DPI detection failed, fallback to 96 dpi

cameyo

With processing 3.3 i got the following message when run a sketch from an external editor (notepad++ or VS Code):
DPI detection failed, fallback to 96 dpi.
Then, the sketch run normally.
Can anyone explain me what's going on ?
Thanks.

contenidoneto

I have the same problem :( (Sublime Text and Atom) and the next text: Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native com.sun.jna.platform.win32.Shell32.(Shell32.java:32)

cameyo

I have found this within the processing source code:
WindowsPlatform.java

  public static int detectSystemDPI() {
    try {
      ExtUser32.INSTANCE.SetProcessDpiAwareness(ExtUser32.DPI_AWARENESS_SYSTEM_AWARE);
    } catch (Throwable e) {
      // Ignore error
    }
    try {
      ExtUser32.INSTANCE.SetThreadDpiAwarenessContext(ExtUser32.DPI_AWARENESS_CONTEXT_SYSTEM_AWARE);
    } catch (Throwable e) {
      // Ignore error (call valid only on Windows 10)
    }
    try {
      return ExtUser32.INSTANCE.GetDpiForSystem();
    } catch (Throwable e) {
      // DPI detection failed, fall back with default
      System.out.println("DPI detection failed, fallback to 96 dpi");
      return -1;
    }
  }

jeremydouglass

@cameyo -- did you report this as an issue?

• https://github.com/processing/processing/issues

cameyo

@jeremydouglass: no. yes. I will do this as soon as possible. Done :-)

jeremydouglass

Thank you!

https://github.com/processing/processing/issues/5067