No window resize in LWJGL?

OpenGL Development
#1

What haven’t I seen any LWJGL demo app with a resize-window function?..

#2

For native window displays, you would need to recreate the window, the context stays the same so no need to re-init your code/textures/display lists and all that jazz

For AWT, you can use the resize icon and add a WindowListener and use glViewport(position.x, position.y, dimension.x, dimension.y); to change the renderable area of the canvas.

Note that the position isn’t the position of the window in terms of the desktop, its mostly 0,0 which means bottom left.

DP

#3

why would you need it for a game, no really

#4

just shove AWTGLCanvas in a JFrame if you really need window resizing…

#5

But resizing the AWTGLCanvas is simple as you only have to resize the viewport if you not create a canvas that have the size of a fullscreen window. Else dump the old and create a new one. Of course they have to be shared ones!

#6

I expect we will make the window resizable in LWJGL1.1 anyway.

Cas :slight_smile:

#7

heh, did you just volunteer ?

#8

Bah no, I don’t need that feature :wink: I’m sticking to writing games with it now!!

Cas :slight_smile:

#9

Hi all, thanks for the answers, but unfortunatelly i dont understand any… im way too novice for that stuff… does anyone have a pre-mayde code for resizing?

Matzon : I Need it cuz my screen size (14" laptop) is not the same as my friends desktop, and I would like to offer
an options to view it all over the screen, but not in fullscreen mode…

#10

When we talk about resizing the screen, we’re talking about live resize - drag with mouse stuff.
If you need to create a window in another size, just pass another DiplayMode to the create method

#11

Display.getDisplayMode() gets you the current display mode (including size). If you havn’t created a display yet, this will be the size of the desktop. So just use the current display mode and create a windowed display with it.

#12

Im talking about an option for real-time resizing… how can that be preformed? no code examples available anywhere? (btw - thanks for the tips on the displaysize)

#13

real time resizing with mouse isn’t possible.
The only resizing you can do is destroying the display and create a new one with the requested size

#14

How can i retrieve the max width/height of my screen ?

#15

You can use getAvailableDisplayModes() to fetch every supported mode, or use the AWTToolkit to get the current screen measures.

#16

[quote]Display.getDisplayMode() gets you the current display mode (including size). If you havn’t created a display yet
[/quote]

#17

Ok, Thanks, I’ll try it.

#18

of course it is possible, although this post is very old, setting the viewport does change the dimensions but it does this only every second time.
this is what i did:


public static void onResize()
	{
		GL11.glViewport(0, 0, Display.getWidth(), Display.getHeight());
	}
...
if(Display.wasResized())
				onResize();
#19

… way to revive this thread from the dead. We don’t need zombies roaming around!! :stuck_out_tongue:

#20

i found this thread on google because of the problem ‘does this only every second time’ and i couldnt find any other threads about that specific problem xD.