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What is the correct way to create a single-instance WPF application?
Using C# and WPF under .NET (rather than Windows Forms or console), what is the correct way to create an application that can only be run as a single instance?
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Error 'LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt' after
...en I try to use Visual Studio 2010 to compile C++ projects, I get the following error message:
26 Answers
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了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...字符串。
std::string root_name( )：在给定从文件系统根目录开始的路径的情况下，此例程将返回包含 PATHNAME 的第一个字符的字符串。
std::string leaf( )：在给定绝对路径名称（例如，/home/user1/file2）的情况下，此例程将提供与文件名...
Test if executable exists in Python?
...nts.
Edit: path.strip('"') seems like the wrong thing to do here. Neither Windows nor POSIX appear to encourage quoted PATH items.
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jquery input select all on focus
...$("input[type=text]").focus(function() {
var save_this = $(this);
window.setTimeout (function(){
save_this.select();
},100);
});
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What's the best way to set a single pixel in an HTML5 canvas?
...As of July 2017, fillRect() is 5-6× faster on Firefox v54 and Chrome v59 (Win7x64).
Other, sillier alternatives are:
using getImageData()/putImageData() on the entire canvas; this is about 100× slower than other options.
creating a custom image using a data url and using drawImage() to show it:...
How to determine total number of open/active connections in ms sql server 2005
My PHP/MS Sql Server 2005/win 2003 Application occasionally becomes very unresponsive, the memory/cpu usage does not spike. If i try to open any new connection from sql management studio, then the it just hangs at the open connection dialog box.
how to deterime the total number of active connectio...
Open directory dialog
...e will be saved. I know that in WPF I should use the OpenFileDialog from Win32, but unfortunately the dialog requires file(s) to be selected - it stays open if I simply click OK without choosing one. I could "hack up" the functionality by letting the user pick a file and then strip the path to fig...
How do you post to an iframe?
...this
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var el = document.getElementById('targetFrame');
var doc, frame_win = getIframeWindow(el); // getIframeWindow is defined below
if (frame_win) {
doc = (window.contentDocument || window.document);
}
if (doc) {
doc.forms[0].someInputName.value = someValue;
...
doc.forms[0].submit()...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
We have an application running locally where we're experiencing the following error:
25 Answers
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