У меня графический режим 640*480*256 на FreePasclal'e и не хочет работать мышка, не инициализируется. Скажите пожалуйста, в чем может быть дело?

Модуль Mouse не предназначен для графических режимов.

It is intended to be used only in text-based screens, for instance in conjunction
with the keyboard and video unit. No support for graphical screens is implemented, and there
are (currently) no plans to implement this.

Подключай модуль WinMouse.

 {$apptype GUI}
 
uses
  WinCrt,
  Windows,
  WinMouse,
  Graph;
 
procedure InitGr;
var
   GraphDriver, GraphMode: SMALLINT;
 
begin
     ShowWindow (GetActiveWindow,0);
     GraphDriver := d8bit;
     GraphMode := m800x600;
 
     InitGraph(GraphDriver,GraphMode,'..\bgi');
end;
 
Var
   X , Y , State : Longint;
   flag: boolean;
 
begin
     InitGr;
 
     Line (0, 0, GetMaxX, GetMaxY);
 
     If MouseFound Then
     begin
          InitMouse;
          ShowMouse;
 
          Randomize;
          flag := false;
          repeat
            GetMouseState ( x , y , State );
 
            If ( State and LButton ) = LButton Then
               circle (x, y, 20);
 
            If ( State and RButton ) = RButton Then
               flag := true;
 
          until flag;
 
          HideMouse;
     end;
 
     repeat
     until keypressed;
 
     CloseGraph;
end.