[Meta-diff-devel] CompareShellEx CompareShellEx.dpr,1.5,1.6

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Update of /cvsroot/meta-diff/CompareShellEx
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv8934/CompareShellEx

Modified Files:
	CompareShellEx.dpr 
Log Message:
- Fixed a bug in unregistering the shell extension.
- Added the possibility to register for the current user only.

Index: CompareShellEx.dpr
===================================================================
RCS file: /cvsroot/meta-diff/CompareShellEx/CompareShellEx.dpr,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** CompareShellEx.dpr	17 Aug 2005 21:57:14 -0000	1.5
--- CompareShellEx.dpr	26 Aug 2005 20:24:06 -0000	1.6
***************
*** 342,350 ****
  end;
  
  procedure Install(hWnd:HWND;hInstance:HINST;lpszCmdLine:LPSTR;nCmdShow:Integer); stdcall;
  var
!     RetVal,i:Integer;
      dw:DWORD;
!     s,DllLoc,GUIDs:string;
      Reg:TRegistry;
  begin
--- 342,353 ----
  end;
  
+ // Disable hint H2077 about the unused "AddCount" if "UnInstallMsgBox" is not
+ // defined. Unfortunately, Delphi has no way to disable only specific hints.
+ {$HINTS OFF}
  procedure Install(hWnd:HWND;hInstance:HINST;lpszCmdLine:LPSTR;nCmdShow:Integer); stdcall;
  var
!     RetVal,AddCount,i:Integer;
      dw:DWORD;
!     p,s,DllLoc,GUIDs:string;
      Reg:TRegistry;
  begin
***************
*** 359,366 ****
          if (RetVal<>0) and (DllLoc<>'') then begin
              if not FileExists(ExtractFilePath(DllLoc)+ApplicationExe) then begin
!                 MessageBox(0,
!                     PChar('Please place '+LibraryName+'.dll into the same directory where '+
                          ApplicationExe+' is!'
!                     ),'Error',0
                  );
                  Exit;
--- 362,373 ----
          if (RetVal<>0) and (DllLoc<>'') then begin
              if not FileExists(ExtractFilePath(DllLoc)+ApplicationExe) then begin
!                 MessageBox(
!                     hWnd,
!                     PChar(
!                         'Please place '+LibraryName+'.dll into the same directory where '+
                          ApplicationExe+' is!'
!                     ),
!                     'Error',
!                     MB_OK or MB_ICONERROR
                  );
                  Exit;
***************
*** 368,379 ****
  
              GUIDs:=GUIDToString(CLSID_ContextMenuShellExtension);
              Reg:=TRegistry.Create;
              try
!                 Reg.RootKey:=HKEY_CLASSES_ROOT;
                  for i:=Low(RegKeys) to High(RegKeys) do begin
                      if i=Low(RegKeys) then
!                         s:=Format(RegKeys[i],[GUIDs])
                      else
!                         s:=RegKeys[i];
  
                      if not Reg.OpenKey(s,True) then
--- 375,400 ----
  
              GUIDs:=GUIDToString(CLSID_ContextMenuShellExtension);
+ 
              Reg:=TRegistry.Create;
              try
!                 AddCount:=0;
! 
!                 // HKEY_CLASSES_ROOT merges
!                 // HKEY_CURRENT_USER\SOFTWARE\Classes
!                 //     and
!                 // HKEY_LOCAL_MACHINE\SOFTWARE\Classes
!                 if lpszCmdLine='user' then begin
!                     Reg.RootKey:=HKEY_CURRENT_USER;
!                     p:='SOFTWARE\Classes\';
!                 end else begin
!                     Reg.RootKey:=HKEY_CLASSES_ROOT;
!                     p:='';
!                 end;
! 
                  for i:=Low(RegKeys) to High(RegKeys) do begin
                      if i=Low(RegKeys) then
!                         s:=p+Format(RegKeys[i],[GUIDs])
                      else
!                         s:=p+RegKeys[i];
  
                      if not Reg.OpenKey(s,True) then
***************
*** 391,394 ****
--- 412,417 ----
                          Reg.WriteString('',GUIDs);
                      Reg.CloseKey;
+ 
+                     Inc(AddCount);
                  end;
  
***************
*** 400,416 ****
                  Reg.WriteString(GUIDs,LibraryName);
                  Reg.CloseKey;
              finally
                  Reg.Free;
              end;
              SHChangeNotify(SHCNE_ASSOCCHANGED,SHCNF_IDLIST,nil,nil);
  {$IFDEF UnInstallMsgBox}
!             MessageBox(0,'Installation successful.',Libraryname+' '+VersionStr,0);
  {$ENDIF}
          end else
!             MessageBox(0,'Can''t locate '+LibraryName+'.dll','Error',0);
      except
!         on E:Exception do MessageBox(0,PChar(E.Message),'Exception',0);
      end;
  end;
  
