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/* wptCurrWnd.cpp - Current window code |
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* Copyright (C) 2001-2004, 2006, 2007 Timo Schulz |
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* |
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* This file is part of WinPT. |
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* |
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* WinPT is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* WinPT is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include <config.h> |
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#endif |
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|
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#include <windows.h> |
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|
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#include "wptW32API.h" |
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#include "wptErrors.h" |
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#include "wptVersion.h" |
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|
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#define KEYDOWN(vcode, scode) keybd_event ((vcode), (scode), 0, 0) |
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#define KEYUP(vcode, scode) keybd_event ((vcode), (scode), KEYEVENTF_KEYUP, 0) |
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|
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|
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/* PTD prototypes from the DLL. */ |
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extern "C" HWND PTD_get_curr_hwnd (void); |
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extern "C" BOOL PTD_keyb_send (UINT *keys, UINT n_keys); |
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extern "C" int PTD_is_used (void); |
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|
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|
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/* Clear the clipboard contents. */ |
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static void |
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clip_clear (void) |
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{ |
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OpenClipboard (NULL); |
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EmptyClipboard (); |
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CloseClipboard (); |
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} |
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|
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|
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/* Check if the clipboard returns any text. |
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Return value: 0 on success. */ |
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static int |
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clip_check (void) |
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{ |
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HANDLE clipmem; |
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|
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/* Little backoff time to make sure the clipboard now really |
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contains all data. */ |
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Sleep (400); |
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|
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if (OpenClipboard (NULL) == FALSE) |
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return WPTERR_CLIP_OPEN; |
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clipmem = GetClipboardData (CF_TEXT); |
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if (clipmem == NULL) { |
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CloseClipboard (); |
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return WPTERR_CLIP_GET; |
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} |
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CloseClipboard (); |
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return 0; |
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} |
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|
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|
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/* Fabricate a "select all" keystroke sequence. */ |
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static void |
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window_msg_selectall (void) |
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{ |
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unsigned int keys[4]; |
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|
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if (PTD_is_used ()) { |
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keys[0] = VK_CONTROL | 0x8000; |
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keys[1] = 'A' | 0x8000; |
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keys[2] = 'A'; |
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keys[3] = VK_CONTROL; |
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PTD_keyb_send (keys, 4); |
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|
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} |
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else { |
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KEYDOWN (VK_CONTROL, 0x1d); |
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KEYDOWN ((BYTE)'A', 0x1e); |
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KEYUP ((BYTE)'A', 0x1e); |
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KEYUP (VK_CONTROL, 0x1d); |
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} |
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} |
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|
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|
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/* Fabricate a "paste" keystrok sequence. */ |
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static void |
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window_msg_paste (void) |
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{ |
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unsigned int keys[4]; |
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|
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if (PTD_is_used ()) { |
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keys[0] = VK_CONTROL | 0x8000; |
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keys[1] = 'V' | 0x8000; |
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keys[2] = 'V'; |
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keys[3] = VK_CONTROL; |
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PTD_keyb_send (keys, 4); |
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} |
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else { |
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KEYDOWN (VK_CONTROL, 0x1d); |
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KEYDOWN ((BYTE)'V', 0x2f); |
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KEYUP ((BYTE)'V', 0x2f); |
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KEYUP (VK_CONTROL, 0x1d); |
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} |
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} |
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|
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|
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/* Fabricate a "copy" keystroke sequence. */ |
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static void |
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window_msg_copy (void) |
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{ |
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unsigned int keys[4]; |
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|
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if (PTD_is_used ()) { |
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keys[0] = VK_CONTROL | 0x8000; |
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keys[1] = 'C' | 0x8000; |
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keys[2] = 'C'; |
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keys[3] = VK_CONTROL; |
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PTD_keyb_send (keys, 4); |
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} |
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else { |
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KEYDOWN (VK_CONTROL, 0x1d); |
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KEYDOWN ((BYTE)'C', 0x2e); |
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KEYUP ((BYTE)'C', 0x2e); |
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KEYUP (VK_CONTROL, 0x1d); |
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} |
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} |
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|
