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1 %
2 % automatically generated by HelpGen from
3 % /home/vasek/fs\_mem.h at 27/Feb/00 19:23:10
4 %
5
6 \section{\class{wxMemoryFSHandler}}\label{wxmemoryfshandler}
7
8 This \helpref{wxFileSystem}{wxfilesystem} handler can store arbitrary
9 data in memory stream and make them accessible via URL. It is particularly
10 suitable for storing bitmaps from resources or included XPM files so that
11 they can be used with wxHTML.
12
13 Filenames are prefixed with "memory:", e.g. "memory:myfile.html".
14
15 Example:
16
17 \begin{verbatim}
18 #ifndef __WXMSW__
19 #include "logo.xpm"
20 #endif
21
22 void MyFrame::OnAbout(wxCommandEvent&)
23 {
24 wxBusyCursor bcur;
25 wxFileSystem::AddHandler(new wxMemoryFSHandler);
26 wxMemoryFSHandler::AddFile("logo.pcx", wxBITMAP(logo), wxBITMAP_TYPE_PCX);
27 wxMemoryFSHandler::AddFile("about.htm",
28 "<html><body>About: "
29 "<img src=\"memory:logo.pcx\"></body></html>");
30
31 wxDialog dlg(this, -1, wxString(_("About")));
32 wxBoxSizer *topsizer;
33 wxHtmlWindow *html;
34 topsizer = new wxBoxSizer(wxVERTICAL);
35 html = new wxHtmlWindow(&dlg, -1, wxDefaultPosition,
36 wxSize(380, 160), wxHW_SCROLLBAR_NEVER);
37 html->SetBorders(0);
38 html->LoadPage("memory:about.htm");
39 html->SetSize(html->GetInternalRepresentation()->GetWidth(),
40 html->GetInternalRepresentation()->GetHeight());
41 topsizer->Add(html, 1, wxALL, 10);
42 topsizer->Add(new wxStaticLine(&dlg, -1), 0, wxEXPAND | wxLEFT | wxRIGHT, 10);
43 topsizer->Add(new wxButton(&dlg, wxID_OK, "Ok"),
44 0, wxALL | wxALIGN_RIGHT, 15);
45 dlg.SetAutoLayout(true);
46 dlg.SetSizer(topsizer);
47 topsizer->Fit(&dlg);
48 dlg.Centre();
49 dlg.ShowModal();
50
51 wxMemoryFSHandler::RemoveFile("logo.pcx");
52 wxMemoryFSHandler::RemoveFile("about.htm");
53 }
54 \end{verbatim}
55
56
57 \wxheading{Derived from}
58
59 \helpref{wxFileSystemHandler}{wxfilesystemhandler}\\
60 \helpref{wxObject}{wxobject}
61
62 \wxheading{Include files}
63
64 <wx/fs\_mem.h>
65
66 \wxheading{Library}
67
68 \helpref{wxBase}{librarieslist}
69
70
71 \latexignore{\rtfignore{\wxheading{Members}}}
72
73
74 \membersection{wxMemoryFSHandler::wxMemoryFSHandler}\label{wxmemoryfshandlerwxmemoryfshandler}
75
76 \func{}{wxMemoryFSHandler}{\void}
77
78 Constructor.
79
80 \membersection{wxMemoryFSHandler::AddFile}\label{wxmemoryfshandleraddfile}
81
82 \func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{wxImage\& }{image}, \param{long }{type}}
83
84 \func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const wxBitmap\& }{bitmap}, \param{long }{type}}
85
86 Add file to list of files stored in memory. Stored
87 data (bitmap, text or raw data)
88 will be copied into private memory stream and available under
89 name "memory:" + \arg{filename}.
90
91 The \arg{type} argument is one of {\tt wxBITMAP\_TYPE\_XXX} constants.
92 Note that you must use a \arg{type} value (aka image format)
93 that wxWidgets can save (e.g. JPG, PNG, see \helpref{wxImage
94 documentation}{wximage})!
95
96 \wxheading{See also}
97
98 \helpref{AddFileWithMimeType}{wxmemoryfshandleraddfilewithmimetype}
99
100
101 \membersection{wxMemoryFSHandler::AddFileWithMimeType}\label{wxmemoryfshandleraddfilewithmimetype}
102
103 \func{static void}{AddFileWithMimeType}{\param{const wxString\& }{filename}, \param{const wxString\& }{textdata}, \param{const wxString\& }{mimetype}}
104
105 \func{static void}{AddFileWithMimeType}{\param{const wxString\& }{filename}, \param{const void* }{binarydata}, \param{size\_t }{size}, \param{const wxString\& }{mimetype}}
106
107 Like \helpref{AddFile}{wxmemoryfshandleraddfile}, but lets you explicitly
108 specify added file's MIME type. This version should be used whenever you know
109 the MIME type, because it makes accessing the files faster.
110
111 \newsince{2.8.5}
112
113 \wxheading{See also}
114
115 \helpref{AddFile}{wxmemoryfshandleraddfile}
116
117 \membersection{wxMemoryFSHandler::RemoveFile}\label{wxmemoryfshandlerremovefile}
118
119 \func{static void}{RemoveFile}{\param{const wxString\& }{filename}}
120
121 Remove file from memory FS and free occupied memory.
122