window中进程间如何通信vc++技术 (共享内存)

 

//一个间接办法，你可用一个“共享名”申请一块共享内存块，进行读写：HANDLE GetShare(char * &ShareP,int size,char *ShareName) { ShareP申请的内存块地址，size字节数，ShareName共享名 HANDLE fh=CreateFileMapping((HANDLE)-1,0, PAGE_READWRITE,0, Size, ShareName); ShareP=(char *)MapViewOfFile(fh, FILE_MAP_ALL_ACCESS, 0,0,0); if (GetLastError()!=ERROR_ALREADY_EXISTS) ZeroMemory(ShareP,size); // 共享区初始化 return(fh); }char * ShareP=NULL;void test() // 申请一块128个字节的字符数组 { HANDLE fh=GetShare(ShareP,128,"ShareForMyProg"); for (int i=0;i<128;i++) ShareP[i]=i; CloseHandle(fh); }HANDLE GetShare(char * &ShareP,int size,char *ShareName) { ShareP申请的内存块地址，size字节数，ShareName共享名 HANDLE fh=CreateFileMapping((HANDLE)-1,0, PAGE_READWRITE,0, Size, ShareName); ShareP=(char *)MapViewOfFile(fh, FILE_MAP_ALL_ACCESS, 0,0,0); if (GetLastError()!=ERROR_ALREADY_EXISTS) ZeroMemory(ShareP,size); // 共享区初始化 return(fh); } char * ShareP=NULL;// 申请一块128个字节的字符数组 HANDLE fh=GetShare(ShareP,128,"ShareForMyProg"); file://申请一块128个字节符数组 for (int i=0;i<128;i++) file://使用、测试 ShareP[i]=i; ..................... CloseHandle(fh); // 释放共享内存句柄