Question

VARIANT这个类型怎么转int型

Answer 1

long VariantToAnotherType::vartol(const _variant_t& var) //字符，short,int （有符号，无符号）都转换为long
{

long value=0;

switch (var.vt)
{

case VT_UI1: //字符
case VT_I1:
value = var.bVal;
break;
case VT_UI2: //short
case VT_I2:
value = var.iVal;
break;
case VT_I4: //int
case VT_UI4:
value = var.lVal;
break;

default:
throw _T("参数非法，只处理整数，一字节，两字节，四字节");

}
return value;
}