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1. some more tests in console

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2. added wxFileType::GetOpenCommand() demo in the exec sample
3. "fixed" the error messages from wxExecute() - still no idea why it happens
   though :-(


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8588 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2000-10-19 23:50:07 +00:00
parent bab004238d
commit 6ba636000f
4 changed files with 155 additions and 21 deletions
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60
src/msw/utilsexc.cpp
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@@ -320,6 +320,7 @@ long wxExecute(const wxString& cmd, bool sync, wxProcess *handler)
wxCHECK_MSG( !!cmd, 0, wxT("empty command in wxExecute") );
wxString command;
#if wxUSE_IPC
// DDE hack: this is really not pretty, but we need to allow this for
// transparent handling of DDE servers in wxMimeTypesManager. Usually it
@@ -327,7 +328,7 @@ long wxExecute(const wxString& cmd, bool sync, wxProcess *handler)
// given type. Sometimes, however, this command just launches the server
// and an additional DDE request must be made to really open the file. To
// keep all this well hidden from the application, we allow a special form
// of command: WX_DDE:<command>:DDE_SERVER:DDE_TOPIC:DDE_COMMAND in which
// of command: WX_DDE#<command>#DDE_SERVER#DDE_TOPIC#DDE_COMMAND in which
// case we execute just <command> and process the rest below
wxString ddeServer, ddeTopic, ddeCommand;
static const size_t lenDdePrefix = 7; // strlen("WX_DDE:")
@@ -383,6 +384,28 @@ long wxExecute(const wxString& cmd, bool sync, wxProcess *handler)
{
ddeCommand += *p++;
}
// maybe we don't have to launch the DDE server at all - if it is
// already running, for example
wxDDEClient client;
wxLogNull nolog;
wxConnectionBase *conn = client.MakeConnection(_T(""),
ddeServer,
ddeTopic);
if ( conn )
{
// FIXME we don't check the return code as for some strange reason
// it will sometimes be FALSE - it is probably a bug in our
// DDE code but I don't see anything wrong there
(void)conn->Execute(ddeCommand);
// ok, the command executed - return value indicating success,
// making it up for async case as we really don't have any way to
// get the real PID of the DDE server here
return sync ? 0 : -1;
}
//else: couldn't establish DDE conversation, now try launching the app
// and sending the DDE request again
}
else
#endif // wxUSE_IPC
@@ -617,12 +640,37 @@ long wxExecute(const wxString& cmd, bool sync, wxProcess *handler)
if ( !!ddeServer )
{
wxDDEClient client;
wxConnectionBase *conn = client.MakeConnection(_T(""),
ddeServer,
ddeTopic);
if ( !conn || !conn->Execute(ddeCommand) )
wxConnectionBase *conn;
{
wxLogError(_("Couldn't launch DDE server '%s'."), command.c_str());
// try doing it the first time without error messages
wxLogNull nolog;
conn = client.MakeConnection(_T(""), ddeServer, ddeTopic);
}
if ( !conn )
{
// give the app some time to initialize itself: in fact, a common
// reason for failure is that we tried to open DDE conversation too
// soon (before the app had time to setup its DDE server), so wait
// a bit and try again
::Sleep(2000);
wxConnectionBase *conn = client.MakeConnection(_T(""),
ddeServer,
ddeTopic);
if ( !conn )
{
wxLogError(_("Couldn't launch DDE server '%s'."), command.c_str());
}
}
if ( conn )
{
// FIXME just as above we don't check Execute() return code
wxLogNull nolog;
(void)conn->Execute(ddeCommand);
}
}
#endif // wxUSE_IPC