零度x's blog » VC学习 http://www.lingdux.com Take it slowly,it's OK,it's OK. Tue, 06 Jul 2010 03:50:07 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 获取其它进程的启动参数 http://www.lingdux.com/2010/175.html http://www.lingdux.com/2010/175.html#comments Sat, 08 May 2010 12:20:06 +0000 零度x http://www.lingdux.com/?p=175 阅读全文——共438字]]> void GetWindowCommandLine(char *buffer,DWORD pid)
{
 CHAR *P=::GetCommandLine();
 char *pEvn;
 char *pAddr;
 char *pFunction;
 pFunction=(char *)::GetCommandLine;
 memcpy(&pAddr,pFunction+1,sizeof(char *));
 DWORD dwRet;
 HANDLE hProcess=::OpenProcess(PROCESS_ALL_ACCESS, false,pid);
 ::ReadProcessMemory(hProcess, pAddr,&pEvn, sizeof(DWORD),&dwRet);
 char Buff[512];
 ::ReadProcessMemory(hProcess, pEvn, Buff, 512, &dwRet);
 strcpy(buffer,Buff);
 CloseHandle(hProcess);
}

]]> http://www.lingdux.com/2010/175.html/feed 0 求两个数最大公约数的算法 http://www.lingdux.com/2010/156.html http://www.lingdux.com/2010/156.html#comments Mon, 15 Mar 2010 04:19:05 +0000 零度x http://www.lingdux.com/?p=156 阅读全文——共74字]]> 上课老师讲的，记录一下。
int func(int m,int n)
{
int r=1;
while(r!=0)
{
r=m%n;
m=n;
n=r;
}
return m;
}

]]> http://www.lingdux.com/2010/156.html/feed 0 vc实现域名转换成IP http://www.lingdux.com/2010/146.html http://www.lingdux.com/2010/146.html#comments Sat, 20 Feb 2010 12:41:11 +0000 零度x http://www.lingdux.com/?p=146 阅读全文——共210字]]>  WSADATA wsa;
 WSAStartup(MAKEWORD(2,2),&wsa);
 hostent *pht;
 pht=gethostbyname(“www.lingdux.com”);
 LPSTR pstr=pht->h_addr_list[0];
 struct in_addr inaddr;
 memmove(&inaddr,pstr,4);
 MessageBoxA(0,inet_ntoa(inaddr),0,0);

]]> http://www.lingdux.com/2010/146.html/feed 0 vc实现FTP上传文件 http://www.lingdux.com/2010/143.html http://www.lingdux.com/2010/143.html#comments Fri, 12 Feb 2010 17:58:15 +0000 零度x http://www.lingdux.com/?p=143 阅读全文——共461字]]> CFtpConnection *pconnection;
 CInternetSession *session=new CInternetSession(AfxGetAppName(),1,PRE_CONFIG_INTERNET_ACCESS);
 try
 {
  pconnection=session->GetFtpConnection(FtpAddress,UserName,Password);
 }
 catch(CInternetException *pEx)
 {
  WCHAR errror[1024]={0};
  if(pEx->GetErrorMessage(ERROR,1024))
   MessageBox(ERROR);
  else
   MessageBox(L”出现异常”);
 }
 if(pconnection->PutFile(L”C:\\ip.txt”,path))
  MessageBox(L”上传成功！”);
 else
  MessageBox(L”上传失败！”);
 pconnection->Close();

]]> http://www.lingdux.com/2010/143.html/feed 0 记一次关于GetMessage()的错误 http://www.lingdux.com/2010/141.html http://www.lingdux.com/2010/141.html#comments Sat, 23 Jan 2010 17:31:35 +0000 零度x http://www.lingdux.com/?p=141 阅读全文——共371字]]> 今天抛弃MFC写了一个窗口，用while(GetMessage())进入消息循环

在填写GetMessage()的参数的时候，按照VS2008显示的参数进行填写。GetMessage(&msg,hwnd,0,0)

