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Merging two images in C#/.NET
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basically i use this in one of our apps:
we want to overlay a playicon over a frame of a video:
Image playbutton;
try
{
playbutton = Image.FromFile(/*somekindofpath*/);
}
catch (Exception ex)
{
return;
}
Image frame;
tr...
makefile execute another target
... rm -f *.o $(EXEC)
fresh : clean clearscr all
clearscr:
clear
By calling make fresh you get first the clean target, then the clearscreen which runs clear and finally all which does the job.
EDIT Aug 4
What happens in the case of parallel builds with make’s -j option?
There's a way of fix...
File path to resource in our war/WEB-INF folder?
...y war/WEB-INF folder of my app engine project. I read in the FAQs that you can read a file from there in a servlet context. I don't know how to form the path to the resource though:
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string.ToLower() and string.ToLowerInvariant()
...ding on the current culture, ToLower might produce a culture specific lowercase letter, that you aren't expecting. Such as producing ınfo without the dot on the i instead of info and thus mucking up string comparisons. For that reason, ToLowerInvariant should be used on any non-language-specific ...
what is .netrwhist?
..._dirhist_6='/Users/wolever/Sites/massuni-wiki/conf'
netrw_dirhistmax indicates the maximum number of modified directories it stores in the history file. ie Max History Size. netrw_dirhist_cnt indicates the current history count of modified directories.
If you want to disable netrw to generate his...
Regex expressions in Java, \\s vs. \\s+
...ce, whereas the second one matches one or many whitespaces. They're the so-called regular expression quantifiers, and they perform matches like this (taken from the documentation):
Greedy quantifiers
X? X, once or not at all
X* X, zero or more times
X+ X, one or more times
X{n} X, exactly n t...
Static table view outside UITableViewController
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Thank you for this. Can confirm it works in Xcode 8.3.1.
– Atharva Vaidya
May 11 '17 at 0:19
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Logging errors in ASP.NET MVC
I'm currently using log4net in my ASP.NET MVC application to log exceptions. The way I'm doing this is by having all my controllers inherit from a BaseController class. In the BaseController's OnActionExecuting event, I log any exceptions that may have occurred:
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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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Use INSERT ... ON DUPLICATE KEY UPDATE. For example:
INSERT INTO `usage`
(`thing_id`, `times_used`, `first_time_used`)
VALUES
(4815162342, 1, NOW())
ON DUPLICATE KEY UPDATE
`times_used` = `times_used` + 1
...
Append TimeStamp to a File Name
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You can use DateTime.ToString Method (String)
DateTime.Now.ToString("yyyyMMddHHmmssfff")
or string.Format
string.Format("{0:yyyy-MM-dd_HH-mm-ss-fff}", DateTime.Now);
or Interpolated Strings
$"{DateTime.Now:yyyy-MM-dd_HH-mm-...