FileDelete
Deletes the specified file in a local folder of the client terminal.
bool FileDelete(
const string file_name,
int common_flag=0
); |
Parameters
file_name
[in] File name.
common_flag=0
[in] Flag determining the file location. If common_flag = FILE_COMMON, then the file is located in a shared folder for all client terminals \Terminal\Common\Files. Otherwise, the file is located in a local folder.
Return Value
Note
Example:
//--- show the window of input parameters when launching the script
#property script_show_inputs
//--- date for old files
input datetime InpFilesDate=D'2013.01.01 00:00';
//+------------------------------------------------------------------+
//| Script program start function |
//+------------------------------------------------------------------+
void OnStart()
{
string file_name; // variable for storing file names
string filter="*.txt"; // filter for searching the files
datetime create_date; // file creation date
string files[]; // list of file names
int def_size=25; // array size by default
int size=0; // number of files
//--- allocate memory for the array
ArrayResize(files,def_size);
//--- receive the search handle in the local folder's root
long search_handle=FileFindFirst(filter,file_name);
//--- check if FileFindFirst() executed successfully
if(search_handle!=INVALID_HANDLE)
{
//--- searching files in the loop
do
{
files[size]=file_name;
//--- increase the array size
size++;
if(size==def_size)
{
def_size+=25;
ArrayResize(files,def_size);
}
//--- reset the error value
ResetLastError();
//--- receive the file creation date
create_date=(datetime)FileGetInteger(file_name,FILE_CREATE_DATE,false);
//--- check if the file is old
if(create_date<InpFilesDate)
{
PrintFormat("%s file deleted!",file_name);
//--- delete the old file
FileDelete(file_name);
}
}
while(FileFindNext(search_handle,file_name));
//--- close the search handle
FileFindClose(search_handle);
}
else
{
Print("Files not found!");
return;
}
//--- check what files have remained
PrintFormat("Results:");
for(int i=0;i<size;i++)
{
if(FileIsExist(files[i]))
PrintFormat("%s file exists!",files[i]);
else
PrintFormat("%s file deleted!",files[i]);
}
} |
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