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// Program 1. // This guy will do the passing... // #include <stdio.h> #include <windows.h> int main(void) { int i=0,lc=0; // Line count char str[132]; char ch='a'; FILE *fp; fp=fopen("C:\\test.txt","r+"); if(!fp)exit(1); else { while(ch!=EOF) { ch=fgetc(fp); if(ch=='\n'){ i=0; lc++; } if(ch!='\n'){ str[i]=ch; if(i==0){ //if(str[0]=='#')lc--; if(str[0]!='1')lc--; } i++; } } } lc--; fclose(fp); return(lc); // This value will be passed to the 2nd program. } // Program #2 // This guy recieves the value from the return() of program #1. // #include <stdio.h> #include <windows.h> void main(void) { DWORD exit_status; char line_count[14]="LineCount.exe"; SECURITY_ATTRIBUTES sattr; STARTUPINFO sinfo; PROCESS_INFORMATION pinfo; ZeroMemory(&sinfo,sizeof(sinfo)); sattr.nLength=sizeof(SECURITY_ATTRIBUTES); sattr.lpSecurityDescriptor=NULL; sattr.bInheritHandle=FALSE; if(!CreateProcess(NULL,line_count,NULL,NULL,FALSE,0,NULL,NULL,&sinfo,&pinfo)) { printf("ERROR: Cannot launch child process\n"); exit(1); } WaitForSingleObject(&pinfo.hProcess,INFINITE); TerminateProcess(&pinfo,0); GetExitCodeProcess(pinfo.hProcess,&exit_status); while(exit_status==STILL_ACTIVE){ if(GetExitCodeProcess(pinfo.hProcess,&exit_status)) { if(exit_status!=STILL_ACTIVE )printf("%d",exit_status ); } else printf("GetExitCodeProcess() failed\n"); } }
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