I try to find the path from GPL Ghostscript ..
I find the path ... and is installed 8.60.
Now how i can make QSettings read only...
to not make 39 new Regedit empty path?


Qt Code: 
  1. /* find gpl GhostScript path or exe */
  2. QString PS_utils::getGSDefaultExeName()
  3. {
  4. 	QString gsName;
  5. #if defined Q_WS_WIN
  6.     QFileInfo Pinfo;
  7. 	// Try to locate GhostScript thanks to the qsetting
  8. 	gsName = "gswin32c.exe";
  9.     for(int i=0;i<99;i++)  {
  10.         /* loop all avaiable version on 8+ */
  11.         QSettings gs_sett("HKEY_LOCAL_MACHINE\\Software\\GPL Ghostscript\\8."+QString("%1").arg(100 - i),QSettings::NativeFormat);
  12.         if (gs_sett.allKeys().size() > 2) {
  13.            if (gs_sett.value("GS_DLL").toString().size() > 4) {
  14.                Pinfo.setFile(gs_sett.value("GS_DLL").toString());
  15.                return gsName.prepend(Pinfo.absolutePath()+"/");
  16.            }
  17.        }
  18.     }  
  19.     for(int e=0;e<99;e++)  {
  20.         /* loop all avaiable version on 7+ */
  21.         QSettings gs_sett7("HKEY_LOCAL_MACHINE\\Software\\GPL Ghostscript\\7."+QString("%1").arg(100 - e),QSettings::NativeFormat);
  22.         if (gs_sett7.allKeys().size() > 2) {
  23.            if (gs_sett7.value("GS_DLL").toString().size() > 4) {
  24.                Pinfo.setFile(gs_sett7.value("GS_DLL").toString());
  25.                return gsName.prepend(Pinfo.absolutePath()+"/");
  26.            }
  27.        }
  28.     } 
  29.     /* win not having GPL Ghostscript ! */
  30.     gsName = "gs";   
  31. #else
  32. 	gsName = "gs";
  33. #endif
  34. 	return gsName;
  35. }
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