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What is the best way to create constants in Objective-C
...s defined in foundation and compiles to compatible formats for C, C++, and Win32.
As defined in NSObjCRuntime.h
#if defined(__cplusplus)
#define FOUNDATION_EXTERN extern "C"
#else
#define FOUNDATION_EXTERN extern
#endif
#if TARGET_OS_WIN32
#if defined(NSBUILDINGFOUNDATION)
#define FO...
libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
... //初始化支持 安全套接字层。
CURL_GLOBAL_WIN32 //初始化win32套接字库。
CURL_GLOBAL_NOTHING //没有额外的初始化。
2）void curl_global_cleanup(void);
描述：在结束libcurl使用的时候，用来对curl_global_init做的工...
What exactly are DLL files, and how do they work?
...ere are 2 types of libraries. Static libraries and dynamic libraries. In windows the file extensions are as follows: Static libraries (.lib) and dynamic libraries (.dll). The main difference is that static libraries are linked to the executable at compile time; whereas dynamic linked libraries ar...
[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
HRESULT IWebBrowser2::put_StatusText( BSTR bstr );
// shows using the Win32 function
// to allocate memory for the string:
BSTR bstrStatus = ::SysAllocString( L"Some text" );
if (bstrStatus == NULL)
return E_OUTOFMEMORY;
pBrowser->put_StatusText( bstrStatus );
// Free ...
How is TeamViewer so fast?
...neric desktop usage is linear movement of elements (scrolling text, moving windows, etc. opposed to transformation of elements).
The DirectX 3D performance of 1 FPS seems to confirm my guess to some extent.
share
|...
String concatenation: concat() vs “+” operator
...thod should be faster. However, with more strings the StringBuilder method wins, at least in terms of performance.
The source code of String and StringBuilder (and its package-private base class) is available in src.zip of the Sun JDK. You can see that you are building up a char array (resizing as ...
Maximum Length of Command Line String
In Windows, what is the maximum length of a command line string? Meaning if I specify a program which takes arguments on the command line such as abc.exe -name=abc
...
Simple C example of doing an HTTP POST and consuming the response
... separates the header from the body.
Here is a sample that takes the following command line arguments:
host
port
command (GET or POST)
path (not including the query data)
query data (put into the query string for GET and into the body for POST)
list of headers (Content-Length: is automatic if us...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...ecifiers, which shows the "mappings" of the specifiers to actual types (showing that the int is optional), a section of which is shown below:
Specifier(s) Type
------------- -------------
long long int long long int
long long long long int
long int long int
long ...
Is there a way to detect if a browser window is not currently active?
...activity periodically. When the user is not looking at the site (i.e., the window or tab does not have focus), it'd be nice to not run.
...