VAPIMWP_VIEW_CANASPECTRATIO

Determines whether the document supports an aspect ratio. This is a parameter of the VAPIM_VIEW message.

Syntax

#include <kvvapi.h>
SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_CANASPECTRATIO,
           (LPARAM) (BOOL*) lpbCanAspectRatio );

Arguments

Argument Description
hWndVAPI The handle of the VAPI window.
lpbCanAspectRatio A pointer to a flag that returns TRUE or FALSE, depending on whether the document supports an aspect ratio.

Returns

  • SendMessage() returns TRUE if the call succeeds, in which case lpbCanAspectRatio returns TRUE or FALSE.
  • SendMessage() returns FALSE if the call fails (for example, if there are invalid arguments or if no document is open), in which case lpbCanAspectRatio is undefined.

Discussion

Use this message to control the state of an Aspect Ratio menu item or toolbar button.