src/msw/utilsexc.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        utilsexec.cpp
   3 // Purpose:     Various utilities
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/setup.h"
  25 #include "wx/utils.h"
  26 #include "wx/app.h"
  27 #endif
  28
  29 #include "wx/log.h"
  30 #include "wx/msw/private.h"
  31 #include <windows.h>
  32
  33 #include <ctype.h>
  34
  35 #ifndef __GNUWIN32__
  36 #include <direct.h>
  37 #include <dos.h>
  38 #endif
  39
  40 #ifdef __GNUWIN32__
  41 #include <sys/unistd.h>
  42 #include <sys/stat.h>
  43 #endif
  44
  45 #ifdef __WIN32__
  46 #include <io.h>
  47
  48 #ifndef __GNUWIN32__
  49 #include <shellapi.h>
  50 #endif
  51 #endif
  52
  53 #include <stdio.h>
  54 #include <stdlib.h>
  55 #include <string.h>
  56 #ifndef __WATCOMC__
  57 #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  58 #include <errno.h>
  59 #endif
  60 #endif
  61 #include <stdarg.h>
  62
  63 #define wxEXECUTE_WIN_MESSAGE 10000
  64
  65 struct wxExecuteData {
  66   HWND window;
  67   HINSTANCE process;
  68   wxProcess *handler;
  69   char state;
  70 };
  71
  72
  73 #ifdef __WIN32__
  74 static DWORD wxExecuteThread(wxExecuteData *data)
  75 {
  76   WaitForSingleObject(data->process, INFINITE);
  77
  78   // Send an implicit message to the window
  79   SendMessage(data->window, wxEXECUTE_WIN_MESSAGE, 0, (LPARAM)data);
  80
  81   return 0;
  82 }
  83 #endif
  84
  85
  86 LRESULT APIENTRY _EXPORT wxExecuteWindowCbk(HWND hWnd, UINT message,
  87                                             WPARAM wParam, LPARAM lParam)
  88 {
  89   wxExecuteData *data = (wxExecuteData *)lParam;
  90
  91   if (message == wxEXECUTE_WIN_MESSAGE) {
  92     DestroyWindow(hWnd);
  93     if (data->handler)
  94       data->handler->OnTerminate((int)data->process);
  95
  96     if (data->state)
  97       data->state = 0;
  98     else
  99       delete data;
 100   }
 101   return 0;
 102 }
 103
 104 extern char wxPanelClassName[];
 105
 106 long wxExecute(const wxString& command, bool sync, wxProcess *handler)
 107 {
 108   if (command == "")
 109     return 0;
 110
 111 #ifdef __WIN32__
 112   char * cl;
 113   char * argp;
 114   int clen;
 115   HINSTANCE result;
 116   DWORD dresult;
 117   HWND window;
 118   wxExecuteData *data;
 119   DWORD tid;
 120
 121   // copy the command line
 122   clen = command.Length();
 123   if (!clen) return -1;
 124   cl = (char *) calloc( 1, 256);
 125   if (!cl) return -1;
 126   strcpy( cl, WXSTRINGCAST command);
 127
 128   // isolate command and arguments
 129   argp = strchr( cl, ' ');
 130   if (argp)
 131     *argp++ = '\0';
 132
 133 #ifdef __GNUWIN32__
 134   result = ShellExecute((HWND) (wxTheApp->GetTopWindow() ? (HWND) wxTheApp->GetTopWindow()->GetHWND() : NULL),
 135      (const wchar_t) "open", (const wchar_t) cl, (const wchar_t) argp,
 136      (const wchar_t) NULL, SW_SHOWNORMAL);
 137 #else
 138   result = ShellExecute( (HWND) (wxTheApp->GetTopWindow() ? wxTheApp->GetTopWindow()->GetHWND() : NULL),
 139      "open", cl, argp, NULL, SW_SHOWNORMAL);
 140 #endif
 141
 142   if (((long)result) <= 32) {
 143    free(cl);
 144
 145    wxLogSysError(_("Can't execute command '%s'"), command.c_str());
 146    return 0;
 147   }
 148
 149   // Alloc data
 150   data = new wxExecuteData;
 151
 152   // Create window
 153   window = CreateWindow(wxPanelClassName, NULL, 0, 0, 0, 0, 0, NULL,
 154                         (HMENU) NULL, wxGetInstance(), 0);
 155
 156   FARPROC ExecuteWindowInstance = MakeProcInstance((FARPROC) wxExecuteWindowCbk,
 157                                                    wxGetInstance());
 158
 159   SetWindowLong(window, GWL_WNDPROC, (LONG) ExecuteWindowInstance);
 160   SetWindowLong(window, GWL_USERDATA, (LONG) data);
 161
 162   data->process = result;
 163   data->window  = window;
 164   data->state   = sync;
 165   data->handler = (sync) ? NULL : handler;
 166
 167   dresult = (DWORD)CreateThread(NULL, 0,
 168                                 (LPTHREAD_START_ROUTINE)wxExecuteThread,
 169                                 (void *)data, 0, &tid);
 170   if (dresult == 0) {
 171     wxDebugMsg("wxExecute PANIC: I can't create the waiting thread !");
 172     DestroyWindow(window);
 173     return (long)result;
 174   }
 175
 176   if (!sync)
 177   {
 178     free(cl);
 179     return (long)result;
 180   }
 181
 182   // waiting until command executed
 183   while (data->state)
 184     wxYield();
 185
 186   free(cl);
 187   return 0;
 188 #else
 189   long instanceID = WinExec((LPCSTR) WXSTRINGCAST command, SW_SHOW);
 190   if (instanceID < 32) return(0);
 191
 192   if (sync) {
 193     int running;
 194     do {
 195       wxYield();
 196       running = GetModuleUsage((HANDLE)instanceID);
 197     } while (running);
 198   }
 199   return(instanceID);
 200 #endif
 201 }
 202
 203 long wxExecute(char **argv, bool sync, wxProcess *handler)
 204 {
 205   wxString command = "";
 206
 207   while (*argv != NULL) {
 208     command += *argv;
 209     command += ' ';
 210     argv++;
 211   }
 212   command.RemoveLast();
 213   return wxExecute(command, sync, handler);
 214 }