diff --git a/imgui-sys/src/lib.rs b/imgui-sys/src/lib.rs
index fe87031..108b4e8 100644
--- a/imgui-sys/src/lib.rs
+++ b/imgui-sys/src/lib.rs
@@ -321,6 +321,12 @@ impl ImVec2 {
             y: y as c_float,
         }
     }
+    pub fn zero() -> ImVec2 {
+        ImVec2 {
+            x: 0.0 as c_float,
+            y: 0.0 as c_float,
+        }
+    }
 }
 
 impl From<[f32; 2]> for ImVec2 {
diff --git a/src/lib.rs b/src/lib.rs
index 2863c11..c38281e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -478,6 +478,9 @@ impl<'ui> Ui<'ui> {
             imgui_sys::igBulletText(fmt_ptr(), text.as_ptr());
         }
     }
+    pub fn button<'p>(&self, label: ImStr<'p>, size: ImVec2) -> bool {
+        unsafe { imgui_sys::igButton(label.as_ptr(), size) }
+    }
     pub fn small_button<'p>(&self, label: ImStr<'p>) -> bool {
         unsafe { imgui_sys::igSmallButton(label.as_ptr()) }
     }
@@ -616,6 +619,9 @@ impl<'ui> Ui<'ui> {
             unsafe { imgui_sys::igEndPopup() };
         }
     }
+    pub fn close_current_popup(&self) {
+        unsafe { imgui_sys::igCloseCurrentPopup() };
+    }
 }
 
 // Widgets: Combos