用FrameRect(hdc,&rect,hBrush)，区域边框不显示？？



想创建16个区域，并把每个区域的边框画出来。。结果边框并未显示。。。高手指点。在线等。。



#include <windows.h>
#include <wingdi.h>


LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("HelloWin") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;

wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;

if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}

hwnd = CreateWindow (szAppName, // window class name
TEXT ("The Hello Program"), // window caption
WS_OVERLAPPEDWINDOW, // window style
CW_USEDEFAULT, // initial x position
CW_USEDEFAULT, // initial y position
CW_USEDEFAULT, // initial x size
CW_USEDEFAULT, // initial y size
NULL, // parent window handle
NULL, // window menu handle
hInstance, // program instance handle
NULL) ; // creation parameters

ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;

while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc ;
PAINTSTRUCT ps ;
static int i,j;
HRGN originhRgn,hRgn[4][4];

HBRUSH hBrush;
RECT rect;






switch (message)
{
case WM_CREATE:
hBrush=CreateSolidBrush(RGB(255,0,0));





InvalidateRect(hwnd,NULL,TRUE);


return 0 ;

case WM_PAINT:


hdc=BeginPaint(hwnd,&ps);


if(i=0,i<3,i++)

if(j=0,j<3,j++)

{

hRgn[i][j]=CreateRectRgn(j*500/4,i*500/4,(j+1)*500/4,(i+1)*500/4);


rect.left=j*500/4;
rect.right=(j+1)*500/4;
rect.top=i*500/4;
rect.bottom=(i+1)*500/4;
FrameRect(hdc,&rect,hBrush);


}

EndPaint(hwnd,&ps);

return 0 ;

case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}

[解决办法]
DrawEdge
[解决办法]
边框的宽度设置了吗？而且在你的WM_PAINT里没有画边框的操作啊DrawEdge