Not logged in.  Login/Logout/Register | List snippets | | Create snippet | Upload image | Upload data

15
LINES

< > BotCompany Repo | #1004381 // isHeadless - "headless" graphics environment (no display)?

JavaX fragment (include)

1  
static Boolean isHeadless_cache;
2  
3  
static bool isHeadless() {
4  
  if (isHeadless_cache != null) ret isHeadless_cache;
5  
  if (isAndroid()) ret isHeadless_cache = true;
6  
  if (GraphicsEnvironment.isHeadless()) ret isHeadless_cache = true;
7  
  
8  
  // Also check if AWT actually works.
9  
  // If DISPLAY variable is set but no X server up, this will notice.
10  
  
11  
  try {
12  
    SwingUtilities.isEventDispatchThread();
13  
    ret isHeadless_cache = false;
14  
  } catch (Throwable e) { ret isHeadless_cache = true; }
15  
}

download  show line numbers  debug dex  old transpilations   

Travelled to 15 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, ddnzoavkxhuk, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt, whxojlpjdney

No comments. add comment

Snippet ID: #1004381
Snippet name: isHeadless - "headless" graphics environment (no display)?
Eternal ID of this version: #1004381/3
Text MD5: 62eea8c9f87beb0836258e0653c95257
Author: stefan
Category: javax
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2018-05-04 17:53:11
Source code size: 505 bytes / 15 lines
Pitched / IR pitched: No / No
Views / Downloads: 537 / 722
Version history: 2 change(s)
Referenced in: [show references]