syflyhua的专栏

1, 区别ZeroMemory和memset的区别：　　1、ZeroMemory是微软的SDK提供的，memset是属于CRun-time Library提供的。因此ZeroMemory只能用于Windows系统，而memset还可用于其他系统。　　2、ZeroMemory是一个宏，只是用于把一段内存的内容置零，内部其实是用 memset实现的，而memset除了对内存进行

class A{public:virtual void fun1() = 0;virtual void fun2() = 0;virtual void fun3() = 0;};class B{public:virtual void funB1() = 0;virtual void funB2() = 0;virtual void f

#include #include #include #include #pragma comment(lib, "Shlwapi.lib");int _tmain(int argc, _TCHAR* argv[]){ SYSTEM_INFO si; ZeroMemory(&si, sizeof(si)); GetSystemInfo(&si); TCHAR szPage

#include #include #include int g_ivarone = 1;int g_ivartwo = 2;int g_ivarthree = 3;static int s_ivarfour = 4;int _tmain(int agrc, _TCHAR* agrv[]){00415ED0 push ebp 00415ED1 mov

void PrintStr(LPCTSTR lpstr){ DWORD len = _tcslen(lpstr); DWORD rlen; EnterCriticalSection(&g_srcritical); WriteFile(g_hConsoleOut, lpstr, len, &rlen, NULL); WriteFile(g_hConsoleOut, "\r\n", 2,

HANDLE CreateFile(LPCTSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDispostion , DWORD dwFlagsAndAttributes, HANDLE hTemp

BOOL GetLine(HANDLE hFile, LPTSTR lpstr, DWORD size){ DWORD numRead; DWORD index = 0; DWORD newline = 0; TCHAR tc; while(index < size - 1) { if(!ReadFile(hFile, &tc, 1, &numRead, NULL) || nu

DWORD GetWindowThreadProcessId(HWND hWnd, LPDWORD lpdwProcessId );返回创建hWnd窗口的线程或者进程的 标识id。

#include #include #include #include #include #include #pragma comment(lib, "Shlwapi.lib")#include using namespace std;#ifdef _UNICODE #define tstring wstring#else#define tstring string#

class CPaintDC : public CDC{public:// Data members HWND m_hWnd; PAINTSTRUCT m_ps;// Constructor/destructor CPaintDC(HWND hWnd) { ATLASSERT(::IsWindow(hWnd)); m_hWnd = hWnd; m_hDC = ::Be

list, deque,vector, map , set ,array,string 可以放在一起比较。 顺序容器：list::begindeque::beginvector::beginlist::cbegindeque::cbeginvector::cbeginlist::cenddeque::cendvector::c

OVERLAPPED overlap;memset(&overlap, 0, sizeof(overlap));overlap.Offset = nNumBegin;OVERLAPPED overlapped[QUERYSIZE];HANDLE hEvents[QUERYSIZE];memset(overlapped, 0, QUERYSIZE*sizeof(OVE

typedef struct _SYSTEM_INFO {DWORD dwOemId;struct {    WORD wProcessorArchitecture;    WORD wReserved;}DWORD dwPageSize;LPVOID lpMinimumApplicationAddress;LPVOID lpMaximumApplicationAd

htonlu_long htonl(u_long hostlong);将主机的无符号长整形数转换成网络字节顺序。big-endianhtonsu_short htons(u_short hostshort);将主机的无符号短整形数转换成网络字节顺序。big-endian

作用：告诉编译器，已经使用了该变量，不必检测警告！在VC编译器下，如果您用最高级别进行编译，编译器就会很苛刻地指出您的非常细小的警告。当你声明了一个变量，而没有使用时，编译器就会报警告：“warning C4100: ''ＸＸＸＸ'' : unreferenced formal parameter.” 所以，为了让编译器不必检测你的警告，就使用UNREFERENCED_PA

calloc 语法:    #include   void *calloc( size_t num, size_t size );功能： 函数返回一个指向num 数组空间，每一数组元素的大小为size。如果错误发生返回NULL。 calloc则将初始化这部分的内存,设置为0(其中alloca(和calloc不一样)是向栈申请内存,因此无需释放

AddressFamily: AF_UNSPEC = 0 '/* unspecified */ AF_UNIX = 1 '/* local to host (pipes, portals) */ AF_INET = 2 '/* internetwork: UDP, TCP, etc. */ AF_

bResult = GetQueuedCompletionStatus(               ghCompletionPort,               &dwNumRead,               (LPDWORD)pKey,  --这个结构体指针没有初始化，导致崩溃。               &lpOverlapped,               I

struct in_addr {        union {                struct { u_char s_b1,s_b2,s_b3,s_b4; } S_un_b;                struct { u_short s_w1,s_w2; } S_un_w;                u_long S_addr;        } S_un

1. 生成def的dll.2. dumpbin /exports  testdll.dll > testdll.def  修改def文件,列出导出函数表。3.lib.exe /def:testdll.def 生成Lib文件。4.在工程里静态链接库文件，查看编译错误，再次修改def文件。5.再次生成Lib文件。6.编译正确。。。。