Added glfwGetWindowPos.

src/internal.h

@@ -157,6 +157,7 @@ typedef struct _GLFWwindow
     GLboolean iconified;       // GL_TRUE if this window is iconified
     GLboolean closed;          // GL_TRUE if this window should be closed
     int       width, height;
+    int       positionX, positionY;
     int       mode;            // GLFW_WINDOW or GLFW_FULLSCREEN
     GLboolean sysKeysDisabled; // system keys disabled flag
     GLboolean windowNoResize;  // resize- and maximize gadgets disabled flag

src/win32/win32_window.c

@@ -906,6 +906,9 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
 
         case WM_MOVE:
         {
+            window->positionX = LOWORD(lParam);
+            window->positionY = HIWORD(lParam);
+
             // If the mouse is locked, update the clipping rect
             if (window == _glfwLibrary.cursorLockWindow)
             {

src/window.c

@@ -807,6 +807,26 @@ GLFWAPI void glfwSetWindowSize(GLFWwindow window, int width, int height)
 }
 
 
+//========================================================================
+// Get the window position
+//========================================================================
+
+GLFWAPI void glfwGetWindowPos(GLFWwindow window, int* x, int* y)
+{
+    if (!_glfwInitialized)
+    {
+        _glfwSetError(GLFW_NOT_INITIALIZED);
+        return;
+    }
+
+    if (x != NULL)
+        *x = window->positionX;
+
+    if (y != NULL)
+        *y = window->positionY;
+}
+
+
 //========================================================================
 // Set the window position
 //========================================================================

src/x11/x11_window.c

@@ -1215,6 +1215,14 @@ static void processSingleEvent(void)
                                                window->height);
                 }
             }
+
+            if (event.xconfigure.x != window->positionX ||
+                event.xconfigure.y != window->positionY)
+            {
+                window->positionX = event.xconfigure.x;
+                window->positionY = event.xconfigure.y;
+            }
+
             break;
         }