X11: Let the language initialize XEvent structs

src/x11_window.c

@@ -215,10 +215,7 @@ static int translateKey(int scancode)
 static void sendEventToWM(_GLFWwindow* window, Atom type,
                           long a, long b, long c, long d, long e)
 {
-    XEvent event;
-    memset(&event, 0, sizeof(event));
-
-    event.type = ClientMessage;
+    XEvent event = { ClientMessage };
     event.xclient.window = window->x11.handle;
     event.xclient.format = 32; // Data is 32-bit longs
     event.xclient.message_type = type;
@@ -946,11 +943,8 @@ static void handleSelectionRequest(XEvent* event)
 {
     const XSelectionRequestEvent* request = &event->xselectionrequest;
 
-    XEvent reply;
-    memset(&reply, 0, sizeof(reply));
-
+    XEvent reply = { SelectionNotify };
     reply.xselection.property = writeTargetToProperty(request);
-    reply.xselection.type = SelectionNotify;
     reply.xselection.display = request->display;
     reply.xselection.requestor = request->requestor;
     reply.xselection.selection = request->selection;
@@ -1647,10 +1641,7 @@ static void processEvent(XEvent *event)
                 }
                 else if (_glfw.x11.xdnd.version >= 2)
                 {
-                    XEvent reply;
-                    memset(&reply, 0, sizeof(reply));
-
-                    reply.type = ClientMessage;
+                    XEvent reply = { ClientMessage };
                     reply.xclient.window = _glfw.x11.xdnd.source;
                     reply.xclient.message_type = _glfw.x11.XdndFinished;
                     reply.xclient.format = 32;
@@ -1683,10 +1674,7 @@ static void processEvent(XEvent *event)
 
                 _glfwInputCursorPos(window, xpos, ypos);
 
-                XEvent reply;
-                memset(&reply, 0, sizeof(reply));
-
-                reply.type = ClientMessage;
+                XEvent reply = { ClientMessage };
                 reply.xclient.window = _glfw.x11.xdnd.source;
                 reply.xclient.message_type = _glfw.x11.XdndStatus;
                 reply.xclient.format = 32;
@@ -1739,10 +1727,7 @@ static void processEvent(XEvent *event)
 
                 if (_glfw.x11.xdnd.version >= 2)
                 {
-                    XEvent reply;
-                    memset(&reply, 0, sizeof(reply));
-
-                    reply.type = ClientMessage;
+                    XEvent reply = { ClientMessage };
                     reply.xclient.window = _glfw.x11.xdnd.source;
                     reply.xclient.message_type = _glfw.x11.XdndFinished;
                     reply.xclient.format = 32;
@@ -2738,10 +2723,7 @@ void _glfwPlatformWaitEventsTimeout(double timeout)
 
 void _glfwPlatformPostEmptyEvent(void)
 {
-    XEvent event;
-
-    memset(&event, 0, sizeof(event));
-    event.type = ClientMessage;
+    XEvent event = { ClientMessage };
     event.xclient.window = _glfw.x11.helperWindowHandle;
     event.xclient.format = 32; // Data is 32-bit longs
     event.xclient.message_type = _glfw.x11.NULL_;