Removed glfwIsWindow.

examples/boing.c

@@ -43,6 +43,7 @@
 void init( void );
 void display( void );
 void reshape( GLFWwindow window, int w, int h );
+int window_close_callback(GLFWwindow window);
 void DrawBoingBall( void );
 void BounceBall( double dt );
 void DrawBoingBallBand( GLfloat long_lo, GLfloat long_hi );
@@ -89,6 +90,7 @@ DRAW_BALL_ENUM drawBallHow;
 double  t;
 double  t_old = 0.f;
 double  dt;
+static GLboolean running = GL_TRUE;
 
 /* Random number generator */
 #ifndef RAND_MAX
@@ -245,6 +247,16 @@ void reshape( GLFWwindow window, int w, int h )
 }
 
 
+/*****************************************************************************
+ * Window close callback
+ *****************************************************************************/
+int window_close_callback(GLFWwindow window)
+{
+    running = GL_FALSE;
+    return GL_TRUE;
+}
+
+
 /*****************************************************************************
  * Draw the Boing ball.
  *
@@ -567,7 +579,6 @@ void DrawGrid( void )
 
 int main( void )
 {
-   int running;
    GLFWwindow window;
 
    /* Init GLFW */
@@ -587,6 +598,7 @@ int main( void )
        exit( EXIT_FAILURE );
    }
 
+   glfwSetWindowCloseCallback( window_close_callback );
    glfwSetWindowSizeCallback( reshape );
    glfwSetInputMode( window, GLFW_STICKY_KEYS, GL_TRUE );
    glfwSwapInterval( 1 );
@@ -610,7 +622,8 @@ int main( void )
        glfwPollEvents();
 
        /* Check if we are still running */
-       running = glfwIsWindow(window) && !glfwGetKey( window, GLFW_KEY_ESCAPE );
+       if (glfwGetKey( window, GLFW_KEY_ESCAPE ))
+           running = GL_FALSE;
    }
    while( running );
 

examples/gears.c

@@ -267,6 +267,14 @@ void reshape( GLFWwindow window, int width, int height )
 }
 
 
+/* close callback */
+int window_close_callback(GLFWwindow window)
+{
+    running = 0;
+    return GL_TRUE;
+}
+
+
 /* program & OpenGL initialization */
 static void init(int argc, char *argv[])
 {
@@ -346,6 +354,7 @@ int main(int argc, char *argv[])
     init(argc, argv);
 
     // Set callback functions
+    glfwSetWindowCloseCallback(window_close_callback);
     glfwSetWindowSizeCallback( reshape );
     glfwSetKeyCallback( key );
 
@@ -361,12 +370,6 @@ int main(int argc, char *argv[])
         // Swap buffers
         glfwSwapBuffers();
         glfwPollEvents();
-
-        // Was the window closed?
-        if( !glfwIsWindow( window ) )
-        {
-            running = 0;
-        }
     }
 
     // Terminate GLFW

examples/splitview.c

@@ -42,6 +42,9 @@ static int rot_x = 0, rot_y = 0, rot_z = 0;
 // Do redraw?
 static int do_redraw = 1;
 
+// Keep running?
+static GLboolean running = GL_TRUE;
+
 
 //========================================================================
 // Draw a solid torus (use a display list for the model)
@@ -435,6 +438,17 @@ static void mouseButtonFun(GLFWwindow window, int button, int action)
 }
 
 
+//========================================================================
+// Window close callback function
+//========================================================================
+
+static int windowCloseFun(GLFWwindow window)
+{
+    running = GL_FALSE;
+    return GL_TRUE;
+}
+
+
 //========================================================================
 // main
 //========================================================================
@@ -470,6 +484,7 @@ int main(void)
     glfwSetInputMode(window, GLFW_CURSOR_MODE, GLFW_CURSOR_NORMAL);
 
     // Set callback functions
+    glfwSetWindowCloseCallback(windowCloseFun);
     glfwSetWindowSizeCallback(windowSizeFun);
     glfwSetWindowRefreshCallback(windowRefreshFun);
     glfwSetCursorPosCallback(cursorPosFun);
@@ -493,9 +508,11 @@ int main(void)
         // Wait for new events
         glfwWaitEvents();
 
