[游戏模版9] Win32 半透明

 1 //{{NO_DEPENDENCIES}}
 2 // Microsoft Visual C++ generated include file.
 3 // Used by FE.RC
 4 //
 5 #define IDR_MAINFRAME                    128
 6 #define IDD_FE_DIALOG        102
 7 #define IDD_ABOUTBOX                    103
 8 #define IDS_APP_TITLE                    103
 9 #define IDM_ABOUT                        104
10 #define IDM_EXIT                        105
11 #define IDS_HELLO                        106
12 #define IDI_FE                107
13 #define IDI_SMALL                        108
14 #define IDC_FE                109
15 #define IDC_MYICON                        2
16 #define IDC_STATIC                        -1
17 // Next default values for new objects
18 //
19 #ifdef APSTUDIO_INVOKED
20 #ifndef APSTUDIO_READONLY_SYMBOLS
21 
22 #define _APS_NEXT_RESOURCE_VALUE        129
23 #define _APS_NEXT_COMMAND_VALUE         32771
24 #define _APS_NEXT_CONTROL_VALUE         1000
25 #define _APS_NEXT_SYMED_VALUE           110
26 #endif
27 #endif

 1 // stdafx.h : include file for standard system include files,
 2 //  or project specific include files that are used frequently, but
 3 //      are changed infrequently
 4 //
 5 
 6 #if !defined(AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_)
 7 #define AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_
 8 
 9 #if _MSC_VER > 1000
10 #pragma once
11 #endif // _MSC_VER > 1000
12 
13 #define WIN32_LEAN_AND_MEAN        // Exclude rarely-used stuff from Windows headers
14 
15 
16 // Windows Header Files:
17 #include <windows.h>
18 
19 // C RunTime Header Files
20 #include <stdlib.h>
21 #include <malloc.h>
22 #include <memory.h>
23 #include <tchar.h>
24 
25 // Local Header Files
26 
27 // TODO: reference additional headers your program requires here
28 
29 //{{AFX_INSERT_LOCATION}}
30 // Microsoft Visual C++ will insert additional declarations immediately before the previous line.
31 
32 #endif // !defined(AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_)

