This property is a Windows operating environment device context handle. The Windows operating environment manages the system display by assigning a device context for the Printer object and for each form and PictureBox control in your application. You can use the hDC property to refer to the handle for an object's device context. This provides a value to pass to Windows API calls.
device context:
A link between a Windows-based application, a device driver, and an output device such as a display, printer, or plotter.
This property is assigned by Windows to ur form and u can this property to use with API drawing Functions
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Visual Basic 6.0 Enterprise SP5
Embedded Visual Basic 3.0
SQL Server 2000
Windows 2000 Proff
Delphi 6.0
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