VAPIMWP_DRAW_GETPAGESIZE
Gets the default size of a page. This is a parameter of the VAPIM_DRAW message.
Syntax
#include <kvvapi.h> SendMessage(hWndVAPI, VAPIM_DRAW, VAPIMWP_DRAW_GETPAGESIZE, (LPARAM) (TPVAPIPageSize*) pPageSize );
Arguments
| Argument | Description |
|---|---|
hWndVAPI
|
The handle of the VAPI window. |
pPageSize
|
A pointer to a TPVAPIPageSize structure which contains information on the page size. |
Returns
SendMessage() returns:
-
VAPI_RETURN_SUCCESSif the call succeeds. -
VAPI_RETURN_NOT_INITIALIZEDif the drawing routines have not been initialized. -
VAPI_RETURN_NO_PAGEif the requested page does not exist or is being displayed before all previous pages have been displayed. -
VAPI_RETURN_NOT_AVAILABLEif the document does not support this feature (for example, ZIP files, video, audio). -
VAPI_RETURN_ERRORif an error has occurred.
Discussion
Before you send this message:
-
Initialize VAPI by sending the VAPIMWP_DRAW_INIT message.
-
Open the document by sending the VAPIMWP_INIT_OPEN_DOCUMENT message.
-
Send the VAPIMWP_DRAW_DRAWPAGE message to draw the page.