Thread: MDICLIENT Problem

Originally Posted by Ken Fitlike

The problem you are describing typically occurs when zero is returned from a WM_COMMAND handler instead of the return value from DefFrameProc .

Code:

case WM_COMMAND:
  /*your stuff*/
  return DefFrameProc(hwnd,handle_of_mdiclient,WM_COMMAND, wParam,lParam);

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Welcome to cprog.

hey thnks

i already posted this topic to winprog forum sorry my bad its my first time here

hey ken can you help me

heres the WM_COMMAND part...

im calling doCommand function whenever there is WM_COMMAND message..

PHP Code:

    void doCOMMAND( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
    {
        
        switch( LOWORD( wParam ) )
        {
            case m_exit:
                DestroyWindow( hwnd );
                break;

            case m_about:
                msgbox(hwnd,"To Do About","About");
                break;

            case m_open:
                msgbox(hwnd,"To Do Open","Open");
                break;

            case m_save:
                msgbox(hwnd,"To Do Save","Save");
                break;    
                
            
            case m_find:
                msgbox(hwnd,"To Do Find","Find");
                break;

            case m_print:
                SendMessage( GetDlgItem( hwnd,mdi_id ) , WM_MDIMAXIMIZE, 1, 1 );

                //msgbox(hwnd,"To Do Print","Print");
                break;
                
            case m_new:
                CreateNewMDIChild( GetDlgItem( hwnd,mdi_id ) );

                break;
                
            case m_saveas:
                msgbox(hwnd,"To Do Save As","Save As");
                break;
                
            case m_undo:
                msgbox(hwnd,"To Do Undo","Undo");
                break;

            case m_redo:
                msgbox(hwnd,"To Do Redo","Redo");
                break;    
                
            case m_help:
                msgbox(hwnd,"To Do Help","Help");
                break;    

            case m_findreplace:
                msgbox(hwnd,"To Do Find/Replace","Find/Replace");
                break;

            case m_status:
                msgbox(hwnd,"To Do Status Bar","Status Bar");
                break;

            case m_toolbar:
                msgbox(hwnd,"To Do Tool Bar","Tool Bar");
                break;    
                                
            case m_gotoline:
                msgbox(hwnd,"To Do Goto Line","Goto Line");
                break;    
                
            case m_workspace:
                msgbox(hwnd,"To DoWorkspace","Workspace");
                break;    

            case m_settings:
                msgbox(hwnd,"To Program Settings","Workspace");
                break;
                
            case m_execute:
                msgbox(hwnd,"To Do Execute","Execute");
                break;    

            case m_font:
                msgbox(hwnd,"To Do Font","Font");
                break;    

            case m_cascade:
                SendMessage( GetDlgItem(hwnd,mdi_id), WM_MDICASCADE, 0, 0 );
                break;

            case m_tilev:
                SendMessage( GetDlgItem(hwnd,mdi_id), WM_MDITILE, 1, 1 );

                break;

            case m_tileh:
                SendMessage( GetDlgItem(hwnd,mdi_id), WM_MDITILE, 0, 0 );

                break;

            case m_close:

                HWND childHwnd;
                childHwnd = ( HWND )SendMessage( GetDlgItem( hwnd,mdi_id ), WM_MDIGETACTIVE,0,0 );

                if( childHwnd )
                {
                    SendMessage( childHwnd, WM_CLOSE, 0, 0 );                        
                }


                break;

            default:

                if( LOWORD( wParam ) >= mdi_firstchild)
                {
                    DefFrameProc( hwnd, GetDlgItem( hwnd,mdi_id ), msg, wParam, lParam );
                }
                else 
                {
    
                    childHwnd = ( HWND )SendMessage( GetDlgItem( hwnd,mdi_id ), WM_MDIGETACTIVE,0,0 );

                    if( childHwnd )
                    {
                        SendMessage( childHwnd, WM_COMMAND, wParam, lParam );                        
                    }
                }

                break;
        }
    } 


heres the MDICHILD proc WM_COMMAND

PHP Code:

void doMDICOMMAND( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
    {
        
        richedit.hwnd=GetDlgItem(hwnd, e_mdichild);


        switch( LOWORD( wParam ) )
        {
            case e_mdichild:
            updateStatus(richedit);
            break;

            case m_paste:
            SendDlgItemMessage( hwnd,e_mdichild,WM_PASTE,0,0 );
            break;

            case m_copy:
            SendDlgItemMessage( hwnd,e_mdichild,WM_COPY,0,0 );
            break;

            case m_cut:
            SendDlgItemMessage( hwnd,e_mdichild,WM_CUT,0,0 );
            break;

            case m_selectall:
            richedit.setFocus();
            SendMessage( richedit.hwnd,EM_SETSEL,richedit.len(),0 );
            break;
        }
    } 


Originally Posted by Ken Fitlike

>>im calling doCommand function whenever there is WM_COMMAND message<<

Well, provided that's for the frame window then:

Code:

case WM_COMMAND:
  doCommand(...);
  return DefFrameProc(hwnd,handle_of_mdiclient,WM_COMMAND, wParam,lParam);

yeah thats for the frame window but still didnt work

bro can you look at the code? i hve the link above for it.. maybe to get a closer view of it... i havent program mdi before and im really hving trouble with it and cnt find the answer in msdn or anywhere...

Originally Posted by Ken Fitlike

In the file 'CodersW.cpp', in your 'MDIChildWndProc', replace the 'return 0' with

Code:

return DefMDIChildProc( hwnd, msg, wParam, lParam );

to get default system message processing.

OMG it works

this prob has coz me lots of time, thnks very much dude