+        if (glfwGetKey(window, GLFW_KEY_ESCAPE))
+            running = GL_FALSE;
+
     } // Check if the ESC key was pressed or the window was closed
-    while (glfwIsWindow(window) &&
-           glfwGetKey(window, GLFW_KEY_ESCAPE) != GLFW_PRESS);
+    while (running);
 
     // Close OpenGL window and terminate GLFW
     glfwTerminate();

examples/triangle.c

@@ -10,6 +10,14 @@
 #define GLFW_INCLUDE_GLU
 #include <GL/glfw3.h>
 
+static GLboolean running = GL_TRUE;
+
+static int window_close_callback(GLFWwindow window)
+{
+    running = GL_FALSE;
+    return GL_TRUE;
+}
+
 int main(void)
 {
     int width, height, x;
@@ -36,6 +44,8 @@ int main(void)
     // Enable vertical sync (on cards that support it)
     glfwSwapInterval(1);
 
+    glfwSetWindowCloseCallback(window_close_callback);
+
     do
     {
         double t = glfwGetTime();
@@ -82,9 +92,11 @@ int main(void)
         glfwSwapBuffers();
         glfwPollEvents();
 
+        if (glfwGetKey(window, GLFW_KEY_ESCAPE))
+            running = GL_FALSE;
+
     } // Check if the ESC key was pressed or the window was closed
-    while (glfwIsWindow(window) &&
-           glfwGetKey(window, GLFW_KEY_ESCAPE) != GLFW_PRESS);
+    while (running);
 
     // Close OpenGL window and terminate GLFW
     glfwTerminate();

examples/wave.c

@@ -372,6 +372,17 @@ void window_resize_callback(GLFWwindow window, int width, int height)
 }
 
 
+//========================================================================
+// Callback function for window close events
+//========================================================================
+
+static int window_close_callback(GLFWwindow window)
+{
+    running = GL_FALSE;
+    return GL_TRUE;
+}
+
+
 //========================================================================
 // main
 //========================================================================
@@ -401,6 +412,7 @@ int main(int argc, char* argv[])
     glfwSetInputMode(window, GLFW_KEY_REPEAT, GL_TRUE);
 
     // Window resize handler
+    glfwSetWindowCloseCallback(window_close_callback);
     glfwSetWindowSizeCallback(window_resize_callback);
     glfwSetMouseButtonCallback(mouse_button_callback);
     glfwSetCursorPosCallback(cursor_position_callback);
@@ -441,9 +453,6 @@ int main(int argc, char* argv[])
         draw_scene();
 
         glfwPollEvents();
-
-        // Still running?
-        running = running && glfwIsWindow(window);
     }
 
     exit(EXIT_SUCCESS);

include/GL/glfw3.h

@@ -529,7 +529,6 @@ GLFWAPI void glfwSetGammaRamp(const GLFWgammaramp* ramp);
 /* Window handling */
 GLFWAPI GLFWwindow glfwOpenWindow(int width, int height, int mode, const char* title, GLFWwindow share);
 GLFWAPI void glfwOpenWindowHint(int target, int hint);
-GLFWAPI int  glfwIsWindow(GLFWwindow window);
 GLFWAPI void glfwCloseWindow(GLFWwindow window);
 GLFWAPI void glfwSetWindowTitle(GLFWwindow, const char* title);
 GLFWAPI void glfwGetWindowSize(GLFWwindow, int* width, int* height);

readme.html

@@ -268,7 +268,6 @@ version of GLFW.</p>
 <h3>v3.0</h3>
 <ul>
   <li>Added <code>GLFWwindow</code> window handle type and updated window-related functions and callbacks to take a window handle</li>
-  <li>Added <code>glfwIsWindow</code> function for verifying that a given window handle is (still) valid</li>
   <li>Added <code>glfwMakeContextCurrent</code> function for making the context of the specified window current</li>
   <li>Added <code>glfwGetError</code> and <code>glfwErrorString</code> error reporting functions and a number of error tokens</li>
   <li>Added <code>glfwSetErrorCallback</code> function and <code>GLFWerrorfun</code> type for receiving more specific and/or nested errors</li>

