DOCUMENT:Q163025 05-FEB-2000 [foxpro]
TITLE :PRB: OLE Error when Inserting OLE Object in VFP for Macintosh
PRODUCT :Microsoft FoxPro
PROD/VER:MACINTOSH:3.0b
OPER/SYS:
KEYWORDS:kbHWMAC kbvfp
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The information in this article applies to:
- Microsoft Visual FoxPro for Macintosh, version 3.0b
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SYMPTOMS
========
When inserting an OLE object into a general field, adding an insertable OLE
object in a container control on a form, or assigning an object name to the
DocumentFile property of an OLE container control in program code, the following
error message may appear:
OLE error code 0x80000008: Unspecified error.
CAUSE
=====
The object inserted into the general field, or added as an insertable object in
an OLE container on a form, or assigned to the DocumentFile property, has File
and Creator types that are not associated with an application on the Macintosh.
RESOLUTION
==========
There are several workarounds to this error:
- Open the file/graphic in an existing application on the Macintosh, then copy
and paste the text/graphic into the general field.
- Use a resource editor such as Apple's ResEdit to change the File and Creator
type to the types required by the application server.
- Use the Foxtools.cfm function FxSetType() to set the File and Creator type of
the file to types associated with an application installed on the Macintosh.
For more information on using the FxSetType() function with an Imager File,
please see the following articles in the Microsoft Knowledge Base:
Q152370 How To Use the APPEND GENERAL Command with an Imager File
Q109482 How To Change the Creator and Type Set by FCREATE()
STATUS
======
This behavior is by design.
MORE INFORMATION
================
On the Macintosh, all files are associated to an application by either the File
or Creator type. A file's Creator and Type attributes identify the parent
application of a file and its specific kind. The Type attribute is used by other
applications in order to determine whether a file is a valid document to load.
Whereas in Windows, files are generally associated to applications by their file
extension.
Steps to Reproduce Behavior
---------------------------
This error message can be produced in the following three methods.
Method 1:
Attempt to assign a file to the DocumentFile property in code when creating an
OLE object using the CREATEOBJECT() function.
NOTE: By default, the "Picts folder" and the graphics do not exist. Visual FoxPro
ships with sample graphics files that are contained in a self- extracting
archive (SEA) file located in the "Microsoft Visual FoxPro:Samples:Graphics"
folder. To follow the steps below, double-click the Picts.sea to extract the
PICT files. Store them in the default folder specified "Picts Folder." For more
information of these SEA files, read the Graphics Readme in the above folder.
* The file and creator types used below are specific to Microsoft Imager
* Uncomment the next three lines of code to prevent OLE error
* mypict= HOME()+"Samples:Graphics:Picts Folder:Fox:Add.PICT"
* SET LIBRARY TO HOME() + "Foxtools.cfm" ADDITIVE
* =FxSetType(SYS(2027,mypict ),"PICT","MIMG")
frmMyForm = CREATEOBJECT('form') && Create a form
frmMyForm.Closable = .F. && Disable the close box
frmMyForm.AddObject('cmdCommand1','cmdMyCmdBtn') && Add Command button
frmMyForm.AddObject("oleObject","oleImager") && Add OLE object
frmMyForm.cmdCommand1.Visible=.T. && Display the "Quit" Command button
frmMyForm.oleObject.Visible=.T. && Display the OLE control
frmMyForm.oleObject.Height = 50 && OLE control height
frmMyForm.oleObject.AutoActivate = 2
frmMyForm.Show && Display the form
frmMyForm.oleObject.DoVerb(0) && 0 for Default, -1 for Edit
READ EVENTS && Start event processing
CLEAR CLASS oleImager
DEFINE CLASS oleImager as OLEControl
OleClass ="MSImager.2" && Server name
* Uncomment next line, comment 2nd DocumentFile to prevent error
* DocumentFile = mypict
DocumentFile = HOME()+"Samples:Graphics:Picts Folder:Fox:Add.PICT"
ENDDEFINE
DEFINE CLASS cmdMyCmdBtn AS CommandButton && Create Command button
Caption = '\<Quit' && Caption on the Command button
Cancel = .T. && Default Cancel Command button (Esc)
Left = 125 && Command button column
Top = 210 && Command button row
Height = 25 && Command button height
PROCEDURE Click
CLEAR EVENTS && Stop event processing, close form
ENDPROC
ENDDEFINE
Method 2:
Attempt to insert an OLE object into an OLE container on a form:
1. Create a new form.
2. From the Form Controls toolbar, select the OLE Container Control button and
click somewhere on the form.
3. In the Object Type dialog box, choose Microsoft Imager 2.0 Picture. Then
choose the 'From File' option button under the Create label.
4. Then select Add.PICT from the following folder:
MACINTOSH HD:VFP:Samples:Graphics:Picts Folder:Fox
Method 3:
Directly insert the OLE object into the general field of the table.
1. Create a table with a general field.
2. Browse the table and double-click on the general field to open the general
field window.
3. Choose the Insert Object command on the Edit menu.
4. In the Object Type dialog box, choose Microsoft Imager 2.0 Picture. Then
choose the 'From File' option button under the Create label.
5. Then select Add.PICT from the following folder:
MACINTOSH HD:VFP:Samples:Graphics:Picts Folder:Fox
The task in Method 3 can also be accomplished by using the APPEND GENERAL
command. For more information on using the APPEND GENERAL command with OLE
objects, please see the following articles in the Microsoft Knowledge Base:
Q152370 How To Use the APPEND GENERAL Command with an Imager File
Q137295 How To Convert Memo Fields into Embedded Word Documents
NOTE: If error messages are received regarding problems with OLE functionality,
please refer to the following articles in the Microsoft Knowledge Base:
Q151636 Insert Object of an Imager File Causes Error or Hangs Mac
Q141099 MXL5 Err Msg: "Cannot Start the Source Application"
(c) Microsoft Corporation 1997, All Rights Reserved.
Contributions by Dean Christopher, Microsoft Corporation
Additional query words:
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Keywords : kbHWMAC kbvfp
Technology : kbHWMAC kbOSMAC kbVFPsearch kbAudDeveloper kbVFP300bMac
Version : MACINTOSH:3.0b
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