diff --git a/console/commands.c b/console/commands.c
index d24bfa16b..539d33512 100644
--- a/console/commands.c
+++ b/console/commands.c
@@ -2376,12 +2376,12 @@ static int lpc_cmd_rtp_no_xmit_on_audio_mute(LinphoneCore *lc, char *args)
 #ifdef VIDEO_ENABLED
 static int _lpc_cmd_video_window(LinphoneCore *lc, char *args, bool_t is_preview){
 	char subcommand[64];
-	int a,b;
+	long a,b;
 	int err;
 	VideoParams *params=is_preview ? &lpc_preview_params : &lpc_video_params;
 
 	if (!args) return 0;
-	err=sscanf(args,"%63s %i %i",subcommand,&a,&b);
+	err=sscanf(args,"%63s %ld %ld",subcommand,&a,&b);
 	if (err>=1){
 		if (strcmp(subcommand,"pos")==0){
 			if (err<3) return 0;
@@ -2403,15 +2403,15 @@ static int _lpc_cmd_video_window(LinphoneCore *lc, char *args, bool_t is_preview
 			if (is_preview) linphone_core_enable_video_preview (lc,FALSE);
 		}else if (strcmp(subcommand,"id")==0){
 			if (err == 1){
-				linphonec_out("vwindow id: 0x%x\n",is_preview ? linphone_core_get_native_preview_window_id (lc) :
+				linphonec_out("vwindow id: 0x%p\n",is_preview ? linphone_core_get_native_preview_window_id (lc) :
 				              linphone_core_get_native_video_window_id (lc));
 				return 1;
 			} else if (err != 2) return 0;
-			params->wid=a;
+			params->wid=(void *)a;
 			if (is_preview)
-				linphone_core_set_native_preview_window_id (lc,a);
+				linphone_core_set_native_preview_window_id(lc, (void *)a);
 			else
-				linphone_core_set_native_video_window_id(lc,a);
+				linphone_core_set_native_video_window_id(lc, (void *)a);
 		}else if (is_preview==TRUE){
 			if (strcmp(subcommand,"integrated")==0){
 				linphone_core_use_preview_window (lc,FALSE);
diff --git a/console/linphonec.c b/console/linphonec.c
index 78dd1e019..252a234d6 100644
--- a/console/linphonec.c
+++ b/console/linphonec.c
@@ -164,7 +164,7 @@ static char zrtpsecrets[PATH_MAX];
 static char usr_certificates_path[PATH_MAX];
 static const char *factory_configfile_name=NULL;
 static char *sip_addr_to_call = NULL; /* for autocall */
-static int window_id = 0; /* 0=standalone window, or window id for embedding video */
+static void *window_id = NULL; /* NULL=standalone window, or window id for embedding video */
 #if !defined(_WIN32_WCE)
 static ortp_pipe_t client_sock=ORTP_PIPE_INVALID;
 #endif /*_WIN32_WCE*/
@@ -759,9 +759,9 @@ linphonec_init(int argc, char **argv)
 	linphone_core_set_user_certificates_path(linphonec,usr_certificates_path);
 	linphone_core_enable_video_capture(linphonec, vcap_enabled);
 	linphone_core_enable_video_display(linphonec, display_enabled);
-	if (display_enabled && window_id != 0)
+	if (display_enabled && (window_id != NULL))
 	{
-		printf("Setting window_id: 0x%x\n", window_id);
+		printf("Setting window_id: 0x%p\n", window_id);
 		linphone_core_set_native_video_window_id(linphonec,window_id);
 	}
 
@@ -985,11 +985,12 @@ static void x11_apply_video_params(VideoParams *params, Window window){
 
 
 static void lpc_apply_video_params(){
-	static unsigned long old_wid=0,old_pwid=0;
-	unsigned long wid=linphone_core_get_native_video_window_id (linphonec);
-	unsigned long pwid=linphone_core_get_native_preview_window_id (linphonec);
+	static void *old_wid=NULL;
+	static void *old_pwid=NULL;
+	void *wid=linphone_core_get_native_video_window_id(linphonec);
+	void *pwid=linphone_core_get_native_preview_window_id(linphonec);
 
-	if (wid!=0 && (lpc_video_params.refresh || old_wid!=wid)){
+	if (wid!=NULL && (lpc_video_params.refresh || old_wid!=wid)){
 		lpc_video_params.refresh=FALSE;
 #ifdef HAVE_X11_XLIB_H
 		if (lpc_video_params.wid==0){  // do not manage window if embedded
@@ -1000,11 +1001,11 @@ static void lpc_apply_video_params(){
 #endif
 	}
 	old_wid=wid;
-	if (pwid!=0 && (lpc_preview_params.refresh || old_pwid!=pwid)){
+	if (pwid!=NULL && (lpc_preview_params.refresh || old_pwid!=pwid)){
 		lpc_preview_params.refresh=FALSE;
 #ifdef HAVE_X11_XLIB_H
-		/*printf("wid=%lu pwid=%lu\n",wid,pwid);*/
-		if (lpc_preview_params.wid==0){  // do not manage window if embedded
+		/*printf("wid=%p pwid=%p\n",wid,pwid);*/
+		if (lpc_preview_params.wid==NULL){  // do not manage window if embedded
 			printf("Refreshing\n");
 			x11_apply_video_params(&lpc_preview_params,pwid);
 		}
@@ -1303,7 +1304,7 @@ linphonec_parse_cmdline(int argc, char **argv)
 			arg_num++;
 			if (arg_num < argc) {
 				char *tmp;
-				window_id = strtol( argv[arg_num], &tmp, 0 );
+				window_id = (void *)strtol( argv[arg_num], &tmp, 0 );
 				lpc_video_params.wid = window_id;
 			}
 		}
diff --git a/console/linphonec.h b/console/linphonec.h
index 3265d42ac..23c0ee5a0 100644
--- a/console/linphonec.h
+++ b/console/linphonec.h
@@ -99,7 +99,7 @@ typedef struct {
 
