LVectorWindow::ScrollBy

Summary

Scrolls the displayed vector by the specified amount.

Syntax

POINT LVectorWindow::ScrollBy(dx, dy)

Parameters

L_INT dx

The distance to scroll the vector horizontally.

L_INT dy

The distance to scroll the vector vertically.

Returns

A point structure that holds the actual horizontal and vertical distances by which the vector was scrolled.

Comments

The units for dx and dy are in pixels, with the top, left pixel of the image being 0,0. This function can be used with or without scrollbars.

Required DLLs and Libraries

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

See Also

Functions

• LVectorWindow::ScrollTo
• Class Members

Example

Assumes pVectorWindow points to a valid LVectorWindow object.

L_INT LVectorWindow__ScrollByExample(HWND hWndParent, LVectorWindow *pVectorWindow) 
{ 
   UNREFERENCED_PARAMETER(hWndParent); 
 
   //Scroll horizontally three pixels  
   pVectorWindow->ScrollBy(3, 0); 
 
   return SUCCESS; 
}