src/window.c

@@ -350,34 +350,6 @@ GLFWAPI GLFWwindow glfwOpenWindow(int width, int height,
 }
 
 
-//========================================================================
-// Returns GL_TRUE if the specified window handle is an actual window
-//========================================================================
-
-GLFWAPI int glfwIsWindow(GLFWwindow handle)
-{
-    _GLFWwindow* entry;
-    _GLFWwindow* window = (_GLFWwindow*) handle;
-
-    if (!_glfwInitialized)
-    {
-        _glfwSetError(GLFW_NOT_INITIALIZED, NULL);
-        return GL_FALSE;
-    }
-
-    if (window == NULL)
-        return GL_FALSE;
-
-    for (entry = _glfwLibrary.windowListHead;  entry;  entry = entry->next)
-    {
-        if (entry == window)
-            return GL_TRUE;
-    }
-
-    return GL_FALSE;
-}
-
-
 //========================================================================
 // Set hints for opening the window
 //========================================================================

tests/accuracy.c

@@ -79,7 +79,7 @@ int main(void)
     glfwSetWindowSizeCallback(window_size_callback);
     glfwSwapInterval(1);
 
-    while (glfwIsWindow(window))
+    while (glfwGetCurrentContext())
     {
         glClear(GL_COLOR_BUFFER_BIT);
 

tests/clipboard.c

@@ -136,7 +136,7 @@ int main(int argc, char** argv)
 
     glClearColor(0.5f, 0.5f, 0.5f, 0);
 
-    while (glfwIsWindow(window))
+    while (glfwGetCurrentContext())
     {
         glClear(GL_COLOR_BUFFER_BIT);
 

tests/events.c

@@ -385,7 +385,7 @@ int main(void)
 
     printf("Main loop starting\n");
 
-    while (glfwIsWindow(window) == GL_TRUE)
+    while (glfwGetCurrentContext())
         glfwWaitEvents();
 
     glfwTerminate();

tests/fsaa.c

@@ -127,7 +127,7 @@ int main(int argc, char** argv)
     gluOrtho2D(0.f, 1.f, 0.f, 0.5f);
     glMatrixMode(GL_MODELVIEW);
 
-    while (glfwIsWindow(window))
+    while (glfwGetCurrentContext())
     {
         GLfloat time = (GLfloat) glfwGetTime();
 

tests/fsfocus.c

@@ -68,6 +68,7 @@ static void window_key_callback(GLFWwindow window, int key, int action)
 static int window_close_callback(GLFWwindow window)
 {
     printf("%0.3f: User closed window\n", glfwGetTime());
+    running = GL_FALSE;
     return GL_TRUE;
 }
 
@@ -97,7 +98,7 @@ int main(void)
     glfwSetKeyCallback(window_key_callback);
     glfwSetWindowCloseCallback(window_close_callback);
 
-    while (running && glfwIsWindow(window) == GL_TRUE)
+    while (running)
     {
         glClear(GL_COLOR_BUFFER_BIT);
         glfwSwapBuffers();

tests/gamma.c

@@ -151,7 +151,7 @@ int main(int argc, char** argv)
 
     glClearColor(0.5f, 0.5f, 0.5f, 0);
 
-    while (glfwIsWindow(window))
+    while (glfwGetCurrentContext())
     {
         glClear(GL_COLOR_BUFFER_BIT);
 

tests/iconify.c

@@ -126,7 +126,7 @@ int main(int argc, char** argv)
 
     glEnable(GL_SCISSOR_TEST);
 
-    while (glfwIsWindow(window))
+    while (glfwGetCurrentContext())
     {
         int width, height;
 

tests/joysticks.c

@@ -44,7 +44,6 @@ typedef struct Joystick
 } Joystick;
 
 static Joystick joysticks[GLFW_JOYSTICK_LAST - GLFW_JOYSTICK_1 + 1];
-
 static int joystick_count = 0;
 
 static void window_size_callback(GLFWwindow window, int width, int height)
@@ -199,7 +198,7 @@ int main(void)
     glfwSetWindowSizeCallback(window_size_callback);
     glfwSwapInterval(1);
 
