VAPIMWP_VIEW_SETMAGNIFY

Sets the magnification of the document. This is a parameter of the VAPIM_VIEW message.

Syntax

#include <kvvapi.h>
SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_SETMAGNIFY,
           (LPARAM) (int) nMagnify );

Arguments

Argument Description
hWndVAPI The handle of the VAPI window.
nMagnify

An integer that is the document magnification:

  • n – Custom Percentage Value
  • -1 – Page width
  • -2 – Page size
  • -3 – Fit selection to window

Returns

SendMessage() returns TRUE if the call succeeds; otherwise it returns FALSE.

Discussion

Use this message to implement a Magnify menu item or toolbar button.

The range of acceptable values is 10 to 400 percent.