docs/latex/wx/display.tex

   1 \section{\class{wxDisplay}}\label{wxdisplay}
   2
   3 Determines the sizes and locations of displays connected to the system.
   4
   5 \wxheading{Derived from}
   6
   7 None
   8
   9 \wxheading{Include files}
  10
  11 <wx/display.h>
  12
  13 \wxheading{See also}
  14
  15 \helpref{wxClientDisplayRect}{wxclientdisplayrect}, \helpref{wxDisplaySize}{wxdisplaysize}, \helpref{wxDisplaySizeMM}{wxdisplaysizemm}
  16
  17 \latexignore{\rtfignore{\wxheading{Members}}}
  18
  19
  20 \membersection{wxDisplay::wxDisplay}\label{wxdisplayctor}
  21
  22 \func{}{wxDisplay}{\param{unsigned }{index = 0}}
  23
  24 Constructor, setting up a wxDisplay instance with the specified display.
  25
  26 \wxheading{Parameters}
  27
  28 \docparam{index}{The index of the display to use.  This must be non-negative
  29 and lower than the value returned by \helpref{GetCount()}{wxdisplaygetcount}.}
  30
  31
  32 \membersection{wxDisplay::\destruct{wxDisplay}}\label{wxdisplaydtor}
  33
  34 \func{void}{\destruct{wxDisplay}}{\void}
  35
  36 Destructor.
  37
  38
  39 \membersection{wxDisplay::ChangeMode}\label{wxdisplaychangemode}
  40
  41 \func{bool }{ChangeMode}{\param{const wxVideoMode\& }{mode = wxDefaultVideoMode}}
  42
  43 Changes the video mode of this display to the mode specified
  44 in the mode parameter.
  45
  46 If wxDefaultVideoMode is passed in as the mode parameter,
  47 the defined behaviour is that wxDisplay will reset the video
  48 mode to the default mode used by the display.  On Windows,
  49 the behavior is normal.  However, there are differences on other
  50 platforms. On Unix variations using X11 extensions it should
  51 behave as defined, but some irregularities may occur.
  52
  53 On wxMac passing in wxDefaultVideoMode as the mode
  54 parameter does nothing.  This happens because carbon
  55 no longer has access to DMUseScreenPrefs, an undocumented
  56 function that changed the video mode to the system
  57 default by using the system's 'scrn' resource.
  58
  59
  60 \membersection{wxDisplay::GetClientArea}\label{wxdisplaygetclientarea}
  61
  62 \constfunc{wxRect }{GetClientArea}{\void}
  63
  64 Returns the client area of the display. The client area is the part of the
  65 display available for the normal (non full screen) windows, usually it is the
  66 same as \helpref{GetGeometry}{wxdisplaygetgeometry} but it could be less if
  67 there is a taskbar (or equivalent) on this display.
  68
  69 \wxheading{See also:}
  70
  71 \helpref{wxClientDisplayRect}{wxclientdisplayrect}
  72
  73
  74 \membersection{wxDisplay::GetCount}\label{wxdisplaygetcount}
  75
  76 \func{static unsigned }{GetCount}{\void}
  77
  78 Returns the number of connected displays.
  79
  80
  81 \membersection{wxDisplay::GetCurrentMode}\label{wxdisplaygetcurrentmode}
  82
  83 \constfunc{wxVideoMode }{GetCurrentMode}{\void}
  84
  85 Returns the current video mode that this display is in.
  86
  87
  88 \membersection{wxDisplay::GetDepth}\label{wxdisplaygetdepth}
  89
  90 \constfunc{int }{GetDepth}{\void}
  91
  92 Returns the bit depth of the display whose index was passed to the constructor.
  93
  94
  95 \membersection{wxDisplay::GetFromPoint}\label{wxdisplaygetfrompoint}
  96
  97 \func{static int}{GetFromPoint}{\param{const wxPoint\& }{pt}}
  98
  99 Returns the index of the display on which the given point lies.  Returns
 100 \texttt{wxNOT\_FOUND} if the point is not on any connected display.
 101
 102 \wxheading{Parameters}
 103
 104 \docparam{pt}{The point to locate.}
 105
 106
 107 \membersection{wxDisplay::GetFromWindow}\label{wxdisplaygetfromwindow}
 108
 109 \func{static int}{GetFromWindow}{\param{const wxWindow* }{win}}
 110
 111 Returns the index of the display on which the given window lies.
 112
 113 If the window is on more than one display it gets the display that overlaps the window the most.
 114
 115 Returns \texttt{wxNOT\_FOUND} if the window is not on any connected display.
 116
 117 \wxheading{Parameters}
 118
 119 \docparam{win}{The window to locate.}
 120
 121
 122 \membersection{wxDisplay::GetGeometry}\label{wxdisplaygetgeometry}
 123
 124 \constfunc{wxRect }{GetGeometry}{\void}
 125
 126 Returns the bounding rectangle of the display whose index was passed to the
 127 constructor.
 128
 129 \wxheading{See also:}
 130
 131 \helpref{GetClientArea}{wxdisplaygetclientarea}, \helpref{wxDisplaySize}{wxdisplaysize}
 132
 133
 134 \membersection{wxDisplay::GetModes}\label{wxdisplaygetmodes}
 135
 136 \constfunc{wxArrayVideoModes }{GetModes}{\param{const wxVideoMode\& }{mode = wxDefaultVideoMode}}
 137
 138 Fills and returns an array with all the video modes that
 139 are supported by this display, or video modes that are
 140 supported by this display and match the mode parameter
 141 (if mode is not wxDefaultVideoMode).
 142
 143
 144 \membersection{wxDisplay::GetName}\label{wxdisplaygetname}
 145
 146 \constfunc{wxString }{GetName}{\void}
 147
 148 Returns the display's name.  A name is not available on all platforms.
 149
 150
 151 \membersection{wxDisplay::IsPrimary}\label{wxdisplayisprimary}
 152
 153 \func{bool }{IsPrimary}{\void}
 154
 155 Returns true if the display is the primary display.  The primary display is the
 156 one whose index is 0.
 157