//
/// Intercepts the WM_MDICREATE message sent when MDI child windows are created,
/// and, if the client's style includes MDIS_ALLCHILDSTYLES, and the child window's
/// specified style is 0, then changes the child window style attributes to
/// WS_VISIBLE, WS_CHILD, WS_CLIPSIBLINGS, WS_CLIPCHILDREN, WS_SYSMENU, WS_CAPTION,
/// WS_THICKFRAME, WS_MINIMIZEBOX, and WS_MAXIMIZEBOX.
//
TResult
TMDIClient::EvMDICreate(MDICREATESTRUCT & createStruct)
{
// Fill in default child window styles if they request style 0 since this
// client by default has set allchildstyles
//
if ((Attr.Style&MDIS_ALLCHILDSTYLES) && !createStruct.style)
createStruct.style =
WS_VISIBLE | WS_CHILD | WS_CLIPSIBLINGS | WS_CLIPCHILDREN |
WS_SYSMENU | WS_CAPTION | WS_THICKFRAME |
WS_MINIMIZEBOX | WS_MAXIMIZEBOX;
// Work around a Windows MDI bug w/ bad menus if MDI child is created
// maximized, by hiding child now & maximizing later
//
uint32 origStyle = createStruct.style;
if (createStruct.style & WS_MAXIMIZE)
createStruct.style &= ~(WS_MAXIMIZE | WS_VISIBLE);
TResult result = DefaultProcessing();
// Finish up maximized MDI child workaround
//
if (THandle(result) && (origStyle & WS_MAXIMIZE)) {
HandleMessage(WM_MDIMAXIMIZE, TParam1(result));
HandleMessage(WM_MDIREFRESHMENU);
}
return result;
}
//
/// Responds to an incoming BN_CLICKED message
//
/// Responds to notification message BN_CLICKED, indicating that the user clicked
/// the check box. If Group isn't 0, BNClicked() calls the group box's
/// SelectionChanged() member function to notify the group box that the state has
/// changed.
//
void
TCheckBox::BNClicked()
{
if (Group)
Group->SelectionChanged(Attr.Id);
DefaultProcessing(); // give parent an opportunity to handle...
}
//
/// Intercepts the WM_MDIDESTROY message.
///
/// Destroy an MDI child window. Must temporarily unhide any hidden children,
/// and then rehide them after the destruction. Otherwise Window's MDI client
/// gets confused
//
void
TMDIClient::EvMDIDestroy(THandle THandle)
{
ForEach(sUnHide, (void*)THandle);
DefaultProcessing();
ForEach(sReHide);
HandleMessage(WM_MDIREFRESHMENU);
}
/////////////////////////////////////////////////////////////////////
// TInfoControl
// ------------
//
BOOL TInfoControl::EvSetCursor (HWND hWndCursor, UINT hitTest,
UINT /* mouseMsg */)
{
if (hWndCursor == HWindow && hitTest == HTCAPTION && HCursor)
{
::SetCursor(HCursor);
return TRUE;
}
return (BOOL)DefaultProcessing();
}
//
/// Because a button can't have both owner-drawn and push button styles, BMSetStyle
/// keeps track of the style if the button is owner-drawn and the system tries to
/// set the style to BS_DEFPUSHBUTTON. BMSetStyle sets IsCurrentDefPB to true if the
/// button style is BS_DEFPUSHBUTTON.
//
TResult
TButton::BMSetStyle(TParam1 param1, TParam2)
{
if ((Attr.Style & BS_OWNERDRAW) != BS_OWNERDRAW)
DefaultProcessing();
else if (param1 == BS_DEFPUSHBUTTON) {
IsCurrentDefPB = true;
Invalidate();
}
else if (param1 == BS_PUSHBUTTON) {
IsCurrentDefPB = false;
Invalidate();
}
else {
DefaultProcessing();
}
return 0;
}
//
/// Default processing.
/// Responds to the click of the setup button with an EV_COMMAND message.
//
void TPrintDialog::CmSetup()
{
DefaultProcessing();
}
//
/// Responds to a request to change a title bar or icon. Paints the indicated device
/// context or display screen and does any special painting required for the caption.
///
/// We only need to paint the caption. Someone else will paint the borders
//
void TTinyCaption::EvNCPaint(HRGN /*region*/)
{
DefaultProcessing(); // Default border painting
DoNCPaint(); // Then our special caption painting
}
//
/// Keeps TWindow from rerouting this message.It must be left as is for the tab
/// control, as it may originate from the control's spin.
//
void
TTabControl::EvHScroll(uint, uint, THandle)
{
DefaultProcessing();
}