macro returns the number of available screens.

       The ScreenOfDisplay macro returns a pointer to the screen of the specified display.

       The ServerVendor macro returns a pointer to a null-terminated string  that  provides  some
       identification of the owner of the X server implementation.

       The VendorRelease macro returns a number related to a vendor's release of the X server.

SEE ALSO

       BlackPixelOfScreen(3), ImageByteOrder(3), IsCursorKey(3), XOpenDisplay(3)
       Xlib - C Language X Interface