<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ --> <title>Graphics/X11/Xlib/Color.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span> <a name="line-2"></a><span class='hs-comment'>-- |</span> <a name="line-3"></a><span class='hs-comment'>-- Module : Graphics.X11.Xlib.Color</span> <a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Alastair Reid, 1999-2003</span> <a name="line-5"></a><span class='hs-comment'>-- License : BSD-style (see the file libraries/base/LICENSE)</span> <a name="line-6"></a><span class='hs-comment'>--</span> <a name="line-7"></a><span class='hs-comment'>-- Maintainer : libraries@haskell.org</span> <a name="line-8"></a><span class='hs-comment'>-- Stability : provisional</span> <a name="line-9"></a><span class='hs-comment'>-- Portability : portable</span> <a name="line-10"></a><span class='hs-comment'>--</span> <a name="line-11"></a><span class='hs-comment'>-- A collection of FFI declarations for interfacing with Xlib Colors.</span> <a name="line-12"></a><span class='hs-comment'>--</span> <a name="line-13"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span> <a name="line-14"></a> <a name="line-15"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>X11</span><span class='hs-varop'>.</span><span class='hs-conid'>Xlib</span><span class='hs-varop'>.</span><span class='hs-conid'>Color</span><span class='hs-layout'>(</span> <a name="line-16"></a> <a name="line-17"></a> <span class='hs-varid'>lookupColor</span><span class='hs-layout'>,</span> <a name="line-18"></a> <span class='hs-varid'>allocNamedColor</span><span class='hs-layout'>,</span> <a name="line-19"></a> <span class='hs-varid'>allocColor</span><span class='hs-layout'>,</span> <a name="line-20"></a> <span class='hs-varid'>parseColor</span><span class='hs-layout'>,</span> <a name="line-21"></a> <span class='hs-varid'>freeColors</span><span class='hs-layout'>,</span> <a name="line-22"></a> <span class='hs-varid'>storeColor</span><span class='hs-layout'>,</span> <a name="line-23"></a> <span class='hs-varid'>queryColor</span><span class='hs-layout'>,</span> <a name="line-24"></a> <span class='hs-varid'>queryColors</span><span class='hs-layout'>,</span> <a name="line-25"></a> <span class='hs-varid'>installColormap</span><span class='hs-layout'>,</span> <a name="line-26"></a> <span class='hs-varid'>uninstallColormap</span><span class='hs-layout'>,</span> <a name="line-27"></a> <span class='hs-varid'>copyColormapAndFree</span><span class='hs-layout'>,</span> <a name="line-28"></a> <span class='hs-varid'>createColormap</span><span class='hs-layout'>,</span> <a name="line-29"></a> <span class='hs-varid'>freeColormap</span><span class='hs-layout'>,</span> <a name="line-30"></a> <a name="line-31"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-32"></a> <a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>X11</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span> <a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>X11</span><span class='hs-varop'>.</span><span class='hs-conid'>Xlib</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span> <a name="line-35"></a> <a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span> <a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span> <a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span> <a name="line-39"></a> <a name="line-40"></a><span class='hs-comment'>----------------------------------------------------------------</span> <a name="line-41"></a><span class='hs-comment'>-- Color and Colormaps</span> <a name="line-42"></a><span class='hs-comment'>----------------------------------------------------------------</span> <a name="line-43"></a> <a name="line-44"></a><a name="lookupColor"></a><span class='hs-comment'>-- | interface to the X11 library function @XLookupColor()@.</span> <a name="line-45"></a><span class='hs-definition'>lookupColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Color</span><span class='hs-layout'>,</span> <span class='hs-conid'>Color</span><span class='hs-layout'>)</span> <a name="line-46"></a><span class='hs-definition'>lookupColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color_name</span> <span class='hs-keyglyph'>=</span> <a name="line-47"></a> <span class='hs-varid'>withCString</span> <span class='hs-varid'>color_name</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>c_color_name</span> <span class='hs-keyglyph'>-></span> <a name="line-48"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>exact_def_return</span> <span class='hs-keyglyph'>-></span> <a name="line-49"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>screen_def_return</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-50"></a> <span class='hs-varid'>throwIfZero</span> <span class='hs-str'>"lookupColor"</span> <span class='hs-varop'>$</span> <a