4 files changed, 21 insertions, 0 deletions
diff --git a/indra/llwindow/llwindow.cpp b/indra/llwindow/llwindow.cpp
index 30bc743e72..67ef98d7b3 100644
--- a/indra/llwindow/llwindow.cpp
+++ b/indra/llwindow/llwindow.cpp
@@ -137,6 +137,12 @@ BOOL LLWindow::canDelete()
 	return TRUE;
 }
 
+//virtual
+void LLWindow::setTitle(const std::string title)
+{
+    // the action happens in the platform specific impl
+}
+
 // virtual
 void LLWindow::incBusyCount()
 {
diff --git a/indra/llwindow/llwindow.h b/indra/llwindow/llwindow.h
index 1384ddfd82..b76d313011 100644
--- a/indra/llwindow/llwindow.h
+++ b/indra/llwindow/llwindow.h
@@ -100,6 +100,13 @@ public:
 	virtual void showCursorFromMouseMove() = 0;
 	virtual void hideCursorUntilMouseMove() = 0;
 
+    // Provide a way to set the Viewer window title after the
+    // windows has been created. The initial use case for this
+    // is described in SL-16102 (update window title with agent 
+    // name, location etc. for non-interactive viewer) but it
+    // may also be useful in other cases.
+    virtual void setTitle(const std::string title);
+
 	// These two functions create a way to make a busy cursor instead
 	// of an arrow when someone's busy doing something. Draw an
 	// arrow/hour if busycount > 0.
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index bf78bcba29..26bb56d72d 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -1925,6 +1925,13 @@ void LLWindowWin32::moveWindow( const LLCoordScreen& position, const LLCoordScre
 	MoveWindow(mWindowHandle, position.mX, position.mY, size.mX, size.mY, TRUE);
 }
 
+void LLWindowWin32::setTitle(const std::string title)
+{
+    // TODO: Do we need to use the wide string version of this call
+    // to support non-ascii usernames (and region names?)
+    SetWindowTextA(mWindowHandle, title.c_str());
+}
+
 BOOL LLWindowWin32::setCursorPosition(const LLCoordWindow position)
 {
     ASSERT_MAIN_THREAD();
diff --git a/indra/llwindow/llwindowwin32.h b/indra/llwindow/llwindowwin32.h
index b44d458fc6..7a9a30ccea 100644
--- a/indra/llwindow/llwindowwin32.h
+++ b/indra/llwindow/llwindowwin32.h
@@ -94,6 +94,7 @@ public:
 	/*virtual*/ BOOL setSizeImpl(LLCoordScreen size);
 	/*virtual*/ BOOL setSizeImpl(LLCoordWindow size);
 	/*virtual*/ BOOL switchContext(BOOL fullscreen, const LLCoordScreen &size, BOOL disable_vsync, const LLCoordScreen * const posp = NULL);
+    /*virtual*/ void setTitle(const std::string title);
     void* createSharedContext() override;
     void makeContextCurrent(void* context) override;
     void destroySharedContext(void* context) override;