写好回调后编译，运行，结果点退出之后窗体消失，程序并不退出，打开任务管理器发现CPU飙满。

baidu到一篇和我遇到问题一样，没有解决。

OD载入调试，在GetMessage下断，发现返回-1，加了一句GetLastError()返回0×578,窗体指针无效，豁然开朗。

原来是GetMessage()的第二个参数应该添NULL表示接受所有窗口的消息，我添的是hwnd，DestroyWindow后句柄就无效了，因此GetMessage()返回-1并且进入死循环了。改成NULL就可以正常接收到PostQuitMessage()的消息了！

]]> http://www.lingdux.com/2010/141.html/feed 0 VC内嵌汇编 http://www.lingdux.com/2009/135.html http://www.lingdux.com/2009/135.html#comments Fri, 27 Nov 2009 02:44:56 +0000 零度x http://www.lingdux.com/?p=135 阅读全文——共356字]]> #include “windows.h”
#include “tchar.h”
WCHAR a[]=L”123″;
int WINAPI MyFonc(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
 WCHAR b[]=L”456″;
 HMODULE hmodule=LoadLibrary(L”user32.dll”);
 FARPROC addr=GetProcAddress(hmodule,”MessageBoxW”);
 __asm
 {
  push 0
  mov eax,offset a//全局用offset
  push eax
  lea eax,b//局部用lea
  push eax
  push 0
  call addr
 }
 return 0;
}

]]> http://www.lingdux.com/2009/135.html/feed 0 不用MFC的类和函数实现资源释放 http://www.lingdux.com/2009/98.html http://www.lingdux.com/2009/98.html#comments Wed, 22 Jul 2009 10:17:38 +0000 零度x http://www.lingdux.com/?p=98 阅读全文——共421字]]> 昨天写win32程序时候用到资源释放，网上一查基本都是用MFC的类和函数实现的，下面的是不用MFC的类和函数实现资源释放的代码：

HINSTANCE h=GetModuleHandle(NULL);
HRSRC hr = FindResource(h, MAKEINTRESOURCE(IDR_SYS1), “SYS”);
HGLOBAL hg = LoadResource(h, hr);
LPVOID pv = (PSZ)LockResource(hg);
HANDLE cr;
cr=CreateFile(“C:\\1.sys”,GENERIC_READ|GENERIC_WRITE,FILE_SHARE_WRITE,NULL,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,0);
int length = SizeofResource(h,hr);
DWORD dw;
WriteFile(cr,hg,length,&dw,NULL);
CloseHandle(cr);

]]> http://www.lingdux.com/2009/98.html/feed 0 简单实现进程互斥 http://www.lingdux.com/2009/93.html http://www.lingdux.com/2009/93.html#comments Sun, 12 Jul 2009 15:49:50 +0000 零度x http://www.lingdux.com/?p=93 阅读全文——共115字]]>  HANDLE huchi=CreateMutex(NULL,false,”server”);
 if(GetLastError()==ERROR_ALREADY_EXISTS)
 {
  huchi=NULL;
  exit(0);;
 }

]]> http://www.lingdux.com/2009/93.html/feed 2 优化VC程序体积的一段代码 http://www.lingdux.com/2009/86.html http://www.lingdux.com/2009/86.html#comments Sat, 11 Jul 2009 15:15:23 +0000 零度x http://www.lingdux.com/?p=86 阅读全文——共563字]]> #ifdef NDEBUG
#pragma optimize(“gsy”,on)
//RELEASE方式编译
#pragma comment(linker,”/RELEASE”)
#ifdef _MERGE_RDATA_
//合并区段
#pragma comment(linker,”/merge:.rdata=.text”)
#endif
#pragma comment(linker,”/merge:.data=.text”)
#pragma comment(linker,”/merge:.reloc=.text”)
#if _MSC_VER>=1000
#endif
#endif


//入口点函数
#pragma comment(linker,”/ENTRY:WinMain”)
#pragma comment(linker,”/MERGE:.rdata=.text”)
#pragma comment(linker,”/MERGE:.data=.text”)
#pragma comment(lib,”msvcrt.lib”)
#if(_MSC_VER<1300)
#pragma comment(linker,”/IGNORE:4078″)
#pragma comment(linker,”/OPT:NOWIN98″)
#endif
#define WIN32_LEAN_AND_MEAN

]]> http://www.lingdux.com/2009/86.html/feed 0