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How do I get the coordinates of a mouse click on a canvas element?
...canvasY = event.pageY - totalOffsetY;
return {x:canvasX, y:canvasY}
}
HTMLCanvasElement.prototype.relMouseCoords = relMouseCoords;
The last line makes things convenient for getting the mouse coordinates relative to a canvas element. All that's needed to get the useful coordinates is
coords =...
How to set commands output as a variable in a batch file
... be set in %g then in VAR.
More informations: https://ss64.com/nt/for_cmd.html
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make iframe height dynamic based on content inside- JQUERY/Javascript
...essage:
function resize() {
var height = document.getElementsByTagName("html")[0].scrollHeight;
window.parent.postMessage(["setHeight", height], "*");
}
Finally, inside the iframe, add an onLoad to the body tag to fire the resize function:
<body onLoad="resize();">
...
CSS: How do I auto-resize an image to fit a 'div' container?
...even if the image supplied is too small or too big to fit in the div.
The HTML content:
<div id="myDiv">
<img alt="Client Logo" title="Client Logo" src="Imagelocation" />
</div>
The CSS content:
#myDiv
{
height: 104px;
width: 140px;
}
#myDiv img
{
max-width: 100%;
ma...
How to send email attachments?
...re's a new python email module, though: docs.python.org/library/email.mime.html
– Katriel
Jul 29 '10 at 13:33
@katrien...
Calculate the center point of multiple latitude/longitude coordinate pairs
...imilar based on what I found at this web site: geomidpoint.com/calculation.html.
– zeke
Jul 13 '11 at 16:37
...
Sharing link on WhatsApp from mobile website (not application) for Android
...ecently WhatsApp updated on its official website that we need to use
this HTML tag in order to make it shareable to mobile sites:
<a href="whatsapp://send?text=Hello%20World!">Hello, world!</a>
You can replace text= to have your link or any text content
...
Window.open and pass parameters by post method
...new window (which is tricky to get correct, with encoding of values in the HTML code), just open an empty window and post a form to it.
Example:
<form id="TheForm" method="post" action="test.asp" target="TheWindow">
<input type="hidden" name="something" value="something" />
<input t...
How to pass an array within a query string?
...ing I passed through browser.
http://localhost:8080/ServletsTutorials/*.html?
myname=abc&initial=xyz&checkbox=a&checkbox=b
checkbox is my parameter array here.
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Making Python loggers output all messages to stdout in addition to log file
...er(handler)
Please see: https://docs.python.org/2/howto/logging-cookbook.html
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