VC7（VS2003.net）中开发ActiveX控件相关
今天在VC7上开发ActiveX控件，添加函数害的我挣了一下午，现在想想真是怀恋VC6的ClassWizard啊。在网上找了很多资料，也没发现与此相关的，所以就记录下来，仅供参考啊http://www.agoit.com/images/smiles/icon_biggrin.gif创建ActiveX工程后，只能靠手动添加函数，这里要注意四个地方都要修改，才能最终达到效果：
1、.h中：加入函数声明
afx_msg short display(LPCTSTR lpszData);
2、.cpp中加入函数映射
BEGIN_DISPATCH_MAP(CtestCtrl, COleControl)DISP_FUNCTION_ID(CtestCtrl,"display",2223,display,VT_I2,VTS_BSTR)END_DISPATCH_MAP()
在此处注意下：DISP_FUNCTION_ID的几个参数：
I、该类的名称
II、类中扩展名同后面的函数名一样，只是多了双引号
III、显示的ID（尽量用大点的，一面和某些ID冲突）
IV、函数名
V、返回值类型：
VI、参数类型
VT_EMPTY = 0, VT_NULL = 1, VT_I2 = 2, VT_I4 = 3, VT_R4 = 4, VT_R8 = 5, VT_CY = 6, VT_DATE = 7, VT_BSTR = 8, VT_DISPATCH = 9, VT_ERROR = 10, VT_BOOL = 11, VT_VARIANT = 12, VT_UNKNOWN = 13, VT_DECIMAL = 14, VT_I1 = 16, VT_UI1 = 17, VT_UI2 = 18, VT_UI4 = 19, VT_I8 = 20, VT_UI8 = 21, VT_INT = 22, VT_UINT = 23, VT_VOID = 24, VT_HRESULT= 25, VT_PTR = 26, VT_SAFEARRAY = 27, VT_CARRAY = 28, VT_USERDEFINED = 29, VT_LPSTR = 30, VT_LPWSTR = 31, VT_FILETIME = 64, VT_BLOB = 65, VT_STREAM = 66, VT_STORAGE = 67, VT_STREAMED_OBJECT = 68, VT_STORED_OBJECT = 69, VT_BLOB_OBJECT = 70, VT_CF = 71, VT_CLSID = 72, VT_VECTOR = 0x1000, VT_ARRAY = 0x2000, VT_BYREF = 0x4000, VT_RESERVED = 0x8000, VT_ILLEGAL = 0xffff, VT_ILLEGALMASKED = 0xfff, VT_TYPEMASK = 0xfff
VI、参数类型
3、CPP中加入函数实现：
short CtestCtrl::display(LPCTSTR lpszData){ AfxMessageBox(lpszData);}
4、.idl 文件中还要加相关的接口调度说明
short display(BSTR lpszData);
这四个地方加好了就完工了~~
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