include/wx/msw/ole/automtn.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        automtn.h
   3 // Purpose:     OLE automation utilities
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     11/6/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998, Julian Smart
   9 // Licence:     wxWindows Licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma interface "automtn.h"
  14 #endif
  15
  16 #ifndef _WX_AUTOMTN_H_
  17 #define _WX_AUTOMTN_H_
  18
  19 #include "wx/object.h"
  20 #include "wx/variant.h"
  21
  22 typedef void            WXIDISPATCH;
  23 typedef unsigned short* WXBSTR;
  24
  25 #ifdef GetObject
  26 #undef GetObject
  27 #endif
  28
  29 /*
  30  * wxAutomationObject
  31  * Wraps up an IDispatch pointer and invocation; does variant conversion.
  32  */
  33
  34 class WXDLLEXPORT wxAutomationObject: public wxObject
  35 {
  36 public:
  37     wxAutomationObject(WXIDISPATCH* dispatchPtr = NULL);
  38     ~wxAutomationObject();
  39
  40         // Set/get dispatch pointer
  41     inline void SetDispatchPtr(WXIDISPATCH* dispatchPtr) { m_dispatchPtr = dispatchPtr; };
  42     inline WXIDISPATCH* GetDispatchPtr() const { return m_dispatchPtr; }
  43
  44         // Get a dispatch pointer from the current object associated
  45         // with a class id, such as "Excel.Application"
  46         bool GetInstance(const wxString& classId) const;
  47
  48         // Get a dispatch pointer from a new instance of the the class
  49         bool CreateInstance(const wxString& classId) const;
  50
  51         // Low-level invocation function. Pass either an array of variants,
  52         // or an array of pointers to variants.
  53     bool Invoke(const wxString& member, int action,
  54         wxVariant& retValue, int noArgs, wxVariant args[], const wxVariant* ptrArgs[] = 0) const;
  55
  56         // Invoke a member function
  57         wxVariant CallMethod(const wxString& method, int noArgs, wxVariant args[]);
  58
  59         // Convenience function
  60         wxVariant CallMethod(const wxString& method,
  61                 const wxVariant& arg1 = wxNullVariant, const wxVariant& arg2 = wxNullVariant,
  62                 const wxVariant& arg3 = wxNullVariant, const wxVariant& arg4 = wxNullVariant,
  63                 const wxVariant& arg5 = wxNullVariant, const wxVariant& arg6 = wxNullVariant);
  64
  65         // Get/Put property
  66     wxVariant GetProperty(const wxString& property, int noArgs = 0, wxVariant args[] = (wxVariant*) NULL) const;
  67         wxVariant GetProperty(const wxString& property,
  68                 const wxVariant& arg1, const wxVariant& arg2 = wxNullVariant,
  69                 const wxVariant& arg3 = wxNullVariant, const wxVariant& arg4 = wxNullVariant,
  70                 const wxVariant& arg5 = wxNullVariant, const wxVariant& arg6 = wxNullVariant);
  71
  72     bool PutProperty(const wxString& property, int noArgs, wxVariant args[]) ;
  73         bool PutProperty(const wxString& property,
  74                 const wxVariant& arg1, const wxVariant& arg2 = wxNullVariant,
  75                 const wxVariant& arg3 = wxNullVariant, const wxVariant& arg4 = wxNullVariant,
  76                 const wxVariant& arg5 = wxNullVariant, const wxVariant& arg6 = wxNullVariant);
  77
  78         // Uses DISPATCH_PROPERTYGET
  79         // and returns a dispatch pointer. The calling code should call Release
  80         // on the pointer, though this could be implicit by constructing an wxAutomationObject
  81         // with it and letting the destructor call Release.
  82     WXIDISPATCH* GetDispatchProperty(const wxString& property, int noArgs, wxVariant args[]) const;
  83
  84         // A way of initialising another wxAutomationObject with a dispatch object,
  85         // without having to deal with nasty IDispatch pointers.
  86         bool GetObject(wxAutomationObject& obj, const wxString& property, int noArgs = 0, wxVariant args[] = (wxVariant*) NULL) const;
  87
  88 public:
  89     WXIDISPATCH*  m_dispatchPtr;
  90 };
  91
  92
  93 #endif
  94     // _WX_AUTOMTN_H_