-    while (glfwIsWindow(window))
+    while (glfwGetCurrentContext())
     {
         glClear(GL_COLOR_BUFFER_BIT);
 

tests/peter.c

@@ -127,7 +127,7 @@ int main(void)
 
     glClearColor(0.f, 0.f, 0.f, 0.f);
 
-    while (glfwIsWindow(window_handle))
+    while (glfwGetCurrentContext())
     {
         glClear(GL_COLOR_BUFFER_BIT);
 

tests/sharing.c

@@ -36,12 +36,30 @@
 #define WIDTH  400
 #define HEIGHT 400
 
+static GLFWwindow windows[2];
+
 static void key_callback(GLFWwindow window, int key, int action)
 {
     if (action == GLFW_PRESS && key == GLFW_KEY_ESCAPE)
         glfwCloseWindow(window);
 }
 
+static int window_close_callback(GLFWwindow window)
+{
+    int i;
+
+    for (i = 0;  i < 2;  i++)
+    {
+        if (windows[i] == window)
+        {
+            windows[i] = NULL;
+            break;
+        }
+    }
+
+    return GL_TRUE;
+}
+
 static GLFWwindow open_window(const char* title, GLFWwindow share)
 {
     GLFWwindow window;
@@ -50,6 +68,7 @@ static GLFWwindow open_window(const char* title, GLFWwindow share)
     if (!window)
         return NULL;
 
+    glfwSetWindowCloseCallback(window_close_callback);
     glfwSetKeyCallback(key_callback);
     glfwSwapInterval(1);
 
@@ -112,7 +131,6 @@ static void draw_quad(GLuint texture)
 
 int main(int argc, char** argv)
 {
-    GLFWwindow windows[2];
     GLuint texture;
     int x, y;
 
@@ -150,7 +168,7 @@ int main(int argc, char** argv)
     glfwGetWindowPos(windows[0], &x, &y);
     glfwSetWindowPos(windows[1], x + WIDTH + 50, y);
 
-    while (glfwIsWindow(windows[0]) && glfwIsWindow(windows[1]))
+    while (windows[0] && windows[1])
     {
         glfwMakeContextCurrent(windows[0]);
         draw_quad(texture);

tests/tearing.c

@@ -87,7 +87,7 @@ int main(void)
     glOrtho(-1.f, 1.f, -1.f, 1.f, 1.f, -1.f);
     glMatrixMode(GL_MODELVIEW);
 
-    while (glfwIsWindow(window) == GL_TRUE)
+    while (glfwGetCurrentContext())
     {
         glClear(GL_COLOR_BUFFER_BIT);
 

tests/title.c

@@ -58,7 +58,7 @@ int main(void)
 
     glfwSetWindowSizeCallback(window_size_callback);
 
-    while (glfwIsWindow(window) == GL_TRUE)
+    while (glfwGetCurrentContext())
     {
         glClear(GL_COLOR_BUFFER_BIT);
         glfwSwapBuffers();

tests/windows.c

@@ -32,6 +32,14 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+static GLboolean running = GL_TRUE;
+
+static int window_close_callback(GLFWwindow window)
+{
+    running = GL_FALSE;
+    return GL_TRUE;
+}
+
 static const char* titles[] =
 {
     "Foo",
@@ -43,7 +51,6 @@ static const char* titles[] =
 int main(void)
 {
     int i;
-    GLboolean running = GL_TRUE;
     GLFWwindow windows[4];
 
     if (!glfwInit())
@@ -53,6 +60,8 @@ int main(void)
         exit(EXIT_FAILURE);
     }
 
+    glfwSetWindowCloseCallback(window_close_callback);
+
     for (i = 0;  i < 4;  i++)
     {
         windows[i] = glfwOpenWindow(200, 200, GLFW_WINDOWED, titles[i], NULL);
@@ -82,12 +91,6 @@ int main(void)
         }
 
         glfwPollEvents();
-
-        for (i = 0;  i < 4;  i++)
-        {
-            if (!glfwIsWindow(windows[i]))
-                running = GL_FALSE;
-        }
     }
 
     glfwTerminate();