Hi,
I noticed a few issues with the code that will cause the message to not
show up:
1. You need to decorate "on_key_press" with @window.event to make sure
it can respond to key presses;
2. There is a typo in anchor_y='centre', that should be center;
3. "label1" is local to on_key_press and as such is deleted when
on_key_press ends, you need to keep a reference to the label to prevent it
from being deleted;
4. You are not calling draw() on the new label.
I have modified you code a little bit to give a working example:
import pyglet
#showing the main window and the main label
window = pyglet.window.Window(800, 600, "Hi!")
label = pyglet.text.Label('Hello world!',
font_name='Arial',
font_size=28,
x=window.width//2, y=window.height//2,
anchor_x='center', anchor_y='center')
label1 = None
#defining the color of the background(?)
@window.event
def on_draw():
window.clear()
label.draw()
if label1:
label1.draw()
#defining what happens when you press a key
@window.event
def on_key_press(symbol, modifiers):
global label1
label1 = pyglet.text.Label('A key was pressed',
font_name='Arial',
font_size=18,
x=window.width//2, y=window.height//3,
anchor_x='center', anchor_y='center')
pyglet.app.run()
Usually you would define a class to keep the variables for the window, but
I was a bit lazy and just made label1 global ;-).
Rob
On 22 February 2018 at 20:59, Sesgiog <[email protected]> wrote:
> i have this code:
>
> import pyglet
>
> #showing the main window and the main label
> window = pyglet.window.Window(800, 600, "Hi!")
> label = pyglet.text.Label('Hello world!',
> font_name='Arial',
> font_size=28,
> x=window.width//2, y=window.height//2,
> anchor_x='center', anchor_y='center')
>
> #defining the color of the background(?)
> @window.event
> def on_draw():
> window.clear()
> label.draw()
>
> #defining what happens when you press a key
> def on_key_press(symbol, modifiers):
> label1 = pyglet.text.Label('A key was pressed',
> font_name='Arial',
> font_size=18,
> x=window.width//2, y=window.height//3,
> anchor_x='center', anchor_y='centre')
>
> pyglet.app.run()
>
>
> the idea was to show a text messagge under the 'Hello world' message when
> i press a key,but it not function(excuse me for my bad english,i'm only
> 14),please,can someone help me?
> thanks!
>
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