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How to make an OpenGL rendering context with transparent background?
...turn FALSE;
}
return TRUE;
}
LRESULT CALLBACK WindowFunc(HWND hWnd,UINT msg, WPARAM wParam, LPARAM lParam)
{
PAINTSTRUCT ps;
switch(msg)
{
case WM_ERASEBKGND:
return 0;
break;
case WM_CREATE:
break;
case WM_DESTROY:
...
What is the difference between a weak reference and an unowned reference?
...(name: String) { self.name = name }
}
class CreditCard {
let number: UInt64
unowned let customer: Customer
init(number: UInt64, customer: Customer) { self.number = number; self.customer = customer }
}
In this example, a Customer may or may not have a CreditCard, but a CreditCard will ...
Swift - How to convert String to Double
...String {
func doubleValue() -> Double
{
let minusAscii: UInt8 = 45
let dotAscii: UInt8 = 46
let zeroAscii: UInt8 = 48
var res = 0.0
let ascii = self.utf8
var whole = [Double]()
var current = ascii.startIndex
let negative =...
SHFileOperation函数总结（文件夹的移动、复制、删除） - C/C++ - 清泛网 -...
...OPSTRUCT
{
HWND hwnd; //父窗口句柄
UINT wFunc; //要执行的动作
LPCTSTR pFrom; //源文件路径，可以是多个文件
LPCTSTR pTo; //目标路径，可以是路径或文件名
FILEOP_FLAGS...
C/C++ NaN constant (literal)?
...char-sequence)",0) counterparts and NAN for assignments.
// Sample C code
uint64_t u64;
double x;
x = nan("0x12345");
memcpy(&u64, &x, sizeof u64); printf("(%" PRIx64 ")\n", u64);
x = -strtod("NAN(6789A)",0);
memcpy(&u64, &x, sizeof u64); printf("(%" PRIx64 ")\n", u64);
x = NAN;
mem...
how to convert an RGB image to numpy array?
...e ) :
img = Image.fromarray( np.asarray( np.clip(npdata,0,255), dtype="uint8"), "L" )
img.save( outfilename )
The 'Image.fromarray' is a little ugly because I clip incoming data to [0,255], convert to bytes, then create a grayscale image. I mostly work in gray.
An RGB image would be somet...
How do I create 7-Zip archives with .NET?
...;
Int32 litContextBits = 3; // for normal files
// UInt32 litContextBits = 0; // for 32-bit data
Int32 litPosBits = 0;
// UInt32 litPosBits = 2; // for 32-bit data
Int32 algorithm = 2;
Int32 numFastBytes = 128;
stri...
How do you bind an Enum to a DropDownList control in ASP.NET?
...hould be noted that this will not behave correctly of all enum types (like uint, ulong, long, etc.) Normally the most efficient field to search is the key. In this case the that would be the int since integers are a simple <,=,> comparison vs a string's < and > comparison for each char...
How to sort an array of integers correctly
... I tried this with negative numbers and had a strange result: > new Uint32Array([ -4, -7, 1, 4 ]).sort() returned Uint32Array(4) [ 1, 4, 4294967289, 4294967292 ].
– Nikolay D
Sep 5 at 12:24
...
What's the best way to bundle static resources in a Go program? [closed]
...k like line below (and some example can be found here)
var imageArray = []uint8{/*$binfile("./image.png","uint8[]")$*/}
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