Win32: Fix glfwGetKeyScancode for GLFW_KEY_PAUSE

The bug described in 03cfe957e7 was
already present for another key where modifiers changes its scancode.

Related to #1993

(cherry picked from commit 8d9231fe5e)

README.md

@@ -125,6 +125,8 @@ information on what to include when reporting a bug.
 
  - [Win32] Bugfix: `Alt+PrtSc` would emit `GLFW_KEY_UNKNOWN` and a different
    scancode than `PrtSc` (#1993)
+ - [Win32] Bugfix: `GLFW_KEY_PAUSE` scancode from `glfwGetKeyScancode` did not
+   match event scancode (#1993)
 
 
 ## Contact

src/win32_init.c

@@ -254,7 +254,6 @@ static void createKeyTables(void)
     _glfw.win32.keycodes[0x151] = GLFW_KEY_PAGE_DOWN;
     _glfw.win32.keycodes[0x149] = GLFW_KEY_PAGE_UP;
     _glfw.win32.keycodes[0x045] = GLFW_KEY_PAUSE;
-    _glfw.win32.keycodes[0x146] = GLFW_KEY_PAUSE;
     _glfw.win32.keycodes[0x039] = GLFW_KEY_SPACE;
     _glfw.win32.keycodes[0x00F] = GLFW_KEY_TAB;
     _glfw.win32.keycodes[0x03A] = GLFW_KEY_CAPS_LOCK;

src/win32_window.c

@@ -752,6 +752,10 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
             if (scancode == 0x54)
                 scancode = 0x137;
 
+            // HACK: Ctrl+Pause has a different scancode than just Pause
+            if (scancode == 0x146)
+                scancode = 0x45;
+
             key = _glfw.win32.keycodes[scancode];
 
             // The Ctrl keys require special handling