VAPIMWP_PRINT_CANPRINT

Determines whether the document can be printed. This is a parameter of the VAPIM_PRINT message.

Syntax

#include <kvvapi.h>
SendMessage(hWndVAPI, VAPIM_PRINT, VAPIMWP_PRINT_CANPRINT,
           (LPARAM) (BOOL*) lpbCanPrint );

Arguments

Argument Description
hWndVAPI The handle of the VAPI window.
lpbCanPrint A pointer to a flag that returns TRUE or FALSE, depending on whether the document can be printed.

Returns

  • SendMessage() returns TRUE if the call succeeds, in which case lpbCanPrint 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 lpbCanPrint is undefined.

Discussion

Use this message to control the state of a Print menu item or toolbar button.