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Merge branch 'redirection-fix' into 'master'

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Only reroute stdout etc. to new console if not already redirected

Closes #5650

See merge request OpenMW/openmw!408
This commit is contained in:
psi29a 2020-11-14 09:30:57 +00:00
commit 37e81f0df8
1 changed files with 26 additions and 6 deletions
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32
components/debug/debugging.cpp
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@ -11,11 +11,22 @@
namespace Debug
{
#ifdef _WIN32
bool isRedirected(DWORD nStdHandle)
{
DWORD fileType = GetFileType(GetStdHandle(nStdHandle));
return (fileType == FILE_TYPE_DISK) || (fileType == FILE_TYPE_PIPE);
}
bool attachParentConsole()
{
if (GetConsoleWindow() != nullptr)
return true;
bool inRedirected = isRedirected(STD_INPUT_HANDLE);
bool outRedirected = isRedirected(STD_OUTPUT_HANDLE);
bool errRedirected = isRedirected(STD_ERROR_HANDLE);
if (AttachConsole(ATTACH_PARENT_PROCESS))
{
fflush(stdout);
@ -24,12 +35,21 @@ namespace Debug
std::cerr.flush();
// this looks dubious but is really the right way
_wfreopen(L"CON", L"w", stdout);
_wfreopen(L"CON", L"w", stderr);
_wfreopen(L"CON", L"r", stdin);
freopen("CON", "w", stdout);
freopen("CON", "w", stderr);
freopen("CON", "r", stdin);
if (!inRedirected)
{
_wfreopen(L"CON", L"r", stdin);
freopen("CON", "r", stdin);
}
if (!outRedirected)
{
_wfreopen(L"CON", L"w", stdout);
freopen("CON", "w", stdout);
}
if (!errRedirected)
{
_wfreopen(L"CON", L"w", stderr);
freopen("CON", "w", stderr);
}
return true;
}