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Programmatically Determine a Duration of a Locked Workstation?

... this before, but from any application you can hookup a SessionSwitchEventHandler. Obviously your application will need to be running, but so long as it is: Microsoft.Win32.SystemEvents.SessionSwitch += new Microsoft.Win32.SessionSwitchEventHandler(SystemEvents_SessionSwitch); void SystemEvents_Se...
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Should try…catch go inside or outside a loop?

...w which way the performance would be affected, I guess were back to try-it-and-test (as always). – Jeffrey L Whitledge Sep 27 '08 at 18:35 1 ...
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Sleep for milliseconds

... Note that there is no standard C API for milliseconds, so (on Unix) you will have to settle for usleep, which accepts microseconds: #include <unistd.h> unsigned int microseconds; ... usleep(microseconds); ...
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How to save a PNG image server-side, from a base64 data string

I'm using Nihilogic's "Canvas2Image" JavaScript tool to convert canvas drawings to PNG images. What I need now is to turn those base64 strings that this tool generates, into actual PNG files on the server, using PHP. ...
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Generate list of all possible permutations of a string

...about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters. ...
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C语言面试那些事儿──一道指针与数组问题 - c++1y / stl - 清泛IT社区,为创新赋能!

首先看如下代码: int main(int argc, char** argv) {     int a[5] = {1,2,3,4,5};     int* ptr = (int*)(&a + 1);     printf("%d,%d\n", *(a+1), *(ptr-1));     return 0; }复制代码这道题在很多所谓经典C语言面试题里是常见...
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栈和队列的面试题Java实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... public Node current; //方法:入栈操作 public void push(int data) { if (head == null) { head = new Node(data); current = head; } else { Node node = new Node(data); node.pre = current;//current结点将作为当...
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Best way to require all files from a directory in ruby?

...ure will not be loaded if its name already appears in $". The file name is converted to an absolute path, so "require 'a'; require './a'" will not load a.rb twice. ruby-doc.org/core/classes/Kernel.html#M001418 – Derek Jan 29 '11 at 17:47 ...
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When should the xlsm or xlsb formats be used?

...memory, the file format has no effect on application/calculation speed Converters – both formats will have identical converter support share | improve this answer | fo...
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The name does not exist in the namespace error in XAML

... I have a simple MusicPlayer tutorial app I am using to learn WPF. I am converting a C# version of the tutorial to VB.NET step by step. ...