LVectorBase::AttachToWindow

#include "ltwrappr.h"

virtual L_INT LVectorBase::AttachToWindow(hWnd, nEngine=VECTOR_ENGINE_GDI, dwFlags=VECTOR_ENGINE_DOUBLEBUFFER)

HWND hWnd;	/* window handle */
L_INT nEngine;	/* vector engine */
L_UINT32 dwFlags;	/* flags */

Attaches a vector handle to a window.

Parameter	Description
hWnd	Handle of the window to which the vector handle will be attached.
nEngine	The vector engine to associate with the specified vector handle. Possible values are:
	Value	Meaning
	VECTOR_ENGINE_GDI	Use GDI rendering. (No lights and shading).
	VECTOR_ENGINE_OPENGL	Use OpenGL rendering. (Viewing only, drawings not editable).
dwFlags	Flags that modify the vector engine. Possible values are:
	Value	Meaning
	VECTOR_ENGINE_DOUBLEBUFFER	Use double buffering for flicker-free screen updates.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function will attach a vector handle to a window handle. All subsequent changes to the vector image will be reflected on the window.

Note: When you copy one vector to another using LVectorBase::Copy, and the source vector is attached to a window, the destination vector will NOT be attached to the same window automatically.

You can draw on the surface of any window using LVectorBase::Paint, but to use double buffering, you must attach the vector handle to a window.

Required DLLs and Libraries

LVKRN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Functions:	LVectorBase::SetEngine, LVectorBase::Paint, LVectorBase::Copy
Topics:	Viewing a Vector Images
	Vector Images: Viewing a Vector Image