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 #ifndef _WX_AUTOMTN_H_
  13 #define _WX_AUTOMTN_H_
  14
  15 #include "wx/defs.h"
  16
  17 #if wxUSE_OLE_AUTOMATION
  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 WXDLLIMPEXP_CORE wxAutomationObject: public wxObject
  35 {
  36 public:
  37     wxAutomationObject(WXIDISPATCH* dispatchPtr = NULL);
  38     virtual ~wxAutomationObject();
  39
  40     // Set/get dispatch pointer
  41     void SetDispatchPtr(WXIDISPATCH* dispatchPtr) { m_dispatchPtr = dispatchPtr; }
  42     WXIDISPATCH* GetDispatchPtr() const { return m_dispatchPtr; }
  43     bool IsOk() const { return m_dispatchPtr != NULL; }
  44
  45     // Get a dispatch pointer from the current object associated
  46     // with a class id, such as "Excel.Application"
  47     bool GetInstance(const wxString& classId) const;
  48
  49     // Get a dispatch pointer from a new instance of the the class
  50     bool CreateInstance(const wxString& classId) const;
  51
  52     // Low-level invocation function. Pass either an array of variants,
  53     // or an array of pointers to variants.
  54     bool Invoke(const wxString& member, int action,
  55         wxVariant& retValue, int noArgs, wxVariant args[], const wxVariant* ptrArgs[] = 0) const;
  56
  57     // Invoke a member function
  58     wxVariant CallMethod(const wxString& method, int noArgs, wxVariant args[]);
  59     wxVariant CallMethodArray(const wxString& method, int noArgs, const wxVariant **args);
  60
  61     // Convenience function
  62     wxVariant CallMethod(const wxString& method,
  63         const wxVariant& arg1 = wxNullVariant, const wxVariant& arg2 = wxNullVariant,
  64         const wxVariant& arg3 = wxNullVariant, const wxVariant& arg4 = wxNullVariant,
  65         const wxVariant& arg5 = wxNullVariant, const wxVariant& arg6 = wxNullVariant);
  66
  67     // Get/Put property
  68     wxVariant GetProperty(const wxString& property, int noArgs = 0, wxVariant args[] = NULL) const;
  69     wxVariant GetPropertyArray(const wxString& property, int noArgs, const wxVariant **args) const;
  70     wxVariant GetProperty(const wxString& property,
  71         const wxVariant& arg1, const wxVariant& arg2 = wxNullVariant,
  72         const wxVariant& arg3 = wxNullVariant, const wxVariant& arg4 = wxNullVariant,
  73         const wxVariant& arg5 = wxNullVariant, const wxVariant& arg6 = wxNullVariant);
  74
  75     bool PutPropertyArray(const wxString& property, int noArgs, const wxVariant **args);
  76     bool PutProperty(const wxString& property, int noArgs, wxVariant args[]) ;
  77     bool PutProperty(const wxString& property,
  78         const wxVariant& arg1, const wxVariant& arg2 = wxNullVariant,
  79         const wxVariant& arg3 = wxNullVariant, const wxVariant& arg4 = wxNullVariant,
  80         const wxVariant& arg5 = wxNullVariant, const wxVariant& arg6 = wxNullVariant);
  81
  82     // Uses DISPATCH_PROPERTYGET
  83     // and returns a dispatch pointer. The calling code should call Release
  84     // on the pointer, though this could be implicit by constructing an wxAutomationObject
  85     // with it and letting the destructor call Release.
  86     WXIDISPATCH* GetDispatchProperty(const wxString& property, int noArgs, wxVariant args[]) const;
  87     WXIDISPATCH* GetDispatchProperty(const wxString& property, int noArgs, const wxVariant **args) const;
  88
  89     // A way of initialising another wxAutomationObject with a dispatch object,
  90     // without having to deal with nasty IDispatch pointers.
  91     bool GetObject(wxAutomationObject& obj, const wxString& property, int noArgs = 0, wxVariant args[] = NULL) const;
  92     bool GetObject(wxAutomationObject& obj, const wxString& property, int noArgs, const wxVariant **args) const;
  93
  94 public:
  95     WXIDISPATCH*  m_dispatchPtr;
  96
  97     DECLARE_NO_COPY_CLASS(wxAutomationObject)
  98 };
  99
 100 #endif // wxUSE_OLE_AUTOMATION
 101
 102 #endif // _WX_AUTOMTN_H_