SftPrintPreview/DLL 2.0 - Print Preview Control for C/C++

NM_SFTPRINTPREVIEW_HELP Structure

The NM_SFTPRINTPREVIEW_HELP structure describes the NM_SFTPRINTPREVIEW_HELP_CODE notification.

typedef struct {
     NMHDR hdr;
     int helpType;
#define NM_SFTPRINTPREVIEW_HELP_TOOLBAR 1
#define NM_SFTPRINTPREVIEW_HELP_PAGESETUP 2
} NM_SFTPRINTPREVIEW_HELP;

Members

hdr

Standard NMHDR structure that contains information about this notification.

helpType

Defines how the user requested online help.

Comments

The NM_SFTPRINTPREVIEW_HELP structure describes the NM_SFTPRINTPREVIEW_HELP_CODE notification.

The NM_SFTPRINTPREVIEW_HELP_CODE notification code is sent when the user requests online help.

General information about the control sending this notification is contained in the hdr structure (see NMHDR).

Example

C

LRESULT CALLBACK MainWindowProc(HWND hwndMain, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg) {
        case WM_NOTIFY: {
            int id = (int) wParam;
            LPNMHDR pnmh = (LPNMHDR) lParam;
            switch (id) {
                case IDC_PREVIEW:
                    switch (pnmh->code) {
                        case NM_SFTPRINTPREVIEW_HELP_CODE: { // help requested
                            NM_SFTPRINTPREVIEW_HELP* pNtfy = (NM_SFTPRINTPREVIEW_HELP*) lParam;
                            MessageBox(hwndMain, TEXT("Sorry, this sample application doesn't include online help."),
                            TEXT("SftPrintPreview/DLL"), MB_OK);
                            break;
                        }
                    }
                    break;
            }
            break;
        }
    }
    return DefWindowProc(hwndMain, uMsg, wParam, lParam);
}

C++

BEGIN_MESSAGE_MAP(CPreviewPagePrinting, CSftPrintPreview_View)
    ON_NM_SFTPRINTPREVIEW_HELP_CODE_REFLECT(OnNotifyHelpReflect)
END_MESSAGE_MAP()

afx_msg void CPreviewPagePrinting::OnNotifyHelpReflect(NMHDR * pNotifyStruct, LRESULT* lResult)
{
    MessageBox(_T("Sorry, this sample application doesn't include online help."),
    _T("SftPrintPreview/DLL"), MB_OK);
    *lResult = 0;
}

See Also C/C++ API | C++ Classes | Notifications