CODEWITHSUNDEEP
pythonlinuxtransparencypygame
Amnite
Amnite

Reputation: 221

Transparent Window in Pygame or Python

Im trying to make a transparent window for a splash screen for my game. The image has transparency but I cant make the window transparent(like see screen, desktop, etc.. behind it) All I've found is a no-go with pygame. Is there any external libraries that I could pull from to make this possible? BTW. This is entirely a Linux project. So os specific are ok too.

#Splash Screen
screen = pygame.display.set_mode((680,300), NOFRAME)
splashbg = pygame.image.load("Images/SplashBG.png")
font = pygame.font.Font(None, 36)

pygame.mixer.music.load("OriginalEnd.mp3")
pygame.mixer.music.play(-1)

screen.blit(splashbg,(0,0))
loadingtext = font.render("Loading...", 1, (255,255,255))
screen.blit(loadingtext, (200,250))
pygame.display.flip()
pygame.time.delay(4000)

Upvotes: 3

Views: 3832

Answers (2)

Samuel Wilder
Samuel Wilder

Reputation: 28

For a cross-platform solution, you can use the Raylib-Python-CFFI library.

Raylib features 2D, 3D, font-drawing, and much more than can be drawn on a transparent window:

Cross platform transparent window

Source code from above example:

from raylib.dynamic import raylib as rl, ffi

rl.SetConfigFlags(rl.FLAG_WINDOW_TRANSPARENT | rl.FLAG_WINDOW_RESIZABLE)
rl.InitWindow(800, 600, b'Transparency Test')


CLEAR = [0] * 4
GREEN = [140, 189, 72, 255]

font_size = 60
camera = ffi.new("struct Camera3D *", [[18.0, 16.0, 18.0], [0.0, 0.0, 0.0], [0.0, 1.0, 0.0], 45.0, 0])

rl.SetCameraMode(camera[0], rl.CAMERA_ORBITAL)

while not rl.WindowShouldClose():
    rl.UpdateCamera(camera)
    rl.BeginDrawing()
    rl.ClearBackground(CLEAR)
    rl.BeginMode3D(camera[0])
    rl.DrawGrid(20, 1)
    rl.DrawCube([0, 0, 0], 2, 2, 2, GREEN)
    rl.EndMode3D()
    rl.DrawText(b'Hello World', 64, 64, font_size, GREEN)
    rl.EndDrawing()

Upvotes: 1

Zack
Zack

Reputation: 4385

You could always ghetto version it with pretend transparency. It's not an ideal solution by any means, but it may work..

Before you launch your screen, use PIL to take a snapshot of the desktop, blit that first, and then draw your transparent image over it. That way it'll at least give the illusion of transparency.

Something kind of like: 

import ImageGrab, Image 

im = Imagegrab.grab()
im.save('faux_trans.png','png')

for_trans = pygame.image.load('faux_trans.png').convert()

splash = pygame.image.load.... 

screen.blit(for_trans, (0,0))

# and so on.

Like I said, not the greatest solution, but if you launch your game NOFRAME, or FULLSCREEN, you may be able to get away with it! :)

Upvotes: 4

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