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/msw/private.h"
  30 #include <windows.h>
  31
  32 #include <ctype.h>
  33
  34 #ifndef __GNUWIN32__
  35 #include <direct.h>
  36 #include <dos.h>
  37 #endif
  38
  39 #ifdef __GNUWIN32__
  40 #include <sys/unistd.h>
  41 #include <sys/stat.h>
  42 #ifndef __MINGW32__
  43 #include <std.h>
  44 #endif
  45
  46 #endif
  47
  48 #ifdef __WIN32__
  49 #include <io.h>
  50
  51 #ifndef __GNUWIN32__
  52 #include <shellapi.h>
  53 #endif
  54 #endif
  55
  56 #include <stdio.h>
  57 #include <stdlib.h>
  58 #include <string.h>
  59 #ifndef __WATCOMC__
  60 #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  61 #include <errno.h>
  62 #endif
  63 #endif
  64 #include <stdarg.h>
  65
  66 #define wxEXECUTE_WIN_MESSAGE 10000
  67
  68 struct wxExecuteData {
  69   HWND window;
  70   HINSTANCE process;
  71   wxProcess *handler;
  72   char state;
  73 };
  74
  75
  76 #ifdef __WIN32__
  77 static DWORD wxExecuteThread(wxExecuteData *data)
  78 {
  79   WaitForSingleObject(data->process, INFINITE);
  80
  81   // Send an implicit message to the window
  82   SendMessage(data->window, wxEXECUTE_WIN_MESSAGE, 0, (LPARAM)data);
  83
  84   return 0;
  85 }
  86 #endif
  87
  88
  89 LRESULT APIENTRY _EXPORT wxExecuteWindowCbk(HWND hWnd, UINT message,
  90                                             WPARAM wParam, LPARAM lParam)
  91 {
  92   wxExecuteData *data = (wxExecuteData *)lParam;
  93
  94   if (message == wxEXECUTE_WIN_MESSAGE) {
  95     DestroyWindow(hWnd);
  96     if (data->handler)
  97       data->handler->OnTerminate((int)data->process);
  98
  99     if (data->state)
 100       data->state = 0;
 101     else
 102       delete data;
 103   }
 104   return 0;
 105 }
 106
 107 extern char wxPanelClassName[];
 108
 109 long wxExecute(const wxString& command, bool sync, wxProcess *handler)
 110 {
 111   if (command == "")
 112     return 0;
 113
 114 #ifdef __WIN32__
 115   char * cl;
 116   char * argp;
 117   int clen;
 118   HINSTANCE result;
 119   DWORD dresult;
 120   HWND window;
 121   wxExecuteData *data;
 122   DWORD tid;
 123
 124   // copy the command line
 125   clen = command.Length();
 126   if (!clen) return -1;
 127   cl = (char *) calloc( 1, 256);
 128   if (!cl) return -1;
 129   strcpy( cl, WXSTRINGCAST command);
 130
 131   // isolate command and arguments
 132   argp = strchr( cl, ' ');
 133   if (argp)
 134     *argp++ = '\0';
 135
 136 #ifdef __GNUWIN32__
 137   result = ShellExecute((HWND) (wxTheApp->GetTopWindow() ? (HWND) wxTheApp->GetTopWindow()->GetHWND() : NULL),
 138      (const wchar_t) "open", (const wchar_t) cl, (const wchar_t) argp,
 139      (const wchar_t) NULL, SW_SHOWNORMAL);
 140 #else
 141   result = ShellExecute( (HWND) (wxTheApp->GetTopWindow() ? wxTheApp->GetTopWindow()->GetHWND() : NULL),
 142      "open", cl, argp, NULL, SW_SHOWNORMAL);
 143 #endif
 144
 145   if (((long)result) <= 32) {
 146    free(cl);
 147    return 0;
 148   }
 149
 150   // Alloc data
 151   data = new wxExecuteData;
 152
 153   // Create window
 154   window = CreateWindow(wxPanelClassName, NULL, 0, 0, 0, 0, 0, NULL,
 155                         (HMENU) NULL, wxGetInstance(), 0);
 156
 157   FARPROC ExecuteWindowInstance = MakeProcInstance((FARPROC) wxExecuteWindowCbk,
 158                                                    wxGetInstance());
 159
 160   SetWindowLong(window, GWL_WNDPROC, (LONG) ExecuteWindowInstance);
 161   SetWindowLong(window, GWL_USERDATA, (LONG) data);
 162
 163   data->process = result;
 164   data->window  = window;
 165   data->state   = sync;
 166   data->handler = (sync) ? NULL : handler;
 167
 168   dresult = (DWORD)CreateThread(NULL, 0,
 169                                 (LPTHREAD_START_ROUTINE)wxExecuteThread,
 170                                 (void *)data, 0, &tid);
 171   if (dresult == 0) {
 172     wxDebugMsg("wxExecute PANIC: I can't create the waiting thread !");
 173     DestroyWindow(window);
 174     return (long)result;
 175   }
 176
 177   if (!sync)
 178   {
 179     free(cl);
 180     return (long)result;
 181   }
 182
 183   // waiting until command executed
 184   while (data->state)
 185     wxYield();
 186
 187   free(cl);
 188   return 0;
 189 #else
 190   long instanceID = WinExec((LPCSTR) WXSTRINGCAST command, SW_SHOW);
 191   if (instanceID < 32) return(0);
 192
 193   if (sync) {
 194     int running;
 195     do {
 196       wxYield();
 197       running = GetModuleUsage((HANDLE)instanceID);
 198     } while (running);
 199   }
 200   return(instanceID);
 201 #endif
 202 }