 typedef struct {
 	int x,y,w,h;
-	unsigned long wid;
+	void *wid;
 	bool_t show;
 	bool_t refresh;
 } VideoParams;
diff --git a/gtk/main.c b/gtk/main.c
index 3624d1f88..8bb2c54ec 100644
--- a/gtk/main.c
+++ b/gtk/main.c
@@ -306,7 +306,7 @@ static void linphone_gtk_init_liblinphone(const char *config_file,
 	g_free(user_certificates_dir);
 	linphone_core_enable_video_capture(the_core, TRUE);
 	linphone_core_enable_video_display(the_core, TRUE);
-	linphone_core_set_native_video_window_id(the_core,-1);/*don't create the window*/
+	linphone_core_set_native_video_window_id(the_core,(void *)(unsigned int)-1);/*don't create the window*/
 	if (no_video) {
 		_linphone_gtk_enable_video(FALSE);
 		linphone_gtk_set_ui_config_int("videoselfview",0);
diff --git a/gtk/videowindow.c b/gtk/videowindow.c
index f0a8b2e5b..591fc8655 100644
--- a/gtk/videowindow.c
+++ b/gtk/videowindow.c
@@ -94,13 +94,13 @@ static gboolean drag_drop(GtkWidget *widget, GdkDragContext *drag_context, gint
 	return TRUE;
 }
 
-static unsigned long get_native_handle(GdkWindow *gdkw){
+static void *get_native_handle(GdkWindow *gdkw){
 #ifdef GDK_WINDOWING_X11
-	return (unsigned long)GDK_WINDOW_XID(gdkw);
+	return (void *)GDK_WINDOW_XID(gdkw);
 #elif defined(WIN32)
-	return (unsigned long)GDK_WINDOW_HWND(gdkw);
+	return (void *)GDK_WINDOW_HWND(gdkw);
 #elif defined(__APPLE__)
-	return (unsigned long)gdk_quartz_window_get_nsview(gdkw);
+	return (void *)gdk_quartz_window_get_nsview(gdkw);
 #endif
 	g_warning("No way to get the native handle from gdk window");
 	return 0;
@@ -132,7 +132,7 @@ static gint resize_video_window(LinphoneCall *call){
 
 static void on_video_window_destroy(GtkWidget *w, guint timeout){
 	g_source_remove(timeout);
-	linphone_core_set_native_video_window_id(linphone_gtk_get_core(),(unsigned long)-1);
+	linphone_core_set_native_video_window_id(linphone_gtk_get_core(),(void *)(unsigned long)-1);
 }
 
 static void video_window_set_fullscreen(GtkWidget *w, gboolean val){
@@ -314,7 +314,7 @@ static void on_video_preview_destroyed(GtkWidget *video_preview, GtkWidget *mw){
 	guint timeout_id=GPOINTER_TO_INT(g_object_get_data(G_OBJECT(video_preview),"timeout-id"));
 	g_object_set_data(G_OBJECT(mw),"video_preview",NULL);
 	linphone_core_enable_video_preview(lc,FALSE);
-	linphone_core_set_native_preview_window_id(lc,-1);
+	linphone_core_set_native_preview_window_id(lc,(void *)(unsigned long)-1);
 	g_source_remove(timeout_id);
 }
 
diff --git a/tester/video_tester.c b/tester/video_tester.c
index 8aa57ca05..2fee24c59 100644
--- a/tester/video_tester.c
+++ b/tester/video_tester.c
@@ -38,13 +38,13 @@ extern void *gdk_quartz_window_get_nsview(GdkWindow      *window);
 #include <gdk/gdkkeysyms.h>
 
 
-static unsigned long get_native_handle(GdkWindow *gdkw) {
+static void *get_native_handle(GdkWindow *gdkw) {
 #ifdef GDK_WINDOWING_X11
-	return (unsigned long)GDK_WINDOW_XID(gdkw);
+	return (void *)GDK_WINDOW_XID(gdkw);
 #elif defined(_WIN32)
-	return (unsigned long)GDK_WINDOW_HWND(gdkw);
+	return (void *)GDK_WINDOW_HWND(gdkw);
 #elif defined(__APPLE__)
-	return (unsigned long)gdk_quartz_window_get_nsview(gdkw);
+	return (void *)gdk_quartz_window_get_nsview(gdkw);
 #endif
 	g_warning("No way to get the native handle from gdk window");
 	return 0;