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
GDI+: Storing content of the Clipboard to a bitmap file
How to change display settings: screen resolution, screen refresh rate
Capturing keyboard activity of another application with the Raw Input API (VFP9)
Custom GDI+ class
Printing Image File, programmatically set print page orientation to landscape
How to convert a bitmap file to monochrome format (1 bpp)
HOWTO: Use the Win32 API to Access File Dates and Times
How to print FoxPro form
How to print a bitmap file
Winsock: sending email messages (SMTP, port 25)
Using WM_COPYDATA for interprocess communication (VFP9)
Mapping and disconnecting network drives
Custom HttpRequest class (WinHTTP)
How to put a horizontal text scrolling on the form (a news line, marquee)
Using FoxTray ActiveX control: System Tray Icon and menu attached to VFP form
Using Video Capture: displaying on FoxPro form frames and previewing video obtained from a digital camera
Using EnumPrinters function to enumerate locally installed printers
Windows Shell Icons displayed and exported to ICO files (Vista)
Custom FTP Class for Visual FoxPro application
Running MSDOS Shell as a child process with redirected input and output (smarter RUN command)
How to set Creation Date/Time for a folder (WinNT)
Custom HttpRequest class (WinINet)
How to copy the image of a form to the Clipboard using Bitmap API functions
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: 94  
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 (54.82.69.190)
4 sec.Function: 'GetIconInfo'
6 sec.
Function group: 'Raw Input'
9 sec.
Function group: 'Window Procedure'
2 day(s)Function: 'GetProp'
 Example: 'Retrieving information specific to the current Time Zone'
 Function: 'NetGetDCName'
Function group: 'Network Management'
 Example: 'Class for sound recording'
Google
Advertise here!