engine: platform: win32: enabled attaching to existing console instead of creating new

engine/platform/win32/con_win.c

@@ -29,7 +29,10 @@ WIN32 CONSOLE
 
 typedef struct
 {
-	char		title[64];
+	string		title;
+	string		previousTitle;
+	UINT		previousCodePage;
+	UINT		previousOutputCodePage;
 	HWND		hWnd;
 	HANDLE		hInput;
 	HANDLE		hOutput;
@@ -45,6 +48,7 @@ typedef struct
 	string		lineBuffer[COMMAND_HISTORY];
 	qboolean	inputEnabled;
 	qboolean	consoleVisible;
+	qboolean	attached;
 
 	// log stuff
 	qboolean	log_active;
@@ -129,7 +133,7 @@ static void Wcon_PrintInternal( const char *msg, int length )
 
 void Wcon_ShowConsole( qboolean show )
 {
-	if( !s_wcd.hWnd || show == s_wcd.consoleVisible )
+	if( !s_wcd.hWnd || show == s_wcd.consoleVisible || s_wcd.attached )
 		return;
 
 	s_wcd.consoleVisible = show;
@@ -482,6 +486,7 @@ void Wcon_WinPrint( const char *pMsg )
 		Wcon_PrintInternal( s_wcd.consoleText, s_wcd.consoleTextLen );
 	}
 
+	if( !s_wcd.attached ) 
 		Wcon_UpdateStatusLine();
 }
 
@@ -509,7 +514,16 @@ void Wcon_CreateConsole( void )
 		s_wcd.log_active = true; // always make log
 	}
 
+	s_wcd.attached = ( AttachConsole( ATTACH_PARENT_PROCESS ) != 0 );
+	if( s_wcd.attached ) {
+		GetConsoleTitle( &s_wcd.previousTitle, sizeof( s_wcd.previousTitle ));
+		s_wcd.previousCodePage = GetConsoleCP();
+		s_wcd.previousOutputCodePage = GetConsoleOutputCP();
+	}
+	else {
 		AllocConsole();
+	}
+
 	SetConsoleTitle( s_wcd.title );
 	SetConsoleCP( CP_UTF8 );
 	SetConsoleOutputCP( CP_UTF8 );
@@ -525,6 +539,8 @@ void Wcon_CreateConsole( void )
 		return;
 	}
 
+	if( !s_wcd.attached )
+	{ 
 		SetWindowPos( s_wcd.hWnd, HWND_TOP, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOREPOSITION | SWP_SHOWWINDOW );
 
 		// show console if needed
@@ -543,6 +559,7 @@ void Wcon_CreateConsole( void )
 			ShowWindow( s_wcd.hWnd, SW_HIDE );
 		}
 	}
+}
 
 /*
 ================
@@ -573,11 +590,22 @@ void Wcon_DestroyConsole( void )
 
 	Sys_CloseLog();
 
+	if( !s_wcd.attached )
+	{ 
 		if( s_wcd.hWnd )
 		{
 			ShowWindow( s_wcd.hWnd, SW_HIDE );
 			s_wcd.hWnd = 0;
 		}
+	}
+	else
+	{
+		// reverts title & code page for console window that was before starting Xash3D
+		SetConsoleCP( s_wcd.previousCodePage );
+		SetConsoleOutputCP( s_wcd.previousOutputCodePage );
+		SetConsoleTitle( &s_wcd.previousTitle );
+		Con_Printf( "Press Enter to continue...\n" );
+	}
 
 	FreeConsole();
 
@@ -595,8 +623,8 @@ returned input text
 */
 char *Wcon_Input( void )
 {
-	int i;
+	DWORD i;
-	int eventsCount;
+	DWORD eventsCount;
 	static INPUT_RECORD events[1024];
 	
 	if( !s_wcd.inputEnabled )
@@ -642,7 +670,7 @@ set server status string in console
 */
 void Wcon_SetStatus( const char *pStatus )
 {
-	if( host.type != HOST_DEDICATED )
+	if( host.type != HOST_DEDICATED || s_wcd.attached )
 		return;
 
 	Q_strncpy( s_wcd.statusLine, pStatus, sizeof( s_wcd.statusLine ) - 1 );