Quick fix for issue #193

Locks window size to 1024x768 on OSX and requests that size on X11 displays.  The X11 window manager can entirely ignore the request so this doesn't fully resolve the issue on OSX.

Samples/shell/src/macosx/ShellMacOSX.cpp

@@ -100,7 +100,7 @@ bool Shell::OpenWindow(const char* name, bool attach_opengl)
 	Rect content_bounds = { 60, 20, 60 + 768, 20 + 1024 };
 
 	OSStatus result = CreateNewWindow(kDocumentWindowClass,
-									  kWindowStandardDocumentAttributes | kWindowStandardHandlerAttribute | kWindowLiveResizeAttribute,
+									  kWindowCloseBoxAttribute | kWindowStandardHandlerAttribute,
 									  &content_bounds,
 									  &window);
 	if (result != noErr)

Samples/shell/src/x11/ShellX11.cpp

@@ -70,6 +70,9 @@ void Shell::Shutdown()
 
 bool Shell::OpenWindow(const char* name, bool attach_opengl)
 {
+	unsigned int width = 1024;
+	unsigned int height = 768;
+
 	display = XOpenDisplay(0);
 	if (display == NULL)
 		return false;
@@ -107,7 +110,7 @@ bool Shell::OpenWindow(const char* name, bool attach_opengl)
 	window = XCreateWindow(display,
 						   RootWindow(display, visual_info->screen),
 						   0, 0,
-						   1024, 768,
+						   width, height,
 						   0,
 						   visual_info->depth,
 						   InputOutput,
@@ -127,6 +130,32 @@ bool Shell::OpenWindow(const char* name, bool attach_opengl)
 								  PointerMotionMask |
 								  StructureNotifyMask);
 
+	// Force the window to remain at the fixed size by asking the window manager nicely, it may choose to ignore us
+	XSizeHints* win_size_hints = XAllocSizeHints();		// Allocate a size hint structure
+	if (win_size_hints == NULL)
+	{
+		fprintf(stderr, "XAllocSizeHints - out of memory\n");
+	}
+	else
+	{
+		// Initialize the structure and specify which hints will be providing
+		win_size_hints->flags = PSize | PMinSize | PMaxSize;
+
+		// Set the sizes we want the window manager to use
+		win_size_hints->base_width = width;
+		win_size_hints->base_height = height;
+		win_size_hints->min_width = width;
+		win_size_hints->min_height = height;
+		win_size_hints->max_width = width;
+		win_size_hints->max_height = height;
+
+		// {ass the size hints to the window manager.
+		XSetWMNormalHints(display, window, win_size_hints);
+
+		// Free the size buffer
+		XFree(win_size_hints);
+	}
+
 	// Set the window title and show the window.
 	XSetStandardProperties(display, window, name, "", None, NULL, 0, NULL);
 	XMapRaised(display, window);
@@ -143,7 +172,6 @@ bool Shell::OpenWindow(const char* name, bool attach_opengl)
 
 	Window root_window;
 	int x, y;
-	unsigned int width, height;
 	unsigned int border_width, depth;
 	XGetGeometry(display, window, &root_window, &x, &y, &width, &height, &border_width, &depth);
 
@@ -157,7 +185,7 @@ bool Shell::OpenWindow(const char* name, bool attach_opengl)
 
 	glMatrixMode(GL_PROJECTION);
 	glLoadIdentity();
-	glOrtho(0, 1024, 768, 0, -1, 1);
+	glOrtho(0, width, height, 0, -1, 1);
 
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();