really show the window after creation (calling Show(TRUE) doesn't do it any more)

[wxWidgets.git] / src / msw / utilsexc.cpp

diff --git a/src/msw/utilsexc.cpp b/src/msw/utilsexc.cpp
index 17eac58b1912a0d5aa58d20ac63ee768ef0e80fd..671d9e9083aaf7141449e3b810ef87cf76412353 100644 (file)
--- a/src/msw/utilsexc.cpp
+++ b/src/msw/utilsexc.cpp
@@ -17,7 +17,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

     #pragma implementation
 #endif
 
     #pragma implementation
 #endif
 


@@ -33,40 +33,39 @@
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/log.h"

-    #if wxUSE_GUI // See 'dirty hack' below.
-        #include "wx/frame.h"
-    #endif

 #endif
 
 #endif
 

-#ifdef __WIN32__
-    #include "wx/stream.h"
-    #include "wx/process.h"
-#endif
+#include "wx/stream.h"
+#include "wx/process.h"
+
+#include "wx/apptrait.h"
+
+#include "wx/module.h"

 
 #include "wx/msw/private.h"
 
 #include <ctype.h>
 
 
 #include "wx/msw/private.h"
 
 #include <ctype.h>
 

-#if !defined(__GNUWIN32__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__)
+#if !defined(__GNUWIN32__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)

     #include <direct.h>
 #ifndef __MWERKS__
     #include <dos.h>
 #endif
 #endif
 
     #include <direct.h>
 #ifndef __MWERKS__
     #include <dos.h>
 #endif
 #endif
 

-#if defined(__GNUWIN32__) && !defined(__TWIN32__)
+#if defined(__GNUWIN32__)

     #include <sys/unistd.h>
     #include <sys/stat.h>
 #endif
 
     #include <sys/unistd.h>
     #include <sys/stat.h>
 #endif
 

-#if defined(__WIN32__) && !defined(__WXMICROWIN__)
-#ifndef __UNIX__
-    #include <io.h>
-#endif
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+    #ifndef __UNIX__
+        #include <io.h>
+    #endif

 
 

-#ifndef __GNUWIN32__
-#include <shellapi.h>
-#endif
+    #ifndef __GNUWIN32__
+        #include <shellapi.h>
+    #endif

 #endif
 
 #include <stdio.h>
 #endif
 
 #include <stdio.h>


@@ -83,6 +82,10 @@
     #include "wx/dde.h"         // for WX_DDE hack in wxExecute
 #endif // wxUSE_IPC
 
     #include "wx/dde.h"         // for WX_DDE hack in wxExecute
 #endif // wxUSE_IPC
 

+// implemented in utils.cpp
+extern "C" WXDLLIMPEXP_BASE HWND
+wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc);
+

 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------


@@ -97,6 +100,7 @@
 // we need to create a hidden window to receive the process termination
 // notifications and for this we need a (Win) class name for it which we will
 // register the first time it's needed
 // we need to create a hidden window to receive the process termination
 // notifications and for this we need a (Win) class name for it which we will
 // register the first time it's needed

+static const wxChar *wxMSWEXEC_WNDCLASSNAME = wxT("_wxExecute_Internal_Class");

 static const wxChar *gs_classForHiddenWindow = NULL;
 
 // ----------------------------------------------------------------------------
 static const wxChar *gs_classForHiddenWindow = NULL;
 
 // ----------------------------------------------------------------------------


@@ -109,12 +113,10 @@ struct wxExecuteData
 public:
     ~wxExecuteData()
     {
 public:
     ~wxExecuteData()
     {

-#ifndef __WIN16__

         if ( !::CloseHandle(hProcess) )
         {
             wxLogLastError(wxT("CloseHandle(hProcess)"));
         }
         if ( !::CloseHandle(hProcess) )
         {
             wxLogLastError(wxT("CloseHandle(hProcess)"));
         }

-#endif

     }
 
     HWND       hWnd;          // window to send wxWM_PROC_TERMINATED to
     }
 
     HWND       hWnd;          // window to send wxWM_PROC_TERMINATED to


@@ -125,7 +127,28 @@ public:
     bool       state;         // set to FALSE when the process finishes
 };
 
     bool       state;         // set to FALSE when the process finishes
 };
 

-#if defined(__WIN32__) && wxUSE_STREAMS
+class wxExecuteModule : public wxModule
+{
+public:
+    virtual bool OnInit() { return true; }
+    virtual void OnExit()
+    {
+        if ( *gs_classForHiddenWindow )
+        {
+            if ( !::UnregisterClass(wxMSWEXEC_WNDCLASSNAME, wxGetInstance()) )
+            {
+                wxLogLastError(_T("UnregisterClass(wxExecClass)"));
+            }
+
+            gs_classForHiddenWindow = NULL;
+        }
+    }
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxExecuteModule)
+};
+
+#if wxUSE_STREAMS && !defined(__WXWINCE__)

