Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Custom GDI+ class
How to make a VFP form fading out when released (GDI version)
How to put a horizontal text scrolling on the form (a news line, marquee)
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
Obtaining names and positions for shortcuts located on the Windows Desktop
Storing content of the Clipboard to a bitmap file
GDI+: Implementing image scrolling with inertia
Placing an arbitrary rectangular area of main VFP window on the Clipboard
Enumerating devices installed on the local machine
How to copy the image of a form to the Clipboard using Bitmap API functions
Creating a clipping region from the path selected into the device context of a form
Splash Screen for the VFP application
Browsing Windows Known Folders (Special Folders)
How to find which fonts Windows uses for drawing captions, menus and message boxes
Vertical Label control
Round FoxPro form
Class for sound recording
Reading and setting system access privileges for the current process
Subclassing CommandButton control to create BackColor property
Listing child windows for the Windows desktop
Scanning the hierarchy of child windows down from the main VFP window
How to print picture stored in enhanced-format metafile (*.emf)
Using File Mapping for enumerating files opened by Visual FoxPro
Winsock: connecting to a news server (NNTP, port 119)
Disabling mouse and keyboard input for the main VFP window (with the app still running)

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? BlockInput (1)
? "*** Input blocked"

FOR ii=1 TO 10
    DO dataproc

? BlockInput (0)
? "*** Input unblocked"

PROCEDURE  dataproc
* it is just an emulation of a time-consuming procedure
    LOCAL ii
    WAIT WINDOW NOWAIT "Creating cursor..."
    CREATE CURSOR cs (id N(6), dt D)
    FOR ii=1 TO 10000
        INSERT INTO cs VALUES (ii, date()-ii)
    ? Chr(9) + "- cursor created at " + TTOC (datetime())
    USE IN cs

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509 bytes  
Created: 2001-08-02 12:00:00  
Modified: 2008-10-03 15:25:57  
Visits in 7 days: 96  
Listed functions:
Printer friendly API declarations
My comment:
WinNT4, User32.dll of apr-99: Cannot find entry point BlockInput in the DLL.

During the cycle of N times running the DATAPROC, the user input is practically blocked. You can not even access the Task Manager.

Though the good old CTRL+ALT+DEL still can break through. It is quite helpful in case you have a run-time error within this cycle. Otherwise you could not be able to get out.

Note that no key presses reach the keyboard buffer during the blocking. And this is not the delay like the Sleep function creates.
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