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6\section{\class{wxMemoryFSHandler}}\label{wxmemoryfshandler}
7
8This \helpref{wxFileSystem}{wxfilesystem} handler can store arbitrary
9data in memory stream and make them accessible via URL. It is particularly
10suitable for storing bitmaps from resources or included XPM files so that
11they can be used with wxHTML.
12
13Filenames are prefixed with "memory:", e.g. "memory:myfile.html".
14
15Example:
16
17\begin{verbatim}
18#ifndef __WXMSW__
19#include "logo.xpm"
20#endif
21
22void 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
61\wxheading{Include files}
62
63<wx/fs\_mem.h>
64
65
66\latexignore{\rtfignore{\wxheading{Members}}}
67
68
69\membersection{wxMemoryFSHandler::wxMemoryFSHandler}\label{wxmemoryfshandlerwxmemoryfshandler}
70
71\func{}{wxMemoryFSHandler}{\void}
72
73Constructor.
74
75\membersection{wxMemoryFSHandler::AddFile}\label{wxmemoryfshandleraddfile}
76
77\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{wxImage\& }{image}, \param{long }{type}}
78
79\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const wxBitmap\& }{bitmap}, \param{long }{type}}
80
81\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const wxString\& }{textdata}}
82
83\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const void* }{binarydata}, \param{size\_t }{size}}
84
85Add file to list of files stored in memory. Stored
86data (bitmap, text or raw data)
87will be copied into private memory stream and available under
88name "memory:" + \arg{filename}.
89
90The \arg{type} argument is one of {\tt wxBITMAP\_TYPE\_XXX} constants.
91Note that you must use a \arg{type} value (aka image format)
92that wxWidgets can save (e.g. JPG, PNG, see \helpref{wxImage
93documentation}{wximage})!
94
95
96\membersection{wxMemoryFSHandler::RemoveFile}\label{wxmemoryfshandlerremovefile}
97
98\func{static void}{RemoveFile}{\param{const wxString\& }{filename}}
99
100Remove file from memory FS and free occupied memory.
101