 
 // ----------------------------------------------------------------------------
 // wxPipeStreams
 
 // ----------------------------------------------------------------------------
 // wxPipeStreams


@@ -259,8 +282,6 @@ private:
 // implementation
 // ============================================================================
 
 // implementation
 // ============================================================================
 

-#ifdef __WIN32__
-

 // ----------------------------------------------------------------------------
 // process termination detecting support
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // process termination detecting support
 // ----------------------------------------------------------------------------


@@ -330,7 +351,7 @@ LRESULT APIENTRY _EXPORT wxExecuteWindowCbk(HWND hWnd, UINT message,
 // implementation of IO redirection support classes
 // ============================================================================
 
 // implementation of IO redirection support classes
 // ============================================================================
 

-#if wxUSE_STREAMS
+#if wxUSE_STREAMS && !defined(__WXWINCE__)

 
 // ----------------------------------------------------------------------------
 // wxPipeInputStreams
 
 // ----------------------------------------------------------------------------
 // wxPipeInputStreams


@@ -439,8 +460,6 @@ size_t wxPipeOutputStream::OnSysWrite(const void *buffer, size_t len)
 
 #endif // wxUSE_STREAMS
 
 
 #endif // wxUSE_STREAMS
 

-#endif // Win32
-

 // ============================================================================
 // wxExecute functions family
 // ============================================================================
 // ============================================================================
 // wxExecute functions family
 // ============================================================================


@@ -452,10 +471,10 @@ static bool wxExecuteDDE(const wxString& ddeServer,
                          const wxString& ddeTopic,
                          const wxString& ddeCommand)
 {
                          const wxString& ddeTopic,
                          const wxString& ddeCommand)
 {

-    bool ok = FALSE;
+    bool ok wxDUMMY_INITIALIZE(false);

 
     wxDDEClient client;
 
     wxDDEClient client;

-    wxConnectionBase *conn = client.MakeConnection(_T(""),
+    wxConnectionBase *conn = client.MakeConnection(wxEmptyString,

                                                    ddeServer,
                                                    ddeTopic);
     if ( !conn )
                                                    ddeServer,
                                                    ddeTopic);
     if ( !conn )


@@ -464,22 +483,24 @@ static bool wxExecuteDDE(const wxString& ddeServer,
     }
     else // connected to DDE server
     {
     }
     else // connected to DDE server
     {

-        // the added complication here is that although most
-        // programs use XTYP_EXECUTE for their DDE API, some
-        // important ones - like IE and other MS stuff - use
-        // XTYP_REQUEST!
+        // the added complication here is that although most programs use
+        // XTYP_EXECUTE for their DDE API, some important ones -- like Word
+        // and other MS stuff - use XTYP_REQUEST!

         //
         //

-        // so we try one first and then the other one if it
-        // failed
+        // moreover, anotheri mportant program (IE) understands both but
+        // returns an error from Execute() so we must try Request() first
+        // to avoid doing it twice

         {
         {

+            // we're prepared for this one to fail, so don't show errors

             wxLogNull noErrors;
             wxLogNull noErrors;

-            ok = conn->Execute(ddeCommand);
+
+            ok = conn->Request(ddeCommand) != NULL;

         }
 
         if ( !ok )
         {
         }
 
         if ( !ok )
         {

-            // now try request - but show the errors
-            ok = conn->Request(ddeCommand) != NULL;
+            // now try execute -- but show the errors
+            ok = conn->Execute(ddeCommand);

         }
     }
 
         }
     }
 


@@ -594,12 +615,10 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
         command = cmd;
     }
 
         command = cmd;
     }
 

-#if defined(__WIN32__) && !defined(__TWIN32__)
-

     // the IO redirection is only supported with wxUSE_STREAMS
     BOOL redirect = FALSE;
 
     // the IO redirection is only supported with wxUSE_STREAMS
     BOOL redirect = FALSE;
 

-#if wxUSE_STREAMS
+#if wxUSE_STREAMS && !defined(__WXWINCE__)

     wxPipe pipeIn, pipeOut, pipeErr;
 
     // we'll save here the copy of pipeIn[Write]
     wxPipe pipeIn, pipeOut, pipeErr;
 
     // we'll save here the copy of pipeIn[Write]


@@ -627,7 +646,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
     wxZeroMemory(si);
     si.cb = sizeof(si);
 
     wxZeroMemory(si);
     si.cb = sizeof(si);
 

