Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
Adding and deleting Scheduled Tasks using NetScheduleJob API functions
Capturing keyboard activity of another application with the Raw Input API (VFP9)
Enumerating printer drivers installed
How to change display settings: screen resolution, screen refresh rate
Setting the date and time that a file was created
Windows Shell Icons displayed and exported to ICO files (Vista)
GDI+: Implementing image scrolling with inertia
Displaying dimmed window behind VFP top-level form
Using WM_COPYDATA for interprocess communication (VFP9)
How to display a user-defined icon in the MessageBox dialog
Extensible Storage Engine class library
How to convert a bitmap file to monochrome format (1 bpp)
Converting image file to .ICO file
How to detect if additional monitor is connected and active
Printing Image File, programmatically set print page orientation to landscape
Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
How to copy the image of a form to the Clipboard using Bitmap API functions
How to register custom Event Log source
How to display Windows On-Screen Keyboard
Moving shortcut to a specified position on the Windows Desktop
Using the NetMessageBufferSend to send messages on the network
Detecting changes in connections to removable drives (VFP9)
Obtaining names and positions for shortcuts located on the Windows Desktop
Disabling mouse and keyboard input for the main VFP window (with the app still running)

User rating: 0/10 (0 votes)
Rate this code sample:
  • ~
More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
DECLARE INTEGER BlockInput IN user32 INTEGER fBlockIt

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

FOR ii=1 TO 10
    DO dataproc
ENDFOR

? 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)
    ENDFOR
    WAIT CLEAR
    ? Chr(9) + "- cursor created at " + TTOC (datetime())
    USE IN cs
RETURN

User rating: 0/10 (0 votes)
Rate this code sample:
  • ~
509 bytes  
Created: 2001-08-02 12:00:00  
Modified: 2008-10-03 15:25:57  
Visits in 7 days: 142  
Listed functions:
BlockInput
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.
Word Index links for this example:
Translate this page:
  Spanish    Portuguese    German    French    Italian  
FreeTranslation.com offers instant, free translations of text or web pages.
User Contributed Notes:
There are no notes on this subject.


Copyright 2001-2014 News2News, Inc. Before reproducing or distributing any data from this site please ask for an approval from its owner. Unless otherwise specified, this page is for your personal and non-commercial use. The information on this page is presented AS IS, meaning that you may use it at your own risk. Microsoft Visual FoxPro and Windows are trade marks of Microsoft Corp. All other trademarks are the property of their respective owners. 

Privacy policy
Credits: PHP (4.4.9), an HTML-embedded scripting language, MySQL (5.1.68), the Open Source standard SQL database, AceHTML Freeware Version 4, freeware HTML Editor of choice.   Hosted by Korax Online Inc.
Last Topics Visited (54.161.235.83)
5 sec.
Function group: 'HTTP Functions (WinHTTP)'
1.93 min.Example: 'How to delete a service object'
2.12 min.Example: 'Attaching menu to a top-level form'
Google
Advertise here!