stretchblt.c

来自「这是一个MiniGUI的开发例子库 具有各种典型控件实现的源代码」· C语言 代码 · 共 108 行

/*
** $Id: stretchblt.c,v 1.6 2004/07/01 08:39:18 weiym Exp $
**
** Listing 26.2
**
** bitblt.c: Sample program for MiniGUI Programming Guide
**     demonstration of stretch blitting operation
**
** Copyright (C) 2003 Feynman Software.
**
** License: GPL
*/

#include <minigui/common.h>
#include <minigui/minigui.h>
#include <minigui/gdi.h>
#include <minigui/window.h>
#include <minigui/control.h>

static int StretchbltWinProc(HWND hWnd, int message, WPARAM wParam, LPARAM lParam)
{
    int i;
    HDC hdc, memdc;

    switch (message) {
    case MSG_PAINT:
        hdc = BeginPaint(hWnd);
#ifdef _USE_NEWGAL
        memdc = CreateCompatibleDCEx (hdc, 300, 300);
#else
        memdc = CreateCompatibleDC (hdc);
#endif
        SetBrushColor (memdc, PIXEL_red);
        FillBox (memdc, 0, 0, 300, 300);
        SetBrushColor (memdc, PIXEL_blue);
#ifdef _USE_NEWGAL
        FillCircle (memdc, 100, 100, 100);
#else
        FillBox (memdc, 2, 2, 16, 16);
#endif
        for (i = 10; i >=1; i--)
            StretchBlt (memdc, 0, 0, 300, 300, hdc, 0, 0, 15*i, 15*i, 0);

#ifdef _USE_NEWGAL
        DeleteMemDC (memdc);
#else
        DeleteCompatibleDC (memdc);
#endif
        EndPaint (hWnd, hdc);
        return 0;

    case MSG_CLOSE:
        DestroyAllControls (hWnd);
        DestroyMainWindow (hWnd);
        PostQuitMessage (hWnd);
        return 0;
    }

    return DefaultMainWinProc(hWnd, message, wParam, lParam);
}

int MiniGUIMain (int args, const char* arg[])
{
    MSG Msg;
    HWND hMainWnd;
    MAINWINCREATE CreateInfo;

#ifdef _LITE_VERSION
    SetDesktopRect(0, 0, 1024, 768);
#endif
    
    CreateInfo.dwStyle = WS_VISIBLE | WS_BORDER | WS_CAPTION;
    CreateInfo.dwExStyle = WS_EX_NONE;
    CreateInfo.spCaption = "StretchBlt demo";
    CreateInfo.hMenu = 0;
    CreateInfo.hCursor = GetSystemCursor(0);
    CreateInfo.hIcon = 0;
    CreateInfo.MainWindowProc = StretchbltWinProc;
    CreateInfo.lx = 0;
    CreateInfo.ty = 0;
    CreateInfo.rx = 640;
    CreateInfo.by = 480;
    CreateInfo.iBkColor = COLOR_lightwhite;
    CreateInfo.dwAddData = 0;
    CreateInfo.hHosting = HWND_DESKTOP;
    
    hMainWnd = CreateMainWindow (&CreateInfo);
    
    if (hMainWnd == HWND_INVALID)
        return -1;

    ShowWindow(hMainWnd, SW_SHOWNORMAL);

    while (GetMessage(&Msg, hMainWnd)) {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }

    MainWindowThreadCleanup (hMainWnd);

    return 0;
}

#ifndef _LITE_VERSION
#include <minigui/dti.c>
#endif