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- /* @doc EXTERNAL
- *
- * Copyright (c) 1996-1999 Microsoft Corporation
- *
- * @module TEXTSRV.H Text Service Interface |
- *
- * Define interfaces between the Text Services component and the host
- *
- * Original Author: <nl>
- * Christian Fortini
- *
- * History: <nl>
- * 8/1/95 ricksa Revised interface definition
- */
-
- #ifndef _TEXTSERV_H
- #pragma option push -b -a8 -pc -A- /*P_O_Push*/
- #define _TEXTSERV_H
-
- #if _MSC_VER > 1000
- #pragma once
- #endif
-
- EXTERN_C const IID IID_ITextServices;
- EXTERN_C const IID IID_ITextHost;
-
- // Note: error code is first outside of range reserved for OLE.
- #define S_MSG_KEY_IGNORED \
- MAKE_HRESULT(SEVERITY_SUCCESS, FACILITY_ITF, 0x201)
-
- // Enums used by property methods
-
- /*
- * TXTBACKSTYLE
- *
- * @enum Defines different background styles control
- */
- enum TXTBACKSTYLE {
- TXTBACK_TRANSPARENT = 0, //@emem background should show through
- TXTBACK_OPAQUE, //@emem erase background
- };
-
-
- /*
- * TXTHITRESULT
- *
- * @enum Defines different hitresults
- */
- enum TXTHITRESULT {
- TXTHITRESULT_NOHIT = 0, //@emem no hit
- TXTHITRESULT_TRANSPARENT = 1, //@emem point is within the text's rectangle, but
- //in a transparent region
- TXTHITRESULT_CLOSE = 2, //@emem point is close to the text
- TXTHITRESULT_HIT = 3 //@emem dead-on hit
- };
-
- /*
- * TXTNATURALSIZE
- *
- * @enum useful values for TxGetNaturalSize.
- *
- * @xref <mf CTxtEdit::TxGetNaturalSize>
- */
- enum TXTNATURALSIZE {
- TXTNS_FITTOCONTENT = 1, //@emem Get a size that fits the content
- TXTNS_ROUNDTOLINE = 2 //@emem Round to the nearest whole line.
- };
-
- /*
- * TXTVIEW
- *
- * @enum useful values for TxDraw lViewId parameter
- *
- * @xref <mf CTxtEdit::TxDraw>
- */
- enum TXTVIEW {
- TXTVIEW_ACTIVE = 0,
- TXTVIEW_INACTIVE = -1
- };
-
-
- /*
- * CHANGETYPE
- *
- * @enum used for CHANGENOTIFY.dwChangeType; indicates what happened
- * for a particular change.
- */
- enum CHANGETYPE
- {
- CN_GENERIC = 0, //@emem Nothing special happened
- CN_TEXTCHANGED = 1, //@emem the text changed
- CN_NEWUNDO = 2, //@emem A new undo action was added
- CN_NEWREDO = 4 //@emem A new redo action was added
- };
-
- /*
- * @struct CHANGENOTIFY |
- *
- * passed during an EN_CHANGE notification; contains information about
- * what actually happened for a change.
- */
- struct CHANGENOTIFY {
- DWORD dwChangeType; //@field TEXT changed, etc
- void * pvCookieData; //@field cookie for the undo action
- // associated with the change.
- };
-
- // The TxGetPropertyBits and OnTxPropertyBitsChange methods can pass the following bits:
-
- // NB!!! Do NOT rely on the ordering of these bits yet; the are subject
- // to change.
- #define TXTBIT_RICHTEXT 1 // rich-text control
- #define TXTBIT_MULTILINE 2 // single vs multi-line control
- #define TXTBIT_READONLY 4 // read only text
- #define TXTBIT_SHOWACCELERATOR 8 // underline accelerator character
- #define TXTBIT_USEPASSWORD 0x10 // use password char to display text
- #define TXTBIT_HIDESELECTION 0x20 // show selection when inactive
- #define TXTBIT_SAVESELECTION 0x40 // remember selection when inactive
- #define TXTBIT_AUTOWORDSEL 0x80 // auto-word selection
- #define TXTBIT_VERTICAL 0x100 // vertical
- #define TXTBIT_SELBARCHANGE 0x200 // notification that the selection bar width
- // has changed.
