• *mime_object Function
• *parent_report_page Function
• a5_arggetvalue Function
• a5_arggetvalues Function
• a5_arggetvalues_ajax Function
• a5_convert_to_concise Function
• a5_copy_property Function
• a5_copyselectedprops Function
• a5_cp2_activeobject Function
• a5_createeventsstubs Function
• a5_dataobjectpopulate Function
• a5_dictionary_prompt Function
• a5_fixlayouteventnames Function
• a5_hotspot_define Function
• a5_list_objects_w_events Function
• a5_list_properties Function
• a5_ole_explorer Function
• a5_ole_progid_get Function
• a5_paste_all Function
• a5_pasteselectedprops Function
• a5_promptforarguments Function
• a5_properties_dialog Function
• a5_selected_property_set Function
• a5_set_property_multi Function
• a5_strip_object_name Function
• a5_substyle_select Function
• a5enum Function
• a5w_cell Function
• a5w_createupdateobject Function
• a5w_field Function
• a5webform_gen_x Function
• card_spawn_object Function
• CURRENT_OBJECT Function
• form_objects_get Function
• is_dict_required Function
• IS_OBJECT Function
• library_binary_get Function
• library_object_exists Function
• library_text_get Function
• mrec_eof Function
• OBJ Function
• OBJECT_NAME_EXPAND Function
• OBJECT_NAME_EXPAND_EXT Function
• OBJECT_NAME_NORMALIZE Function
• ole_external_methods Function

 

IS_OBJECT Function

Syntax

Arguments

object

The "name" of the object, as in " :customer:button1 ".

object_pointer

A pointer to the object.

Description

IS_OBJECT() returns .T. if Object_Pointer or Object_Address references a valid object. If you use IS_OBJECT() on a pointer variable without a value, the function will return FALSE (.F.).

Example

This Interactive Window session illustrates how IS_OBJECT() works with pointers.

dim ptr as P
? is_object(ptr)
= .F.
ptr = form.load("Inventory")
? is_object(ptr)
= .T.

The following command tests to see if a form called "customer" has a button called "Button1".

flag = is_object(":customer:button1")
'This does the same thing
p = obj(":customer:button1")
flag = IS_object(p)

This script opens a form named myform, but only if it is not already open.

if is_object("myform") then 
myform.show() 
myform.activate() 
else 
form.view("myform") 
end if

See Also

• Object Functions and Methods