Set -mwindows to use Win32 subsystem, attach to parent process console if we have one

Author: azonenberg

src/ngscopeclient/CMakeLists.txt

@@ -22,6 +22,10 @@ else()
 	set(RC_FILES "")
 endif()
 
+if(WIN32 AND (NOT MSVC))
+	add_compile_options(-mwindows)
+endif()
+
 ###############################################################################
 #C++ compilation
 add_executable(ngscopeclient

src/ngscopeclient/main.cpp

@@ -72,7 +72,13 @@ int main(int argc, char* argv[])
 	//If on Windows, and not run from a console
 	//remove the stdout log sink that would otherwise spawn a console on startup
 	#ifdef _WIN32
-		if(GetConsoleWindow() == NULL)
+		if(!AttachConsole(ATTACH_PARENT_PROCESS))
+		{
+			LogNotice(
+				"Startup: skipping stdout log sink since not run from a console "
+				"(AttachConsole reports parent process has no console)\n");
+		}
+		else if(GetConsoleWindow() == NULL)
 			LogNotice("Startup: skipping stdout log sink since not run from a console (no console window)\n");
 		else if(getenv("PROMPT") != nullptr)
 			LogNotice("Startup: skipping stdout log sink since not run from a console (no prompt)\n");