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|
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/* Set the position inside the edit control @hwnd. */ |
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static inline void |
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window_msg_em_set_pos (HWND hwnd, int begin) |
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{ |
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SendMessage (hwnd, EM_SETSEL, 0, begin? 0 : -1); |
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} |
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|
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|
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/* Get the current window and return it in @r_main. |
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Return value: The Window with the keyboard focus. */ |
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static HWND |
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get_current_wnd (HWND main, int use_hotkey, HWND *r_main) |
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{ |
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HWND prev, fg; |
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|
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if (use_hotkey) |
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prev = GetForegroundWindow (); |
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else { |
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*r_main = GetNextWindow (main, GW_HWNDNEXT); |
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return PTD_get_curr_hwnd (); |
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} |
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|
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SetForegroundWindow (prev); |
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AttachThreadInput (GetCurrentThreadId(), |
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GetWindowThreadProcessId (prev, NULL), |
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TRUE); |
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fg = GetFocus (); |
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AttachThreadInput (GetCurrentThreadId (), |
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GetWindowThreadProcessId (prev, NULL), |
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FALSE); |
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|
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*r_main = prev; |
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return fg; |
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} |
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|
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|
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/* Retrieve the contents of the current window based on |
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the old window handle @old_hwnd and store the information |
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in @ctx. |
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A return value of 0 indicates a problem. */ |
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int |
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copy_window_content (HWND old_hwnd, HWND *r_main, HWND *r_focus, |
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int use_hotkey) |
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{ |
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HWND hwnd; |
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int rc; |
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|
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rc = WPTERR_GENERAL; |
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hwnd = get_current_wnd (old_hwnd, use_hotkey, r_main); |
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if (!hwnd) |
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return rc; |
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*r_focus = hwnd; |
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clip_clear (); |
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|
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AttachThreadInput (GetCurrentThreadId (), |
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GetWindowThreadProcessId (hwnd, NULL), |
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TRUE); |
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SetFocus (hwnd); |
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/* First we try to send a simple clipboard copying command and check |
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if the clipboard contains some text. */ |
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SendMessage (hwnd, WM_COPY, 0, 0); |
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if (!clip_check ()) { |
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rc = 0; |
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goto leave; |
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} |
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/* Then the check if the window is an edit control */ |
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window_msg_em_set_pos (hwnd, 0); |
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SendMessage (hwnd, WM_COPY, 0, 0); |
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if (!clip_check ()) { |
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rc = 0; |
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goto leave; |
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} |
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|
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/* The last try is to send a mark all and copy to clipboard command */ |
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window_msg_selectall (); |
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window_msg_copy (); |
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if (!clip_check ()) |
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rc = 0; |
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|
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leave: |
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AttachThreadInput (GetCurrentThreadId (), |
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GetWindowThreadProcessId (hwnd, NULL), |
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FALSE); |
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return rc; |
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} |
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|
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|
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/* Restore the clipboard contents to the window handle given |
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in @ctx and reset the current window to @old_hwnd if possible. */ |
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int |
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paste_window_content (HWND old_hwnd, HWND main, HWND focus) |
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{ |
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HWND hwnd, lost; |
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|
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hwnd = focus; |
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|
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/* Restore window when in minimized state. */ |
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if (IsIconic (main)) |
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ShowWindow (hwnd, SW_SHOWNORMAL); |
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SetForegroundWindow (hwnd); |
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|
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AttachThreadInput (GetCurrentThreadId (), |
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GetWindowThreadProcessId (hwnd, NULL), |
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TRUE); |
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|
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lost = SetFocus (hwnd); |
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|
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window_msg_em_set_pos (hwnd, 0); |
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window_msg_paste (); |
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window_msg_em_set_pos (hwnd, 1); |
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|
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AttachThreadInput (GetCurrentThreadId(), |
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GetWindowThreadProcessId (hwnd, NULL), |
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FALSE); |
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|
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SetForegroundWindow (lost); |
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return 0; |
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} |
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