whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1548)

Database (90)
Files (137)
Forms (107)
Graphic (116)
IDE (21)
Indy (5)
Internet / LAN (131)
IntraWeb (0)
Math (76)
Misc (127)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (268)
VCL (243)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

18 Visitors Online


 
...get notified when a Form is Minimized or Maximized?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (6):  
     


  private
    
{ Private declarations }
    
procedure WMSyscommand(var msg: TWmSysCommand); message WM_SYSCOMMAND;
    procedure WMSize( Var msg: TWMSize ); Message WM_SIZE;
  end;

var
  
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.WMSyscommand(var msg: TWmSysCommand);
begin
   case 
(msg.CmdType and $FFF0) of
     
SC_MINIMIZE: begin
                    
ShowMessage('Window about to MINIMIZE');
                  end;
     SC_RESTORE : begin
                    
ShowMessage('Window about to RESTORE');
                  end;
     SC_MAXIMIZE: begin
                    
ShowMessage('Window about to MAXIMIZE');
                  end;
   end;
   inherited;
end;

procedure TForm1.WMSize(var msg: TWMSize);
begin
  If 
msg.Sizetype = SIZE_MAXIMIZED then
    
ShowMessage('Window MAXIMIZED');
  inherited;
end;

 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners