[游戏模版3] Win32 画笔 画刷 图形

>_<:introduce the functions of definecreateuse pen and brush to draw all kinds of line and some graphs.

>_<!following 2 files are the same with the previous and file main.cpp has some changes.

//{{NO_DEPENDENCIES}}
// Microsoft Visual C++ generated include file.
// Used by FE.RC
//
#define IDR_MAINFRAME                    128
#define IDD_FE_DIALOG        102
#define IDD_ABOUTBOX                    103
#define IDS_APP_TITLE                    103
#define IDM_ABOUT                        104
#define IDM_EXIT                        105
#define IDS_HELLO                        106
#define IDI_FE                107
#define IDI_SMALL                        108
#define IDC_FE                109
#define IDC_MYICON                        2
#define IDC_STATIC                        -1
// Next default values for new objects
//
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS

#define _APS_NEXT_RESOURCE_VALUE        129
#define _APS_NEXT_COMMAND_VALUE         32771
#define _APS_NEXT_CONTROL_VALUE         1000
#define _APS_NEXT_SYMED_VALUE           110
#endif
#endif

// stdafx.h : include file for standard system include files,
//  or project specific include files that are used frequently, but
//      are changed infrequently
//

#if !defined(AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_)
#define AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#define WIN32_LEAN_AND_MEAN        // Exclude rarely-used stuff from Windows headers


// Windows Header Files:
#include <windows.h>

// C RunTime Header Files
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <tchar.h>

// Local Header Files

// TODO: reference additional headers your program requires here

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_)

main.cpp

#include "stdafx.h"
#include "resourse.h"

#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst;                                // current instance
TCHAR szTitle[MAX_LOADSTRING];                                // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];                                // The title bar text
HPEN hPen[7];          //以下四行是画笔及画刷对象数组声明
HBRUSH hBru[7];
int sPen[7]={PS_SOLID,PS_DASH,PS_DOT,PS_DASHDOT,PS_DASHDOTDOT,PS_NULL,PS_INSIDEFRAME};//前3个基本型(实、长间、短间)可以组合；
int sBru[7]={HS_VERTICAL,HS_HORIZONTAL,HS_CROSS,HS_DIAGCROSS,HS_FDIAGONAL,HS_BDIAGONAL};//横、竖、格、斜格、↘、↗)
HWND  hWnd;
HDC   hdc;
// Foward declarations of functions included in this code module:
ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK    About(HWND, UINT, WPARAM, LPARAM);
void                MyPaint(HDC hdc);
//========================================================================================
int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
     // TODO: Place code here.
    MSG msg;

    MyRegisterClass(hInstance);//调用函数向系统注册窗口类别，输入参数hInstance是目前运行程序的对象代码；

    // 调用InitInstance函数，进行初始化操作；
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    // 消息循环（通过消息循环来获取信息，
    //进行必要的键盘信息转换而后将控制权交给操作系统，
    //有操作系统决定哪个程序的消息处理函数处理消息
    while (GetMessage(&msg, NULL, 0, 0)) //获取程序消息
    {
            TranslateMessage(&msg);//转换伪码及字符
            DispatchMessage(&msg);//将控制权交给系统，再有系统决定负责处理消息的程序；
    }

    return msg.wParam;
}
//=====================================================================================



//=============================================================================================
//在建立程序窗口实体之前，必须先定义一个窗口类别，其中包含所要建立窗口的信息，
//并向系统注册，这里的MyRegisterClass函数就是进行定义及注册窗口类别的函数。
//==============================================================================================
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;            //申请一个窗口类别“WNDCLASSEX”和结构”wcex“
                                //--------------------------------------------------------------
                                //定义vcex结构的各项信息，其中设定信息处理函数（lpfnWndProc）
                                //为WNDPROC，类别名称为（lpszClassName）为”fe";
                                //--------------------------------------------------------------
    wcex.cbSize = sizeof(WNDCLASSEX);

    wcex.style            = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = (WNDPROC)WndProc;
    wcex.cbClsExtra        = 0;
    wcex.cbWndExtra        = 0;
    wcex.hInstance        = hInstance;
    wcex.hIcon            = NULL;
    wcex.hCursor        = NULL;
    wcex.hCursor        = LoadCursor(NULL,IDC_ARROW);
    wcex.hbrBackground    = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName    = NULL;
    wcex.lpszClassName    = "fe";
    wcex.hIconSm        = NULL;

    return RegisterClassEx(&wcex);//调用RegisterClassEx函数注册类别，返回一个“ATOM"形态的字符串
                                  //此字符串即为类别名称”fe";
}
//============================================================================================


