FIX: ActiveX Control Shows Through Page After Modal Form Runs
ID: Q189710
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The information in this article applies to:
-
Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a
SYMPTOMS
After you display a modal form from a calling form that has an
OleContainer/ActiveX control in an inactive Pageframe page, the ActiveX
control bleeds through and displays on the active page.
RESOLUTION
After you display and then close the modal form, set the Visible property
of the OleContainer control holding the ActiveX control to .F., then back
to .T.
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed
at the beginning of this article. This has been corrected in Visual FoxPro
6.0.
MORE INFORMATION
Steps to Reproduce Behavior
- Run the following code from a program (.prg) file:
PUBLIC OFORM1
OFORM1=CREATEOBJECT("form1")
OFORM1.SHOW()
DEFINE CLASS FORM1 AS FORM
AUTOCENTER = .T.
NAME = "Form1"
HEIGHT = 300
ADD OBJECT PF1 AS PAGEFRAME WITH ;
PAGECOUNT = 2
ADD OBJECT CMD1 AS COMMANDBUTTON WITH ;
TOP = 275, ;
NAME = 'cmd1', ;
CAPTION = 'Do form 2', ;
LEFT = 140
PROC INIT
THIS.PF1.PAGE2.ADDOBJECT('olecls1','olecls')
THIS.PF1.PAGE2.OLECLS1.VISIBLE = .T.
ENDPROC
PROC CMD1.CLICK
OY = CREATEOBJECT('form')
OY.CAPTION = "Click on the X to close me!"
OY.SHOW(1)
ENDPROC
ENDDEFINE
DEFINE CLASS OLECLS AS OLECONTROL
HEIGHT = 100
WIDTH = 100
NAME = "olecls"
OLECLASS = 'RICHTEXT.RichtextCtrl'
ENDDEFINE
- Note that the ActiveX control is not visible.
- Click Page2 to display the ActiveX control, and then click Page1.
- Next, click the "Do Form 2" button.
- Close the second form by clicking the Close button in the upper right
corner of the screen.
RESULTS:
- The ActiveX control now displays on Page1.
- You can hide the control by clicking Page2, then clicking back to Page1.
To demonstrate the solution described in the RESOLUTION section using the
preceding example, place the following code in the CMD1.CLICK procedure,
immediately after the line OY.SHOW(1):
THISFORM.PF1.PAGE2.OLECLS1.VISIBLE = .F.
THISFORM.PF1.PAGE2.OLECLS1.VISIBLE = .T.
Toggling the ActiveX control's visible property prevents the control from
incorrectly displaying on Page1.
Additional query words:
kbVFp500 kbVFp500a kbVFp600fix kbActiveX kbvfp600
Keywords :
Version : WINDOWS:5.0,5.0a
Platform : WINDOWS
Issue type : kbbug