人们需要处理
信息越来越复杂
往往在
个应用
里是处理不完因此就出现多个应用协同处理同件事情
当然多个应用分开处理也是比较容易开发并且让应用复杂难度迅速降低比如在开发个银行交易系统有个报表生成主然后还有很多小区别报表生成这样就需要从主里创建小报表进行运行创建进程运行需要使用
CreateProcess来实现CreateProcess声明如下:WINBASEAPI
BOOL
WINAPI
CreateProcessA(
__in_opt LPCSTR lpApplicationName,
__inout_opt LPSTR lpCommandLine,
__in_opt LPSECURITY_ATTRIBUTES lpProcessAttributes,
__in_opt LPSECURITY_ATTRIBUTES lpThreadAttributes,
__in BOOL bInheritHandles,
__in DWORD dwCreationFlags,
__in_opt LPVOID lpEnvironment,
__in_opt LPCSTR lpCurrentDirectory,
__in LPSTARTUPINFOA lpStartupInfo,
__out LPPROCESS_INFORMATION lpProcessInformation
);
WINBASEAPI
BOOL
WINAPI
CreateProcessW(
__in_opt LPCWSTR lpApplicationName,
__inout_opt LPWSTR lpCommandLine,
__in_opt LPSECURITY_ATTRIBUTES lpProcessAttributes,
__in_opt LPSECURITY_ATTRIBUTES lpThreadAttributes,
__in BOOL bInheritHandles,
__in DWORD dwCreationFlags,
__in_opt LPVOID lpEnvironment,
__in_opt LPCWSTR lpCurrentDirectory,
__in LPSTARTUPINFOW lpStartupInfo,
__out LPPROCESS_INFORMATION lpProcessInformation
);
#
def UNICODE
#
CreateProcess CreateProcessW
#
# CreateProcess CreateProcessA
#end // !UNICODElpApplicationName是应用
名称lpCommandLine是命令行参数
lpProcessAttributes是进程
属性lpThreadAttributes是线程
属性bInheritHandles是否继承父进程
属性dwCreationFlags是创建标志
lpEnvironment是环境变量
lpCurrentDirectory是当前目录
lpStartupInfo是传给新进程
信息lpProcessInformation是进程返回
信息
例子如下:#001 //创建进程
#002 //蔡军生 2007/12/11 qq:9073204 深圳
#003 void TestCreateProcess(void)
#004 {
#005 //清空结构
#006 STARTUPINFO sInfo;
#007 PROCESS_INFORMATION pInfo;
#008
#009 ZeroMemory( &sInfo, 
(sInfo) );
#010 sInfo.cb = (sInfo);
#011 sInfo.dwFlags = STARTF_USESHOWWINDOW;
#012 sInfo.wShowWindow = SW_SHOWNORMAL;
#013
#014 ZeroMemory( &pInfo, (pInfo) );
#015
#016 //创建个进程
#017 ( !::CreateProcess( _T("WinCpp.exe"),
#018 NULL,
#019 NULL,
#020 NULL,
#021 FALSE,
#022 0,
#023 NULL,
#024 NULL,
#025 &sInfo,
#026 &pInfo )
#027 )
#028 {
#029 //输出出错信息
#030 const 
nBufSize = 512;
#031 TCHAR chBuf[nBufSize];
#032 ZeroMemory(chBuf,nBufSize);
#033
#034 wsprf(chBuf,_T("CreateProcess failed (%d).\n"), GetLastError
);
#035 OutputDebugString(chBuf);
#036 
;
#037 }
#038
#039
#040 //等进程关闭
#041 WaitForSingleObject( pInfo.hProcess, INFINITE );
#042
#043 //关闭进程和线程句柄
#044 CloseHandle( pInfo.hProcess );
#045 CloseHandle( pInfo.hThread );
#046
#047 }
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