Transformed glfwEnable/Disable/SetCursorMode into glfwGetInputMode/SetInputMode.

2026-09-18 22:55:46 +00:00 · 2012-02-04 00:51:35 +01:00
parent 011ef7463a
commit ce288a8939
19 changed files with 219 additions and 279 deletions
@@ -0,0 +1,128 @@
+//========================================================================
+// GLFW - An OpenGL library
+// Platform:    Win32/WGL
+// API version: 3.0
+// WWW:         http://www.glfw.org/
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
+//
+// 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"
+
+
+//========================================================================
+// Low level keyboard hook (system callback) function
+// Used to disable system keys under Windows NT
+//========================================================================
+
+static LRESULT CALLBACK keyboardHook(int nCode, WPARAM wParam, LPARAM lParam)
+{
+    BOOL syskeys = FALSE;
+    PKBDLLHOOKSTRUCT p;
+
+    // We are only looking for keyboard events - interpret lParam as a
+    // pointer to a KBDLLHOOKSTRUCT
+    p = (PKBDLLHOOKSTRUCT) lParam;
+
+    if (nCode == HC_ACTION)
+    {
+        // We have a keyboard event
+
+        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)
+    {
+        _GLFWwindow* window = _glfwLibrary.activeWindow;
+
+        // Pass the key event to our window message loop
+        if (window)
+            PostMessage(window->Win32.handle, (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(_glfwLibrary.Win32.keyboardHook, nCode, wParam, lParam);
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+//========================================================================
+// Enable system keys
+//========================================================================
+
+void _glfwPlatformEnableSystemKeys(_GLFWwindow* window)
+{
+    if (_glfwLibrary.Win32.keyboardHook != NULL)
+    {
+        UnhookWindowsHookEx(_glfwLibrary.Win32.keyboardHook);
+        _glfwLibrary.Win32.keyboardHook = NULL;
+    }
+}
+
+
+//========================================================================
+// Disable system keys
+//========================================================================
+
+void _glfwPlatformDisableSystemKeys(_GLFWwindow* window)
+{
+    _glfwLibrary.Win32.keyboardHook = SetWindowsHookEx(WH_KEYBOARD_LL,
+                                                       keyboardHook,
+                                                       _glfwLibrary.Win32.instance,
+                                                       0);
+}
+