1. GDI+ getting started

2. GDI+  Class-based API for C/C++  Windows Graphics Device Interface (GDI)  Device-independent applications  Services 1)2D vector graphics –Drawing primitives 2)Imaging –Bitmap 3)Typography –Display of text 2

3. Setup  Header file –#include  Linking library –#pragma comment (lib, “gdiplus.lib”)  Namespace –using namespace Gdiplus;  Initialization GdiplusStartupInputgdiplusStartupInput; ULONG_PTRgdiplusToken; GdiplusStartup (&gdiplusToken, &gdiplusStartupInput, NULL); 3

4. Pen Graphics graphics (hdc);  DrawLine Penpen (Color (255, 255, 0, 0)); graphics.DrawLine (&pen, 20, 10, 300, 100);  DrawRectangle PenblackPen (Color (255, 0, 0, 255), 5); graphics.DrawRectangle (&blackPen, 10, 100, 100, 50); 4

5. Pen  DrawPath GraphicsPath path; Pen penJoin (Color (255, 0, 255, 0), 25); path.StartFigure (); path.AddLine (Point (100, 200), Point (200, 200)); path.AddLine (Point (200, 200), Point (200, 300)); graphics.DrawPath (&penJoin, &path); 5

6. Brush Graphicsgraphics (hdc); SolidBrush solidBrush (Color (255, 255, 0, 0)); graphics.FillEllipse (&solidBrush, 10, 10, 100, 60); Image image (L"Glass.bmp"); TextureBrush tBrush (&image); tBrush.SetTransform (&Matrix (75.0/128.0, 0.0f, 0.0f, 75.0/128.0, 0.0f, 0.0f)); graphics.FillRectangle (&tBrush, 0, 150, 150, 250); 6

7. String Graphics graphics (hdc); SolidBrush brush (Color (255, 0, 0, 255)); FontFamily family (L“Arial"); Font font (&family, 24, FontStyleRegular, UnitPixel); PointF pointF (10.0f, 20.0f); graphics.DrawString (L"Hello World!", -1, &font, pointF, &brush); 7

8. PlayCap sample

9. Introduction  Based on Win32 API DirectShow API GDI+ API  IDE Visual C++ 2005 Express Platform SDK LNK1104: cannot open file 'atlthunk.lib' (www.codeproject.com/wtl/WTLExpress.asp) 9

10. DirectShow  Capture and playback of multimedia streams for a variety of formats  A media-streaming architecture  You can download Platform SDK or previous DirectX SDK from our course webpage 10

11. Setup  Header file –#include  Linking library –#pragma comment (lib, “Strmiids.lib”)  Set the path in your IDE Platform SDK DirectX SDK 11

12. Writing DirectShow 12

13. Your Job  In HRESULT ProcessBuffer (HDC hDC)  Write a simple image processing program to scan pBuffer.  The information (size, RGB,..) of pBuffer is stored in pInfo->bmiHeader. 13