External_Class_Name - DfBaseWindow
Used to "wrap" a windows control inside of a DataFlex class
Type: Procedure Set
Parameters
| Parameter | Type | Description |
|---|---|---|
| sVDFClassName | String | DataFlex class name |
| sWindowsClassName | String | Windows class name |
Syntax
Procedure Set External_Class_Name String sVDFClassName String sWindowsClassName
Call Example
Set External_Class_Name sVDFClassName sWindowsClassName
Description
External_class_name is used to "wrap" a windows control inside of a DataFlex class. This is an advanced technique which requires knowledge of both the Windows API and the DataFlex method of "wrapping" classes. This used in conjunction with the external_message message.
Set External_Class_Name "DFTimer" to "static"
Set External_Class_Name 'DFTreeView' To 'SysTreeView32'