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- Welcome to dBASE 5.0 for DOS
- -------------------------------------
-
- This file contains important, late-breaking information about
- dBASE 5.0 for DOS, including revisions to the documentation.
-
- TABLE OF CONTENTS
- -----------------
- 1. HOW TO CONTACT BORLAND
- 2. RELEASE NOTES
- 3. DOCUMENTATION UPDATE
-
-
- 1. HOW TO CONTACT BORLAND
- -------------------------
- The Borland Assist program offers a range of technical support
- plans to fit the different needs of individuals, consultants,
- large corporations, and developers. To receive help with this
- product, send in the registration card and select the Borland
- Assist plan which best suits your needs. North American customers
- can register by phone 24 hours a day by calling 1-800-845-0147.
- For additional details on these and other Borland services, see
- the Borland Assist Support and Services Guide included with this
- product.
-
- 2. RELEASE NOTES
- ----------------
-
- Extended memory
- ---------------
- If you don't have 3 MB of extended memory allocated for dBASE,
- you may encounter an error message. For example, if you are using
- smartdrv or if you have DOS loaded in high memory, not all of the
- 3MB of extended memory will be available for dBASE.
-
- If necessary, you can reduce the amount of extended memory that
- dBASE requires by editing the PhysMin statement in the
- DBASEDOS.INI file as follows:
-
- change
-
- ;PhysMin=3M
-
- to
-
- PhysMin=2M
-
- Doing this reduces the amount of extended memory available to
- dBASE and will decrease performance.
-
- Caution: Do not reduce PhysMin to less than 2MB.
-
-
- Using dot syntax with @...GET/READ, ACCEPT, and INPUT commands
- --------------------------------------------------------------
- Properties associated with an object should not be used as memory
- variable input for the @...GET/READ, ACCEPT, and INPUT commands.
- These properties are evaluated and set using dBASE 5.0 dot
- syntax. Use of object properties with the @...GET/READ, ACCEPT,
- and INPUT commands will result in a syntax error. To change or
- display the value of a property using these commands,
- store/retrieve the value to/from a memory variable.
-
- Example:
- mVar = MyForm.Text
- @ 2, 2 GET mVar
- READ
- MyForm.Text = mVar
-
-
- Using the SAVE TO and RESTORE FROM commands in dBASE 5.0
- --------------------------------------------------------
- The SAVE TO command used for saving memory variables to a file
- does not include object properties in the .mem file. If the value
- of an object property needs to be saved to a memory file, store
- the value into a memory variable which can then be saved to a
- memory file. The object property can then be retrieved by
- RESTORING the memory variable and replacing the object's property
- with the value of the memory variable.
-
- Example:
-
- mVar = MyForm.Text
- SAVE TO mVarFile ALL LIKE mVar
- ...
- RESTORE FROM mVarFile ADDITIVE
- MyForm.Text = mVar
-
-
- Using "#", "*", ";" symbols in a compile filelist
- -------------------------------------------------------
- When creating a file list for dBASE 5.0 compilation, do not
- insert remark lines by using the symbols "#", "*", or ";". Using
- such symbols will result in a "Invalid path or file name" message
- when issuing a COMPILE @<filelist> command.
-
-
- Sample DOS Form files
- ---------------------------
- Many of the sample DOS Form files (DFM) located in the CUA
- Samples directory may not be easily modified using the Form
- Designer. These forms were created using memory variables and
- database files that may not be active when attempting to edit the
- form. You can easily run any of the sample form files from the
- command window.
-
- Example:
-
- SET DIRE TO CUA_SAMPLES
- DO ASCIIC
-
-
- Selecting Program | Run with Arguments
- --------------------------------------
- Entering values into Program | Arguments applies to all programs
- executed with Program | Run. If you select Program | Run while
- undeclared variables still exist in Program | Arguments, a
- "variable not found" error will occur. Remove or initialize
- undeclared variables entered in Program | Arguments before
- selecting Program | Run.
-
-
- Using dBASE 5.0 with NOVELL NetWare 3.11
- -----------------------------------------
- Running dBASE 5.0 on a NOVELL 3.11 server may cause "Record in
- use by another" when dBASE 5.0 attempts to place 500 or more
- record locks on the server. The server default for MAXLOCKS is
- 500 and may return a message of "record lock threshold exceeded"
- when this maximum is reached. If additional locks are requested
- and network resources run low, the network may lock up. This
- problem does not occur on a NOVEL 3.12 server.
-
-
- 3. DOCUMENTATION UPDATE
- -----------------------
- Following are changes in the "Language Reference:"
-
- - p. 311 Note: SAVE TO doesn't save CUA objects
-
- - p. 463 ColorEntryScrollBar property removed.
-
- - p. 469 ColorListSelected property is a reserved word.
-
- - p. 583 Save() method added. SaveFile property revised:
-
- ------------------------------//---------------------------------
- Save()
-
- A method that saves an editor object file to disk.
- Syntax
- <object reference>.Save()
-
- Property of Object
- EDITOR
-
- Usage
- If the DataSource and SaveFile values are blank, then Save()
- displays the "Save As" dialog box to prompt the user for a new
- file name. If the user selects a new file, the DataSource is
- changed to the new file name and the file is written to disk.
- If the file already exists, the user is prompted to Overwrite
- regardless of SET SAFETY. If Overwrite is selected, the
- DataSource is changed and the file written. If Cancel is selected
- from the Overwrite dialog or no file is selected from the Save As
- dialog box, then the DataSource is untouched and the file is not
- saved. The Modified flag is untouched.
-
- Example
- In the following example, the untitled editor in the form is
- saved to a file named NOTES.TXT when the editor contents are
- changed and the user clicks the Save pushbutton.
-
- DEFINE FORM fName FROM 0,0 TO 15, 75
- DEFINE EDITOR eEdit of fName FROM 1,1 TO 6, 50
- DEFINE PUSHBUTTON pbSave OF fName AT 8, 20 ;
- PROPERTY ;
- Text "&Save", ;
- Width 10, ;
- OnClick SaveEdit, ;
- GrabFocus .F.
-
- ? fName.READMODAL()
- lVoid = fName.RELEASE()
- RETURN
-
- PROCEDURE SaveEdit
- IF Form.eEdit.Modified()
- Form.eEdit.SaveFile = "Notes.txt"
- lVoid = Form.eEdit.SAVE()
- ENDIF
- RETURN
-
- See also
- SaveFile
-
- ------------------------------//---------------------------------
- SaveFile
- Instructs the Save() method to save the Editor buffer with a file
- name different from the DataSource.
-
- Syntax
- <object reference>.SaveFile <expL | expC>
-
- Default
- The default for SaveFile is "".
-
- Property of Object
- EDITOR
-
- Usage
- If the Datasource file name is different from the SaveFile file
- name, the Save() method saves the editor buffer with the SaveFile
- name, resets the DataSource to the SaveFile name, and then sets
- the value of SaveFile to "".
- If the Datasource is set and SaveFile is "", the Save() method
- saves using the DataSource value and leaves SaveFile as "".
- If DataSource is not set (an Untitled editor) and SaveFile is set
- to a file name, the Save() method saves the Untitled editor to
- the SaveFile name value. Datasource is set to the SaveFile value
- and then SaveFile is set to "" .
- Attempting to set SaveFile for a MEMO datasource causes a
- "Property not supported in this context" error message.
- You can use the SaveFile property in the DEFINE statement. Use
- dot reference notation to do the following:
- - Set the value of the property.
- - Query the property's value.
- - Assign the property's return value to a variable.
-
- See also
- Close(), DEFINE EDITOR, Release(), Save()
-
-