Added window iconification callback.

include/GL/glfw3.h

@@ -386,6 +386,7 @@ typedef void (* GLFWwindowsizefun)(GLFWwindow,int,int);
 typedef int  (* GLFWwindowclosefun)(GLFWwindow);
 typedef void (* GLFWwindowrefreshfun)(GLFWwindow);
 typedef void (* GLFWwindowfocusfun)(GLFWwindow,int);
+typedef void (* GLFWwindowiconifyfun)(GLFWwindow,int);
 typedef void (* GLFWmousebuttonfun)(GLFWwindow,int,int);
 typedef void (* GLFWmouseposfun)(GLFWwindow,int,int);
 typedef void (* GLFWmousewheelfun)(GLFWwindow,int);
@@ -431,6 +432,7 @@ GLFWAPI void glfwSetWindowSizeCallback(GLFWwindow window, GLFWwindowsizefun cbfu
 GLFWAPI void glfwSetWindowCloseCallback(GLFWwindow window, GLFWwindowclosefun cbfun);
 GLFWAPI void glfwSetWindowRefreshCallback(GLFWwindow window, GLFWwindowrefreshfun cbfun);
 GLFWAPI void glfwSetWindowFocusCallback(GLFWwindow window, GLFWwindowfocusfun cbfun);
+GLFWAPI void glfwSetWindowIconifyCallback(GLFWwindow window, GLFWwindowiconifyfun cbfun);
 
 /* Event handling */
 GLFWAPI void glfwPollEvents(void);

readme.html

@@ -269,6 +269,7 @@ version of GLFW.</p>
   <li>Added <code>glfwGetVersionString</code> function for determining which code paths were enabled at compile time</li>
   <li>Added <code>glfwGetWindowPos</code> function for querying the position of the specified window</li>
   <li>Added <code>glfwSetWindowFocusCallback</code> function and GLFWwindowfocusfun type for receiving window focus events</li>
+  <li>Added <code>glfwSetWindowIconifyCallback</code> function and GLFWwindowiconifyfun type for receiving window iconification events</li>
   <li>Added <code>windows</code> simple multi-window test program</li>
   <li>Added initial window title parameter to <code>glfwOpenWindow</code></li>
   <li>Changed buffer bit depth parameters of <code>glfwOpenWindow</code> to window hints</li>

src/cocoa/cocoa_window.m

@@ -94,11 +94,17 @@
 - (void)windowDidMiniaturize:(NSNotification *)notification
 {
     window->iconified = GL_TRUE;
+
+    if (window->windowIconifyCallback)
+        window->windowIconifyCallback(window, window->iconified);
 }
 
 - (void)windowDidDeminiaturize:(NSNotification *)notification
 {
     window->iconified = GL_FALSE;
+
+    if (window->windowIconifyCallback)
+        window->windowIconifyCallback(window, window->iconified);
 }
 
 - (void)windowDidBecomeKey:(NSNotification *)notification

src/internal.h

@@ -149,6 +149,7 @@ typedef struct _GLFWwindow
     GLFWwindowclosefun   windowCloseCallback;
     GLFWwindowrefreshfun windowRefreshCallback;
     GLFWwindowfocusfun   windowFocusCallback;
+    GLFWwindowiconifyfun windowIconifyCallback;
     GLFWmousebuttonfun   mouseButtonCallback;
     GLFWmouseposfun      mousePosCallback;
     GLFWmousewheelfun    mouseWheelCallback;

src/win32/win32_window.c

@@ -697,7 +697,14 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
 
             _glfwInputWindowFocus(window, active);
 
-            window->iconified = iconified;
+            if (iconified != window->iconified)
+            {
+                window->iconified = iconified;
+
+                if (window->windowIconifyCallback)
+                    window->windowIconifyCallback(window, window->iconified);
+            }
+
             return 0;
         }
 

src/window.c

@@ -1122,6 +1122,22 @@ GLFWAPI void glfwSetWindowFocusCallback(GLFWwindow window, GLFWwindowfocusfun cb
 }
 
 
+//========================================================================
+// Set callback function for window iconification events
+//========================================================================
+
+GLFWAPI void glfwSetWindowIconifyCallback(GLFWwindow window, GLFWwindowiconifyfun cbfun)
+{
+    if (!_glfwInitialized)
+    {
+        _glfwSetError(GLFW_NOT_INITIALIZED);
+        return;
+    }
+
+    window->windowIconifyCallback = cbfun;
+}
+
+
 //========================================================================
 // Poll for new window and input events and close any flagged windows
 //========================================================================

src/x11/x11_window.c

@@ -1272,6 +1272,10 @@ static void processSingleEvent(void)
             }
 
             window->iconified = GL_FALSE;
+
+            if (window->windowIconifyCallback)
+                window->windowIconifyCallback(window, window->iconified);
+
             break;
         }
 
@@ -1286,6 +1290,10 @@ static void processSingleEvent(void)
             }
 
             window->iconified = GL_TRUE;
+
+            if (window->windowIconifyCallback)
+                window->windowIconifyCallback(window, window->iconified);
+
             break;
         }
 

tests/events.c

@@ -193,6 +193,14 @@ static void window_focus_callback(GLFWwindow window, int activated)
            activated ? "activated" : "deactivated");
 }
 
+static void window_iconify_callback(GLFWwindow window, int iconified)
+{
+    printf("%08x at %0.3f: Window was %s\n",
+           counter++,
+           glfwGetTime(),
+           iconified ? "iconified" : "restored");
+}
+
 static void mouse_button_callback(GLFWwindow window, int button, int action)
 {
     const char* name = get_button_name(button);
@@ -299,6 +307,7 @@ int main(void)
     glfwSetWindowCloseCallback(window, window_close_callback);
     glfwSetWindowRefreshCallback(window, window_refresh_callback);
     glfwSetWindowFocusCallback(window, window_focus_callback);
+    glfwSetWindowIconifyCallback(window, window_iconify_callback);
     glfwSetMouseButtonCallback(window, mouse_button_callback);
     glfwSetMousePosCallback(window, mouse_position_callback);
     glfwSetMouseWheelCallback(window, mouse_wheel_callback);