Python

PyQt is thread-safe to the same extent that Qt is thread-safe. The Qt docs will tell you which parts of their API are guaranteed to be so, and under what circumstances.

Cross-thread signals are thread-safe, so calling the updatePB method in your example is okay. Your ConnDisconn method is not thread-safe, but that has got nothing to do with PyQt or Qt – it’s just a consequence of how you wrote it. The serialEnabled attribute could be read/written by two threads simultaneously, so the behaviour is strictly undefined. A thread-safe way of … Read more

Why does PyQt crashes without information? (exit code 0xC0000409)

PyQt is thread-safe to the same extent that Qt is thread-safe. The Qt docs will tell you which parts of their API are guaranteed to be so, and under what circumstances. Cross-thread signals are thread-safe, so calling the updatePB method in your example is okay. Your ConnDisconn method is not thread-safe, but that has got nothing to do with … Read more

How do I maximize the display screen in PyGame?

To become fullscreen at native resolution, do To make the window resizeable, add the pygame.RESIZABLE parameter when seting the mode. You can set the mode of the screen surface multiple times but you might have to do pygame.display.quit() followed by pygame.display.init() You should also check the pygame documentation here http://www.pygame.org/docs/ref/display.html#pygame.display.set_mode

Function to close the window in Tkinter

Add parentheses after destroy to call the method. When you use command=self.root.destroy you pass the method to Tkinter.Button without the parentheses because you want Tkinter.Button to store the method for future calling, not to call it immediately when the button is created. But when you define the quit method, you need to call self.root.destroy() in … Read more

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