Author: Vimil Saju

How to get the number of files in recycle bin and the size of recycle bin 

Answer:

To get the number files in the recycle bin, you have to use the function 
SHQueryRecycleBin. this function is available in the shell32 module. This function 
is supported in Win98 or above. 

The function declarartion is as shown below 
1   
2   function SHQueryRecycleBin(pszrtootpath: pchar; QUERYRBINFO: pshqueryrbinfo): 
3   integer;
4     stdcall;
5     external 'shell32' name 'SHQueryRecycleBinA';


The SHQUERYBINFO Structure is as follows 

6   type
7     SHQUERYRBINFO = packed record
8       cbSize: integer; // size of structure
9       i64Size: int64; // size of recycle bin
10      i64NumItems: int64; // number of items in recycle bin.
11    end;


The cbsize must be set before calling the function 

The first parameter must be the drive of which the recyclebin must be queried. 
If the drive 'C' then the parameter must be'C:\'; if the parameter is empty then 
the function queries the recyclebin on all the harddisks as a whole. 

the second parameter is a pointer to SHQUERYBINFO Structure. 

The function returns 0 if successful. 

The function can be called as follows 

12  var
13    rbinfo: SHQUERYRBINFO;
14  begin
15    SHQueryRecycleBin('C:\', @rbinfo);
16  end;