From cf4aa335c60bc259dc7861489f63865d9a9549ec Mon Sep 17 00:00:00 2001
From: Quantum <quantum2048@gmail.com>
Date: Tue, 12 Aug 2014 16:13:43 -0400
Subject: [PATCH] Hid piano during resizing to avoid slowness, and flickering
 on Aero.

---
 include/PianoControl.hpp | 5 ++++-
 src/MainWindow.cpp       | 4 +++-
 src/PianoControl.cpp     | 9 +++++++++
 src/Window.cpp           | 2 +-
 4 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/include/PianoControl.hpp b/include/PianoControl.hpp
index 5b6b09c..07f4632 100644
--- a/include/PianoControl.hpp
+++ b/include/PianoControl.hpp
@@ -35,7 +35,10 @@ public:
     
     virtual void SetKeyText(int key, LPCWSTR text);
     virtual LPCWSTR GetKeyText(int key);
-    
+
+    virtual void DisableDraw();
+    virtual void EnableDraw();
+
     virtual void SetBackground(HBRUSH background) { hBackground = background; }
     virtual HBRUSH GetBackground() { return hBackground; }
     
diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index 130cccc..578e0d3 100644
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -103,7 +103,7 @@ static LPWSTR keychars =
     L"\"-\0" // D5
     L"]\0" // D#5
     L"=\x21b5\0" // E5
-    L"\x2190\0" // F5
+    L"\x2190\\\0" // F5
 ;
 
 static WORD frequency[] = {
@@ -740,9 +740,11 @@ LRESULT MainWindow::HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
         return 0;
     case WM_ENTERSIZEMOVE:
         SetWindowLongPtr(m_hwnd, GWL_EXSTYLE, GetWindowLongPtr(m_hwnd, GWL_EXSTYLE) | WS_EX_COMPOSITED);
+        piano->DisableDraw();
         return 0;
     case WM_EXITSIZEMOVE:
         SetWindowLongPtr(m_hwnd, GWL_EXSTYLE, GetWindowLongPtr(m_hwnd, GWL_EXSTYLE) & ~WS_EX_COMPOSITED);
+        piano->EnableDraw();
         return 0;
     case MMWM_NOTEID: {
         int note = wParam + 54;
diff --git a/src/PianoControl.cpp b/src/PianoControl.cpp
index bdcb5e3..e895306 100644
--- a/src/PianoControl.cpp
+++ b/src/PianoControl.cpp
@@ -495,6 +495,15 @@ void PianoControl::OnPaint()
     EndPaint(m_hwnd, &ps);
 }
 
+void PianoControl::DisableDraw() {
+    SendMessage(m_hwnd, WM_SETREDRAW, FALSE, 0);
+}
+
+void PianoControl::EnableDraw() {
+    SendMessage(m_hwnd, WM_SETREDRAW, TRUE, 0);
+    RedrawWindow(m_hwnd, NULL, NULL, RDW_FRAME | RDW_INVALIDATE);
+}
+
 LRESULT PianoControl::HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
 {
     switch (uMsg) {
diff --git a/src/Window.cpp b/src/Window.cpp
index 343817c..81a9663 100644
--- a/src/Window.cpp
+++ b/src/Window.cpp
@@ -25,7 +25,7 @@ void Window::Register()
     wc.hInstance     = GetInstance();
     wc.hIcon         = GetIcon();
     wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
-    wc.hbrBackground = CreateSolidBrush(RGB(0xF0, 0xF0, 0xF0));
+    wc.hbrBackground = (HBRUSH) (COLOR_3DFACE + 1);
     wc.lpszMenuName  = NULL;
     wc.lpszClassName = ClassName();