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

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

In case you are going to exploit VFP for greater than informal GUI adjustments in your application, this e-book is a wealth of information. Concise, in-depth, and a stunning addition on your assortment.

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Extra info for 1001 Things You Always Wanted to Know About Visual FoxPro

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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.

FULLNAME accesses a property of the Visual FoxPro application object that contains the full path and file name which was used to start VFP FULLPATH('') or FULLPATH( CURDIR() ) returns the full drive and directory of the current working directory (including the terminal "\"). SYS(5) returns the default drive (including the ':') CD shows the current drive and directory in the current output window – but will also change drive and directory in one single command CHDIR will change to the specified Drive/Driectory (just like CD) but will not report the current status (and so does not mess up your forms) CURDIR() returns just the current directory (with terminal '\') but not the drive How to set a path programmatically As an alternative to hard coding the paths in your setup file, it is possible to derive the path (assuming that you use standard directory structures) using the native Visual FoxPro functions.

T. T. ENDIF *** Look for an occurrence of this ID as a Window Name DECLARE INTEGER FindWindow IN Win32Api AS FindApp String, String IF FindApp( NULL, lcUniqueID ) > 0 *** We found one! T. ELSE *** Create a new window with this ID DEFINE WINDOW _Semaphore_ IN DESKTOP FROM 1,1 TO 2,2 TITLE lcUniqueID ENDIF *** Return Status Flag RETURN llRetVal To use this function, it is simplest to include a #DEFINE in your standard startup file so that you can specify a new unique ID for each application: #DEFINE APPID "App0001-99" IF IsAppRun( APPID ) QUIT ENDIF This very neat solution avoids both the problem of 'dangling files' in the semaphore method and that of changing the caption in the API method because the window can only be created and maintained within an instance of the application.

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