-#if wxUSE_STREAMS
+#if wxUSE_STREAMS && !defined(__WXWINCE__)

     if ( redirect )
     {
         si.dwFlags = STARTF_USESTDHANDLES;
     if ( redirect )
     {
         si.dwFlags = STARTF_USESTDHANDLES;


@@ -670,7 +689,10 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
 #endif // wxUSE_STREAMS
 
     PROCESS_INFORMATION pi;
 #endif // wxUSE_STREAMS
 
     PROCESS_INFORMATION pi;

-    DWORD dwFlags = CREATE_DEFAULT_ERROR_MODE | CREATE_SUSPENDED;
+    DWORD dwFlags = CREATE_SUSPENDED;
+#ifndef __WXWINCE__
+    dwFlags |= CREATE_DEFAULT_ERROR_MODE ;
+#endif

 
     bool ok = ::CreateProcess
                 (
 
     bool ok = ::CreateProcess
                 (


@@ -687,7 +709,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
                  &pi                // process info
                 ) != 0;
 
                  &pi                // process info
                 ) != 0;
 

-#if wxUSE_STREAMS
+#if wxUSE_STREAMS && !defined(__WXWINCE__)

     // we can close the pipe ends used by child anyhow
     if ( redirect )
     {
     // we can close the pipe ends used by child anyhow
     if ( redirect )
     {


@@ -699,7 +721,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
 
     if ( !ok )
     {
 
     if ( !ok )
     {

-#if wxUSE_STREAMS
+#if wxUSE_STREAMS && !defined(__WXWINCE__)

         // close the other handles too
         if ( redirect )
         {
         // close the other handles too
         if ( redirect )
         {


@@ -713,7 +735,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
         return flags & wxEXEC_SYNC ? -1 : 0;
     }
 
         return flags & wxEXEC_SYNC ? -1 : 0;
     }
 

-#if wxUSE_STREAMS
+#if wxUSE_STREAMS && !defined(__WXWINCE__)

     // the input buffer bufOut is connected to stdout, this is why it is
     // called bufOut and not bufIn
     wxStreamTempInputBuffer bufOut,
     // the input buffer bufOut is connected to stdout, this is why it is
     // called bufOut and not bufIn
     wxStreamTempInputBuffer bufOut,


@@ -736,29 +758,15 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
     }
 #endif // wxUSE_STREAMS
 
     }
 #endif // wxUSE_STREAMS
 

-    // register the class for the hidden window used for the notifications
-    if ( !gs_classForHiddenWindow )
-    {
-        gs_classForHiddenWindow = _T("wxHiddenWindow");
-
-        WNDCLASS wndclass;
-        wxZeroMemory(wndclass);
-        wndclass.lpfnWndProc   = (WNDPROC)wxExecuteWindowCbk;
-        wndclass.hInstance     = wxGetInstance();
-        wndclass.lpszClassName = gs_classForHiddenWindow;
-
-        if ( !::RegisterClass(&wndclass) )
-        {
-            wxLogLastError(wxT("RegisterClass(hidden window)"));
-        }
-    }
-

     // create a hidden window to receive notification about process
     // termination
     // create a hidden window to receive notification about process
     // termination

-    HWND hwnd = ::CreateWindow(gs_classForHiddenWindow, NULL,
-                               WS_OVERLAPPEDWINDOW,
-                               0, 0, 0, 0, NULL,
-                               (HMENU)NULL, wxGetInstance(), 0);
+    HWND hwnd = wxCreateHiddenWindow
+                (
+                    &gs_classForHiddenWindow,
+                    wxMSWEXEC_WNDCLASSNAME,
+                    (WNDPROC)wxExecuteWindowCbk
+                );
+

     wxASSERT_MSG( hwnd, wxT("can't create a hidden window for wxExecute") );
 
     // Alloc data
     wxASSERT_MSG( hwnd, wxT("can't create a hidden window for wxExecute") );
 
     // Alloc data


@@ -812,7 +820,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
 
     ::CloseHandle(hThread);
 
 
     ::CloseHandle(hThread);
 

-#if wxUSE_IPC
+#if wxUSE_IPC && !defined(__WXWINCE__)

     // second part of DDE hack: now establish the DDE conversation with the
     // just launched process
     if ( !ddeServer.empty() )
     // second part of DDE hack: now establish the DDE conversation with the
     // just launched process
     if ( !ddeServer.empty() )


@@ -843,6 +851,12 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
                 // ok, process ready to accept DDE requests
                 ok = wxExecuteDDE(ddeServer, ddeTopic, ddeCommand);
         }
                 // ok, process ready to accept DDE requests
                 ok = wxExecuteDDE(ddeServer, ddeTopic, ddeCommand);
         }