- // FUTURE: move this bit to the end to
- // maintain the division between
- // properties and notifications.
- #define TXTBIT_WORDWRAP 0x400 // if set, then multi-line controls
- // should wrap words to fit the available
- // display
- #define TXTBIT_ALLOWBEEP 0x800 // enable/disable beeping
- #define TXTBIT_DISABLEDRAG 0x1000 // disable/enable dragging
- #define TXTBIT_VIEWINSETCHANGE 0x2000 // the inset changed
- #define TXTBIT_BACKSTYLECHANGE 0x4000
- #define TXTBIT_MAXLENGTHCHANGE 0x8000
- #define TXTBIT_SCROLLBARCHANGE 0x10000
- #define TXTBIT_CHARFORMATCHANGE 0x20000
- #define TXTBIT_PARAFORMATCHANGE 0x40000
- #define TXTBIT_EXTENTCHANGE 0x80000
- #define TXTBIT_CLIENTRECTCHANGE 0x100000 // the client rectangle changed
- #define TXTBIT_USECURRENTBKG 0x200000 // tells the renderer to use the current background
- // color rather than the system default for an entire line
-
-
- /*
- * ITextServices
- *
- * @class An interface extending Microsoft's Text Object Model to provide
- * extra functionality for windowless operation. In conjunction
- * with ITextHost, ITextServices provides the means by which the
- * the RichEdit control can be used *without* creating a window.
- *
- * @base public | IUnknown
- */
- class ITextServices : public IUnknown
- {
- public:
-
- //@cmember Generic Send Message interface
- virtual HRESULT TxSendMessage(
- UINT msg,
- WPARAM wparam,
- LPARAM lparam,
- LRESULT *plresult) = 0;
-
- //@cmember Rendering
- virtual HRESULT TxDraw(
- DWORD dwDrawAspect,
- LONG lindex,
- void * pvAspect,
- DVTARGETDEVICE * ptd,
- HDC hdcDraw,
- HDC hicTargetDev,
- LPCRECTL lprcBounds,
- LPCRECTL lprcWBounds,
- LPRECT lprcUpdate,
- BOOL (CALLBACK * pfnContinue) (DWORD),
- DWORD dwContinue,
- LONG lViewId) = 0;
-
- //@cmember Horizontal scrollbar support
- virtual HRESULT TxGetHScroll(
- LONG *plMin,
- LONG *plMax,
- LONG *plPos,
- LONG *plPage,
- BOOL * pfEnabled ) = 0;
-
- //@cmember Horizontal scrollbar support
- virtual HRESULT TxGetVScroll(
- LONG *plMin,
- LONG *plMax,
- LONG *plPos,
- LONG *plPage,
- BOOL * pfEnabled ) = 0;
-
- //@cmember Setcursor
- virtual HRESULT OnTxSetCursor(
- DWORD dwDrawAspect,
- LONG lindex,
- void * pvAspect,
- DVTARGETDEVICE * ptd,
- HDC hdcDraw,
- HDC hicTargetDev,
- LPCRECT lprcClient,
- INT x,
- INT y) = 0;
-
- //@cmember Hit-test
- virtual HRESULT TxQueryHitPoint(
- DWORD dwDrawAspect,
- LONG lindex,
- void * pvAspect,
- DVTARGETDEVICE * ptd,
- HDC hdcDraw,
- HDC hicTargetDev,
- LPCRECT lprcClient,
- INT x,
- INT y,
- DWORD * pHitResult) = 0;
-
- //@cmember Inplace activate notification
- virtual HRESULT OnTxInPlaceActivate(LPCRECT prcClient) = 0;
-
- //@cmember Inplace deactivate notification
- virtual HRESULT OnTxInPlaceDeactivate() = 0;
-
- //@cmember UI activate notification
- virtual HRESULT OnTxUIActivate() = 0;
-
- //@cmember UI deactivate notification
- virtual HRESULT OnTxUIDeactivate() = 0;
-
- //@cmember Get text in control
