Using C++ to write a DLL can generate graphics , and VB to call it for test.

《通过VB结构数组输入数据VC编写DLL实现图形文件(1)》配套源代码
............................................................\Sam_src
............................................................\.......\MyStDll
............................................................\.......\.......\Debug
............................................................\.......\.......\MyDll.cpp
............................................................\.......\.......\MyDll.def
............................................................\.......\.......\MyDll.h
............................................................\.......\.......\MyStDll.dsp
............................................................\.......\.......\MyStDll.dsw
............................................................\.......\.......\MyStDll.ncb
............................................................\.......\.......\MyStDll.opt
............................................................\.......\Readme.txt
............................................................\.......\VBcall
............................................................\.......\......\1.bmp
............................................................\.......\......\frmTest.frm
............................................................\.......\......\Graph_VB.vbp
............................................................\.......\......\Graph_VB.vbw
............................................................\.......\......\Grpah_VB.exe
............................................................\.......\......\MyStDll.dll
............................................................\.......\......\XGraph.dll

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