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 "utils.h"
  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 static DWORD wxExecuteThread(wxExecuteData *data)
  76 {
  77   WaitForSingleObject(data->process, INFINITE);
  78
  79   // Send an implicit message to the window
  80   SendMessage(data->window, wxEXECUTE_WIN_MESSAGE, 0, (LPARAM)data);
  81
  82   return 0;
  83 }
  84
  85 LRESULT APIENTRY _EXPORT wxExecuteWindowCbk(HWND hWnd, UINT message,
  86                                             WPARAM wParam, LPARAM lParam)
  87 {
  88   wxExecuteData *data = (wxExecuteData *)lParam;
  89
  90   if (message == wxEXECUTE_WIN_MESSAGE) {
  91     DestroyWindow(hWnd);
  92     if (data->handler)
  93       data->handler->OnTerminate((int)data->process);
  94
  95     if (data->state)
  96       data->state = 0;
  97     else
  98       delete data;
  99   }
 100   return 0;
 101 }
 102
 103 extern char wxPanelClassName[];
 104
 105 long wxExecute(const wxString& command, bool sync, wxProcess *handler)
 106 {
 107   if (command == "")
 108     return 0;
 109
 110 #ifdef __WIN32__
 111   char * cl;
 112   char * argp;
 113   int clen;
 114   HINSTANCE result;
 115   DWORD dresult;
 116   HWND window;
 117   wxExecuteData *data;
 118   DWORD tid;
 119
 120   // copy the command line
 121   clen = command.Length();
 122   if (!clen) return -1;
 123   cl = (char *) calloc( 1, 256);
 124   if (!cl) return -1;
 125   strcpy( cl, WXSTRINGCAST command);
 126
 127   // isolate command and arguments
 128   argp = strchr( cl, ' ');
 129   if (argp)
 130     *argp++ = '\0';
 131
 132 #ifdef __GNUWIN32__
 133   result = ShellExecute((HWND) (wxTheApp->GetTopWindow() ? (HWND) wxTheApp->GetT
 134 opWindow()->GetHWND() : NULL),
 135      (const wchar_t) "open", (const wchar_t) cl, (const wchar_t) arg
 136 p,i
 137      (const wchar_t) NULL, SW_SHOWNORMAL);
 138 #else
 139   result = ShellExecute( (HWND) (wxTheApp->GetTopWindow() ? wxTheApp->GetTopWindow()->GetHWND() : NULL),
 140      "open", cl, argp, NULL, SW_SHOWNORMAL);
 141 #endif
 142
 143   if (((long)result) <= 32) {
 144    free(cl);
 145    return 0;
 146   }
 147
 148   // Alloc data
 149   data = new wxExecuteData;
 150
 151   // Create window
 152   window = CreateWindow(wxPanelClassName, NULL, 0, 0, 0, 0, 0, NULL,
 153                         (HMENU) NULL, wxGetInstance(), 0);
 154
 155   FARPROC ExecuteWindowInstance = MakeProcInstance((FARPROC) wxExecuteWindowCbk,
 156                                                    wxGetInstance());
 157
 158   SetWindowLong(window, GWL_WNDPROC, (LONG) ExecuteWindowInstance);
 159   SetWindowLong(window, GWL_USERDATA, (LONG) data);
 160
 161   data->process = result;
 162   data->window  = window;
 163   data->state   = sync;
 164   data->handler = (sync) ? NULL : handler;
 165
 166   dresult = (DWORD)CreateThread(NULL, 0,
 167                                 (LPTHREAD_START_ROUTINE)wxExecuteThread,
 168                                 (void *)data, 0, &tid);
 169   if (dresult == 0) {
 170     wxDebugMsg("wxExecute PANIC: I can't create the waiting thread !");
 171     DestroyWindow(window);
 172     return (long)result;
 173   }
 174
 175   if (!sync)
 176   {
 177     free(cl);
 178     return (long)result;
 179   }
 180
 181   // waiting until command executed
 182   while (data->state)
 183     wxYield();
 184
 185   free(cl);
 186   return 0;
 187 #else
 188   long instanceID = WinExec((LPCSTR) WXSTRINGCAST command, SW_SHOW);
 189   if (instanceID < 32) return(0);
 190
 191   if (sync) {
 192     int running;
 193     do {
 194       wxYield();
 195       running = GetModuleUsage((HANDLE)instanceID);
 196     } while (running);
 197   }
 198   return(instanceID);
 199 #endif
 200 }