Using Win32 functions in Visual FoxPro Image Gallery
Memory Management
..msdn
CopyMemory
FillMemory
GetProcessHeap
GetProcessHeaps
GlobalAlloc
GlobalFree
GlobalLock
GlobalMemoryStatus
GlobalReAlloc
GlobalSize
GlobalUnlock
HeapAlloc
HeapCompact
HeapFree
HeapLock
HeapReAlloc
HeapSize
HeapUnlock
HeapValidate
HeapWalk
LocalAlloc
LocalFree
LocalSize
VirtualAllocEx
VirtualFreeEx
ZeroMemory
Code examples:
Accessing LSA Policy object (Local Security Authority)
Adding and deleting Scheduled Tasks using NetScheduleJob API functions
Adding and deleting User Accounts
Adding printer to the list of supported printers for the specified server
Adding user-defined items to the Control Menu of VFP form (requires VFP9)
Attaching menu to a top-level form
Browsing Windows Known Folders (Special Folders)
Compressing and decompressing files with Windows API Runtime Library routines
Converting command-line string to a set of Unicode argument strings (WinNT only)
Creating the Open dialog box to specify the drive, directory, and name of a file to open
Creating the Save dialog box to specify the drive, directory, and name of a file to save
Custom HttpRequest class (WinHTTP)
Deleting files into the Recycle Bin
Displaying dimmed window behind VFP top-level form
Displaying standard progress dialog box when copying files
Displaying system dialog that selects a folder
Dynamic strings implemented through VFP Custom class
Enumerating data formats currently available on the clipboard
Enumerating files opened on the network
Extensible Storage Engine class library
How to assemble an array of strings and pass it to external function
How to display a user-defined icon in the MessageBox dialog
How to display advanced Task Dialog (Vista)
How to display the Print property sheet
How to display the Properties dialog box for a file (ShellExecuteEx)
How to enumerate sessions and processes on a specified terminal server
How to enumerate terminal servers within the specified Windows domain
How to enumerate, add and delete shares on the local computer (WinNT/XP)
How to extract frames from AVI files
How to ping a remote site using ICMP API calls
How to prevent users from accessing the Windows Desktop and from switching to other applications
How to remove a directory that is not empty
How to write and read Window Properties for the specified window
Loading a string resource from an executable file
MapiSendMail class for Visual FoxPro application
Mapping and disconnecting network drives
Obtaining names of local and global groups for current user (WinNT/XP/2K)
Passing data records between VFP applications via the Clipboard
Printing Image File, programmatically set print page orientation to landscape
Reading and setting explicit Application User Model ID for the current process (Win7)
Reading entries from Event logs
Retrieving configuration information for the specified server (Win2000/XP)
Retrieving the command line for the VFP session
Sending email messages with Simple MAPI
Shortcut Menu Class
Starting a dialog box for connecting to network resources and passing input parameters
Storing the environment strings in cursor
URL: splitting into its component parts
Using Change Notification Objects to monitor changes to the printer or print server
Using WM_COPYDATA for interprocess communication (VFP9)
Windows Shell Icons displayed and exported to ICO files (Vista)
Winsock: connecting to a news server (NNTP, port 119)
Writing entries to custom Event Log
Adding user-defined items to the Control Menu of VFP form (requires VFP9)

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Before you begin:
User-defined items can be added to the Control Menu of any VFP form. In VFP9 it is also possible to link such menu items to a method of the form.

This code sample is a result of fast and productive discussion on UT. Many thanks to Carlos Alloatti.



Note: VFP9 SP1 is required. I have found that on older VFP9 versions (e.g. 09.00.000.2412) the Close menu item may not close the form had the Control Menu been modified.

For more VFP9 BINDEVENT() examples see also:
  • Adding icon to the systray (requires VFP9)
  • How to block the PrintScreen key
  • Dragging files from Explorer window and dropping them on FoxPro control (requires VFP9)
  • Transparent Menu Class (requires VFP9)

    See also:
  • How to hot-track menu item selection in top-level form
  • Transparent Menu on top-level form
  • Using FoxTray ActiveX control: System Tray Icon and menu attached to VFP form
  • Adding icon to the systray (requires VFP9)

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    6127 bytes  
    Created: 2006-05-08 13:12:49  
    Modified: 2007-01-06 18:15:52  
    Visits in 7 days: 131  
    Listed functions:
    CallWindowProc
    CreatePopupMenu
    GetSystemMenu
    GetWindowLong
    GlobalAlloc
    GlobalFree
    GlobalSize
    InsertMenuItem
    WindowProc
    Printer friendly API declarations
    My comment:
    The InsertMenu function has been superseded by the InsertMenuItem function. You can still use InsertMenu, however, if you do not need any of the extended features of InsertMenuItem (e.g. inserting popups).

    Using very similar means, Control Menu items can be modified, disabled or removed.
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    User Contributed Notes:
    A.M. | 2006-09-24 08:17:58
    Burkhard Stiller noticed that the user-defined control menu items disappeared upon the form's BorderStyle property changed during runtime.
    jetimms | 2006-09-29 16:51:50
    The are nice examples, except I can't figure out how to get the menu items to do anything. In other words, how do I get "Option 1" to open another form, or run a .prg?

    Thanks,

    JETimms
    A.M. | 2006-09-30 08:58:11
    Inside the code, PROCEDURE OnMenuItemClicked clearly shows how to do that. Note that this is only available in VFP9 due to its improved BINDEVENT() function.

    VFP8 displays UDF menu items but is not capable to link them to UDF procedures or methods without using external libraries.
    JETimms | 2006-10-02 08:32:16
    Oi vey, sorry for the previous complaint. I didn't know this was a subscription site. I'll sniff the answer out elsewhere.

    Great site, otherwise. It helped get me a quarter of the way finished with my project.

    I'll try and convince my manager to get us an account.
    Christophe Chenavier | 2007-02-25 02:29:32
    Well done,

    But in your example, if we replace oForm.Visible=.T.
    with oForm.Show(1), the user-defined control menu items disappeared.

    Question : Why that code does not work with modals forms ?
    runtimedll | 2007-04-30 02:14:15
    Put VFP runtime Dll In your Program Forld.

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