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怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...LBACK TimerFunc(HWND hwnd,UINT uMsg,UINT_PTR idEvent,DWORD dwTime)
{
char * buf = (char*)idEvent;
printf( "%s/n", buf );//这里打印的就是"abcde"
}
DWORD CALLBACK AutoBakup( PVOID lpParam )
{
char * buf = "abcde";
MSG msg;
UINT id=SetTimer(NULL,1,1000,TimerFunc);
...
What is the difference between join and merge in Pandas?
...ral methods to deal with these situations, among them merge, join, append, concat, combine, combine_first. Take a look at each of these to have a glimpse about which one would be the best fit for your situation
– xiaxio
Mar 29 at 19:03
...
UnicodeDecodeError, invalid continuation byte
...anks (and to the other that replied), I was under the mistaken belief that chars up until 255 would directly convert.
– RuiDC
Apr 5 '11 at 15:28
...
Program only crashes as release build — how to debug?
... was indeed caused by a buffer overflow, caused a single byte difference:
char *end = static_cast<char*>(attr->data) + attr->dataSize;
This is a fencepost error (off-by-one error) and was fixed by:
char *end = static_cast<char*>(attr->data) + attr->dataSize - 1;
The wei...
Start thread with member function
...t;< "i am member1" << std::endl;
}
void member2(const char *arg1, unsigned arg2) {
std::cout << "i am member2 and my first arg is (" << arg1 << ") and second arg is (" << arg2 << ")" << std::endl;
}
std::thread member1Thr...
Use String.split() with multiple delimiters
... answered May 13 '11 at 14:59
Richard HRichard H
32.9k3333 gold badges101101 silver badges130130 bronze badges
...
Number of occurrences of a character in a string [duplicate]
I am trying to get the number of occurrences of a certain character such as & in the following string.
6 Answers
...
Read file line by line using ifstream in C++
...d "token" you meant "delimiter". Right. With a comma, you'd say: int a, b; char c; while ((infile >> a >> c >> b) && (c == ','))
– Kerrek SB
Oct 18 '14 at 15:25
...
Undefined, unspecified and implementation-defined behavior
...t's look at a classic example:
#include <iostream>
int main()
{
char* p = "hello!\n"; // yes I know, deprecated conversion
p[0] = 'y';
p[5] = 'w';
std::cout << p;
}
The variable p points to the string literal "hello!\n", and the two assignments below try to modify tha...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
... i, arr) => arr.indexOf(v) !== i && acc.indexOf(v) === -1 ? acc.concat(v) : acc, [])
– ZephDavies
Nov 29 '18 at 14:56
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