GetMenuItemProperty
Obtains a piece of data that has been previously associated with a menu item.
pascal OSStatus GetMenuItemProperty (
MenuHandle menu,
UInt16 item,
OSType propertyCreator,
OSType propertyTag,
UInt32 bufferSize,
UInt32 *actualSize,
void *propertyBuffer);
-
menu
-
A value of type
MenuHandle
. Pass a handle to the menu containing the item to be examined for associated data.
-
item
-
An unsigned 16-bit integer. Pass a value specifying the item number of the menu item or 0 if the data is associated with the menu as a whole.
-
propertyCreator
-
A four-character code. Pass your program's signature, as registered through Apple Developer Technical Support. If your program is of a type that would not normally have a signature (for example, a plug-in), you should still register and use a signature in this case, even though your program's file may not have the same creator code as the signature that you register. The
'macs'
property signature is reserved for the system and should not be used.
-
propertyTag
-
A four-character code. Pass the application-defined code identifying the data.
-
bufferSize
-
An unsigned 32-bit integer. Pass a value specifying the size of the data to be obtained. If the size of the data is unknown, use the function
GetMenuItemPropertySize
to get the data's size. If the size specified in the
bufferSize
parameter does not match the actual size of the property,
GetMenuItemProperty
only retrieves data up to the size specified or up to the actual size of the property, whichever is smaller, and an error is returned.
-
actualSize
-
A pointer to an unsigned 32-bit integer. On return, this value is set to the actual size of the associated data. You may pass
nil
for the
actualSize
parameter if you are not interested in this information.
-
propertyBuffer
-
A pointer to a buffer. On return, this buffer contains a copy of the data that is associated with the specified menu item.
-
function result
-
A result code. See
Result Codes for the Mac OS 8.5 Menu Manager
.
DISCUSSION
You may use the function
GetMenuItemProperty
to obtain a copy of data previously set with the function
SetMenuItemProperty
.
VERSION NOTES
Available with Mac OS 8.5 and later.
© 1999 Apple Computer, Inc. — (Last Updated 19 Jan 99) Previous | Back Up One Level | Next |