Fixing line directive codegen for ifs, handling vkey codes

modules/win32_multimedia.core

@@ -137,6 +137,11 @@ StartMultimedia :: (x: S64 = 1280, y: S64 = 720, title: String = "Hello people!"
   Mu.y    = Mu.os.bitmap.size.y
 
 UpdateMultimedia :: (): Bool
+  msg: MSG
+  for PeekMessageW(&msg, Mu.os.window, 0, 0, PM_REMOVE) == 1
+    TranslateMessage(&msg)
+    DispatchMessageW(&msg)
+
   Mu.frame_count += 1
   frame_time := Time() - Mu.time.frame_start
   Mu.time.total += frame_time
@@ -156,18 +161,21 @@ UpdateMultimedia :: (): Bool
   return !Mu.quit
 
 WindowProc :: (hwnd: HWND, msg: UINT, wparam: WPARAM, lparam: LPARAM): LRESULT
+  result: LRESULT
   if msg == WM_DESTROY
     PostQuitMessage(0)
     return 0
   elif msg == WM_KEYDOWN || msg == WM_SYSKEYDOWN
-    key := MapVKToKey(msg)
+    key := MapVKToKey(wparam)
     Mu.key[key].is_down = true
   elif msg == WM_KEYUP || msg == WM_SYSKEYUP
-    key := MapVKToKey(msg)
+    key := MapVKToKey(wparam)
     Mu.key[key].is_down = false
 
 
-  else;; return DefWindowProcW(hwnd, msg, wparam, lparam)
+  else;; result = DefWindowProcW(hwnd, msg, wparam, lparam)
+
+  return result
 
 
 /*#
@@ -244,9 +252,9 @@ el = ""
 for val,map in mapping:
   print(f"  {el}if vk == {map} ;; return Key.{val}")
   el = "el"
-print("  Assert(false, \"Unidentified Virtual Key\")")
+print("  return Key.None")
 */
-MapVKToKey :: (vk: U32): Key
+MapVKToKey :: (vk: WPARAM): Key
   if vk == VK_UP ;; return Key.Up
   elif vk == VK_DOWN ;; return Key.Down
   elif vk == VK_LEFT ;; return Key.Left
@@ -305,5 +313,5 @@ MapVKToKey :: (vk: U32): Key
   elif vk == '7' ;; return Key.K7
   elif vk == '8' ;; return Key.K8
   elif vk == '9' ;; return Key.K9
-  Assert(false, "Unidentified Virtual Key")
+  return Key.Nil
 /*END*/