diff --git a/libguac/include/protocol.h b/libguac/include/protocol.h
index 9d87587e..31d6d734 100644
--- a/libguac/include/protocol.h
+++ b/libguac/include/protocol.h
@@ -271,6 +271,40 @@ int guac_send_copy(GUACIO* io,
         const guac_layer* srcl, int srcx, int srcy, int w, int h,
         guac_composite_mode_t mode, const guac_layer* dstl, int dstx, int dsty);
 
+/**
+ * Sends a rect instruction over the given GUACIO connection.
+ *
+ * @param io The GUACIO connection to use.
+ * @param mode The composite mode to use.
+ * @param layer The destination layer.
+ * @param x The X coordinate of the rectangle.
+ * @param y The Y coordinate of the rectangle.
+ * @param width The width of the rectangle.
+ * @param height The height of the rectangle.
+ * @param r The red component of the color of the rectangle.
+ * @param g The green component of the color of the rectangle.
+ * @param b The blue component of the color of the rectangle.
+ * @param a The alpha (transparency) component of the color of the rectangle.
+ * @return Zero on success, non-zero on error.
+ */
+int guac_send_rect(GUACIO* io,
+        guac_composite_mode_t mode, const guac_layer* layer,
+        int x, int y, int width, int height,
+        int r, int g, int b, int a);
+
+/**
+ * Sends a clip instruction over the given GUACIO connection.
+*
+ * @param io The GUACIO connection to use.
+ * @param layer The layer to set the clipping region of.
+ * @param x The X coordinate of the clipping rectangle.
+ * @param y The Y coordinate of the clipping rectangle.
+ * @param width The width of the clipping rectangle.
+ * @param height The height of the clipping rectangle.
+ */
+int guac_send_clip(GUACIO* io, const guac_layer* layer,
+        int x, int y, int width, int height);
+
 /**
  * Sends a png instruction over the given GUACIO connection. The PNG image data
  * given will be automatically base64-encoded for transmission.
diff --git a/libguac/src/protocol.c b/libguac/src/protocol.c
index 487a5872..14d6acb1 100644
--- a/libguac/src/protocol.c
+++ b/libguac/src/protocol.c
@@ -299,6 +299,54 @@ int guac_send_copy(GUACIO* io,
 
 }
 
+int guac_send_rect(GUACIO* io,
+        guac_composite_mode_t mode, const guac_layer* layer,
+        int x, int y, int width, int height,
+        int r, int g, int b, int a) {
+
+    return
+           guac_write_string(io, "rect:")
+        || guac_write_int(io, mode)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, layer->index)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, x)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, y)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, width)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, height)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, r)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, g)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, b)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, a)
+        || guac_write_string(io, ";");
+
+}
+
+int guac_send_clip(GUACIO* io, const guac_layer* layer,
+        int x, int y, int width, int height) {
+
+    return
+           guac_write_string(io, "clip:")
+        || guac_write_int(io, layer->index)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, x)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, y)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, width)
+        || guac_write_string(io, ",")
+        || guac_write_int(io, height)
+        || guac_write_string(io, ";");
+
+}
+
 cairo_status_t __guac_write_png(void* closure, const unsigned char* data, unsigned int length) {
 
     GUACIO* io = (GUACIO*) closure;