1BlackPixelOfScreen(3)           XLIB FUNCTIONS           BlackPixelOfScreen(3)
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NAME

6       BlackPixelOfScreen,   WhitePixelOfScreen,   CellsOfScreen,  DefaultCol‐
7       ormapOfScreen,  DefaultDepthOfScreen,  DefaultGCOfScreen,  DefaultVisu‐
8       alOfScreen, DoesBackingStore, DoesSaveUnders, DisplayOfScreen, XScreen‐
9       NumberOfScreen,  EventMaskOfScreen,  HeightOfScreen,  HeightMMOfScreen,
10       MaxCmapsOfScreen, MinCmapsOfScreen, PlanesOfScreen, RootWindowOfScreen,
11       WidthOfScreen,  WidthMMOfScreen  -  screen  information  functions  and
12       macros
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SYNTAX

15       unsigned long BlackPixelOfScreen(Screen *screen);
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17       unsigned long WhitePixelOfScreen(Screen *screen);
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19       int CellsOfScreen(Screen *screen);
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21       Colormap DefaultColormapOfScreen(Screen *screen);
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23       int DefaultDepthOfScreen(Screen *screen);
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25       GC DefaultGCOfScreen(Screen *screen);
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27       Visual *DefaultVisualOfScreen(Screen *screen);
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29       int DoesBackingStore(Screen *screen);
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31       Bool DoesSaveUnders(Screen *screen);
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33       Display *DisplayOfScreen(Screen *screen);
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35       int XScreenNumberOfScreen(Screen *screen);
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37       long EventMaskOfScreen(Screen *screen);
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39       int HeightOfScreen(Screen *screen);
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41       int HeightMMOfScreen(Screen *screen);
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43       int MaxCmapsOfScreen(Screen *screen);
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45       int MinCmapsOfScreen(Screen *screen);
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47       int PlanesOfScreen(Screen *screen);
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49       Window RootWindowOfScreen(Screen *screen);
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51       int WidthOfScreen(Screen *screen);
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53       int WidthMMOfScreen(Screen *screen);
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ARGUMENTS

56       screen    Specifies the appropriate Screen structure.
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DESCRIPTION

59       The BlackPixelOfScreen macro returns the black pixel value of the spec‐
60       ified screen.
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62       The WhitePixelOfScreen macro returns the white pixel value of the spec‐
63       ified screen.
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65       The  CellsOfScreen  macro  returns  the number of colormap cells in the
66       default colormap of the specified screen.
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68       The DefaultColormapOfScreen macro returns the default colormap  of  the
69       specified screen.
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71       The  DefaultDepthOfScreen  macro  returns the default depth of the root
72       window of the specified screen.
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74       The DefaultGCOfScreen macro returns the default  GC  of  the  specified
75       screen, which has the same depth as the root window of the screen.
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77       The DefaultVisualOfScreen macro returns the default visual of the spec‐
78       ified screen.
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80       The DoesBackingStore macro returns WhenMapped,  NotUseful,  or  Always,
81       which indicate whether the screen supports backing stores.
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83       The DoesSaveUnders macro returns a Boolean value indicating whether the
84       screen supports save unders.
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86       The DisplayOfScreen macro returns the display of the specified screen.
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88       The XScreenNumberOfScreen function returns the screen index  number  of
89       the specified screen.
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91       The  EventMaskOfScreen  macro  returns  the root event mask of the root
92       window for the specified screen at connection setup.
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94       The HeightOfScreen macro returns the height of the specified screen.
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96       The HeightMMOfScreen macro returns the height of the  specified  screen
97       in millimeters.
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99       The MaxCmapsOfScreen macro returns the maximum number of installed col‐
100       ormaps supported by the specified screen.
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102       The MinCmapsOfScreen macro returns the minimum number of installed col‐
103       ormaps supported by the specified screen.
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105       The  PlanesOfScreen macro returns the number of planes in the root win‐
106       dow of the specified screen.
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108       The RootWindowOfScreen macro returns the root window of  the  specified
109       screen.
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111       The WidthOfScreen macro returns the width of the specified screen.
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113       The  WidthMMOfScreen macro returns the width of the specified screen in
114       millimeters.
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SEE ALSO

117       AllPlanes(3), ImageByteOrder(3), IsCursorKey(3)
118       Xlib - C Language X Interface
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122X Version 11                     libX11 1.6.9            BlackPixelOfScreen(3)
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