🚀 go-pugleaf

Hi.

I'd like to ask what to do to make a maximized MDI child window back to it's
previous position (size), before it was maximized?

I have a main window procedure that part of looks like this:
    ....
case WM_COMMAND:
HWND mdiActive = (HWND) SendMessage(mdi , WM_MDIGETACTIVE , 0 , 0);
    switch (LOWORD(wParam)){
    ...
    /* MDI BOX STUFF */
    case IDM_TS_MDI_TILE:
     SendMessage(mdi, WM_MDITILE , (WPARAM) (MDITILE_HORIZONTAL |
MDITILE_SKIPDISABLED) , 0);
     break;
    case IDM_TS_MDI_MAX:
     SendMessage(mdi, WM_MDIMAXIMIZE , (WPARAM) mdiActive , 0);
     break;
    case IDM_TS_MDI_RESTORE:
     SendMessage(mdi, WM_MDIRESTORE , (WPARAM) mdiActive , 0);
     break;
    case IDM_TS_MDI_CASCADE:
     SendMessage(mdi, WM_MDICASCADE, 0, 0);
     break;
...
IDM_TS_MDI_TILE, IDM_TS_MDI_MAX, IDM_TS_MDI_RESTORE, IDM_TS_MDI_CASCADE are
my custom message triggers defined elswere in the code.

Now when I press any of MDI child box system buttons
(minimize/maximize/close) or select from application menu option that
triggers any of above IDM... messages the MDI CHILD window reacts correctly,
it minimizes/closes itself.

After I maximize w child window, so it's icon moves into the main window
menu and system buttons (minimize/restore/close) show up under main window
system buttons, I can't force that active child window to minimize/restore
to it's previous position using system buttons (my custom IDM... triggers
(from application menu) all work fine; they make the child window to
minimize/restore).

I was trying to put WM_SYSCOMMAND into MDI child box procedure, but catching
SC_RESTORE doesn't seem to work for me. The piece of code from MDI child
proc. looks like this:

  .....
  case WM_SYSCOMMAND:
   switch(wParam){
    case SC_RESTORE:
     MessageBox(NULL, "OK","Catching SC_RESTORE EVENT", MB_OK);
    /*
    placed MsgBox here to check if application reacts on mouse clicks on the
system restore button but
    without effect; message box doesn't show up.
    */
     break;
   }
   return DefMDIChildProc(hwnd, msg, wParam, lParam);
    /* DefMDI... is called after application handles WM_SYSCOMMAND. */

Any idea what message should I catch/pass from main window proc./mdi proc.
to make the child window to minimize?
All help is welcome and appreciated.

Kind regards.
PawelT