  1 #include "stdafx.h"
  2 #include "resourse.h"
  3 
  4 #define MAX_LOADSTRING 100
  5 
  6 // Global Variables:
  7 HINSTANCE hInst;                                // current instance
  8 TCHAR szTitle[MAX_LOADSTRING];                                // The title bar text
  9 TCHAR szWindowClass[MAX_LOADSTRING];                                // The title bar text
 10 HBITMAP bg,dra;
 11 HDC mdc;
 12 
 13 const int xstart=50;
 14 const int ystart=20;
 15 // Foward declarations of functions included in this code module:
 16 ATOM                MyRegisterClass(HINSTANCE hInstance);
 17 BOOL                InitInstance(HINSTANCE, int);
 18 LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
 19 LRESULT CALLBACK    About(HWND, UINT, WPARAM, LPARAM);
 20 void                MyPaint(HDC hdc);
 21 //========================================================================================
 22 int APIENTRY WinMain(HINSTANCE hInstance,
 23                      HINSTANCE hPrevInstance,
 24                      LPSTR     lpCmdLine,
 25                      int       nCmdShow)
 26 {
 27      // TODO: Place code here.
 28     MSG msg;
 29 
 30     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；
 31 
 32     // 调用InitInstance函数，进行初始化操作；
 33     if (!InitInstance (hInstance, nCmdShow))
 34     {
 35         return FALSE;
 36     }
 37 
 38     // 消息循环（通过消息循环来获取信息，
 39     //进行必要的键盘信息转换而后将控制权交给操作系统，
 40     //有操作系统决定哪个程序的消息处理函数处理消息
 41     while (GetMessage(&msg, NULL, 0, 0)) //获取程序消息
 42     {
 43             TranslateMessage(&msg);//转换伪码及字符
 44             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；
 45     }
 46 
 47     return msg.wParam;
 48 }
 49 //=====================================================================================
 50 
 51 
 52 
 53 //=============================================================================================
 54 //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，
 55 //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。
 56 //==============================================================================================
 57 ATOM MyRegisterClass(HINSTANCE hInstance)
 58 {
 59     WNDCLASSEX wcex;            //申请一个窗口类别“WNDCLASSEX”和结构”wcex“
 60                                 //--------------------------------------------------------------
 61                                 //定义vcex结构的各项信息，其中设定信息处理函数（lpfnWndProc）
 62                                 //为WNDPROC，类别名称为（lpszClassName）为”fe";
 63                                 //--------------------------------------------------------------
 64     wcex.cbSize = sizeof(WNDCLASSEX);
 65 
 66     wcex.style            = CS_HREDRAW | CS_VREDRAW;
 67     wcex.lpfnWndProc    = (WNDPROC)WndProc;
 68     wcex.cbClsExtra        = 0;
 69     wcex.cbWndExtra        = 0;
 70     wcex.hInstance        = hInstance;
 71     wcex.hIcon            = NULL;
 72     wcex.hCursor        = NULL;
 73     wcex.hCursor        = LoadCursor(NULL,IDC_ARROW);
 74     wcex.hbrBackground    = (HBRUSH)(COLOR_WINDOW+1);
 75     wcex.lpszMenuName    = NULL;
 76     wcex.lpszClassName    = "fe";
 77     wcex.hIconSm        = NULL;
 78 
 79     return RegisterClassEx(&wcex);//调用RegisterClassEx函数注册类别，返回一个“ATOM"形态的字符串
 80                                   //此字符串即为类别名称”fe";
 81 }
 82 //============================================================================================
 83 
 84 
 85 //============================================================================================
 86 //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
 87 //============================================================================================
 88 BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
 89 {
 90    HWND hWnd;
 91    HDC hdc;
 92    hInst = hInstance; // 把instance handle 储存在全局变量中；
 93 
 94    hWnd = CreateWindow("fe","绘图窗口",WS_OVERLAPPEDWINDOW,
 95       CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
 96                       //-----------------------------------------------
 97                       //调用CreateWindow函数来建立一个窗口对象
 98                       //第一个参数就是窗口建立依据的类别名称
 99                       //-----------------------------------------------
100    if (!hWnd)
101    {
102       return FALSE;
103    }
104    //------------------------------------------------
105    //设定窗口的位置及窗口的大小，然后绘制显示在设备上
106    //-------------------------------------------------
107    MoveWindow(hWnd,10,10,600,450,true);//位置及大小
108    ShowWindow(hWnd, nCmdShow);//改定窗口显示时的状态
109    UpdateWindow(hWnd);//将窗口绘制在显示设备上
110 
111    hdc=GetDC(hWnd);
112    mdc=CreateCompatibleDC(hdc);
113 
114    BITMAP bm1,bm2;
115    unsigned char *px1,*px2;
116 
117    bg=(HBITMAP)LoadImage(NULL,"bg.bmp",IMAGE_BITMAP,600,450,LR_LOADFROMFILE);
118    //名、类型、大小、加载方式；
119    GetObject(bg,sizeof(BITMAP),&bm1);
120 
121    if(bm1.bmBitsPixel!=32 && bm1.bmBitsPixel!=24)
122    {
123        MessageBox(NULL,"此程序只能在 32 bit 或 24 bit 显示模式中运行","警告",0);
124        return FALSE;
125    }
126 
127    px1=new unsigned char[bm1.bmHeight * bm1.bmWidthBytes];
128    GetBitmapBits(bg,bm1.bmHeight*bm1.bmWidthBytes,px1);
129 
130 
131 
132    dra=(HBITMAP)LoadImage(NULL,"dra.bmp",IMAGE_BITMAP,243,120,LR_LOADFROMFILE);
133    GetObject(dra,sizeof(BITMAP),&bm2);
134    px2=new unsigned char[bm2.bmHeight * bm2.bmWidthBytes];
135    GetBitmapBits(dra,bm2.bmHeight*bm2.bmWidthBytes,px2);
136 
137 
138 
139    int xend,yend;
140    int x,y,i;
141    int rgb_b;
142    int PxBytes=bm1.bmBitsPixel/8;
143 
144    xend=xstart+298;
145    yend=ystart+329;
146 
147    for(y=ystart;y<yend;y++)
148    {
149        for(x=xstart;x<xend;x++)
150        {
151            rgb_b=y*bm1.bmWidthBytes+x*PxBytes;
152 
153            px1[rgb_b]=px1[rgb_b]*0.7;
154            px1[rgb_b+1]=px1[rgb_b+1]*0.7;
155            px1[rgb_b+2]=px1[rgb_b+2]*0.7;
156        }
157    }
158 
159 
160    for(y=0;y<(bm2.bmHeight);y++)
161    {
162        for(x=0;x<bm2.bmWidth;x++)
163        {
164            rgb_b=y*bm2.bmWidthBytes+x*PxBytes;
165            i=(ystart+y)*bm1.bmWidthBytes+(xstart+x)*PxBytes;
166 
167            px2[rgb_b]=px2[rgb_b]*0.3+px1[i];
168            px2[rgb_b+1]=px2[rgb_b+1]*0.3+px1[i+1];
169            px2[rgb_b+2]=px2[rgb_b+2]*0.3+px1[i+2];
170        }
171    }
172 
173    SetBitmapBits(dra,bm2.bmHeight*bm2.bmWidthBytes,px2);
174 
175    MyPaint(hdc);
176 
177    ReleaseDC(hWnd,hdc);
178    delete [] px1;
179    delete [] px2;
180 
181    return TRUE;
182 }
183 //============================================================================================
184 
185 
186 //============================================================================================
187 //
188 //============================================================================================
189 void MyPaint(HDC hdc)
190 {
191     SelectObject(mdc,bg);
192     BitBlt(hdc,0,0,1366,768,mdc,0,0,SRCCOPY);//在窗口位置、大小、原图剪切位
193 
194     SelectObject(mdc,dra);
195     BitBlt(hdc,xstart,ystart,121,120,mdc,0,0,SRCCOPY);
196 }
197 //============================================================================================
198 
199 
200 //============================================================================================
201 //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
202 //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
203 //程序都会接收信息，选择性接受、处理；
204 //============================================================================================
205 LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
206 {
207     PAINTSTRUCT ps;
208     HDC hdc;
209 
210     switch (message)                   //判断消息类型
211     {
212         case WM_PAINT:                //窗口重绘制
213             hdc = BeginPaint(hWnd, &ps);
214             MyPaint(hdc);
215             EndPaint(hWnd, &ps);
216             break;
217         case WM_DESTROY:              //处理窗口结束消息
218             DeleteDC(mdc);
219             DeleteObject(bg);
220             PostQuitMessage(0);
221             break;
222         default:
223             return DefWindowProc(hWnd, message, wParam, lParam);
224    }
225    return 0;
226 }
227 //============================================================================================