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How to detect if multiple keys are pressed at once using JavaScript?

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问题 I\'m trying to develop a JavaScript game engine and I\'ve came across this problem: When I press SPACE the character jumps. When I press &rightarrow; the character moves right. The problem is that when I\'m pressing right and then press space, the character jumps and then stops moving. I use the keydown function to get the key pressed. How can I check if there are multiple keys pressed at once? 回答1: Note: keyCode is now deprecated. Multiple keystroke detection is easy if you understand the

Python simulate keydown

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After searching for several hours i´m wondering if its possible to simulate a keydown press on the keyboard. For example I want my program to hold the x key down for five seconds so when I run it in notepad it would look like to see something like this: xxxxxxxxxxxxx . I tried around with different pieces of code on the internet, the best thing I could find so far is this: import ctypes import time user32 = ctypes.windll.user32 inputhex = raw_input("Please enter your desired key's code (HEX): ") keycode = int(inputhex, 16) time.sleep(1) #VOID keybd_event(BYTE bVk, BYTE bScan, DWORD dwFlags,

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