Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 194 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/hw/xwin/winkeyhook.c b/nx-X11/programs/Xserver/hw/xwin/winkeyhook.c
new file mode 100755
index 000000000..53d91e6ee
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/xwin/winkeyhook.c
@@ -0,0 +1,194 @@
+/*
+ *Copyright (C) 2004 Harold L Hunt II All Rights Reserved.
+ *
+ *Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ *"Software"), to deal in the Software without restriction, including
+ *without limitation the rights to use, copy, modify, merge, publish,
+ *distribute, sublicense, and/or sell copies of the Software, and to
+ *permit persons to whom the Software is furnished to do so, subject to
+ *the following conditions:
+ *
+ *The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *Except as contained in this notice, the name of Harold L Hunt II
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from Harold L Hunt II.
+ *
+ * Authors:	Harold L Hunt II
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+
+
+/*
+ * References to external symbols
+ */
+
+extern HHOOK			g_hhookKeyboardLL;
+extern DWORD			g_dwCurrentThreadID;
+extern HWND			g_hwndKeyboardFocus;
+
+
+/*
+ * Function prototypes
+ */
+
+static LRESULT CALLBACK
+winKeyboardMessageHookLL (int iCode, WPARAM wParam, LPARAM lParam);
+
+
+#ifndef LLKHF_EXTENDED
+# define LLKHF_EXTENDED  0x00000001
+#endif
+#ifndef LLKHF_UP
+# define LLKHF_UP  0x00000080
+#endif
+
+
+/*
+ * KeyboardMessageHook
+ */
+
+static LRESULT CALLBACK
+winKeyboardMessageHookLL (int iCode, WPARAM wParam, LPARAM lParam)
+{
+  BOOL			fPassKeystroke = FALSE;
+  BOOL			fPassAltTab = TRUE;
+  PKBDLLHOOKSTRUCT	p = (PKBDLLHOOKSTRUCT) lParam;
+  HWND			hwnd = GetActiveWindow(); 
+#ifdef XWIN_MULTIWINDOW
+  WindowPtr		pWin = NULL;
+  winPrivWinPtr	        pWinPriv = NULL;
+  winPrivScreenPtr	pScreenPriv = NULL;
+  winScreenInfo		*pScreenInfo = NULL;
+
+  /* Check if the Windows window property for our X window pointer is valid */
+  if ((pWin = GetProp (hwnd, WIN_WINDOW_PROP)) != NULL)
+    {
+      /* Get a pointer to our window privates */
+      pWinPriv		= winGetWindowPriv(pWin);
+
+      /* Get pointers to our screen privates and screen info */
+      pScreenPriv	= pWinPriv->pScreenPriv;
+      pScreenInfo	= pScreenPriv->pScreenInfo;
+
+      if (pScreenInfo->fMultiWindow)
+          fPassAltTab = FALSE;
+    }
+#endif
+
+  /* Pass keystrokes on to our main message loop */
+  if (iCode == HC_ACTION)
+    {
+#if 0
+      ErrorF ("vkCode: %08x\tscanCode: %08x\n", p->vkCode, p->scanCode);
+#endif
+
+      switch (wParam)
+	{
+	case WM_KEYDOWN:  case WM_SYSKEYDOWN:
+	case WM_KEYUP:    case WM_SYSKEYUP: 
+	  fPassKeystroke = 
+	    (fPassAltTab && 
+                (p->vkCode == VK_TAB) && ((p->flags & LLKHF_ALTDOWN) != 0))
+	    || (p->vkCode == VK_LWIN) || (p->vkCode == VK_RWIN)
+	    ;
+	  break;
+	}
+    }
+
+  /*
+   * Pass message on to our main message loop.
+   * We process this immediately with SendMessage so that the keystroke
+   * appears in, hopefully, the correct order.
+   */
+  if (fPassKeystroke)
+    {
+      LPARAM		lParamKey = 0x0;
+
+      /* Construct the lParam from KBDLLHOOKSTRUCT */
+      lParamKey = lParamKey | (0x0000FFFF & 0x00000001); /* Repeat count */
+      lParamKey = lParamKey | (0x00FF0000 & (p->scanCode << 16));
+      lParamKey = lParamKey
+	| (0x01000000 & ((p->flags & LLKHF_EXTENDED) << 23));
+      lParamKey = lParamKey
+	| (0x20000000
+	   & ((p->flags & LLKHF_ALTDOWN) << 24));
+      lParamKey = lParamKey | (0x80000000 & ((p->flags & LLKHF_UP) << 24));
+
+      /* Send message to our main window that has the keyboard focus */
+      PostMessage (hwnd,
+		   (UINT) wParam,
+		   (WPARAM) p->vkCode,
+		   lParamKey);
+
+      return 1;
+    }
+
+  /* Call next hook */
+  return CallNextHookEx (NULL, iCode, wParam, lParam);
+}
+
+
+/*
+ * Attempt to install the keyboard hook, return FALSE if it was not installed
+ */
+
+Bool
+winInstallKeyboardHookLL ()
+{
+  OSVERSIONINFO		osvi = {0};
+  
+  /* Get operating system version information */
+  osvi.dwOSVersionInfoSize = sizeof (osvi);
+  GetVersionEx (&osvi);
+
+  /* Branch on platform ID */
+  switch (osvi.dwPlatformId)
+    {
+    case VER_PLATFORM_WIN32_NT:
+      /* Low-level is supported on NT 4.0 SP3+ only */
+      /* TODO: Return FALSE on NT 4.0 with no SP, SP1, or SP2 */
+      break;
+
+    case VER_PLATFORM_WIN32_WINDOWS:
+      /* Low-level hook is not supported on non-NT */
+      return FALSE;
+    }
+
+  /* Install the hook only once */
+  if (!g_hhookKeyboardLL)
+    g_hhookKeyboardLL = SetWindowsHookEx (WH_KEYBOARD_LL,
+					  winKeyboardMessageHookLL,
+					  g_hInstance,
+					  0);
+
+  return TRUE;
+}
+
+
+/*
+ * Remove the keyboard hook if it is installed
+ */
+
+void
+winRemoveKeyboardHookLL ()
+{
+  if (g_hhookKeyboardLL)
+    UnhookWindowsHookEx (g_hhookKeyboardLL);
+  g_hhookKeyboardLL = NULL;
+}