Thread: Detect Running Programs?

Here's a function I wrote for a tiny debugger I made a while back that gives some rudimentary info on processes (the whole script can be found here):

Code:

void process_snap(void) {
	FILE *hFile;
	HANDLE hSnapshot;
	PROCESSENTRY32 ppe32E = { sizeof(PROCESSENTRY32) };
	int proccount = 0;

	if(NULL == (hFile = fopen("proc_snap.log","a"))) {
		printf("+--Could not open log file--+\n");
		goto end;
	}


	hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
	if(NULL == hSnapshot) {
		fprintf(hFile,"+--Could not create process snapshot: %d--+\n",GetLastError());
		goto end;
	}



	if(FALSE == Process32First(hSnapshot,&ppe32E)) {
		fprintf(hFile,"+--Could not get first process: %d--+\n",GetLastError());
		goto end;
	}
	fprintf(hFile,"+---PROCESS SNAP RESULTS:-----+\n");

	do {
		fprintf(hFile,"Process   %d:\n",++proccount);
		fprintf(hFile,"--Path:   %s\n",ppe32E.szExeFile);
		fprintf(hFile,"--ProcID: 0x%x\n",ppe32E.th32ProcessID);
	} while(FALSE != Process32Next(hSnapshot,&ppe32E));

	fprintf(hFile,"+-----------------------------+\n");
	fprintf(hFile,"\n\n\n");
	printf("+--Everything snapped, logs in proc_snap.log--+\n");


	end:
		fclose(hFile);
}

You can of course do it other ways, namely using things like the native API, but I feel that's beyond the basic scope of what you're asking (at least right now.)