static void OnWindowCloseAll(void)
{
/* give user an opportunity for each child to save modified data or cancel
the closeall */
if ( ChildQueryCloseAll() )
{
/* ShowWindow is suggested in one of MS's examples to reduce flashing */
ShowWindow(hwndMDIClient, SW_HIDE);
EnumChildWindows(hwndMDIClient, (BOOL (CALLBACK*)(HWND, LPARAM))EnumChildProcClose, 0);
ShowWindow(hwndMDIClient, SW_SHOW);
}
}
LRESULT CALLBACK FrameWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
CLIENTCREATESTRUCT ccs;
HWND hwndChild = 0;
if ( IsWindow(hwndMDIClient) )
hwndChild = ChildGetActive();
switch ( uMsg )
{
case WM_CREATE:
/* following is regular MDI incantation */
ccs.hWindowMenu = GetSubMenu(GetMenu(hWnd), WINDOW_MENU_POS);
ccs.idFirstChild = IDM_WINDOW_CHILDREN;
hwndMDIClient = CreateWindow(
"mdiclient",
NULL,
WS_CHILD | WS_CLIPCHILDREN,
0,
0,
0,
0,
hWnd,
0,
hinstThis,
&ccs);
if ( hwndMDIClient != 0 )
{
ShowWindow(hwndMDIClient, SW_SHOW);
/* subclass the hwndMDIClient window so we can change the cursor
to a wait cursor when desired */
pfnOldMDIClientWndProc =
(WNDPROC)SetWindowLong(hwndMDIClient, GWL_WNDPROC, (LONG)MDIClientWndProc);
}
return ( 0 );
case WM_INITMENUPOPUP:
/* some popup menu is about to be displayed */
MenuStatus((int)LOWORD(lParam), (HMENU)wParam);
return ( 0 );
case WM_COMMAND:
/* if WM_COMMAND is not from a control (then it's from a menu item) */
if ( LOWORD(lParam) == 0 && MenuOnCommand(LOWORD(wParam)) )
return ( 0 );
break;
case WM_QUERYENDSESSION:
return ( ChildQueryCloseAll() );
case WM_CLOSE:
if ( !ChildQueryCloseAll() )
return ( 0 );
break;
case WM_DESTROY:
WinHelp(hwndFrame, APPLICATION_HELPFILENAME, HELP_QUIT, 0);
PostQuitMessage(0);
return ( 0 );
case WM_QUERYNEWPALETTE:
/* set the system palette to the active child's palette */
return ( OnQueryNewPalette(hwndChild) );
case WM_MDIACTIVATE:
/* set the system palette to the newly active child's palette */
OnQueryNewPalette((HWND)wParam);
return ( 0 );
case WM_PALETTECHANGED:
/* forwarded to children so they can each realize their background palettes */
ForwardToChildren(hWnd, uMsg, wParam, lParam);
return ( 0 );
case WM_SYSCOLORCHANGE:
Ctl3dColorChange();
break;
case WM_SYSCOMMAND:
switch ( wParam & 0xfff0 )
{
case SC_MAXIMIZE:
case SC_RESTORE:
/* since we effectively change our image origin when maximized or restored,
we have to _force_ the window repaint to include the entire window --
else win '95 (at least) optimizes away some of the regions */
DefFrameProc(hWnd, hwndMDIClient, uMsg, wParam, lParam);
if ( IsWindow(hwndChild) )
{
InvalidateRect(hwndChild, NULL, FALSE);
UpdateWindow(hwndChild);
}
return ( 0 );
default:
break;
}
break;
case WM_MOUSEMOVE:
if ( nWaitCursor != 0 )
SetCursor(hWaitCursor);
else
SetCursor(hArrowCursor);
break;
default:
break;
}
if ( !IsWindow(hwndMDIClient) )
return ( DefFrameProc(hWnd, 0, uMsg, wParam, lParam) );
return ( DefFrameProc(hWnd, hwndMDIClient, uMsg, wParam, lParam) );
}