hidpi | Serve high resolution graphics to high density | Graphics library

The below code is supposed to generate an Enhanced Windows Metafile (EMF) with a size 200mm by 100mm and a centered rectangle of 180mm by 80mm. When run from a Windows Forms application, it works. When run from a console application, the size (or frame) is incorrect: it's almost exactly double the width and height.

What is different between a console app and a Windows Form app that could be responsible for the different behavior? What change is needed to correct the EMF size/frame_

Both applications run:

• .NET Core 3.1 (I tried .NET 6 and .NET Framework with the same result)
• System.Drawing.Common 4.5.1 (I tried newer version with the same result)

I've also tried to use millimeter as the page and frame unit. It had the same effect. Additionally, the size was off by an additional 5%. In all cases I've inserted the EMF file into Microsoft Word and taken the size from there.

As I've experienced that Metafiles have a strange dependence on the used display, it might be relevant that I'm using a HiDPI display at a scale of 200%.

I use JavaFX with Java 8 and i set this properties before launching my app
System.setProperty("prism.forceGPU","true");
System.setProperty("prism.order","d3d,sw");
The verbose mode for prism gives me this :

I am designing a GUI with Java Swing and AWT (Java 8) and am struggling with the icons I use.

I load a large PNG image and scale it to 18x18px and then use it in a button or label. It works well in all resolutions when the operating system does not zoom in.

However, with the advent of large screen resolutions (hidpi), it is common practice to use operating system settings to zoom in on user interface controls, including buttons and such things in Java applications. For example, on Windows I use a 150% or 200% scaling of user elements with my 4K resolution to ensure the user interface is still usable. I imagine many users will do so as well.

When that is the case, however, the icons are merely increased in size after already scaling them down to 18x18px. That is, I first scale them down and then the operating system tries to scale them up again with the little information that is still left in the image.

Is there any way to design image icons in Java that are based on a higher resolution when the zooming/scaling capabilities of the operating system are used in order to avoid them appearing blurred?

Here is a working example:

• wxWidgets: 3.1.5 (also tried the latest source from github)
• wxWidgets: built using gcc-11.2 under msys2 (ucrt64)
• Windows 10 Application: build using gcc-11.2 under msys2 (ucrt64)
• Monitor native resoultion: 3840 x 2160
• IDE: Eclipse 2021-09

If I build my application and link against a resource file that is not using a HiDPI aware manifest then everything works correctly but the fonts are, as one would expect, pixelated. However, once I link with a HiDPI aware resource file then the controls are not resized proportionally with their associated text. Please see the following screenshots.

The image above shows the test wxFrame being rendered without a HiDPI aware resource file. The monitor scaling was 200%. As you can see, the wxFrame has rendered correctly.

The image above shows the test wxFrame being rendered without a HiDPI aware resource file. The monitor scaling was 350%. As you can see, (aside from the blurry text) the wxFrame has rendered correctly..

The image above shows the test wxFrame being rendered with a HiDPI aware resource file. The monitor scaling was 200%. As you can see, the wxFrame has rendered badly. This wxFrame renders correctly at 100% scale.

Here is a minimal fully functional code sample to demonstrate my problem.

I made a shell script, which I wanted to run two commands at the same time, but apparently, when I run it, it says:

I have built my app with JavaFX 11 and now I need to distribute it. I have chosen to distribute it in two ways: cross-platform fat-jar (I know, I know, it is discouraged, but that is not the point) and platform specific image created with jlink.

I am building on Linux Mint 20.1. I am using Maven and creating runtime image with javafx-maven-plugin. I have JDKs for both platforms on my Linux machine and pointed to the corresponding jmods folder in pom.xml.

The built fat-jar works on both Linux and Windows where both have installed the latest Java SDK (11.0.12).

The image for Linux also works without problems.

However, the image for Windows does not run and the output of -Dprism.verbose=true is this:

I want to be able to select the features from a Vector tile layer like in this example - https://openlayers.org/en/latest/examples/vector-tile-selection.html (edit: their tile layer seems to be broken, but it worked fine few days ago). I have a tile layer on Geoserver in the EPSG:3765. Here is my OpenLayers configuration:

Currently, I call SetProcessDPIAware() but the docs recommend using a manifest:

We recommended that you specify the default process DPI awareness via a manifest setting. While specifying the default via API is supported, it is not recommended.

Additionally, I find that on some machines calling SetProcessDPIAware() causes the window title to disappear and reappear which causes the window to move down. I'm trying to have a persistent window position and this flicker is making my window slide down the screen after repeated runs.

How do I set dpi settings in the manifest in Visual Studio? How would I make premake generate a vcxproj with that setting?

How to run correctly with a high DPI setting? describes some of the answer I'm looking for, but the menus are different for C#.

How can I increase thread stack size on TomCat 8.5.51 server? I am using TomCat for Apache fop reports.

I tried java -Xss1G but it returns back the help information. Do I need to restart TomCat server (or the machine)?