大约有 26,000 项符合查询结果（耗时：0.0588秒） [XML]
Capture screenshot of active window?
...le
Image img = sc.CaptureScreen();
// display image in a Picture control named imageDisplay
this.imageDisplay.Image = img;
// capture this window, and save it
sc.CaptureWindowToFile(this.Handle,"C:\\temp2.gif",ImageFormat.Gif);
http://www.developerfusion.com/code/4630/capture-a-screen-shot/
...
How do I pass command-line arguments to a WinForms application?
...g[] args)
{
// For the sake of this example, we're just printing the arguments to the console.
for (int i = 0; i < args.Length; i++) {
Console.WriteLine("args[{0}] == {1}", i, args[i]);
}
}
The arguments will then be stored in the args string array:
$ AppB.exe firstArg secondArg thir...
How to differ sessions in browser-tabs?
In a web-application implemented in java using JSP and Servlets; if I store information in the user session, this information is shared from all the tabs from the same browser. How to differ sessions in the browser-tabs?
In this example:
...
Mapping two integers to one, in a unique and deterministic way
...led pairing functions. Wikipedia introduces a specific pairing function, namely the Cantor pairing function:
Three remarks:
As others have made clear, if you plan to implement a pairing function, you may soon find you need arbitrarily large integers (bignums).
If you don't want to make a distin...
How to render a PDF file in Android
...close();
For more information see the sample app.
For older APIs I recommend Android PdfViewer library, it is very fast and easy to use, licensed under Apache License 2.0:
pdfView.fromAsset(String)
.pages(0, 2, 1, 3, 3, 3) // all pages are displayed by default
.enableSwipe(true)
.swipeHori...
When should I use perror(“…”) and fprintf(stderr, “…”)?
Reading the man pages and some code did not really help me in
understanding the difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") .
...
How do I keep track of pip-installed packages in an Anaconda (Conda) environment?
... Python distribution, and I have started using the Anaconda (Conda) environment. I can use the standard conda install... command to put packages from the distribution into my environments, but to use anything outside (i.e. Flask-WTF, flask-sqlalchemy, and alembic) I need to use pip install in th...
Automatic post-registration user authentication
...ould be automatically logged in with those credentials, instead of being immediately forced to provide their credentials again.
...
json_encode sparse PHP array as JSON array, not JSON object
...uential - it has keys 0 and 2, but doesn't have 1 as a key.
Just having numeric indexes isn't enough. json_encode will only encode your PHP array as a JSON array if your PHP array is sequential - that is, if its keys are 0, 1, 2, 3, ...
You can reindex your array sequentially using the array_value...
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
... strictly speaking, there is no such thing as "unsigned integer overflow") means undefined behaviour. And this means anything can happen, and discussing why does it happen under the rules of C++ doesn't make sense.
C++11 draft N3337: §5.4:1
If during the evaluation of an expression, the result...