diff --git a/examples/basic/messagebox.c b/examples/basic/messagebox.c
index 50481fd..0a8f1cc 100644
--- a/examples/basic/messagebox.c
+++ b/examples/basic/messagebox.c
@@ -8,7 +8,7 @@ void ok(MwWidget handle, void* user, void* call) {
 }
 
 void spawn(MwWidget handle, void* user, void* call) {
-	MwWidget mb = MwMessageBox(handle, "news has arrived!", "title", MwMB_ICONNEWS | MwMB_BUTTONOK);
+	MwWidget mb = MwMessageBox(user, "news has arrived!", "title", MwMB_ICONNEWS | MwMB_BUTTONOK);
 
 	(void)handle;
 	(void)call;
diff --git a/include/Mw/Core.h b/include/Mw/Core.h
index 226d5ad..37b4f40 100644
--- a/include/Mw/Core.h
+++ b/include/Mw/Core.h
@@ -300,6 +300,13 @@ MWDECL MwWidget MwGetParent(MwWidget handle);
  */
 MWDECL void MwShow(MwWidget handle, int toggle);
 
+/*!
+ * @brief Reparents widget
+ * @param handle Widget
+ * @param new_parent New parent
+ */
+MWDECL void MwReparent(MwWidget handle, MwWidget new_parent);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/core.c b/src/core.c
index e289486..f0a47bd 100644
--- a/src/core.c
+++ b/src/core.c
@@ -271,9 +271,15 @@ static void clean_destroy_queue(MwWidget handle) {
 }
 
 int MwStep(MwWidget handle) {
-	int i;
+	int	  i;
+	MwWidget* widgets = NULL;
 	if(setjmp(handle->before_step)) return 0;
-	for(i = 0; i < arrlen(handle->children); i++) MwStep(handle->children[i]);
+	for(i = 0; i < arrlen(handle->children); i++) {
+		arrput(widgets, handle->children[i]);
+	}
+	for(i = 0; i < arrlen(widgets); i++) MwStep(widgets[i]);
+
+	arrfree(widgets);
 
 	handle->prop_event = 0;
 	if(handle->lowlevel != NULL && MwLLPending(handle->lowlevel)) MwLLNextEvent(handle->lowlevel);
@@ -639,3 +645,18 @@ int MwLibraryInit(void) {
 void MwShow(MwWidget handle, int toggle) {
 	MwLLShow(handle->lowlevel, toggle);
 }
+
+void MwReparent(MwWidget handle, MwWidget new_parent) {
+	if(handle->parent != NULL) {
+		int i;
+		for(i = 0; i < arrlen(handle->parent->children); i++) {
+			if(handle->parent->children[i] == handle) {
+				arrdel(handle->parent->children, i);
+				break;
+			}
+		}
+	}
+
+	handle->parent = new_parent;
+	arrput(new_parent->children, handle);
+}
diff --git a/src/dialog/colorpicker.c b/src/dialog/colorpicker.c
index ff5c383..c050db7 100644
--- a/src/dialog/colorpicker.c
+++ b/src/dialog/colorpicker.c
@@ -339,29 +339,28 @@ color_picker_t* color_picker_setup(MwWidget parent, int w, int h) {
 }
 
 MwWidget MwColorPicker(MwWidget handle, const char* title) {
-	MwPoint		p;
 	color_picker_t* wheel;
 	MwWidget	window;
 	MwSizeHints	sh;
-	int		ww = handle == NULL ? 0 : MwGetInteger(handle, MwNwidth);
-	int		wh = handle == NULL ? 0 : MwGetInteger(handle, MwNheight);
 	int		wx;
 	int		wy;
 
-	p.x = (ww - WIN_SIZE) / 2;
-	p.y = (wh - WIN_SIZE) / 2;
-
-	wx = wy = 0;
-	if(handle == NULL) wx = wy = MwDEFAULT;
+	if(handle == NULL) {
+		wx = wy = MwDEFAULT;
+	} else {
+		wx = MwGetInteger(handle, MwNx) + (MwGetInteger(handle, MwNwidth) - WIN_SIZE) / 2;
+		wy = MwGetInteger(handle, MwNy) + (MwGetInteger(handle, MwNheight) - WIN_SIZE) / 2;
+	}
 
 	sh.min_width = sh.max_width = WIN_SIZE;
 	sh.min_height = sh.max_height = WIN_SIZE;
 
-	window = MwVaCreateWidget(MwWindowClass, "main", handle, wx, wy,
+	window = MwVaCreateWidget(MwWindowClass, "main", NULL, wx, wy,
 				  WIN_SIZE, WIN_SIZE,
 				  MwNtitle, title,
 				  MwNsizeHints, &sh,
 				  NULL);
+	if(handle != NULL) MwReparent(window, handle);
 
 	wheel = color_picker_setup(window, WIN_SIZE, WIN_SIZE);
 
@@ -370,7 +369,6 @@ MwWidget MwColorPicker(MwWidget handle, const char* title) {
 	MwAddTickList(window);
 
