修改WINDOW源码中的EDIT，实现透明EDIT

/* * Edit control * * Copyright David W. Metcalfe, 1994 * Copyright William Magro, 1995, 1996 * Copyright Frans van Dorsselaer, 1996, 1997 * * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA * * NOTES * * This code was audited for completeness against the documented features * of Comctl32.dll version 6.0 on Oct. 8, 2004, by Dimitrie O. Paun. * * Unless otherwise noted, we believe this code to be complete, as per * the specification mentioned above. * If you discover missing features, or bugs, please note them below. * * TODO: * - EDITBALLOONTIP structure * - EM_GETCUEBANNER/Edit_GetCueBannerText * - EM_HIDEBALLOONTIP/Edit_HideBalloonTip * - EM_SETCUEBANNER/Edit_SetCueBannerText * - EM_SHOWBALLOONTIP/Edit_ShowBalloonTip * - EM_GETIMESTATUS, EM_SETIMESTATUS * - EN_ALIGN_LTR_EC * - EN_ALIGN_RTL_EC * - ES_OEMCONVERT * */ //#include <user32.h> //#include <wine/debug.h> //WINE_DEFAULT_DEBUG_CHANNEL(edit); //WINE_DECLARE_DEBUG_CHANNEL(combo); //WINE_DECLARE_DEBUG_CHANNEL(relay); #include <windows.h> #define BUFLIMIT_INITIAL 30000 /* initial buffer size */ #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */ #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1)) #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */ /* * extra flags for EDITSTATE.flags field */ #define EF_MODIFIED 0x0001 /* text has been modified */ #define EF_FOCUSED 0x0002 /* we have input focus */ #define EF_UPDATE 0x0004 /* notify parent of changed state */ #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */ #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */ #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a wrapped line, instead of in front of the next character */ #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */ #define EF_APP_HAS_HANDLE 0x0200 /* Set when an app sends EM_[G|S]ETHANDLE. We are in sole control of the text buffer if this is clear. */ #define EF_DIALOGMODE 0x0400 /* Indicates that we are inside a dialog window */ //*******************huzg************************ #define ES_COMBO 0x00000200 #define ID_CB_LISTBOX 1000 #define TRACE(fmt, ...) #define WARN(fmt, ...) #define FIXME(fmt, ...) #define ERR(fmt, ...) #define strcpyW(d,s) wcscpy((wchar_t *)(d),(const wchar_t *)(s)) #define strlenW(s) wcslen((const wchar_t *)(s)) //******************20101222********************************** typedef enum { END_0 = 0, /* line ends with terminating '\0' character */ END_WRAP, /* line is wrapped */ END_HARD, /* line ends with a hard return '\r\n' */ END_SOFT, /* line ends with a soft return '\r\r\n' */ END_RICH /* line ends with a single '\n' */ } LINE_END; typedef struct tagLINEDEF { INT length; /* bruto length of a line in bytes */ INT net_length; /* netto length of a line in visible characters */ LINE_END ending; INT width; /* width of the line in pixels */ INT index; /* line index into the buffer */ struct tagLINEDEF *next; } LINEDEF; typedef struct { BOOL is_unicode; /* how the control was created */ LPWSTR text; /* the actual contents of the control */ UINT text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */ UINT buffer_size; /* the size of the buffer in characters */ UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */ HFONT font; /* NULL means standard system font */ INT x_offset; /* scroll offset for multi lines this is in pixels for single lines it's in characters */ INT line_height; /* height of a screen line in pixels */ INT char_width; /* average character width in pixels */ DWORD style; /* sane version of wnd->dwStyle */ WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */ INT undo_insert_count; /* number of characters inserted in sequence */ UINT undo_position; /* character index of the insertion and deletion */ LPWSTR undo_text; /* deleted text */ UINT undo_buffer_size; /* size of the deleted text buffer */ INT selection_start; /* == selection_end if no selection */ INT selection_end; /* == current caret position */ WCHAR password_char; /* == 0 if no password char, and for multi line controls */ INT left_margin; /* in pixels */ INT right_margin; /* in pixels */ RECT format_rect; INT text_width; /* width of the widest line in pixels for multi line controls and just line width for single line controls */ INT region_posx; /* Position of cursor relative to region: */ INT region_posy; /* -1: to left, 0: within, 1: to right */ void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */ INT line_count; /* number of lines */ INT y_offset; /* scroll offset in number of lines */ BOOL bCaptureState; /* flag indicating whether mouse was captured */ BOOL bEnableState; /* flag keeping the enable state */ HWND hwndSelf; /* the our window handle */ HWND hwndParent; /* Handle of parent for sending EN_* messages. Even if parent will change, EN_* messages should be sent to the first parent. */ HWND hwndListBox; /* handle of ComboBox's listbox or NULL */ /* * only for multi line controls */ INT lock_count; /* amount of re-entries in the EditWndProc */ INT tabs_count; LPINT tabs; LINEDEF *first_line_def; /* linked list of (soft) linebreaks */ HLOCAL hloc32W; /* our unicode local memory block */ HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE or EM_SETHANDLE */ /* * IME Data */ UINT composition_len; /* length of composition, 0 == no composition */ int composition_start; /* the character position for the composition */ } EDITSTATE; #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0) #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0) /* used for disabled or read-only edit control */ #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \ do \ { /* Notify parent which has created this edit control */ \ TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \ SendMessageW(es->hwndParent, WM_COMMAND, \ MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \ (LPARAM)(es->hwndSelf)); \ } while(0) static const WCHAR empty_stringW[] = {0}; /********************************************************************* * * EM_CANUNDO * */ static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es) { return (es->undo_insert_count || strlenW(es->undo_text)); } /********************************************************************* * * EM_EMPTYUNDOBUFFER * */ static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es) { es->undo_insert_count = 0; *es->undo_text = '\0'; } /********************************************************************** *