I’m using surface.setLocation to position my windows. With the arguments passed into my two windows they should be at the same X and one height difference in the Y. The Y seems ok but the X is off by about 10 or so pixels. both have same height and width and are using (displayWidth / 2 - width) as …

Hey There! Background code, or a small example to showcase the problem would be great !

void setup(){ size(300, 200); PApplet.runSketch(new String[] {"window"}, new SecondWindow()); surface.setResizable(true); surface.setSize(300, 200); surface.setLocation(displayWidth / 2 - width, displayHeight / 2 - height); } void draw(){ background(100, 45, 45); …

Hey There! I am not expert on this myself here, but placing the setSize in the main draw() seems to fix the issue all then you need to is add it’s location. It seems very bizarre because if you do setLocation() in the main draw the window doesn’t grow in size ( it’s not the size specified ) so I wo…

Using set size every draw is not efficient. The reasons set location is in the draw function is because on the second Applet the window hasn’t been created and can’t be set in the settings.

This is still a problem in 2023. The following code leaves a small border to the left of the window. surface.setLocation(0, 0);

The following code worked for me using P4.2 on Mac osx. The two windows arae aligned vertically and no need to set the size in draw (which is not recommended) void setup() { size(300, 200); surface.setResizable(true); surface.setLocation(displayWidth / 2 - width, displayHeight / 2 - height); …

That code won’t reveal the bug, unless your eyes can tell the difference between a 10 pixel (approx) border to the left! Try locating the window at (0, 0).

Sorry about that I was answering the original question and did not read your post of a day ago regarding location [0,0] I have modified my code to make use of location [0,0] as shown below and added an ellipse to help check the sketch borders. Here is a screen grab that shows the windows horizontal…

Hello @quark , This is your code on W10 Processing 4.5.2: [image] My desktop background is orange. This may very well depend on the OS. Is it still the same output for you now with Processing 4.5.2? Related: How do I create a fullscreen window with title bar on my second monitor? :)

[image] glv: Is it still the same output for you now with Processing 4.5.2? Just tested it with 4.5.1 on Osx 15.7.4 (latest) and I got the same as I did 3 years ago :grin: I suspect it is either something to do with Windows 10 or how Processing interacts with Windows 10

Using surface.setLocation does not do same thing every time

Processing Coding Questions

glv April 14, 2026, 7:23pm 12

I did some further exploration here: Native window access and inset handling in Processing JAVA2D and P2D

:)

Topic		Replies	Views
Possible to have size smaller than full screen positioned top left? Processing	4	323	June 15, 2018
How make the display window no overlap the text editor window? Coding Questions	1	229	August 22, 2021
Processing's windows overlap Windows's toolbar - avoidable? Coding Questions	3	697	November 10, 2018
Get location of a PApplet window Coding Questions	11	1269	March 4, 2021
getLocation() of the sketch Coding Questions	5	1310	November 21, 2018

Using surface.setLocation does not do same thing every time

Related topics