  // Disable hint H2077 about the unused "RemoveCount" if "UnInstallMsgBox" is not
--- 423,457 ----
                  Reg.WriteString(GUIDs,LibraryName);
                  Reg.CloseKey;
+ 
+                 Inc(AddCount);
              finally
                  Reg.Free;
              end;
+ 
              SHChangeNotify(SHCNE_ASSOCCHANGED,SHCNF_IDLIST,nil,nil);
+ 
  {$IFDEF UnInstallMsgBox}
!             MessageBox(
!                 hWnd,
!                 PChar(
!                     IntToStr(AddCount)+
!                     ' entries have been added to the registry.'
!                 ),
!                 Libraryname+' '+VersionStr,
!                 MB_OK or MB_ICONINFORMATION
!             );
  {$ENDIF}
          end else
!             MessageBox(
!                 hWnd,
!                 'Can''t locate '+LibraryName+'.dll',
!                 'Error',
!                 MB_OK or MB_ICONERROR
!             );
      except
!         on E:Exception do MessageBox(hWnd,PChar(E.Message),'Exception',MB_OK or MB_ICONERROR);
      end;
  end;
+ {$HINTS ON}
  
  // Disable hint H2077 about the unused "RemoveCount" if "UnInstallMsgBox" is not
***************
*** 421,464 ****
      RemoveCount,i:Integer;
      Reg:TRegistry;
!     s:string;
      GUIDs:string;
  begin
      try
          GUIDs:=GUIDToString(CLSID_ContextMenuShellExtension);
          Reg:=TRegistry.Create;
          try
              RemoveCount:=0;
!             Reg.RootKey:=HKEY_CLASSES_ROOT;
              for i:=Low(RegKeys) to High(RegKeys) do begin
                  if i=Low(RegKeys) then
!                     s:=Format(RegKeys[i],[GUIDs])
                  else
!                     s:=RegKeys[i];
  
                  if Reg.DeleteKey(s) then
                      Inc(RemoveCount);
- 
-                 // For Windows NT and above, remove oneself from the list of
-                 // approved shell extensions.
-                 Reg.RootKey:=HKEY_LOCAL_MACHINE;
-                 if not Reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved',True) then
-                     RaiseLastOSError;
-                 if Reg.DeleteValue(GUIDs) then
-                     Inc(RemoveCount);
-                 Reg.CloseKey;
              end;
          finally
              Reg.Free;
          end;
          SHChangeNotify(SHCNE_ASSOCCHANGED,SHCNF_IDLIST,nil,nil);
  {$IFDEF UnInstallMsgBox}
!         MessageBox(0,PChar(
!             IntToStr(RemoveCount)+' entries have been removed from the registry. '+
!             'Please remove any files manually.'),
!             Libraryname+' '+VersionStr,0
          );
  {$ENDIF}
      except
!         on E:Exception do MessageBox(0,PChar(E.Message),'Exception',0);
      end;
  end;
--- 462,525 ----
      RemoveCount,i:Integer;
      Reg:TRegistry;
!     p,s:string;
      GUIDs:string;
  begin
      try
          GUIDs:=GUIDToString(CLSID_ContextMenuShellExtension);
+ 
          Reg:=TRegistry.Create;
          try
              RemoveCount:=0;
! 
!             // HKEY_CLASSES_ROOT merges
!             // HKEY_CURRENT_USER\SOFTWARE\Classes
!             //     and
!             // HKEY_LOCAL_MACHINE\SOFTWARE\Classes
!             if lpszCmdLine='user' then begin
!                 Reg.RootKey:=HKEY_CURRENT_USER;
!                 p:='SOFTWARE\Classes\';
!             end else begin
!                 Reg.RootKey:=HKEY_CLASSES_ROOT;
!                 p:='';
!             end;
! 
              for i:=Low(RegKeys) to High(RegKeys) do begin
                  if i=Low(RegKeys) then
!                     s:=p+Format(RegKeys[i],[GUIDs])
                  else
!                     s:=p+RegKeys[i];
  
                  if Reg.DeleteKey(s) then
                      Inc(RemoveCount);
              end;
+ 
+             // For Windows NT and above, remove oneself from the list of
+             // approved shell extensions.
+             Reg.RootKey:=HKEY_LOCAL_MACHINE;
+             if not Reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved',True) then
+                 RaiseLastOSError;
+             if Reg.DeleteValue(GUIDs) then
+                 Inc(RemoveCount);
+             Reg.CloseKey;
          finally
              Reg.Free;
          end;
+ 
          SHChangeNotify(SHCNE_ASSOCCHANGED,SHCNF_IDLIST,nil,nil);
+ 
  {$IFDEF UnInstallMsgBox}
!         MessageBox(
!             hWnd,
!             PChar(
!                 IntToStr(RemoveCount)+
!                 ' entries have been removed from the registry. '+
!                 'Please remove any files manually.'
!             ),
!             Libraryname+' '+VersionStr,
!             MB_OK or MB_ICONINFORMATION
          );
  {$ENDIF}
      except
!         on E:Exception do MessageBox(hWnd,PChar(E.Message),'Exception',MB_OK or MB_ICONERROR);
      end;
  end;