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annotate ruby/rbdc/examples/win32screenres.rb @ 30:baf087cf5971

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- fixed two ref counting problems - minor improvements
author Tassilo Philipp
date Fri, 10 Apr 2020 20:35:19 +0200
parents 5e159be89d73
children
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1 #//////////////////////////////////////////////////////////////////////
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2 #
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3 # win32screeninfo.rb
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5e159be89d73 - ruby and sh binding updates for dc r0.9
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4 # Copyright 2015 Tassilo Philipp
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5 #
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6 # Dyncall sample loading user32.dll on windows and displaying a
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7 # native windows message box by calling MessageBoxA(...).
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8 #
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9 #///////////////////////////////////////////////////////////////////////
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10
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11 require 'rbdc'
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13 l = Dyncall::ExtLib.new
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14 if l.load('user32') != nil
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15 puts 'width: ' + l.call(:GetSystemMetrics, 'i)i', 0).to_s
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16 puts 'height: ' + l.call(:GetSystemMetrics, 'i)i', 1).to_s
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17 puts 'number of monitors: ' + l.call(:GetSystemMetrics, 'i)i', 80).to_s
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18 end