keyboard-events

Here's a very simple example: from Tkinter import * import tkMessageBox def quit(event): exit() root = Tk() root.bind("<Escape>", quit) #tkMessageBox.showinfo("title", "message") root.mainloop() If I run the code exactly as it is, the program will terminate when Esc is hit. Now, if I un-comment the tkMessageBox line, the binding is "lost" after closing the message box, i.e. pressing Esc won't do anything anymore. This is happening in Python 2.7. Can you please verify if this is happening also to you? And let me know about your Python version. Here is a way to "by-pass" the problem. It's a

I'm building a virtual keyboard in jQuery, using keycode events to tigger an append, but keycode combinations are throwing me for a loop. Here's an example: I want to append a questionmark only when both the SHIFT key (keycode 16) and slash key (keycode 191) are pressed together. I thought the && operator would help, but this only appends the slash: $(document).keydown(function(e) { if (e.keyCode == 16 && e.keyCode == 188 ) { $('#mydiv').append('<span>?</span>'); } }); Any suggestions or idea why && isn't working, and what might work? Thanks! Checking e.keyCode == 16 && e.keyCode == 188 won't

I am sending keyboard key press and key release events, which works for all keyboard keys. But modifier keys works only when the key associated with modifier key is sent from application, and not from real hardware. That is if I send Shift and 'a' from application, it prints 'A' (capital A, which is what is expected). But if I send 'shift' key down event from application, and enter 'a' from physical keyboard, it prints 'a' (the shift key doesn't seem to be working across different devices). The same applies for other modifier keys such as cmd, alt, and fn keys!. Is there a way to send modifier

I was asked to implement ctrl+mousewheel event for our page site in order to change image offset on user zoom in or zoom out. I found this old answer Override browsers CTRL+(WHEEL)SCROLL with javascript and I`ve tried to do the same. I downloaded the jQuery Mouse Wheel Plugin for the implementation and here is my code: var isCtrl = false; $(document).on('keydown keyup', function(e) { if (e.which === 17) { isCtrl = e.type === 'keydown' ? true : false; } }).on('mousewheel', function(e, delta) { // `delta` will be the distance that the page would have scrolled; // might be useful for increasing

Is there a way to detect when the virtual keyboard of the MS Surface is being displayed in a web page via Javascript. The virtual keyboard is covering up the active text field on a page, and I need to be able to detect this so that I can re-layout the page to work better with the remaining window area. 来源： https://stackoverflow.com/questions/29997889/detect-ms-surface-virtual-keyboard-in-javascript

I have a little console application that has an embedded v8 engine, and I would like to add a hook to register key events. This all worked before when I was using Qt and QtScript, but I am porting it all over to straight C++ in VC++ 2008. The application compiles and runs, but the hook is never called, here is the relevant code: In main() HWND hwndC = GetConsoleWindow() ; HINSTANCE hInst = (HINSTANCE)GetWindowLong( hwndC, GWL_HINSTANCE ); if (SetWindowsHookEx(WH_KEYBOARD_LL, HookProc, hInst, NULL) == 0) { printf("Failed to set hook\n"); } else { printf("Hook established\n"); } g->RunScript

I am trying to disable browser shortcuts while user tries to press some combination of keys on the swf file. Although I can achieve this in Firefox, below code does not function in IE 8. Below code is able to hook the keyboard events if focus is not on the swf file. However, what I need is hooking keyboard events when user operates on swf file. function hookKeyboardEvents(e) { alert("hooked key"); // get key code var key_code = (window.event) ? event.keyCode : e.which; // case :if it is IE event if (window.event) { if (!event.shiftKey && !event.ctrlKey && !event.altKey) { window.event