hBitmap = CreateCompatibleBitmap(hdc, cxBitmap, cyBitmap);

#include <windows.h>
#include "resource.h"

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

int WINAPI WinMain(HINSTANCE hI,HINSTANCE hPrevI,PSTR szCL,int iCS){
    static TCHAR szAppName [] = TEXT("PHRASE");
    HWND         hwnd;
    MSG          msg;
    WNDCLASS     wc;

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

    if(!RegisterClass(&wc)) {
        MessageBox(NULL,TEXT("Error!"),szAppName,MB_ICONERROR);
        return 0;
    }
    hwnd = CreateWindow(
        szAppName, TEXT("static HBITMAP hBitmap;"), WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
        NULL, NULL, hI, NULL
    );
    ShowWindow(hwnd, iCS);
    UpdateWindow(hwnd);

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

LRESULT CALLBACK WndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam) {
    static HBITMAP hBitmap;
    static HDC     hdcMem;
    static int     cxBitmap, cyBitmap, cxClient, cyClient, iSize = IDM_BIG;
    static TCHAR   *szText = TEXT(" Daniel 12:4 ");
    HDC            hdc;
    HMENU          hMenu;
    int            x, y;
    PAINTSTRUCT    ps;
    SIZE           size;
    switch(msg) {
        case WM_CREATE:
            hdc = GetDC(hwnd);
            hdcMem  = CreateCompatibleDC(hdc);
            GetTextExtentPoint32(hdc, szText, lstrlen(szText), &size);
            cxBitmap = size.cx;
            cyBitmap = size.cy;
            hBitmap = CreateCompatibleBitmap(hdc, cxBitmap, cyBitmap);
            ReleaseDC (hwnd, hdc);
            SelectObject(hdcMem, hBitmap);
            SetTextColor(hdcMem, RGB(0, 0, 225));
            TextOut(hdcMem, 0, 0, szText, lstrlen(szText));
            return 0;
        case WM_SIZE:
            cxClient = LOWORD(lParam);
            cyClient = HIWORD(lParam);
            return 0;
        case WM_COMMAND:
            hMenu = GetMenu(hwnd);
            switch (LOWORD(wParam)) {
                case IDM_BIG:
                case IDM_SMALL:
                    CheckMenuItem(hMenu, iSize, MF_UNCHECKED);
                    iSize = LOWORD(wParam);
                    CheckMenuItem(hMenu, iSize, MF_CHECKED);
                    InvalidateRect(hwnd, NULL, TRUE);
                    break;
            }
            return 0 ;
        case WM_PAINT:
            hdc = BeginPaint(hwnd, &ps);
            switch(iSize) {
                case IDM_BIG:
                    StretchBlt(hdc,0,0,cxClient,cyClient,hdcMem,0,0,cxBitmap,cyBitmap,SRCCOPY);
                    break;
                case IDM_SMALL:
                    for(y = 0; y<cyClient; y += cyBitmap) {
                        for(x = 0; x<cxClient; x += cxBitmap) {
                            BitBlt(hdc, x, y, cxBitmap, cyBitmap, hdcMem, 0, 0, SRCCOPY);
                        }
                    }
                    break;
            }

            EndPaint(hwnd, &ps);
            return 0;
        case WM_DESTROY:
            DeleteDC (hdcMem);
            DeleteObject(hBitmap);
            PostQuitMessage(0);
            return 0;
    }
    return DefWindowProc(hwnd, msg, wParam, lParam);
}


/********************Arquivo: resource.h********************/

#define IDM_BIG                         40001
#define IDM_SMALL                       40002


/********************Arquivo: resource.rc********************/

#include "resource.h"
#include "afxres.h"

PHRASE MENU DISCARDABLE

BEGIN
    POPUP "&Size"
    BEGIN
        MENUITEM "&Big",                        IDM_BIG, CHECKED
        MENUITEM "&Small",                      IDM_SMALL
    END
END

Comentários