COM高手们，这个问题怎么解决？

[iamxgl]

是一个类型转换，把enum{a,b,c} *pMenuState转换成VARIANT*
可是怎么试都不行呀，为什么呢？（下面代码是我其中一个试验）
void CDECtrl::SetContextMenu()
{
USES_CONVERSION;

VARIANT* pMenuState;
VARIANT* pMenuText;

pMenuText = new VARIANT[7];
pMenuState = new VARIANT[7];
CString strMenuText;

for(int i=0; i<7; i++)
{
strMenuText.LoadString(201 + i);

(pMenuText + i)->vt = VT_BSTR;
(pMenuText + i)->bstrVal = strMenuText.AllocSysString();

(pMenuState + i)->vt = VT_UI1;
(pMenuState + i)->bVal = 0;

strMenuText.Empty();
}

//主要是下面的代码，出了异常
m_pDE->SetContextMenu(pMenuText, pMenuState);

delete []pMenuText;
delete []pMenuState;
}

[masterz]

m_pDE->SetContextMenu(pMenuText, pMenuState);
maybe SetContextMenu expect a VARIANT containing a safearray, you pass VARIANT array pointer to it, without bound information, how can it know the number of elements inside the parameter?

[Fuxiao]

com技术好吗？

[iamxgl]

我知道你的意思，但是具体该怎么做呢？是用SAFEARRAY吗？能具体一点吗？

[xiesl]

用SAFEARRAY 要先用
SAFEARRAY SafeArrayCreate(
VARTYPE vt,
unsigned int cDims,
SAFEARRRAYBOUND FAR* rgsabound
)创建，这个rgsabound是要手工设置的，它包含着数组的相关信息
然后使用COM API 填这个数组

[iamxgl]

结构是这样的
typedef struct FARSTRUCT tagSAFEARRAY {
unsigned short cDims;
unsigned short fFeatures;
unsigned short cbElements;
unsigned short cLocks;
unsigned long handle;
void HUGEP *pvData;
SAFEARRAYBOUND rgsabound[1];
} SAFEARRAY;

typedef struct tagSAFEARRAYBOUND {
unsiggned long cElements;
long lLbound;
} SAFEARRAYBOUND;

可是我还是有很多的小问题没有办法解决：
SAFEARRAY FAR* parray; // VT_ARRAY|*.
这个VT_ARRAY|*,这个*怎么表示呀。是VARIANT v;
v.vt = VT_ARRAY|*;这样么？这样好象不行。

累死了，谁能告诉我答案呀！！！