GDI Plus Object Foundation Class
The gpObject class is the abstract base class for all GDI+ objects. It provides management of GDI+ handles and the outcome of GDI+ operations.
Category |
Reporting |
|---|---|
Default Catalog |
Visual FoxPro Catalog\Foundation Classes\Output\GDIplus |
Class |
gpObject |
Base Class |
Custom |
Class Library |
_GDIPLUS.vcx |
Parent Class |
gpBase (GDI Plus Base Foundation Class) |
Remarks
The following table lists public properties and methods added by this class to its parent class, gpBase.
Properties and methods |
Description |
|---|---|
GetHandle Method |
Returns the underlying GDI+ handle for this object. Syntax: ? THIS.GetHandle() Return Values: Integer value representing handle. Returns null (.NULL.) if an error occurs. Parameters: None. |
GetStatus Method |
Returns the status code from the last GDI+ function called on this object. See the GP_STATUS_* defined constants. Syntax: ? THIS.GetStatus() Return Values: Integer value representing status code. Parameters: None. |
SetHandle Method |
Sets the native GDI+ handle if this has been obtained from an outside source. Syntax: ? THIS.SetHandle(tvNewHandle,tlOwnsHandle) Return Values: : Logical, representing success or failure. Parameters: tvHandle, required, the handle to assign. tlOwnsHandle, optional, defaults to false (.F.). Indicates whether this object owns the handle and can delete it when this object performs other cleanup. |
Win32LastError Property |
Returns the last Windows error code if GetStatus returns GP_STATUS_Win32Error. Default: 0. |
See Also
Concepts
Guidelines for Using Visual FoxPro Foundation Classes