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

README.md

@@ -212,6 +212,8 @@ information on what to include when reporting a bug.
  - [Win32] Bugfix: `glfwMaximizeWindow` would make a hidden window visible
  - [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)
  - [Cocoa] Added support for `VK_EXT_metal_surface` (#1619)
  - [Cocoa] Added locating the Vulkan loader at runtime in an application bundle
  - [Cocoa] Moved main menu creation to GLFW initialization time (#1649)

src/win32_init.c

@@ -253,7 +253,6 @@ 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

@@ -756,6 +756,10 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM l
             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