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How to merge a transparent png image with another image using PIL
....png")
foreground = Image.open("test2.png")
background.paste(foreground, (0, 0), foreground)
background.show()
First parameter to .paste() is the image to paste. Second are coordinates, and the secret sauce is the third parameter. It indicates a mask that will be used to paste the image. If you p...
What is a “callback” in C and how are they implemented?
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207
There is no "callback" in C - not more than any other generic programming concept.
They're imp...
How to convert an int to a hex string?
...gave, I think one of these snippets shows what you want.
>>> chr(0x65) == '\x65'
True
>>> hex(65)
'0x41'
>>> chr(65) == '\x41'
True
Note that this is quite different from a string containing an integer as hex. If that is what you want, use the hex builtin.
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How to get string width on Android?
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203
You can use the getTextBounds(String text, int start, int end, Rect bounds) method of a Paint o...
Make footer stick to bottom of page correctly [duplicate]
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10 Answers
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Is there a way to iterate over a slice in reverse in Go?
... loop counting down:
s := []int{5, 4, 3, 2, 1}
for i := len(s)-1; i >= 0; i-- {
fmt.Println(s[i])
}
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Regex exactly n OR m times
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answered Dec 14 '12 at 8:10
Mark ByersMark Byers
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String formatting in Python 3
...ing a single argument twice (as @Burhan Khalid noted in the comments):
"({0.goals} goals, ${0.penalties})".format(self)
Explaining:
{} means just the next positional argument, with default format;
{0} means the argument with index 0, with default format;
{:d} is the next positional argument, wi...
Is there a C# type for representing an integer Range?
...need to store an integer range. Is there an existing type for that in C# 4.0?
10 Answers
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Extract a number from a string (JavaScript)
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606
For this specific example,
var thenum = thestring.replace( /^\D+/g, ''); // replace all leadi...