name="line-51"></a> <span class='hs-varid'>xLookupColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>c_color_name</span> <a name="line-52"></a> <span class='hs-varid'>exact_def_return</span> <span class='hs-varid'>screen_def_return</span> <a name="line-53"></a> <span class='hs-varid'>exact_def</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>exact_def_return</span> <a name="line-54"></a> <span class='hs-varid'>screen_def</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>screen_def_return</span> <a name="line-55"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>exact_def</span><span class='hs-layout'>,</span> <span class='hs-varid'>screen_def</span><span class='hs-layout'>)</span> <a name="line-56"></a> <a name="line-57"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XLookupColor"</span> <a name="line-58"></a> <span class='hs-varid'>xLookupColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CString</span> <span class='hs-keyglyph'>-></span> <a name="line-59"></a> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Status</span> <a name="line-60"></a> <a name="line-61"></a><a name="allocNamedColor"></a><span class='hs-comment'>-- TODO don't throw an exception.</span> <a name="line-62"></a><span class='hs-comment'>-- | interface to the X11 library function @XAllocNamedColor()@.</span> <a name="line-63"></a><span class='hs-definition'>allocNamedColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Color</span><span class='hs-layout'>,</span> <span class='hs-conid'>Color</span><span class='hs-layout'>)</span> <a name="line-64"></a><span class='hs-definition'>allocNamedColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color_name</span> <span class='hs-keyglyph'>=</span> <a name="line-65"></a> <span class='hs-varid'>withCString</span> <span class='hs-varid'>color_name</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>c_color_name</span> <span class='hs-keyglyph'>-></span> <a name="line-66"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>exact_def_return</span> <span class='hs-keyglyph'>-></span> <a name="line-67"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>screen_def_return</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-68"></a> <span class='hs-varid'>throwIfZero</span> <span class='hs-str'>"allocNamedColor"</span> <span class='hs-varop'>$</span> <a name="line-69"></a> <span class='hs-varid'>xAllocNamedColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>c_color_name</span> <a name="line-70"></a> <span class='hs-varid'>exact_def_return</span> <span class='hs-varid'>screen_def_return</span> <a name="line-71"></a> <span class='hs-varid'>exact_def</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>exact_def_return</span> <a name="line-72"></a> <span class='hs-varid'>screen_def</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>screen_def_return</span> <a name="line-73"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>exact_def</span><span class='hs-layout'>,</span> <span class='hs-varid'>screen_def</span><span class='hs-layout'>)</span> <a name="line-74"></a> <a name="line-75"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XAllocNamedColor"</span> <a name="line-76"></a> <span class='hs-varid'>xAllocNamedColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CString</span> <span class='hs-keyglyph'>-></span> <a name="line-77"></a> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Status</span> <a name="line-78"></a> <a name="line-79"></a><a name="allocColor"></a><span class='hs-comment'>-- | interface to the X11 library function @XAllocColor()@.</span> <a name="line-80"></a><span class='hs-definition'>allocColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Color</span> <a name="line-81"></a><span class='hs-definition'>allocColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color</span> <span class='hs-keyglyph'>=</span> <a name="line-82"></a> <span class='hs-varid'>with</span> <span class='hs-varid'>color</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>color_ptr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-83"></a> <span class='hs-varid'>throwIfZero</span> <span class='hs-str'>"allocColor"</span> <span class='hs-varop'>$</span> <a name="line-84"></a> <span class='hs-varid'>xAllocColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color_ptr</span> <a name="line-85"></a> <span class='hs-varid'>peek</span> <span class='hs-varid'>color_ptr</span> <a name="line-86"></a> <a name="line-87"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XAllocColor"</span> <a name="line-88"></a> <span class='hs-varid'>xAllocColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Status</span> <a name="line-89"></a> <a name="line-90"></a><a name="parseColor"></a><span class='hs-comment'>-- | interface to the X11 library function @XParseColor()@.