According to MSDN this redirects child stdout to parent stdout, but it does not, what is wrong?
PROCESS_INFORMATION pi;
STARTUPINFOA si;
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
si.dwFlags |= STARTF_USESTDHANDLES;
BOOL ret = CreateProcessA( 0, cmd_line, 0, 0, TRUE, CREATE_NO_WINDOW, 0, 0, & si, & pi);
using DuplicateHandle does not help:
HANDLE out, err;//global variables
...
PROCESS_INFORMATION pi;
STARTUPINFOA si;
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
BOOL ret = DuplicateHandle( GetCurrentProcess(), GetStdHandle(STD_OUTPUT_HANDLE), GetCurrentProcess(), &out, 0, TRUE, DUPLICATE_SAME_ACCESS);//todo check ret
ret = DuplicateHandle( GetCurrentProcess(), GetStdHandle(STD_ERROR_HANDLE), GetCurrentProcess(), &err, 0, TRUE, DUPLICATE_SAME_ACCESS);//todo check ret
si.hStdOutput = out;
si.hStdError = err;
si.dwFlags |= STARTF_USESTDHANDLES;
ret = CreateProcessA( 0, cmd_line, 0, 0, TRUE, CREATE_NO_WINDOW, 0, 0, & si, & pi);
BOOL ret = CreateProcessA( 0, cmd_line, 0, 0, TRUE, CREATE_NO_WINDOW, 0, 0, & si, & pi);
CREATE_NO_WINDOW causes this behavior, remove it:
BOOL ret = CreateProcessA( 0, cmd_line, 0, 0, TRUE, 0, 0, 0, & si, & pi);
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