2013年1月31日

Mac 一定要學的螢幕抓圖技巧,Screenshot cheat sheet for Mac OS X

使用 Mac OS X 快速擷取螢幕畫面

經常使用 MacBook 做簡報、寫網誌,會需要抓取螢幕畫面;但是要怎麼擷取才漂亮呢?

* Windows 使用者可以安裝「greenshot」,這是免費好用的抓圖工具。

Mac OS X 內建的 Screen Shot 熱鍵超好用,不需要安裝其他軟體,就能滿足各種快速抓圖的需求。
  • Command + Shift + 3
    抓取整個螢幕畫面並儲存到桌面
  • Command + Shift + 4
    選擇一個畫面區域後儲存到桌面
  • Command + Shift + 4、放開、再按空白鍵
    選取一個視窗後儲存到桌面
  • Command + Control + Shift + 3
    Command + Control + Shift + 4
    Command + Control + Shift + 4、放開、再按空白鍵
    功能同上;但多一個 Control 鍵,會儲存到剪貼簿而不直接存檔

如果要抓取整個視窗畫面,多按一個空白鍵切換成視窗選取模式,這樣就不會抓到視窗以外的內容,而且抓圖後還會自動將背景設為透明化、並加上陰影,效果真的非常棒!

對於進階使用者,想要在程式或 Shell Script 中自動抓圖,則可以搭配 Mac OS X 內建的「screencapture」指令:

# 直接抓取整個畫面存檔
screencapture ~/screenshot.png

# 抓取單一視窗畫面
screencapture -w ~/screenshot.png

# 抓取單一視窗畫面、背景不要加陰影
screencapture -ow ~/screenshot.png

其他參數可以參考:

  -c         force screen capture to go to the clipboard
  -C         capture the cursor as well as the screen. only in non-interactive modes
  -d         display errors to the user graphically
  -i         capture screen interactively, by selection or window
               control key - causes screen shot to go to clipboard
               space key   - toggle between mouse selection and
                             window selection modes
               escape key  - cancels interactive screen shot
  -m         only capture the main monitor, undefined if -i is set
  -M         screen capture output will go to a new Mail message
  -o         in window capture mode, do not capture the shadow of the window
  -P         screen capture output will open in Preview
  -s         only allow mouse selection mode
  -S         in window capture mode, capture the screen not the window
  -t<format> image format to create, default is png (other options include pdf, jpg, tiff and other formats)
  -T<seconds> Take the picture after a delay of <seconds>, default is 5
  -w         only allow window selection mode
  -W         start interaction in window selection mode
  -x         do not play sounds
  -a         do not include windows attached to selected windows
  -r         do not add dpi meta data to image
  -l<windowid> capture this windowsid
  -R<x,y,w,h> capture screen rect
  files   where to save the screen capture, 1 file per screen

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lyhcode by lyhcode
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