</span> <a name="line-91"></a><span class='hs-definition'>parseColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Color</span> <a name="line-92"></a><span class='hs-definition'>parseColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color_spec</span> <span class='hs-keyglyph'>=</span> <a name="line-93"></a> <span class='hs-varid'>withCString</span> <span class='hs-varid'>color_spec</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>spec</span> <span class='hs-keyglyph'>-></span> <a name="line-94"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>exact_def_return</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-95"></a> <span class='hs-varid'>throwIfZero</span> <span class='hs-str'>"parseColor"</span> <span class='hs-varop'>$</span> <a name="line-96"></a> <span class='hs-varid'>xParseColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>exact_def_return</span> <a name="line-97"></a> <span class='hs-varid'>peek</span> <span class='hs-varid'>exact_def_return</span> <a name="line-98"></a> <a name="line-99"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XParseColor"</span> <a name="line-100"></a> <span class='hs-varid'>xParseColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Status</span> <a name="line-101"></a> <a name="line-102"></a><span class='hs-comment'>-- ToDo: Can't express relationship between arg4 and res1 properly (or arg5, res2)</span> <a name="line-103"></a><span class='hs-comment'>-- %errfun Zero XAllocColorCells :: Display -> Colormap -> Bool -> Int -> Int -> IO (ListPixel, ListPixel) using err = XAllocColorCells(arg1,arg2,arg3,arg4_size,res1,arg5_size,res2)</span> <a name="line-104"></a> <a name="line-105"></a><span class='hs-comment'>-- ToDo: Can't express relationship between arg4 and res1 properly</span> <a name="line-106"></a><span class='hs-comment'>-- %errfun Zero XAllocColorPlanes :: Display -> Colormap -> Bool -> Int -> Int -> Int -> Int IO (ListPixel, Pixel, Pixel, Pixel) using err = XAllocColorPlanes(...)</span> <a name="line-107"></a> <a name="line-108"></a><a name="freeColors"></a><span class='hs-comment'>-- | interface to the X11 library function @XFreeColors()@.</span> <a name="line-109"></a><span class='hs-definition'>freeColors</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pixel</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pixel</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-110"></a><span class='hs-definition'>freeColors</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>pixels</span> <span class='hs-varid'>planes</span> <span class='hs-keyglyph'>=</span> <a name="line-111"></a> <span class='hs-varid'>withArray</span> <span class='hs-varid'>pixels</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>pixel_array</span> <span class='hs-keyglyph'>-></span> <a name="line-112"></a> <span class='hs-varid'>xFreeColors</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>pixel_array</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>pixels</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>planes</span> <a name="line-113"></a> <a name="line-114"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XFreeColors"</span> <a name="line-115"></a> <span class='hs-varid'>xFreeColors</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixel</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pixel</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-116"></a> <a name="line-117"></a><a name="storeColor"></a><span class='hs-comment'>-- | interface to the X11 library function @XStoreColor()@.</span> <a name="line-118"></a><span class='hs-definition'>storeColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-119"></a><span class='hs-definition'>storeColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color</span> <span class='hs-keyglyph'>=</span> <a name="line-120"></a> <span class='hs-varid'>with</span> <span class='hs-varid'>color</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>color_ptr</span> <span class='hs-keyglyph'>-></span> <a name="line-121"></a> <span class='hs-varid'>xStoreColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color_ptr</span> <a name="line-122"></a> <a name="line-123"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XStoreColor"</span> <a name="line-124"></a> <span class='hs-varid'>xStoreColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-125"></a> <a name="line-126"></a><span class='hs-comment'>-- %fun XStoreColors :: Display -> Colormap -> ListColor -> IO ()</span> <a name="line-127"></a><span class='hs-comment'>-- %code XStoreColors(arg1,arg2,arg3,arg3_size)</span> <a name="line-128"></a><span class='hs-comment'>-- %fun XStoreNamedColor :: Display -> Colormap -> String -> Pixel -> PrimaryMask -> IO ()</span> <a name="line-129"></a> <a name="line-130"></a><a name="queryColor"></a><span class='hs-comment'>-- | interface to the X11 library function @XQueryColor()@.