//============================================================================================
//按照前面所定义的窗口类别来建立并显示实际的程序窗口
//============================================================================================
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{

   int i;


   hInst = hInstance; // 把instance handle 储存在全局变量中；

   hWnd = CreateWindow("fe","绘图窗口",WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
                      //-----------------------------------------------
                      //调用CreateWindow函数来建立一个窗口对象
                      //第一个参数就是窗口建立依据的类别名称
                      //-----------------------------------------------
   if (!hWnd)
   {
      return FALSE;
   }
   //------------------------------------------------
   //设定窗口的位置及窗口的大小，然后绘制显示在设备上
   //-------------------------------------------------
   MoveWindow(hWnd,10,10,650,450,true);//位置及大小
   ShowWindow(hWnd, nCmdShow);//改定窗口显示时的状态
   UpdateWindow(hWnd);//将窗口绘制在显示设备上

   //--------------------------------------------------
   //循环建立各种画笔与画刷
   //--------------------------------------------------
   for(i=0;i<=6;i++)
   {
       hPen[i]=CreatePen(sPen[i],1,RGB(255,0,0));//sPen[]笔型；粗细；颜色
       if(i==6)hBru[i]=CreateSolidBrush(RGB(0,255,0));//i=6时调用CreateSolidBrush()函数建立单色笔
       else hBru[i]=CreateHatchBrush(sBru[i],RGB(0,255,0));//i!=6时；根据sBru[]阴影刷
   }

   hdc=GetDC(hWnd);//取得窗口DC;

   SetTimer(hWnd,1,5,NULL);
   MyPaint(hdc);//在DC窗口出现时画图



   return TRUE;
}
//============================================================================================


//============================================================================================
//自定义绘图函数(以格式画笔及画刷绘制线条与填充矩形)
//============================================================================================
void MyPaint(HDC hdc)
{
    int i,x1,x2,y;//x1、x2、y坐标变量

    for(i=0;i<=6;i++)//以7种不同画笔绘制线条
    {
        y=(i+1)*30;

        SelectObject(hdc,hPen[i]);//选用画笔
        MoveToEx(hdc,30,y,NULL);//移到线条起点//-----GDI两个画线函数
        LineTo(hdc,100,y);//画线  ||-BOOL MoveToEx(HDC hdc,int x坐标,int y坐标,LPPOINT 目前坐标);
    }                     //      ||-BOOL LineTo(HDC hdc,int x坐标,int y坐标);

    x1=120;
    x2=180;

    for(i=0;i<=6;i++)//以7种不同画刷填充矩形
    {
        SelectObject(hdc,hBru[i]);//选画刷
        Rectangle(hdc,x1,30,x2,y);//画封闭矩形||-------绘制矩形函数
        x1+=70;      //------||-BOOL Rectangle(HDC hdc,int 矩形左上点x坐标,int 矩形左上点y坐标,int x,int y右下);
        x2+=70;
    }
}
//============================================================================================


//============================================================================================
//在前面定义类别的时候把WndProc定义为消息处理函数（当某些外部消息发生时，会按消息的类型
//来决定该如何进行处理。此外该函数也是一个回叫函数（CALLBACK)（windows系统函数）每一个
//程序都会接收信息，选择性接受、处理；
//============================================================================================
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    PAINTSTRUCT ps;

    int i;

    switch (message)                   //判断消息类型
    {
        case WM_TIMER:
            MyPaint(hdc);
            break;
        case WM_PAINT:                //窗口重绘制
            hdc = BeginPaint(hWnd, &ps);
            MyPaint(hdc);//窗口重绘开始时调用MyPaint()绘图
            EndPaint(hWnd, &ps);
            break;
        case WM_DESTROY:              //处理窗口结束消息
            for(i=0;i<=6;i++)//窗口消息结束时删除GDI对象
            {
                DeleteObject(hPen[i]);
                DeleteObject(hBru[i]);
            }
            PostQuitMessage(0);
            ReleaseDC(hWnd,hdc);//释放所占DC;
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}
//============================================================================================