Как закрасить Rectangle

#include <windows.h>    
#pragma hdrstop
#define SizeWindow 400  
//описание переменных
MSG msg;            
HDC hdc;            
HBRUSH hBrush;      
HWND Wnd;       
WNDCLASS wnds;      
char ClassName[255]="Rectangle";

hBrush=CreateSolidBrush(random(1000000));
Rectangle(hdc,random(SizeWindow),
random(SizeWindow/2),
random(SizeWindow),random(SizeWindow),hBrush);

hBrush=CreateSolidBrush(random(1000000));
HGDIOBJ oldBrush = SelectObject(hdc, hBrush);
//рисуем прямоугольник, не передавая браш в Rectangle функцию.
SelectObject(oldBrush);

hBrush=CreateSolidBrush(random(1000000));
HGDIOBJ oldBrush = SelectObject(hdc, hBrush);
Rectangle(hdc,random(SizeWindow),
random(SizeWindow/2),
random(SizeWindow),random(SizeWindow));
SelectObject(oldBrush);

#1 Cannot convert 'void *' to 'HDC__ *'
#2 Type mismatch in parameter 'hdc' (wanted 'HDC__ *', got 'void *')
#3 Too few parameters in call to '__stdcall SelectObject(HDC__ *,void *)'

case WM_TIMER:
{
hBrush=CreateSolidBrush(random(1000000));
HGDIOBJ oldBrush = SelectObject(hdc, hBrush);
Rectangle(hdc,random(SizeWindow),
random(SizeWindow/2),
random(SizeWindow),random(SizeWindow));
SelectObject(hdc, oldBrush);
}
break;