도형, 사각, 폴리곤, 타원 (MM_ANISOTROPIC, MM_ISOTROPIC)

#include <windows.h>

LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
HINSTANCE g_hInst;
LPSTR lpszClass="Aniso";

int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance
         ,LPSTR lpszCmdParam,int nCmdShow)
{
    HWND hWnd;
    MSG Message;
    WNDCLASS WndClass;
    g_hInst=hInstance;
    
    WndClass.cbClsExtra=0;
    WndClass.cbWndExtra=0;
    WndClass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
    WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);
    WndClass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
    WndClass.hInstance=hInstance;
    WndClass.lpfnWndProc=(WNDPROC)WndProc;
    WndClass.lpszClassName=lpszClass;
    WndClass.lpszMenuName=NULL;
    WndClass.style=CS_HREDRAW | CS_VREDRAW;
    RegisterClass(&WndClass);

    hWnd=CreateWindow(lpszClass,lpszClass,WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,
        NULL,(HMENU)NULL,hInstance,NULL);
    ShowWindow(hWnd,nCmdShow);
    
    while(GetMessage(&Message,0,0,0)) {
        TranslateMessage(&Message);
        DispatchMessage(&Message);
    }
    return Message.wParam;
}

LRESULT CALLBACK WndProc(HWND hWnd,UINT iMessage,WPARAM wParam,LPARAM lParam)
{
    HDC hdc;
    PAINTSTRUCT ps;
    POINT ar[]={25,10,125,10,140,30,10,30,25,10};
    HBRUSH BrR, BrB, BrY, OldBr;
    RECT rect;

    switch(iMessage) {
    case WM_PAINT:
        hdc=BeginPaint(hWnd, &ps);
        BrR=CreateSolidBrush(RGB(255,0,0));        // red
        BrB=CreateSolidBrush(RGB(0,0,255));        // blue
        BrY=CreateSolidBrush(RGB(255,255,0));    // yellow

        SetMapMode(hdc,MM_ANISOTROPIC);            // 그림의 크기는 윈도우의 크기에 비해 항상 일정하게 설정
        SetWindowExtEx(hdc,160,100,NULL);
        GetClientRect(hWnd, &rect);
        SetViewportExtEx(hdc,rect.right,rect.bottom,NULL);

        OldBr=(HBRUSH)SelectObject(hdc,BrR);    // select brush
        Rectangle(hdc,20,30,130,90);            // draw rectangle
        SelectObject(hdc,BrB);
        Polygon(hdc,ar,5);

        SelectObject(hdc,BrY);
        Rectangle(hdc,30,40,60,70);
        Rectangle(hdc,90,40,120,70);
        Ellipse(hdc,135,5,155,25);

        SelectObject(hdc,OldBr);
        DeleteObject(BrR);
        DeleteObject(BrB);
        DeleteObject(BrY);
        EndPaint(hWnd, &ps);
        return 0;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }
    return(DefWindowProc(hWnd,iMessage,wParam,lParam));
}