INT_PTR CALLBACK CBasePropertyPage::DialogProc(HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
CBasePropertyPage *pPropertyPage;
switch (uMsg) {
case WM_INITDIALOG:
_SetWindowLongPtr(hwnd, DWLP_USER, lParam);
// This pointer may be NULL when calculating size
pPropertyPage = (CBasePropertyPage *) lParam;
if (pPropertyPage == NULL) {
return (LRESULT) 1;
}
pPropertyPage->m_Dlg = hwnd;
}
// This pointer may be NULL when calculating size
pPropertyPage = _GetWindowLongPtr<CBasePropertyPage*>(hwnd, DWLP_USER);
if (pPropertyPage == NULL) {
return (LRESULT) 1;
}
return pPropertyPage->OnReceiveMessage(hwnd,uMsg,wParam,lParam);
}
LRESULT CALLBACK BaseWindow::WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
BaseWindow *pWin = NULL;
if (uMsg == WM_NCCREATE)
{
// When we create the window, we pass in a pointer to this class
// as part of the CREATESTRUCT structure.
LPCREATESTRUCT lpcs = (LPCREATESTRUCT)lParam;
pWin = (BaseWindow*)lpcs->lpCreateParams;
// Set the window handle.
pWin->m_hwnd = hwnd;
// Set the pointer to the class as user data.
_SetWindowLongPtr(hwnd, GWLP_USERDATA, pWin);
}
else
{
// Get the pointer to the class.
pWin = _GetWindowLongPtr<BaseWindow*>(hwnd, GWLP_USERDATA);
}
if (pWin)
{
return pWin->OnReceiveMessage(uMsg, wParam, lParam);
}
else
{
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
}
//-----------------------------------------------------------------------------
// Name: DialogProc()
// Desc: DialogProc for the dialog. This is a static class method.
//
// lParam: Pointer to the CBaseDialog object.
//
// The CBaseDialog class specifies lParam when it calls DialogBoxParam. We store the
// pointer as user data in the window.
//
// (Note: The DirectShow CBasePropertyPage class uses the same technique.)
//-----------------------------------------------------------------------------
INT_PTR CALLBACK CBaseDialog::DialogProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
{
CBaseDialog *pDlg = 0; // Pointer to the dialog class that manages the dialog
if (msg == WM_INITDIALOG)
{
// Get the pointer to the dialog object and store it in
// the window's user data
_SetWindowLongPtr(hDlg, DWLP_USER, lParam);
pDlg = (CBaseDialog*)lParam;
if (pDlg)
{
pDlg->m_hDlg = hDlg;
pDlg->CalcNcSize();
HRESULT hr = pDlg->OnInitDialog();
if (FAILED(hr))
{
pDlg->EndDialog(0);
}
}
return FALSE;
}
// Get the dialog object from the window's user data
pDlg = _GetWindowLongPtr<CBaseDialog*>(hDlg, DWLP_USER);
if (pDlg != NULL)
{
switch (msg)
{
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
if (pDlg->OnOK())
{
pDlg->EndDialog(IDOK);
}
return TRUE;
case IDCANCEL:
if (pDlg->OnCancel())
{
pDlg->EndDialog(IDCANCEL);
}
return TRUE;
default:
return pDlg->OnCommand((HWND)lParam, LOWORD(wParam), HIWORD(wParam));
}
break;
case WM_NOTIFY:
return pDlg->OnNotify((NMHDR*)lParam);
default:
return pDlg->OnReceiveMsg(msg, wParam, lParam);
}
}
else
{
return FALSE;
}
}
