📄 fs_mem.tex

📁 很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.
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%% automatically generated by HelpGen from% /home/vasek/fs\_mem.h at 27/Feb/00 19:23:10%\section{\class{wxMemoryFSHandler}}\label{wxmemoryfshandler}This \helpref{wxFileSystem}{wxfilesystem} handler can store arbitrary data in memory stream and make them accessible via URL. It is particularlysuitable for storing bitmaps from resources or included XPM files so thatthey can be used with wxHTML.Filenames are prefixed with "memory:", e.g. "memory:myfile.html".Example:\begin{verbatim}#ifndef __WXMSW__#include "logo.xpm"#endifvoid MyFrame::OnAbout(wxCommandEvent&){    wxBusyCursor bcur;    wxFileSystem::AddHandler(new wxMemoryFSHandler);    wxMemoryFSHandler::AddFile("logo.pcx", wxBITMAP(logo), wxBITMAP_TYPE_PCX);    wxMemoryFSHandler::AddFile("about.htm",                                "<html><body>About: "                               "<img src=\"memory:logo.pcx\"></body></html>");    wxDialog dlg(this, -1, wxString(_("About")));    wxBoxSizer *topsizer;    wxHtmlWindow *html;    topsizer = new wxBoxSizer(wxVERTICAL);    html = new wxHtmlWindow(&dlg, -1, wxDefaultPosition,                             wxSize(380, 160), wxHW_SCROLLBAR_NEVER);    html->SetBorders(0);    html->LoadPage("memory:about.htm");    html->SetSize(html->GetInternalRepresentation()->GetWidth(),                   html->GetInternalRepresentation()->GetHeight());    topsizer->Add(html, 1, wxALL, 10);    topsizer->Add(new wxStaticLine(&dlg, -1), 0, wxEXPAND | wxLEFT | wxRIGHT, 10);    topsizer->Add(new wxButton(&dlg, wxID_OK, "Ok"),                   0, wxALL | wxALIGN_RIGHT, 15);    dlg.SetAutoLayout(true);    dlg.SetSizer(topsizer);    topsizer->Fit(&dlg);    dlg.Centre();    dlg.ShowModal();        wxMemoryFSHandler::RemoveFile("logo.pcx");    wxMemoryFSHandler::RemoveFile("about.htm");}\end{verbatim}\wxheading{Derived from}\helpref{wxFileSystemHandler}{wxfilesystemhandler}\wxheading{Include files}<wx/fs\_mem.h>\latexignore{\rtfignore{\wxheading{Members}}}\membersection{wxMemoryFSHandler::wxMemoryFSHandler}\label{wxmemoryfshandlerwxmemoryfshandler}\func{}{wxMemoryFSHandler}{\void}Constructor.\membersection{wxMemoryFSHandler::AddFile}\label{wxmemoryfshandleraddfile}\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{wxImage\& }{image}, \param{long }{type}}\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const wxBitmap\& }{bitmap}, \param{long }{type}}\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const wxString\& }{textdata}}\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const void* }{binarydata}, \param{size\_t }{size}}Add file to list of files stored in memory. Stored data (bitmap, text or raw data)will be copied into private memory stream and available under name "memory:" + \arg{filename}.The \arg{type} argument is one of {\tt wxBITMAP\_TYPE\_XXX} constants.Note that you must use a \arg{type} value (aka image format)that wxWidgets can save (e.g. JPG, PNG, see \helpref{wxImagedocumentation}{wximage})!\membersection{wxMemoryFSHandler::RemoveFile}\label{wxmemoryfshandlerremovefile}\func{static void}{RemoveFile}{\param{const wxString\& }{filename}}Remove file from memory FS and free occupied memory.
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