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标题: 如何获取整个画面和图片文件中的像素？ [打印本页]

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作者: David_Exmachina    时间: 2019-10-5 15:49
标题: 如何获取整个画面和图片文件中的像素？
bitmap类中有一个函数叫get_pixel，
它能获取位图里坐标对应的像素颜色值。
但是这个函数获得的是仅限在位图中的像素，
而我希望获得的是整个画面中某个像素的颜色。

此外，我也想要获得图片文件中某个像素的颜色。
如何可以实现这些功能呢？

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作者: 张咚咚    时间: 2019-10-5 17:53
画面的话用截图脚本截图后得到bitmap，在获取。
文件那个先加载在获取。Bitmap.new(文件路径).get_pixel

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作者: KB.Driver    时间: 2019-10-6 01:58

RUBY 代码复制

FindWindow = Win32API.new "user32.dll", "FindWindow", %w{L P}, "L"
GetDC = Win32API.new "user32.dll", "GetDC", 'L', "L"
GetPixel = Win32API.new "gdi32.dll", "GetPixel", %w{L L L}, "L"
 
TitleName = File.read("Game.ini").match(/Title=(\S+)$/)[1]
GameHwnd = FindWindow.call(0, TitleName)
GameDC = GetDC.call(GameHwnd)
 
p "TitleName=#{TitleName}"
p "GameHwnd=#{GameHwnd}"
p "GameDC=#{GameDC}"
 
def get_game_pixel(x, y)
  color_ref = GetPixel.call(GameDC, x, y)
  b = (color_ref & 0xFF0000) >> 8 * 2
  g = (color_ref & 0x00FF00) >> 8 * 1
  r =  color_ref & 0x0000FF
  color = Color.new(r,g,b)
end

FindWindow = Win32API.new "user32.dll", "FindWindow", %w{L P}, "L"


GetDC = Win32API.new "user32.dll", "GetDC", 'L', "L"


GetPixel = Win32API.new "gdi32.dll", "GetPixel", %w{L L L}, "L"


 


TitleName = File.read("Game.ini").match(/Title=(\S+)$/)[1]


GameHwnd = FindWindow.call(0, TitleName)


GameDC = GetDC.call(GameHwnd)


 


p "TitleName=#{TitleName}"


p "GameHwnd=#{GameHwnd}"


p "GameDC=#{GameDC}"


 


def get_game_pixel(x, y)


  color_ref = GetPixel.call(GameDC, x, y)


  b = (color_ref & 0xFF0000) >> 8 * 2


  g = (color_ref & 0x00FF00) >> 8 * 1


  r =  color_ref & 0x0000FF


  color = Color.new(r,g,b)


end

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作者: David_Exmachina    时间: 2019-10-6 12:26

KB.Driver 发表于 2019-10-6 01:58
FindWindow = Win32API.new "user32.dll", "FindWindow", %w{L P}, "L"
GetDC = Win32API.new "user32.dl ...

太给力了，真是太感谢了。(*^▽^*)

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