VAPIMWP_VIEW_CANPREVIEWPANE
Determines whether a file can be viewed in a preview pane. The message indicates TRUE only when container formats such as ZIP, TAR, or PST files are viewed.
To determine whether the preview pane is being used, use the VAPIMWP_VIEW_GETPREVIEWPANE message.
To specify if the preview pane should be used, use the VAPIMWP_VIEW_SETPREVIEWPANE message.
This is a parameter of the VAPIM_VIEW message.
Syntax
#include <kvvapi.h> SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_CANPREVIEWPANE, (LPARAM) (BOOL*) lpbCanPreviewPane );
Arguments
| Argument | Description |
|---|---|
hWndVAPI
|
The handle of the VAPI window. |
lpbCanPreviewPane
|
A pointer to a flag that returns Only container files use the preview pane. |
Returns
SendMessage()returnsTRUEif the call succeeds, in which caselpbCanPreviewPanereturnsTRUEorFALSE.SendMessage()returnsFALSEif the call fails (for example, if there are invalid arguments or if no document is open), in which caselpbCanPreviewPaneis undefined.