1AllPlanes(3X11) XLIB FUNCTIONS AllPlanes(3X11)
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6 AllPlanes, BlackPixel, WhitePixel, ConnectionNumber, DefaultColormap,
7 DefaultDepth, XListDepths, DefaultGC, DefaultRootWindow, Default‐
8 ScreenOfDisplay, DefaultScreen, DefaultVisual, DisplayCells, Display‐
9 Planes, DisplayString, XMaxRequestSize, XExtendedMaxRequestSize, Last‐
10 KnownRequestProcessed, NextRequest, ProtocolVersion, ProtocolRevision,
11 QLength, RootWindow, ScreenCount, ScreenOfDisplay, ServerVendor, Ven‐
12 dorRelease - Display macros and functions
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15 unsigned long AllPlanes;
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17 unsigned long BlackPixel(Display *display, int screen_number);
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19 unsigned long WhitePixel(Display *display, int screen_number);
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21 int ConnectionNumber(Display *display);
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23 Colormap DefaultColormap(Display *display, int screen_number);
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25 int DefaultDepth(Display *display, int screen_number);
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27 int *XListDepths(Display *display, int screen_number, int
28 count_return);
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30 GC DefaultGC(Display *display, int screen_number);
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32 Window DefaultRootWindow(Display *display);
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34 Screen *DefaultScreenOfDisplay(Display *display);
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36 int DefaultScreen(Display *display);
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38 Visual *DefaultVisual(Display *display, int screen_number);
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40 int DisplayCells(Display *display, int screen_number);
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42 int DisplayPlanes(Display *display, int screen_number);
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44 char *DisplayString(Display *display);
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46 long XMaxRequestSize(Display *display)
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48 long XExtendedMaxRequestSize(Display *display)
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50 unsigned long LastKnownRequestProcessed(Display *display);
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52 unsigned long NextRequest(Display *display);
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54 int ProtocolVersion(Display *display);
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56 int ProtocolRevision(Display *display);
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58 int QLength(Display *display);
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60 Window RootWindow(Display *display, int screen_number);
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62 int ScreenCount(Display *display);
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64 Screen *ScreenOfDisplay(Display *display, int screen_number);
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66 char *ServerVendor(Display *display)
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68 int VendorRelease(Display *display)
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71 display Specifies the connection to the X server.
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73 screen_number
74 Specifies the appropriate screen number on the host server.
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76 count_return
77 Returns the number of depths.
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80 The AllPlanes macro returns a value with all bits set to 1 suitable for
81 use in a plane argument to a procedure.
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83 The BlackPixel macro returns the black pixel value for the specified
84 screen.
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86 The WhitePixel macro returns the white pixel value for the specified
87 screen.
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89 The ConnectionNumber macro returns a connection number for the speci‐
90 fied display.
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92 The DefaultColormap macro returns the default colormap ID for alloca‐
93 tion on the specified screen.
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95 The DefaultDepth macro returns the depth (number of planes) of the
96 default root window for the specified screen.
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98 The XListDepths function returns the array of depths that are available
99 on the specified screen. If the specified screen_number is valid and
100 sufficient memory for the array can be allocated, XListDepths sets
101 count_return to the number of available depths. Otherwise, it does not
102 set count_return and returns NULL. To release the memory allocated for
103 the array of depths, use XFree.
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105 The DefaultGC macro returns the default GC for the root window of the
106 specified screen.
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108 The DefaultRootWindow macro returns the root window for the default
109 screen.
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111 The DefaultScreenOfDisplay macro returns the default screen of the
112 specified display.
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114 The DefaultScreen macro returns the default screen number referenced in
115 the XOpenDisplay routine.
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117 The DefaultVisual macro returns the default visual type for the speci‐
118 fied screen.
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120 The DisplayCells macro returns the number of entries in the default
121 colormap.
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123 The DisplayPlanes macro returns the depth of the root window of the
124 specified screen.
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126 The DisplayString macro returns the string that was passed to XOpenDis‐
127 play when the current display was opened.
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129 The XMaxRequestSize function returns the maximum request size (in
130 4-byte units) supported by the server without using an extended-length
131 protocol encoding. Single protocol requests to the server can be no
132 larger than this size unless an extended-length protocol encoding is
133 supported by the server. The protocol guarantees the size to be no
134 smaller than 4096 units (16384 bytes). Xlib automatically breaks data
135 up into multiple protocol requests as necessary for the following func‐
136 tions: XDrawPoints, XDrawRectangles, XDrawSegments, XFillArcs, XFill‐
137 Rectangles, and XPutImage.
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139 The XExtendedMaxRequestSize function returns zero if the specified dis‐
140 play does not support an extended-length protocol encoding; otherwise,
141 it returns the maximum request size (in 4-byte units) supported by the
142 server using the extended-length encoding. The Xlib functions XDraw‐
143 Lines, XDrawArcs, XFillPolygon, XChangeProperty, XSetClipRectangles,
144 and XSetRegion will use the extended-length encoding as necessary, if
145 supported by the server. Use of the extended-length encoding in other
146 Xlib functions (for example, XDrawPoints, XDrawRectangles, XDrawSeg‐
147 ments, XFillArcs, XFillRectangles, XPutImage) is permitted but not
148 required; an Xlib implementation may choose to split the data across
149 multiple smaller requests instead.
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151 The LastKnownRequestProcessed macro extracts the full serial number of
152 the last request known by Xlib to have been processed by the X server.
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154 The NextRequest macro extracts the full serial number that is to be
155 used for the next request.
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157 The ProtocolVersion macro returns the major version number (11) of the
158 X protocol associated with the connected display.
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160 The ProtocolRevision macro returns the minor protocol revision number
161 of the X server.
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163 The QLength macro returns the length of the event queue for the con‐
164 nected display.
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166 The RootWindow macro returns the root window.
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168 The ScreenCount macro returns the number of available screens.
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170 The ScreenOfDisplay macro returns a pointer to the screen of the speci‐
171 fied display.
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173 The ServerVendor macro returns a pointer to a null-terminated string
174 that provides some identification of the owner of the X server imple‐
175 mentation.
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177 The VendorRelease macro returns a number related to a vendor's release
178 of the X server.
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181 BlackPixelOfScreen(3X11), ImageByteOrder(3X11), IsCursorKey(3X11),
182 XOpenDisplay(3X11)
183 Xlib - C Language X Interface
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187X Version 11 libX11 1.0.3 AllPlanes(3X11)