1 files changed, 155 insertions, 0 deletions
diff --git a/src/engine/external/glfw/lib/win32/win32_enable.c b/src/engine/external/glfw/lib/win32/win32_enable.c
new file mode 100644
index 00000000..5b0d3294
--- /dev/null
+++ b/src/engine/external/glfw/lib/win32/win32_enable.c
@@ -0,0 +1,155 @@
+//========================================================================
+// GLFW - An OpenGL framework
+// File:        win32_enable.c
+// Platform:    Windows
+// API version: 2.6
+// WWW:         http://glfw.sourceforge.net
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Camilla Berglund
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+
+//************************************************************************
+//****                  GLFW internal functions                       ****
+//************************************************************************
+
+//========================================================================
+// _glfwLLKeyboardProc() - Low level keyboard callback function (used to
+// disable system keys under Windows NT).
+//========================================================================
+
+LRESULT CALLBACK _glfwLLKeyboardProc( int nCode, WPARAM wParam,
+    LPARAM lParam )
+{
+    BOOL syskeys = 0;
+    PKBDLLHOOKSTRUCT p;
+
+    // We are only looking for keyboard events - interpret lParam as a
+    // pointer to a KBDLLHOOKSTRUCT
+    p = (PKBDLLHOOKSTRUCT) lParam;
+
+    // If nCode == HC_ACTION, then we have a keyboard event
+    if( nCode == HC_ACTION )
+    {
+        switch( wParam )
+        {
+            case WM_KEYDOWN:
+            case WM_SYSKEYDOWN:
+            case WM_KEYUP:
+            case WM_SYSKEYUP:
+                // Detect: ALT+TAB, ALT+ESC, ALT+F4, CTRL+ESC,
+                // LWIN, RWIN, APPS (mysterious menu key)
+                syskeys = ( p->vkCode == VK_TAB &&
+                            p->flags & LLKHF_ALTDOWN ) ||
+                          ( p->vkCode == VK_ESCAPE &&
+                            p->flags & LLKHF_ALTDOWN ) ||
+                          ( p->vkCode == VK_F4 &&
+                            p->flags & LLKHF_ALTDOWN ) ||
+                          ( p->vkCode == VK_ESCAPE &&
+                            (GetKeyState(VK_CONTROL) & 0x8000)) ||
+                          p->vkCode == VK_LWIN ||
+                          p->vkCode == VK_RWIN ||
+                          p->vkCode == VK_APPS;
+                break;
+
+            default:
+                break;
+        }
+    }
+
+    // Was it a system key combination (e.g. ALT+TAB)?
+    if( syskeys )
+    {
+        // Pass the key event to our window message loop
+        if( _glfwWin.Opened )
+        {
+            PostMessage( _glfwWin.Wnd, (UINT) wParam, p->vkCode, 0 );
+        }
+
+        // We've taken care of it - don't let the system know about this
+        // key event
+        return 1;
+    }
+    else
+    {
+        // It's a harmless key press, let the system deal with it
+        return CallNextHookEx( _glfwWin.KeyboardHook, nCode, wParam,
+                               lParam );
+    }
+}
+
+
+
+//************************************************************************
+//****               Platform implementation functions                ****
+//************************************************************************
+
+//========================================================================
+// _glfwPlatformEnableSystemKeys() - Enable system keys
+// _glfwPlatformDisableSystemKeys() - Disable system keys
+//========================================================================
+
+void _glfwPlatformEnableSystemKeys( void )
+{
+    BOOL bOld;
+
+    // Use different methods depending on operating system version
+    if( _glfwLibrary.Sys.WinVer >= _GLFW_WIN_NT4 )
+    {
+        if( _glfwWin.KeyboardHook != NULL )
+        {
+            UnhookWindowsHookEx( _glfwWin.KeyboardHook );
+            _glfwWin.KeyboardHook = NULL;
+        }
+    }
+    else
+    {
+        (void) SystemParametersInfo( SPI_SETSCREENSAVERRUNNING, FALSE,
+                                     &bOld, 0 );
+    }
+}
+
+void _glfwPlatformDisableSystemKeys( void )
+{
+    BOOL bOld;
+
+    // Use different methods depending on operating system version
+    if( _glfwLibrary.Sys.WinVer >= _GLFW_WIN_NT4 )
+    {
+        // Under Windows NT, install a low level keyboard hook
+        _glfwWin.KeyboardHook = SetWindowsHookEx( WH_KEYBOARD_LL,
+                                    _glfwLLKeyboardProc,
+                                    _glfwLibrary.Instance,
+                                    0 );
+    }
+    else
+    {
+        // Under Windows 95/98/ME, fool Windows that a screensaver
+        // is running => prevents ALT+TAB, CTRL+ESC and CTRL+ALT+DEL
+        (void) SystemParametersInfo( SPI_SETSCREENSAVERRUNNING, TRUE,
+                                     &bOld, 0 );
+    }
+}
+