- virtual HRESULT TxGetText(BSTR *pbstrText) = 0;
-
- //@cmember Set text in control
- virtual HRESULT TxSetText(LPCWSTR pszText) = 0;
-
- //@cmember Get x position of
- virtual HRESULT TxGetCurTargetX(LONG *) = 0;
- //@cmember Get baseline position
- virtual HRESULT TxGetBaseLinePos(LONG *) = 0;
-
- //@cmember Get Size to fit / Natural size
- virtual HRESULT TxGetNaturalSize(
- DWORD dwAspect,
- HDC hdcDraw,
- HDC hicTargetDev,
- DVTARGETDEVICE *ptd,
- DWORD dwMode,
- const SIZEL *psizelExtent,
- LONG *pwidth,
- LONG *pheight) = 0;
-
- //@cmember Drag & drop
- virtual HRESULT TxGetDropTarget( IDropTarget **ppDropTarget ) = 0;
-
- //@cmember Bulk bit property change notifications
- virtual HRESULT OnTxPropertyBitsChange(DWORD dwMask, DWORD dwBits) = 0;
-
- //@cmember Fetch the cached drawing size
- virtual HRESULT TxGetCachedSize(DWORD *pdwWidth, DWORD *pdwHeight)=0;
- };
-
-
- /*
- * ITextHost
- *
- * @class Interface to be used by text services to obtain text host services
- *
- * @base public | IUnknown
- */
- class ITextHost : public IUnknown
- {
- public:
-
- //@cmember Get the DC for the host
- virtual HDC TxGetDC() = 0;
-
- //@cmember Release the DC gotten from the host
- virtual INT TxReleaseDC(HDC hdc) = 0;
-
- //@cmember Show the scroll bar
- virtual BOOL TxShowScrollBar(INT fnBar, BOOL fShow) = 0;
-
- //@cmember Enable the scroll bar
- virtual BOOL TxEnableScrollBar (INT fuSBFlags, INT fuArrowflags) = 0;
-
- //@cmember Set the scroll range
- virtual BOOL TxSetScrollRange(
- INT fnBar,
- LONG nMinPos,
- INT nMaxPos,
- BOOL fRedraw) = 0;
-
- //@cmember Set the scroll position
- virtual BOOL TxSetScrollPos (INT fnBar, INT nPos, BOOL fRedraw) = 0;
-
- //@cmember InvalidateRect
- virtual void TxInvalidateRect(LPCRECT prc, BOOL fMode) = 0;
-
- //@cmember Send a WM_PAINT to the window
- virtual void TxViewChange(BOOL fUpdate) = 0;
-
- //@cmember Create the caret
- virtual BOOL TxCreateCaret(HBITMAP hbmp, INT xWidth, INT yHeight) = 0;
-
- //@cmember Show the caret
- virtual BOOL TxShowCaret(BOOL fShow) = 0;
-
- //@cmember Set the caret position
- virtual BOOL TxSetCaretPos(INT x, INT y) = 0;
-
- //@cmember Create a timer with the specified timeout
- virtual BOOL TxSetTimer(UINT idTimer, UINT uTimeout) = 0;
-
- //@cmember Destroy a timer
- virtual void TxKillTimer(UINT idTimer) = 0;
-
- //@cmember Scroll the content of the specified window's client area
- virtual void TxScrollWindowEx (
- INT dx,
- INT dy,
- LPCRECT lprcScroll,
- LPCRECT lprcClip,
- HRGN hrgnUpdate,
- LPRECT lprcUpdate,
- UINT fuScroll) = 0;
-
- //@cmember Get mouse capture
- virtual void TxSetCapture(BOOL fCapture) = 0;
-
- //@cmember Set the focus to the text window
- virtual void TxSetFocus() = 0;
-
- //@cmember Establish a new cursor shape
- virtual void TxSetCursor(HCURSOR hcur, BOOL fText) = 0;
-
- //@cmember Converts screen coordinates of a specified point to the client coordinates