+
+        if ( !ok )
+        {
+            wxLogDebug(_T("Failed to send DDE request to the process \"%s\"."),
+                       cmd.c_str());
+        }

     }
 #endif // wxUSE_IPC
 
     }
 #endif // wxUSE_IPC
 


@@ -854,100 +868,35 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler)
         return pi.dwProcessId;
     }
 
         return pi.dwProcessId;
     }
 

+    wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
+    wxCHECK_MSG( traits, -1, _T("no wxAppTraits in wxExecute()?") );
+

     // disable all app windows while waiting for the child process to finish
     // disable all app windows while waiting for the child process to finish

-#if wxUSE_GUI
-
-    /*
-       We use a dirty hack here to disable all application windows (which we
-       must do because otherwise the calls to wxYield() could lead to some very
-       unexpected reentrancies in the users code) but to avoid losing
-       focus/activation entirely when the child process terminates which would
-       happen if we simply disabled everything using wxWindowDisabler. Indeed,
-       remember that Windows will never activate a disabled window and when the
-       last childs window is closed and Windows looks for a window to activate
-       all our windows are still disabled. There is no way to enable them in
-       time because we don't know when the childs windows are going to be
-       closed, so the solution we use here is to keep one special tiny frame
-       enabled all the time. Then when the child terminates it will get
-       activated and when we close it below -- after reenabling all the other
-       windows! -- the previously active window becomes activated again and
-       everything is ok.
-     */
-    wxWindow *winActive;
-    {
-        wxBusyCursor bc;
-
-        // first disable all existing windows
-        wxWindowDisabler wd;
-
-        // then create an "invisible" frame: it has minimal size, is positioned
-        // (hopefully) outside the screen and doesn't appear on the taskbar
-        winActive = new wxFrame
-                        (
-                            wxTheApp->GetTopWindow(),
-                            -1,
-                            _T(""),
-                            wxPoint(32600, 32600),
-                            wxSize(1, 1),
-                            wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR
-                        );
-        winActive->Show();
-#endif // wxUSE_GUI
-
-        // wait until the child process terminates
-        while ( data->state )
-        {
-#if wxUSE_STREAMS
-            bufOut.Update();
-            bufErr.Update();
+    void *cookie = traits->BeforeChildWaitLoop();
+
+    // wait until the child process terminates
+    while ( data->state )
+    {
+#if wxUSE_STREAMS && !defined(__WXWINCE__)
+        bufOut.Update();
+        bufErr.Update();

 #endif // wxUSE_STREAMS
 
 #endif // wxUSE_STREAMS
 

-            // don't eat 100% of the CPU -- ugly but anything else requires
-            // real async IO which we don't have for the moment
-            ::Sleep(50);
-
-#if wxUSE_GUI
-            // repaint the GUI
-            wxYield();
-#else // !GUI
-            // dispatch the messages to the hidden window so that it could
-            // process the wxWM_PROC_TERMINATED notification
-            MSG msg;
-            ::PeekMessage(&msg, hwnd, 0, 0, PM_REMOVE);
-#endif // GUI/!GUI
-        }
+        // don't eat 100% of the CPU -- ugly but anything else requires
+        // real async IO which we don't have for the moment
+        ::Sleep(50);

 
 

-#if wxUSE_GUI
+        // we must process messages or we'd never get wxWM_PROC_TERMINATED
+        traits->AlwaysYield();

     }
 
     }
 

-    // finally delete the dummy frame and, as wd has been already destroyed and
-    // the other windows reenabled, the activation is going to return to the
-    // window which had it before
-    winActive->Destroy();
-#endif // wxUSE_GUI
+    traits->AfterChildWaitLoop(cookie);

 
     DWORD dwExitCode = data->dwExitCode;
     delete data;
 
     // return the exit code
     return dwExitCode;
 
     DWORD dwExitCode = data->dwExitCode;
     delete data;
 
     // return the exit code
     return dwExitCode;

-#else // Win16
-    long instanceID = WinExec((LPCSTR) WXSTRINGCAST command, SW_SHOW);
-    if (instanceID < 32)
-        return flags & wxEXEC_SYNC ? -1 : 0;
-
-    if ( flags & wxEXEC_SYNC )
-    {
-        int running;
-        do
-        {
-            wxYield();
-            running = GetModuleUsage((HINSTANCE)instanceID);
-        } while (running);
-    }
-
-    return instanceID;
-#endif // Win16/32

 }
 
 long wxExecute(wxChar **argv, int flags, wxProcess *handler)
 }
 
 long wxExecute(wxChar **argv, int flags, wxProcess *handler)