Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
GDI+ fun: roach-infested desktop
GDI+: creating a gradient
GDI+: retrieving list of available image encoders and image decoders
How to delete all print jobs for a printer
How to enumerate, add and delete shares on the local computer (WinNT/XP)
How to Start a Process as Another User (NT/XP/2K)
Monitoring changes occurring within a directory
Obtaining a handle to the desktop associated with the calling thread
Pocket PC: creating backup for the System Registry
Pocket PC: custom RAPI class for operating with files and folders on mobile device
Power capabilities of the system: battery, UPS, sleep and hibernation modes, processor throttling
Printing text with the Escape function
Reading data from INI files
Retrieving geometrical parameters of the system desktop window
Retrieving long values associated with the class of the VFP window
Retrieving Printer Device Context using PrintDlg function
Retrieving the names of all sections in an initialization file
Testing an ODBC connection for supporting specific functionality
The DetectAutoProxyUrl function identifies the auto-config script location
The original LoadPicture() function in VFP returns valid handles to bitmaps, icons, cursors, and metafiles
Using the Semaphore object
Adding and deleting User Accounts
Compressing and decompressing files with Windows API Runtime Library routines
Connecting a local device to a network resource
Changing file attributes

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LPARAMETERS  lpFileName

#DEFINE FILE_ATTRIBUTE_READONLY       1  
#DEFINE FILE_ATTRIBUTE_HIDDEN         2  
#DEFINE FILE_ATTRIBUTE_SYSTEM         4  
#DEFINE FILE_ATTRIBUTE_DIRECTORY     16  
#DEFINE FILE_ATTRIBUTE_ARCHIVE       32  
#DEFINE FILE_ATTRIBUTE_NORMAL       128  
#DEFINE FILE_ATTRIBUTE_TEMPORARY    512  
#DEFINE FILE_ATTRIBUTE_COMPRESSED  2048  

DECLARE SHORT SetFileAttributes IN kernel32;
    STRING lpFileName, INTEGER dwFileAttributes

DECLARE INTEGER GetFileAttributes IN kernel32 STRING lpFileName 

* read current attributes for this file
dwFileAttributes = GetFileAttributes (lpFileName)

IF dwFileAttributes = -1
* the file does not exist
    RETURN
ENDIF

IF dwFileAttributes > 0
    * read-only attribute to be set
    dwFileAttributes = BitOr(dwFileAttributes, FILE_ATTRIBUTE_READONLY)

    * archive attribute to be removed
    IF BitAnd(dwFileAttributes, FILE_ATTRIBUTE_ARCHIVE) = FILE_ATTRIBUTE_ARCHIVE
        dwFileAttributes = dwFileAttributes - FILE_ATTRIBUTE_ARCHIVE
    ENDIF

    * setting selected attributes
    = SetFileAttributes (lpFileName, dwFileAttributes)
ENDIF


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1120 bytes  
Created: 2001-08-14 12:00:00  
Modified: 2007-08-02 14:45:37  
Visits in 7 days: 25  
Listed functions:
GetFileAttributes
SetFileAttributes
Printer friendly API declarations
My comment:
Pass a file name to this procedure. This code sets read-only and clears archive attributes for the selected file.

DOS command ATTRIB can be used for the same purpose:
ATTRIB -R c:\mydir\*.* /S
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