- virtual BOOL TxScreenToClient (LPPOINT lppt) = 0;
-
- //@cmember Converts the client coordinates of a specified point to screen coordinates
- virtual BOOL TxClientToScreen (LPPOINT lppt) = 0;
-
- //@cmember Request host to activate text services
- virtual HRESULT TxActivate( LONG * plOldState ) = 0;
-
- //@cmember Request host to deactivate text services
- virtual HRESULT TxDeactivate( LONG lNewState ) = 0;
-
- //@cmember Retrieves the coordinates of a window's client area
- virtual HRESULT TxGetClientRect(LPRECT prc) = 0;
-
- //@cmember Get the view rectangle relative to the inset
- virtual HRESULT TxGetViewInset(LPRECT prc) = 0;
-
- //@cmember Get the default character format for the text
- virtual HRESULT TxGetCharFormat(const CHARFORMATW **ppCF ) = 0;
-
- //@cmember Get the default paragraph format for the text
- virtual HRESULT TxGetParaFormat(const PARAFORMAT **ppPF) = 0;
-
- //@cmember Get the background color for the window
- virtual COLORREF TxGetSysColor(int nIndex) = 0;
-
- //@cmember Get the background (either opaque or transparent)
- virtual HRESULT TxGetBackStyle(TXTBACKSTYLE *pstyle) = 0;
-
- //@cmember Get the maximum length for the text
- virtual HRESULT TxGetMaxLength(DWORD *plength) = 0;
-
- //@cmember Get the bits representing requested scroll bars for the window
- virtual HRESULT TxGetScrollBars(DWORD *pdwScrollBar) = 0;
-
- //@cmember Get the character to display for password input
- virtual HRESULT TxGetPasswordChar(TCHAR *pch) = 0;
-
- //@cmember Get the accelerator character
- virtual HRESULT TxGetAcceleratorPos(LONG *pcp) = 0;
-
- //@cmember Get the native size
- virtual HRESULT TxGetExtent(LPSIZEL lpExtent) = 0;
-
- //@cmember Notify host that default character format has changed
- virtual HRESULT OnTxCharFormatChange (const CHARFORMATW * pcf) = 0;
-
- //@cmember Notify host that default paragraph format has changed
- virtual HRESULT OnTxParaFormatChange (const PARAFORMAT * ppf) = 0;
-
- //@cmember Bulk access to bit properties
- virtual HRESULT TxGetPropertyBits(DWORD dwMask, DWORD *pdwBits) = 0;
-
- //@cmember Notify host of events
- virtual HRESULT TxNotify(DWORD iNotify, void *pv) = 0;
-
- // Far East Methods for getting the Input Context
- //#ifdef WIN95_IME
- virtual HIMC TxImmGetContext() = 0;
- virtual void TxImmReleaseContext( HIMC himc ) = 0;
- //#endif
-
- //@cmember Returns HIMETRIC size of the control bar.
- virtual HRESULT TxGetSelectionBarWidth (LONG *lSelBarWidth) = 0;
-
- };
-
- //+-----------------------------------------------------------------------
- // Factories
- //------------------------------------------------------------------------
-
- // Text Services factory
- STDAPI CreateTextServices(
- IUnknown *punkOuter,
- ITextHost *pITextHost,
- IUnknown **ppUnk);
-
- typedef HRESULT (STDAPICALLTYPE * PCreateTextServices)(
- IUnknown *punkOuter,
- ITextHost *pITextHost,
- IUnknown **ppUnk);
-
- #pragma option pop /*P_O_Pop*/
- #endif // _TEXTSERV_H
-