Download 1001 Things You Always Wanted to Know About Visual FoxPro by Marcia Akins, Andy Kramek, Rick Schummer, John Hosier PDF

By Marcia Akins, Andy Kramek, Rick Schummer, John Hosier

If you are going to exploit VFP for greater than informal GUI adjustments for your application, this ebook is a wealth of information. Concise, in-depth, and a beautiful addition on your assortment.

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It seems to us that there can be nothing more irritating to a user who has just specifically chosen 'Quit' than to be asked if they really meant to do it. If your user interface is designed in such a way that a user can "accidentally" shut down your application then we would, very respectfully, suggest that you may need to re-visit the UI design. 30 1001 Things You Always Wanted to Know About Visual FoxPro Chapter 2: Functions and Procedures 31 Chapter 2 Functions and Procedures "We can forgive a man for making a useful thing as long as he does not admire it.

NOWAIT *** Roll Back Any Transactions IF TXNLEVEL() > 0 DO WHILE TXNLEVEL() > 0 ROLLBACK ENDDO ENDIF Now we need to handle any uncommitted changes. Of course we cannot know how many forms there may be open, or what datasession each form is actually using. The solution is to use the Forms collection and to work through each form's datasession reverting all tables in that datasession and closing them before releasing the form itself. DataSessionID *** Has it any tables open? T. Release() NEXT Having got rid of the forms we can now close any remaining tables and their associated databases, and clear out any programs in memory, memory variables and libraries: *** Now Close other tables and databases CLOSE TABLES ALL Chapter 1: Controlling the VFP Environment 27 CLOSE DATA ALL *** Release Memory Variables, Procedures *** and Class Libraries CLEAR MEMORY CLEAR ALL SET PROCEDURE TO SET CLASSLIB TO With all of this gone we can safely restore the command window and the default system menu and clear out any global settings defined using the ON commands: *** Get the command window and system menu back ACTIVATE WINDOW COMMAND SET SYSMENU TO DEFAULT *** Clear global settings ON SHUTDOWN ON ERROR ON KEY ON ESCAPE WAIT CLEAR The final step is to cancel any open programs (including this one).

The GetOption() method outlined above) can be accessed. How do I get rid of the system toolbars? When you start Visual FoxPro, one or more of the system toolbars will normally be visible. ) Fortunately all of the system toolbars can be addressed using their window names (which are actually the same as their Captions) and so manipulating them is relatively simple. The simplest way of ensuring that only those toolbars that you require are visible is to create an array of all the toolbar names, then loop through it, testing to see if each is visible and hiding those that are not required.

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