/***code by lichmama from cnblogs.com*@platfrom: code::blocks 13.12/windows xp*/#if defined(UNICODE) && !defined(_UNICODE)    #define _UNICODE#elif defined(_UNICODE) && !defined(UNICODE)    #define UNICODE#endif#include <tchar.h>#include <windows.h>#include ".\gdiplus.h"#define BUTTON 101#define WS_EX_LAYERED 0x80000#define GWL_EXSTYLE  (-20)#define LWA_ALPHA 2#define SC_DRAGMOVE  0xF012/*  Declare Windows procedure  */LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);typedef BOOL (WINAPI *PFSLWA) (HWND hWnd, COLORREF cr, BYTE bAlpha, DWORD dwFlags);PFSLWA SetLayeredWindowAttributes;/*  Make the class name into a global variable  */TCHAR szClassName[ ] = _T("CodeBlocksWindowsApp");int WINAPI WinMain (HINSTANCE hThisInstance,                     HINSTANCE hPrevInstance,                     LPSTR lpszArgument,                     int nCmdShow){    HWND hwnd;               /* This is the handle for our window */    MSG messages;            /* Here messages to the application are saved */    WNDCLASSEX wincl;        /* Data structure for the windowclass */    /* The Window structure */    wincl.hInstance = hThisInstance;    wincl.lpszClassName = szClassName;    wincl.lpfnWndProc = WindowProcedure;      /* This function is called by windows */    wincl.style = CS_DBLCLKS;                 /* Catch double-clicks */    wincl.cbSize = sizeof (WNDCLASSEX);    /* Use default icon and mouse-pointer */    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);    wincl.lpszMenuName = NULL;                 /* No menu */    wincl.cbClsExtra = 0;                      /* No extra bytes after the window class */    wincl.cbWndExtra = 0;                      /* structure or the window instance */    /* Use Windows‘s default colour as the background of the window */    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;    /* Register the window class, and if it fails quit the program */    if (!RegisterClassEx (&wincl))        return 0;    /* The class is registered, let‘s create the program*/    hwnd = CreateWindowEx (           0,                   /* Extended possibilites for variation */           szClassName,         /* Classname */           NULL, //_T("Code::Blocks Template Windows App"),       /* Title Text */           WS_POPUP, //WS_OVERLAPPEDWINDOW, /* default window */           300,       /* Windows decides the position */           100,       /* where the window ends up on the screen */           770,                 /* The programs width */           512,                 /* and height in pixels */           HWND_DESKTOP,        /* The window is a child-window to desktop */           NULL,                /* No menu */           hThisInstance,       /* Program Instance handler */           NULL                 /* No Window Creation data */           );    /* Make the window visible on the screen */    ULONG_PTR gdiplusToken;    Gdiplus::GdiplusStartupInput gdiplusInput;    GdiplusStartup(&gdiplusToken, &gdiplusInput, NULL);    ShowWindow(hwnd, nCmdShow);    /* Run the message loop. It will run until GetMessage() returns 0 */    while (GetMessage (&messages, NULL, 0, 0))    {        /* Translate virtual-key messages into character messages */        TranslateMessage(&messages);        /* Send message to WindowProcedure */        DispatchMessage(&messages);    }    /* The program return-value is 0 - The value that PostQuitMessage() gave */    Gdiplus::GdiplusShutdown(gdiplusToken);    return messages.wParam;}/*  This function is called by the Windows function DispatchMessage()  */LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){    switch (message)                  /* handle the messages */    {        case WM_CREATE:            //SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_CAPTION);            //SetWindowPos(hwnd, NULL, 0, 0, 0, 0, SWP_NOSIZE|SWP_NOZORDER|SWP_DRAWFRAME);            SetWindowRgn(hwnd, CreateRoundRectRgn(0,0,770,512,15,15), TRUE);            SetWindowLong(hwnd, GWL_EXSTYLE, GetWindowLong(hwnd, GWL_EXSTYLE)|WS_EX_LAYERED);            {                HMODULE hmod;                hmod=(HMODULE)LoadLibrary("user32.dll");                SetLayeredWindowAttributes=(PFSLWA)GetProcAddress(hmod, "SetLayeredWindowAttributes");                SetLayeredWindowAttributes(hwnd, 0, 220, LWA_ALPHA);                CloseHandle(hmod);            }            break;        case WM_PAINT:            {                PAINTSTRUCT ps;                HBITMAP hbmp;                BITMAP bmp;                HDC hmemdc;                HDC hdc;                BeginPaint(hwnd, &ps);                hdc=GetWindowDC(hwnd);                hbmp=(HBITMAP)LoadImage(NULL,                    "D:\\12.bmp",                    IMAGE_BITMAP,                    0,                    0,                    LR_DEFAULTSIZE|LR_LOADFROMFILE);                GetObject(hbmp, sizeof(bmp), &bmp);                hmemdc=CreateCompatibleDC(NULL);                SelectObject(hmemdc, hbmp);                BitBlt(hdc, 0, 0, bmp.bmWidth, bmp.bmHeight, hmemdc, 0, 0, SRCCOPY);                DeleteObject(hbmp);                DeleteDC(hmemdc);                ReleaseDC(hwnd, hdc);                EndPaint(hwnd, &ps);            }            {                PAINTSTRUCT ps;                HDC hdc;                UINT width;                UINT height;                WCHAR file[]={L"D:\\3.png"};                BeginPaint(hwnd, &ps);                hdc=GetWindowDC(hwnd);                Gdiplus::GpImage *image;                Gdiplus::GpGraphics *graphics;                Gdiplus::DllExports::GdipLoadImageFromFile(file, &image);                Gdiplus::DllExports::GdipCreateFromHDC(hdc, &graphics);                Gdiplus::DllExports::GdipGetImageWidth(image, &width);                Gdiplus::DllExports::GdipGetImageHeight(image, &height);                Gdiplus::DllExports::GdipDrawImageRect(graphics, image, 700, 10, width*0.1, height*0.1);                Gdiplus::DllExports::GdipDisposeImage(image);                Gdiplus::DllExports::GdipDeleteGraphics(graphics);                ReleaseDC(hwnd, hdc);                EndPaint(hwnd, &ps);            }            break;        case WM_LBUTTONDOWN:            {                 //(700,10)-(751.61)                UINT cx=LOWORD(lParam);                UINT cy=HIWORD(lParam);                if(cx>=700 && cx<=751){                    if(cy>=10 && cy<=61){                        if(MessageBox(hwnd, "你希望退出程序么?", "MessageBox", MB_YESNO)==IDYES)DestroyWindow(hwnd);                        break;                    }                }            }            SendMessage(hwnd,WM_SYSCOMMAND,SC_DRAGMOVE,0);            break;        case WM_DESTROY:            PostQuitMessage (0);       /* send a WM_QUIT to the message queue */            break;        default:                      /* for messages that we don‘t deal with */            return DefWindowProc (hwnd, message, wParam, lParam);    }    return 0;}