Merge.cpp: Output the message of message box to parent console if '/noninteractive...

diff --git a/Src/Merge.cpp b/Src/Merge.cpp
index dbd44f9..1f39f2b 100644 (file)
--- a/Src/Merge.cpp
+++ b/Src/Merge.cpp
@@ -474,15 +474,15 @@ int CMergeApp::ExitInstance()
        return 0;
 }
 
-int CMergeApp::DoMessageBox( LPCTSTR lpszPrompt, UINT nType, UINT nIDPrompt )
+int CMergeApp::DoMessageBox(LPCTSTR lpszPrompt, UINT nType, UINT nIDPrompt)
 {
        // This is a convenient point for breakpointing !!!
 
        // Create a handle to store the parent window of the message box.
        CWnd* pParentWnd = CWnd::GetActiveWindow();
-       
+
        // Check whether an active window was retrieved successfully.
-       if ( pParentWnd == nullptr )
+       if (pParentWnd == nullptr)
        {
                // Try to retrieve a handle to the last active popup.
                CWnd * mainwnd = GetMainWnd();
@@ -495,7 +495,16 @@ int CMergeApp::DoMessageBox( LPCTSTR lpszPrompt, UINT nType, UINT nIDPrompt )
        // (if caller set the style)
 
        if (m_bNonInteractive)
+       {
+               if (AttachConsole(static_cast<DWORD>(-1)))
+               {
+                       DWORD dwWritten;
+                       String line = _T("WinMerge: ") + String(lpszPrompt) + _T("\n");
+                       WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE), line.c_str(), static_cast<DWORD>(line.length()), &dwWritten, nullptr);
+                       FreeConsole();
+               }
                return IDCANCEL;
+       }
 
        // Create the message box dialog.
        CMessageBoxDialog dlgMessage(pParentWnd, lpszPrompt, _T(""), nType | MB_RIGHT_ALIGN,