[这个贴子最后由默数悲伤在 2006/12/25 09:10am 第 1 次编辑]
GDI+中有一套绘制函数，很是方便。
GDI+使用起来也很方便。。。#include
#include
using namespace Gdiplus;
#pragma comment(lib, "Gdiplus.lib")
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
VOID AddExample(HDC hdc);
INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, PSTR, INT iCmdShow)
{
HWND hWnd;
MSG msg;
WNDCLASS wndClass;
GdiplusStartupInput gdiplusStartupInput;
ULONG_PTR gdiplusToken;
// Initialize GDI+.
GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
wndClass.style = CS_HREDRAW | CS_VREDRAW;
wndClass.lpfnWndProc = WndProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = 0;
wndClass.hInstance = hInstance;
wndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndClass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wndClass.lpszMenuName = NULL;
wndClass.lpszClassName = TEXT("GDIPlus Test");
RegisterClass(&wndClass);
hWnd = CreateWindow(
TEXT("GDIPlus Test"), // window class name
TEXT("GDIPlus Test"), // window caption
WS_OVERLAPPEDWINDOW, // window style
CW_USEDEFAULT, // initial x position
CW_USEDEFAULT, // initial y position
CW_USEDEFAULT, // initial x size
CW_USEDEFAULT, // initial y size
NULL, // parent window handle
NULL, // window menu handle
hInstance, // program instance handle
NULL); // creation parameters
ShowWindow(hWnd, iCmdShow);
UpdateWindow(hWnd);
while(GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
GdiplusShutdown(gdiplusToken);
return msg.wParam;
} // WinMain
LRESULT CALLBACK WndProc(HWND hWnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
switch(message)
{
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
AddExample(hdc);
EndPaint(hWnd, &ps);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
} // WndProc
VOID AddExample(HDC hdc)
{
Graphics graphics(hdc);
Pen pen(Color(255, 0, 0, 255));
PenGreenPen(Color(255, 123, 255, 0), 10);
GreenPen.SetAlignment(PenAlignmentInset);
// 直线
graphics.DrawLine(&GreenPen, 50, 80, 50, 300);
graphics.DrawLine(&pen, 50, 80, 50, 300);
// 文字
SolidBrush brush(Color(255, 0, 0, 255));
FontFamily fontFamily(L"Times New Roman");
Font font(&fontFamily, 24, FontStyleRegular, UnitPixel);
PointF pointF(10.0f, 20.0f);
graphics.DrawString(L"Hello World!", -1, &font, pointF, &brush);
// 矩形
pen.SetWidth(5);
graphics.DrawRectangle(&pen, 20, 20, 300, 200);
graphics.DrawRectangle(&GreenPen, 20, 20, 300, 200);
// 带标志的直线
pen.SetEndCap(LineCapArrowAnchor);
pen.SetStartCap(LineCapRoundAnchor);
graphics.DrawLine(&pen, 100, 100, 300, 100);
// Joining lines
GraphicsPath path;
Pen penJoin(Color(255, 0, 0, 255), 8);
path.StartFigure();
path.AddLine(Point(50, 200), Point(100, 200));
path.AddLine(Point(100, 200), Point(100, 250));
penJoin.SetLineJoin(LineJoinMiter); // LineJoin: Bevel, Round, MiterClipped
graphics.DrawPath(&penJoin, &path);
// 虚线
pen.SetDashStyle(DashStyleDash); // DashStyle: Solid, Dot, DashDot, DashDotDot, Custom
pen.SetWidth(1);
graphics.DrawRectangle(&pen, 300, 200, 400, 500);
REAL dashValues[4] = {5, 2, 15, 4};
pen.SetDashPattern(dashValues, 4);
pen.SetWidth(5);
graphics.DrawLine(&pen, Point(250, 60), Point(300, 220));
//线条填充
Image image(L"Logo1.gif");
TextureBrush tBrush(&image);
Pen texturedPen(&tBrush, 30);
graphics.DrawImage(&image, 310, 300, image.GetWidth(), image.GetHeight());
graphics.DrawEllipse(&texturedPen, 210, 20, 200, 100);
//////////////////////////////////////////////////////////////////////////
// GraphicsPath.AddArc();
path.CloseFigure();
path.StartFigure();
path.AddArc(100, 200, 100, 100, 0.0, 360.0);
path.AddArc(200, 300, 100, 100, 0.0, 360.0);
path.CloseFigure();
graphics.DrawPath(&pen, &path);
// GraphicsPath.AddBezier();
pen.SetDashStyle(DashStyleSolid);
pen.SetStartCap(LineCapNoAnchor);
pen.SetEndCap(LineCapNoAnchor);
pen.SetWidth(1);
path.AddBezier(Point(300,30), Point(400, 80), Point(420, 300), Point(460,460));
path.CloseFigure();
graphics.DrawPath(&pen, &path);
// GraphicsPath.AddBeziers()
Point pts[] = {Point(50,50),
Point(60,20),
Point(70,100),
Point(80,50),
Point(120,40),
Point(150,80),
Point(170,30)};
path.AddBeziers(pts, 7);
path.CloseFigure();
graphics.DrawPath(&pen, &path);
PointF ptsf[] = {PointF(150.0f,50.0f),
PointF(160.0f,20.0f),
PointF(170.0f,100.0f),
PointF(180.0f,50.0f),
PointF(220.0f,40.0f),
PointF(250.0f,80.0f),
PointF(270.0f,30.0f)};
path.AddBeziers(ptsf, 7);
path.CloseFigure();
graphics.DrawPath(&pen, &path);
// GraphicsPath.AddClosedCurve();
PointF ptscf[] = {PointF(450.0f,150.0f),
PointF(460.0f,120.0f),
PointF(470.0f,100.0f),
PointF(480.0f,150.0f)};
path.AddClosedCurve(ptscf, 4, 1.4f);
path.CloseFigure();
graphics.DrawPath(&pen, &path);
// GraphicsPath.AddCurve();
PointF ptc[] = {PointF(450.0f, 50.0f),
PointF(470.0f, 80.0f),
PointF(400.0f, 100.0f),
PointF(430.0f, 40.0f),
PointF(450.0f, 90.0f),
PointF(480.0f, 30.0f),
PointF(410.0f, 120.0f),
PointF(440.0f, 80.0f)};
path.AddCurve(
ptc,
8, // There are eight points in the array.
2, // Start at the point with index 2.
4, // Four segments. End at the point with index 6.
1.0f);
path.CloseFigure();
graphics.DrawPath(&pen, &path);
//GraphicsPath.AddPie();
path.AddPie(300.0f, 300.0f, 400.0f, 400.0f, 0.0f, 270.0f);
path.CloseFigure();
graphics.DrawPath(&pen, &path);
} |