 	MwLLBeginStateChange(window->lowlevel);
-	if(handle != NULL) MwLLDetach(window->lowlevel, &p);
 	MwLLMakePopup(window->lowlevel, handle == NULL ? NULL : handle->lowlevel);
 	MwLLEndStateChange(window->lowlevel);
 
diff --git a/src/dialog/filechooser.c b/src/dialog/filechooser.c
index 519e956..33f35d7 100644
--- a/src/dialog/filechooser.c
+++ b/src/dialog/filechooser.c
@@ -458,9 +458,6 @@ static void scan(MwWidget handle, const char* path, int record) {
 
 MwWidget MwFileChooser(MwWidget handle, const char* title) {
 	MwWidget       window;
-	MwPoint	       p;
-	int	       ww = handle == NULL ? 0 : MwGetInteger(handle, MwNwidth);
-	int	       wh = handle == NULL ? 0 : MwGetInteger(handle, MwNheight);
 	int	       w, h;
 	filechooser_t* fc = malloc(sizeof(*fc));
 	char*	       path;
@@ -473,15 +470,17 @@ MwWidget MwFileChooser(MwWidget handle, const char* title) {
 	w = 700;
 	h = w * 2 / 3;
 
-	p.x = (ww - w) / 2;
-	p.y = (wh - h) / 2;
+	if(handle == NULL) {
+		wx = wy = MwDEFAULT;
+	} else {
+		wx = MwGetInteger(handle, MwNx) + (MwGetInteger(handle, MwNwidth) - w) / 2;
+		wy = MwGetInteger(handle, MwNy) + (MwGetInteger(handle, MwNheight) - h) / 2;
+	}
 
-	wx = wy = 0;
-	if(handle == NULL) wx = wy = MwDEFAULT;
-
-	window = MwVaCreateWidget(MwWindowClass, "filechooser", handle, wx, wy, w, h,
+	window = MwVaCreateWidget(MwWindowClass, "filechooser", NULL, wx, wy, w, h,
 				  MwNtitle, title,
 				  NULL);
+	if(handle != NULL) MwReparent(window, handle);
 
 	fc->history_seek = 0;
 
@@ -508,7 +507,6 @@ MwWidget MwFileChooser(MwWidget handle, const char* title) {
 	free(path);
 
 	MwLLBeginStateChange(window->lowlevel);
-	if(handle != NULL) MwLLDetach(window->lowlevel, &p);
 	MwLLMakePopup(window->lowlevel, handle == NULL ? NULL : handle->lowlevel);
 	MwLLEndStateChange(window->lowlevel);
 
diff --git a/src/dialog/messagebox.c b/src/dialog/messagebox.c
index e9c2aba..bdae35c 100644
--- a/src/dialog/messagebox.c
+++ b/src/dialog/messagebox.c
@@ -27,32 +27,32 @@ static void messagebox_close(MwWidget handle, void* user, void* call) {
 
 MwWidget MwMessageBox(MwWidget handle, const char* text, const char* title, unsigned int flag) {
 	MwWidget    window;
-	MwPoint	    p;
 	int	    w, h;
 	int	    left = 8;
 	int	    th;
 	int	    x = 0;
 	int	    wx;
 	int	    wy;
-	int	    ww = handle == NULL ? 0 : MwGetInteger(handle, MwNwidth);
-	int	    wh = handle == NULL ? 0 : MwGetInteger(handle, MwNheight);
 	MwSizeHints sh;
 
 	w = 512;
 	h = 32 * 4;
 
-	wx = wy = 0;
-	if(handle == NULL) wx = wy = MwDEFAULT;
+	if(handle == NULL) {
+		wx = wy = MwDEFAULT;
+	} else {
+		wx = MwGetInteger(handle, MwNx) + (MwGetInteger(handle, MwNwidth) - w) / 2;
+		wy = MwGetInteger(handle, MwNy) + (MwGetInteger(handle, MwNheight) - h) / 2;
+	}
 
 	sh.min_width = sh.max_width = w;
 	sh.min_height = sh.max_height = h;
 
-	p.x    = (ww - w) / 2;
-	p.y    = (wh - h) / 2;
-	window = MwVaCreateWidget(MwWindowClass, "messagebox", handle, wx, wy, w, h,
+	window = MwVaCreateWidget(MwWindowClass, "messagebox", NULL, wx, wy, w, h,
 				  MwNtitle, title,
 				  MwNsizeHints, &sh,
 				  NULL);
+	if(handle != NULL) MwReparent(window, handle);
 
 	window->opaque = NULL;
 
@@ -110,7 +110,6 @@ MwWidget MwMessageBox(MwWidget handle, const char* text, const char* title, unsi
 			       NULL);
 
 	MwLLBeginStateChange(window->lowlevel);
-	if(handle != NULL) MwLLDetach(window->lowlevel, &p);
 	MwLLMakePopup(window->lowlevel, handle == NULL ? NULL : handle->lowlevel);
 	MwLLEndStateChange(window->lowlevel);