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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:
...
[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...
...P32 firmware I wrote:
BLEDevice::init("Monitor3");
BLEDevice::setMTU(128);
uint16_t MTUU = BLEDevice::getMTU();
Serial.print("MTU --> ");
Serial.println(MTUU);
I am using the latest BLE extension and my cellphone has BLE V5.0
PLease how can I proceed at app side?
Thanks in advance
...
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...
What are some common uses for Python decorators? [closed]
...or example, instead of:
def myMethod(ID, name):
if not (myIsType(ID, 'uint') and myIsType(name, 'utf8string')):
raise BlaBlaException() ...
I just declare:
@accepts(uint, utf8string)
def myMethod(ID, name):
...
and accepts() does all the work for me.
...
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 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
...
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...
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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Change column type from string to float in Pandas
...verting to an unsigned 8-bit type to save memory?
>>> s.astype(np.uint8)
0 1
1 2
2 249
dtype: uint8
The conversion worked, but the -7 was wrapped round to become 249 (i.e. 28 - 7)!
Trying to downcast using pd.to_numeric(s, downcast='unsigned') instead could help prevent this e...