Avoid overwriting inherited startup flags when launching Python. (#151)

zooba · web-flow · commit eff7e024c386 · 2025-07-30T16:52:24.000+01:00
Fixes #150
diff --git a/src/pymanager/_launch.cpp b/src/pymanager/_launch.cpp
@@ -122,7 +122,7 @@ launch(const wchar_t *executable, const wchar_t *insert_args, int skip_argc, DWO
         goto exit;
     }
 
-    si.dwFlags = STARTF_USESTDHANDLES;
+    si.dwFlags |= STARTF_USESTDHANDLES;
     if (!CreateProcessW(executable, newCmdLine, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi)) {
         lastError = GetLastError();
         goto exit;

Original file line number	Diff line number	Diff line change
`@@ -122,7 +122,7 @@ launch(const wchar_t executable, const wchar_t insert_args, int skip_argc, DWO`
`122`	`122`	`goto exit;`
`123`	`123`	`}`
`124`	`124`
`125`		`- si.dwFlags = STARTF_USESTDHANDLES;`
	`125`	`+ si.dwFlags \|= STARTF_USESTDHANDLES;`
`126`	`126`	`if (!CreateProcessW(executable, newCmdLine, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi)) {`
`127`	`127`	`lastError = GetLastError();`
`128`	`128`	`goto exit;`