diff --git a/include/Mw/Core.h b/include/Mw/Core.h
index c8866e2..28df4d4 100644
--- a/include/Mw/Core.h
+++ b/include/Mw/Core.h
@@ -330,6 +330,13 @@ MWDECL MwWidget* MwGetChildren(MwWidget handle);
  */
 MWDECL void MwGetCursorCoord(MwWidget handle, MwPoint* point);
 
+/*!
+ * @brief Gets the screen size
+ * @param handle Widget
+ * @param rect Rectangle
+ */
+MWDECL void MwGetScreenSize(MwWidget handle, MwRect* rect);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/Mw/LowLevel.h b/include/Mw/LowLevel.h
index a2e55df..cb9c1e6 100644
--- a/include/Mw/LowLevel.h
+++ b/include/Mw/LowLevel.h
@@ -193,6 +193,7 @@ MWDECL void (*MwLLSetClipboard)(MwLL handle, const char* text);
 MWDECL char* (*MwLLGetClipboard)(MwLL handle);
 
 MWDECL void (*MwLLGetCursorCoord)(MwLL handle, MwPoint* point);
+MWDECL void (*MwLLGetScreenSize)(MwLL handle, MwRect* rect);
 
 #ifdef __cplusplus
 }
diff --git a/src/backend/call.c b/src/backend/call.c
index f29e48d..bace30c 100644
--- a/src/backend/call.c
+++ b/src/backend/call.c
@@ -54,6 +54,7 @@
 		MwLLGetClipboard = MwLLGetClipboardImpl; \
 \
 		MwLLGetCursorCoord = MwLLGetCursorCoordImpl; \
+		MwLLGetScreenSize  = MwLLGetScreenSizeImpl; \
 \
 		return 0; \
 	}
diff --git a/src/backend/gdi.c b/src/backend/gdi.c
index 426d21e..f466dfd 100644
--- a/src/backend/gdi.c
+++ b/src/backend/gdi.c
@@ -727,6 +727,15 @@ static void MwLLGetCursorCoordImpl(MwLL handle, MwPoint* point) {
 	point->y = p.y;
 }
 
+static void MwLLGetScreenSizeImpl(MwLL handle, MwRect* rect) {
+	RECT rc;
+	GetClientRect(GetDesktopWindow(), &rc);
+
+	rect->x = rect->y = 0;
+	rect->width	  = rc.right - rc.left;
+	rect->height	  = rc.bottom - rc.top;
+}
+
 static void MwLLBeginStateChangeImpl(MwLL handle) {
 	(void)handle;
 }
diff --git a/src/backend/x11.c b/src/backend/x11.c
index 3fdd775..f75adfb 100644
--- a/src/backend/x11.c
+++ b/src/backend/x11.c
@@ -1001,6 +1001,15 @@ static void MwLLGetCursorCoordImpl(MwLL handle, MwPoint* point) {
 	point->y = ry;
 }
 
+static void MwLLGetScreenSizeImpl(MwLL handle, MwRect* rect) {
+	XWindowAttributes xwa;
+	XGetWindowAttributes(handle->x11.display, handle->x11.window, &xwa);
+
+	rect->x = rect->y = 0;
+	rect->width	  = xwa.width;
+	rect->height	  = xwa.height;
+}
+
 static void MwLLBeginStateChangeImpl(MwLL handle) {
 	MwLLShow(handle, 0);
 }
diff --git a/src/core.c b/src/core.c
index 2746215..85c7b5c 100644
--- a/src/core.c
+++ b/src/core.c
@@ -738,3 +738,7 @@ MwWidget* MwGetChildren(MwWidget handle) {
 void MwGetCursorCoord(MwWidget handle, MwPoint* point) {
 	MwLLGetCursorCoord(handle->lowlevel, point);
 }
+
+void MwGetScreenSize(MwWidget handle, MwRect* rect) {
+	MwLLGetScreenSize(handle->lowlevel, rect);
+}
diff --git a/src/lowlevel.c b/src/lowlevel.c
index cef29f3..70dd50f 100644
--- a/src/lowlevel.c
+++ b/src/lowlevel.c
@@ -49,6 +49,7 @@ void (*MwLLSetClipboard)(MwLL handle, const char* text);
 char* (*MwLLGetClipboard)(MwLL handle);
 
 void (*MwLLGetCursorCoord)(MwLL handle, MwPoint* point);
+void (*MwLLGetScreenSize)(MwLL handle, MwRect* rect);
 
 void MwLLCreateCommon(MwLL handle) {
 	handle->common.handler = malloc(sizeof(*handle->common.handler));