vc画图程序，实现绘图的基本功能

======================================================================== WIN32 APPLICATION : TCAD ======================================================================== AppWizard has created this TCAD application for you. This file contains a summary of what you will find in each of the files that make up your TCAD application. TCAD.cpp This is the main application source file. TCAD.dsp This file (the project file) contains information at the project level and is used to build a single project or subproject. Other users can share the project (.dsp) file, but they should export the makefiles locally. ///////////////////////////////////////////////////////////////////////////// AppWizard has created the following resources: TCAD.rc This is a listing of all of the Microsoft Windows resources that the program uses. It includes the icons, bitmaps, and cursors that are stored in the RES subdirectory. This file can be directly edited in Microsoft Visual C++. res\TCAD.ico This is an icon file, which is used as the application's icon (32x32). This icon is included by the main resource file TCAD.rc. small.ico %%This is an icon file, which contains a smaller version (16x16) of the application's icon. This icon is included by the main resource file TCAD.rc. ///////////////////////////////////////////////////////////////////////////// Other standard files: StdAfx.h, StdAfx.cpp These files are used to build a precompiled header (PCH) file named TCAD.pch and a precompiled types file named StdAfx.obj. Resource.h This is the standard header file, which defines new resource IDs. Microsoft Visual C++ reads and updates this file. ///////////////////////////////////////////////////////////////////////////// Other notes: AppWizard uses "TODO:" to indicate parts of the source code you should add to or customize. /////////////////////////////////////////////////////////////////////////////