</span> <a name="line-131"></a><span class='hs-definition'>queryColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Color</span> <a name="line-132"></a><span class='hs-definition'>queryColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color</span> <span class='hs-keyglyph'>=</span> <a name="line-133"></a> <span class='hs-varid'>with</span> <span class='hs-varid'>color</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>color_ptr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-134"></a> <span class='hs-varid'>xQueryColor</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color_ptr</span> <a name="line-135"></a> <span class='hs-varid'>peek</span> <span class='hs-varid'>color_ptr</span> <a name="line-136"></a> <a name="line-137"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XQueryColor"</span> <a name="line-138"></a> <span class='hs-varid'>xQueryColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-139"></a> <a name="line-140"></a><a name="queryColors"></a><span class='hs-comment'>-- | interface to the X11 library function @XQueryColors()@.</span> <a name="line-141"></a><span class='hs-definition'>queryColors</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Color</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Color</span><span class='hs-keyglyph'>]</span> <a name="line-142"></a><span class='hs-definition'>queryColors</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>colors</span> <span class='hs-keyglyph'>=</span> <a name="line-143"></a> <span class='hs-varid'>withArrayLen</span> <span class='hs-varid'>colors</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>ncolors</span> <span class='hs-varid'>color_array</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-144"></a> <span class='hs-varid'>xQueryColors</span> <span class='hs-varid'>display</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>color_array</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>ncolors</span><span class='hs-layout'>)</span> <a name="line-145"></a> <span class='hs-varid'>peekArray</span> <span class='hs-varid'>ncolors</span> <span class='hs-varid'>color_array</span> <a name="line-146"></a> <a name="line-147"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XQueryColors"</span> <a name="line-148"></a> <span class='hs-varid'>xQueryColors</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-149"></a> <a name="line-150"></a><span class='hs-comment'>-- | interface to the X11 library function @XInstallColormap()@.</span> <a name="line-151"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XInstallColormap"</span> <a name="line-152"></a> <span class='hs-varid'>installColormap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-153"></a> <a name="line-154"></a><span class='hs-comment'>-- | interface to the X11 library function @XUninstallColormap()@.</span> <a name="line-155"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XUninstallColormap"</span> <a name="line-156"></a> <span class='hs-varid'>uninstallColormap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-157"></a> <a name="line-158"></a><span class='hs-comment'>-- | interface to the X11 library function @XCopyColormapAndFree()@.</span> <a name="line-159"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XCopyColormapAndFree"</span> <a name="line-160"></a> <span class='hs-varid'>copyColormapAndFree</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Colormap</span> <a name="line-161"></a> <a name="line-162"></a><span class='hs-comment'>-- | interface to the X11 library function @XCreateColormap()@.</span> <a name="line-163"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XCreateColormap"</span> <a name="line-164"></a> <span class='hs-varid'>createColormap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Window</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Visual</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ColormapAlloc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Colormap</span> <a name="line-165"></a> <a name="line-166"></a><span class='hs-comment'>-- | interface to the X11 library function @XFreeColormap()@.</span> <a name="line-167"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"HsXlib.h XFreeColormap"</span> <a name="line-168"></a> <span class='hs-varid'>freeColormap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-169"></a> <a name="line-170"></a><span class='hs-comment'>----------------------------------------------------------------</span> <a name="line-171"></a><span class='hs-comment'>-- End</span> <a name="line-172"></a><span class='hs-comment'>----------------------------------------------------------------</span> </pre></body> </html>
