//贝神杰作，仅作记录，以后学习

#define GDIPVER 0x0110 //定义高版本的GDI+(1.1)

#include

#include

#include

#include

#include

#pragma comment(lib,"GdiPlus.lib")

using namespace Gdiplus;

#include

#pragma comment(lib,"dwmapi.lib")

//Aero效果是否已启用

BOOL IsCompositionEnabled()

{

BOOL bEnabled,bResult;

bResult = (SUCCEEDED(DwmIsCompositionEnabled(&bEnabled)) && bEnabled);

return bResult;

}

//对已分层的窗口启动玻璃效果

HRESULT EnableBlurBehindWindow(HWND hWnd, //窗口句柄

BOOL bEnable = TRUE, //启用或禁用

HRGN hRgn = 0, //模糊窗体中某个区域

BOOL bTransitionOnMaximized = FALSE) //最大化时是否启用

{

DWM_BLURBEHIND blurBehind = { 0 };

blurBehind.dwFlags = DWM_BB_ENABLE | DWM_BB_TRANSITIONONMAXIMIZED;

blurBehind.fEnable = bEnable;

blurBehind.fTransitionOnMaximized = bTransitionOnMaximized;

if (bEnable && hRgn != NULL)

{

blurBehind.dwFlags |= DWM_BB_BLURREGION;

blurBehind.hRgnBlur = hRgn;

}

return DwmEnableBlurBehindWindow(hWnd,&blurBehind);

}

LRESULT WINAPI WinProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)

{

switch(msg)

{

case WM_CREATE:

{

HDC hDC = GetDC(hWnd);

//获得窗口宽高

RECT rcClient;

GetClientRect(hWnd,&rcClient);

UINT uWidth,uHeight;

uWidth = rcClient.right - rcClient.left;

uHeight = rcClient.bottom - rcClient.top;

//创建一个和窗口宽高相同的内存DC并创建相应位图

HDC hMemDC = CreateCompatibleDC(hDC);

HBITMAP hBitmap = CreateCompatibleBitmap(hDC,uWidth,uHeight);

HBITMAP hBitmapOld = (HBITMAP)SelectObject(hMemDC,hBitmap);

SetBkMode(hMemDC, TRANSPARENT);

//对该内存DC进绘制Alpha图像

{

Gdiplus::Graphics grap(hMemDC);

Gdiplus::LinearGradientBrush lgb(

Point(0,0),

Point(0,uHeight),

Color(0,255,0,255),

Color(255,0,255,0));

grap.FillRectangle(&lgb,0,0,uWidth,uHeight);

SolidBrush b(Color(0xFF,0x00,0x00,0xFF)); //构造纯色画刷

FontFamily ff(L"Times New Roman"); //构造字体族

Font f( //构造字体

&ff, //字体族

24, //字体尺寸

FontStyleRegular, //字体样式

UnitPixel); //大小单元(像素)

PointF p(10.0F,20.0F); //构造精度点

grap.DrawString( //绘制字符串

L"Hello World!", //字符串

-1, //字符串长度(-1为以Null为结束符)

&f, //字体

p, //位置

&b); //颜色

}

{

LPCTSTR lpstrOut = _T("Hello World!!!");

RECT rc = { 100,100,300,120 };

SetTextColor( hMemDC, RGB(0xFF,0x00,0x00) | 0xFE000000 );

DrawText( hMemDC, lpstrOut, _tcslen(lpstrOut), &rc, DT_CENTER | DT_SINGLELINE | DT_VCENTER );

}

//设置透明效果

SIZE size = {uWidth,uHeight};

POINT point = {0,0};

BLENDFUNCTION BlendFunc;

BlendFunc.BlendOp = AC_SRC_OVER;

BlendFunc.BlendFlags = 0;

BlendFunc.SourceConstantAlpha = 0xFF;

BlendFunc.AlphaFormat = AC_SRC_ALPHA;

UpdateLayeredWindow(

hWnd,

NULL,

NULL,

&size,

hMemDC,

&point,

RGB(0,0,0),

&BlendFunc,

ULW_ALPHA);

if(IsCompositionEnabled() == TRUE)

{

EnableBlurBehindWindow(hWnd,TRUE);

}

//释放资源

SelectObject(hMemDC,hBitmapOld);

DeleteDC(hMemDC);

ReleaseDC(hWnd,hDC);

}

break;

case WM_PAINT:

{

PAINTSTRUCT PaintStruct;

HDC hDC = BeginPaint(hWnd,&PaintStruct);

//在此处添加重绘代码

EndPaint(hWnd,&PaintStruct);

}

break;

case WM_LBUTTONDOWN:

{

PostMessage( hWnd, WM_NCLBUTTONDOWN, HTCAPTION, 0 );

}

break;

case WM_DWMCOMPOSITIONCHANGED:

EnableBlurBehindWindow(hWnd,IsCompositionEnabled());

break;

case WM_DESTROY:

PostQuitMessage(0);

break;

}

return DefWindowProc(hWnd, msg, wParam, lParam);

}

INT WINAPI _tWinMain(HINSTANCE hInst, HINSTANCE, LPTSTR, INT)

{

//初使化GDI+ ----------------------------------------

ULONG_PTR GdiplusToken;

GdiplusStartupInput GdiplusStartupInput;

Status sResult = GdiplusStartup(&GdiplusToken, &GdiplusStartupInput, NULL);

if(sResult != Ok)return 0;

WNDCLASSEX WndClassEx =

{

sizeof(WNDCLASSEX), //窗口类大小

CS_HREDRAW | CS_VREDRAW, //水平和垂直重绘

WinProc, //窗口过程

0L, //窗口类扩展

0L, //窗口扩展

GetModuleHandle(NULL), //实例句柄

LoadIcon(NULL,IDI_APPLICATION), //默认的窗口大图标

LoadCursor(NULL,IDC_ARROW), //默认的窗口光标

(HBRUSH)GetStockObject(WHITE_BRUSH),//默认的窗口背景画刷

NULL, //默认的窗口菜单名称

_T("SimpleWindowClass"), //窗口类名

LoadIcon(NULL,IDI_APPLICATION) //默认的窗口小图像

};

RegisterClassEx(&WndClassEx);

HWND hWnd = CreateWindowEx(

WS_EX_LAYERED,

_T("SimpleWindowClass"), //使用的窗口类名

_T("Simple Window"), //窗口标题

WS_OVERLAPPEDWINDOW, //窗口样式

CW_USEDEFAULT, //默认的X坐标

CW_USEDEFAULT, //默认的Y坐标

CW_USEDEFAULT, //默认的宽度

CW_USEDEFAULT, //默认的高度

GetDesktopWindow(), //父窗口句柄 HWND_MESSAGE为隐藏窗口

NULL, //菜单句柄

WndClassEx.hInstance, //主模块句柄

NULL); //参数.

ShowWindow(hWnd, SW_SHOWDEFAULT);

UpdateWindow(hWnd);

MSG Msg;

do

{

GetMessage(&Msg, NULL, 0U, 0U);

TranslateMessage(&Msg);

DispatchMessage(&Msg);

}while(Msg.message != WM_QUIT);

UnregisterClass(

_T("SimpleWindowClass"),

WndClassEx.hInstance);

//关闭GDI+ ----------------------------------------

GdiplusShutdown(GdiplusToken);

return 0;

}

实现效果：