The WM_PSD_YAFULLPAGERECT message notifies the hook procedure of a Page Setup dialog box that the dialog box is about to draw the return address portion of an envelope sample page.
WM_PSD_YAFULLPAGERECT hDC = (WPARAM) (HDC) wParam; // handle of the device context lprcYaFullPage = (LPARAM) (LPRECT) lParam; // dimensions of page rectangle
If the hook procedure returns TRUE, the dialog box does not draw the return address portion of an envelope sample page.
If the hook procedure returns FALSE, the dialog box draws the return address portion of an envelope sample page.
If the paper type is not an envelope, the return value has no effect.
The Page Setup dialog box includes an image of a sample page that shows how the user’s selections affect the appearance of the printed output. When you call the PageSetupDlg function, you can provide a PagePaintHook hook procedure to customize the appearance of the sample page. Whenever the dialog box is about to draw the contents of the sample page, the dialog box sends a sequence of WM_PSD* messages to the hook procedure.