вопрос по external и др - 2

#define HS_HORIZONTAL 0
#define HS_VERTICAL 1
#define HS_FDIAGONAL 2
#define HS_BDIAGONAL 3
#define HS_CROSS 4
#define HS_DIAGCROSS 5

external(INT, "GetDC", "GetDC", "User32.dll");
external(INT, "SelectObject", "SelectObject", "Gdi32.dll");
external(INT, "CreateHatchBrush", "CreateHatchBrush", "Gdi32.dll");
external(INT, "FillRect", "FillRect", "User32.dll");

int hdc;
int rect1[4]={0, 0, 100, 100}
int rect2[4]={110, 0, 210, 100}
int rect3[4]={0, 110, 100, 210}
int rect4[4]={110, 110, 210, 210}
int rect5[4]={0, 220, 100, 320}
int rect6[4]={110, 220, 210, 320}

int brush1=CreateHatchBrush(HS_HORIZONTAL, 255);
int brush2=CreateHatchBrush(HS_VERTICAL, 65280);
int brush3=CreateHatchBrush(HS_FDIAGONAL, 6700060);
int brush4=CreateHatchBrush(HS_BDIAGONAL, 16000000);
int brush5=CreateHatchBrush(HS_CROSS, 0);
int brush6=CreateHatchBrush(HS_DIAGCROSS, 12935046);

createdialog(0);
showdialog(0, "Диалог",100, 100, 230, 360, 1, 1);

enabletimer(0);
loop()sleep(10);

function getmessage(0, WM_CREATE)
{
hdc=GetDC(gethwnd(0));
}

CREATE_TIMER(0, 200)
{
FillRect(hdc, address(#rect1[0]), brush1);
FillRect(hdc, address(#rect2[0]), brush2);
FillRect(hdc, address(#rect3[0]), brush3);
FillRect(hdc, address(#rect4[0]), brush4);
FillRect(hdc, address(#rect5[0]), brush5);
FillRect(hdc, address(#rect6[0]), brush6);
}

#define WS_CHILD 1073741824
#define WS_VISIBLE 268435456
#define BS_AUTOCHECKBOX 3
#define BM_GETSTATE 242
#define SW_HIDE 0
#define SW_SHOW 5
external(INT, "CreateWindow", "CreateWindowExA", "User32.dll" );
external(INT, "ShowWindow", "ShowWindow", "User32.dll" );

createdialog(0);
showdialog(0, "Диалог",100, 100, 300, 300, 1, 1);

int check[6], state;

loop()sleep(10);

function getmessage(0, WM_COMMAND)
{
for(int i=0; i<3; i++)
{
if(message.lparam==check[i])
{
state=sendmessage(BM_GETSTATE, 0, 0 , formatiw(check[i]));
if(state==1 || state==9)ShowWindow(check[i+3], SW_SHOW);
else ShowWindow(check[i+3], SW_HIDE);
}
}
}

function getmessage(0, WM_CREATE)
{
check[0]=CreateWindow(0, "BUTTON", "Меню1", WS_CHILD | BS_AUTOCHECKBOX | WS_VISIBLE, 20, 10, 70, 20, gethwnd(0), 0, 0, 0);
check[1]=CreateWindow(0, "BUTTON", "Меню2", WS_CHILD | BS_AUTOCHECKBOX | WS_VISIBLE, 20, 50, 70, 20, gethwnd(0), 0, 0, 0);
check[2]=CreateWindow(0, "BUTTON", "Меню3", WS_CHILD | BS_AUTOCHECKBOX | WS_VISIBLE, 20, 90, 70, 20, gethwnd(0), 0, 0, 0);

check[3]=CreateWindow(0, "BUTTON", "Подменю1", WS_CHILD | BS_AUTOCHECKBOX, 30, 30, 90, 20, gethwnd(0), 0, 0, 0);
check[4]=CreateWindow(0, "BUTTON", "Подменю2", WS_CHILD | BS_AUTOCHECKBOX, 30, 70, 90, 20, gethwnd(0), 0, 0, 0);
check[5]=CreateWindow(0, "BUTTON", "Подменю3", WS_CHILD | BS_AUTOCHECKBOX, 30, 110, 90, 20, gethwnd(0), 0, 0, 0);
}