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How are virtual functions and vtable implemented?
...ect(*(void **)x,8,PROT_READ|PROT_WRITE|PROT_EXEC);
// Or VirtualProtect on win32; this part's very OS-specific
(*(int (***)(A *)x)[0] = f3;
// Now C::f1() returns 0 (remember we made x into a C above)
// so x->f1() and z->f1() both return 0
The latter is rather likely to make virus-checkers ...
Xcode without Storyboard and ARC
...on didFinishLaunchingWithOptions: (NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
TestViewController *test = [[TestViewController alloc] initWithNibName:@"TestVi...
Easiest way to open a download window without navigating away from the page
...
This javascript is nice that it doesn't open a new window or tab.
window.location.assign(url);
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How to detect idle time in JavaScript elegantly?
...idleTime = idleTime + 1;
if (idleTime > 19) { // 20 minutes
window.location.reload();
}
}
</script>
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Invoking JavaScript code in an iframe from the parent page
...o call is targetFunction():
document.getElementById('targetFrame').contentWindow.targetFunction();
You can also access the frame using window.frames instead of document.getElementById.
// this option does not work in most of latest versions of chrome and Firefox
window.frames[0].frameElement.con...
Android Studio: Where is the Compiler Error Output Window?
When I 'Run' my project in Android Studio, in the 'Messages' window, I get:
15 Answers
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Seeing the console's output in Visual Studio 2010?
...em is, each time I run it, I cannot see the program's output in the output window.
10 Answers
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$(window).scrollTop() vs. $(document).scrollTop()
...going to have the same effect.
However, as pointed out in the comments: $(window).scrollTop() is supported by more web browsers than $('html').scrollTop().
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How to increase the vertical split window size in Vim
...t the Vim viewport vertically. :30vs splits the viewport, making the new window 30 characters wide. Once this 30 char window is created, how would one change it's size to 31 or 29?
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How to make the window full screen with Javascript (stretching all over the screen)
...t to full screen in JavaScript:
<script type="text/javascript">
window.onload = maxWindow;
function maxWindow() {
window.moveTo(0, 0);
if (document.all) {
top.window.resizeTo(screen.availWidth, screen.availHeight);
}
else if (document.lay...