我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据: ( f( H7 T7 i. o. sName = (WCHAR *) L"Poke"; 4 N5 H) M6 O8 N) _) V7 I$ v 4 ~! r* @; G) D. W" Z# U/ |% M2 | hr = m_pDisp->GetIDsOfNames ( 3 x# m( L, U# W3 X3 l; E IID_NULL, // reserved+ A9 l2 x+ @* \8 c
&Name, // Array of names to get IDs for 7 D- }: J- w3 e N 1, // # of names in the array . R; n, M& C+ ?; e& T) k- l; ~4 m LOCALE_SYSTEM_DEFAULT, // System locale) q2 n" w1 `, w) _- v; Z
&pokeID); // Array of IDs to fill on output- A7 G" \3 |. g3 p
# u. `: J9 j# s2 Z 8 K$ d$ ^7 k; q2.这是request的程序 " ^4 R4 Q# Q$ T3 b& O! ]// Request a value from Extend , N+ P2 W/ x2 O9 f5 z. d( d// 5 k* z4 @. V/ { L2 {// Initialize the variant that will hold the BSTR. Set the variant's, i) w' R5 i% `/ p7 y( R* b
// type flag to indicate the fact that this variant holds a BSTR. Place the $ ? F; e6 L' v) s* j// BSTR into the variant structure. - A. z0 h+ X4 R' z9 H/ ]+ b 2 {2 Z8 R+ o8 `) M5 j2 V) q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" w, a) D8 D& O3 U
! O( p1 G: a p- {! G0 [1 y0 ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # f' ?8 g1 z2 Y- L7 H VariantInit(&requestVariant[0]); 0 [4 ]: J1 s$ Q1 f! L requestVariant[0].vt = VT_BSTR; 5 D% q9 R6 s" `2 a4 g$ G( o requestVariant[0].bstrVal = itemStr; M3 K9 H- m+ c3 }* ? 8 S' u6 \7 ]# O topicStr = SysAllocString((WCHAR *) L"system");% z+ i4 L2 }9 Q4 M
VariantInit(&requestVariant[1]); ' S! S( D' C" B
requestVariant[1].vt = VT_BSTR; & f6 }% m' X$ ^4 \7 h1 [0 M- ^8 N6 x requestVariant[1].bstrVal = topicStr; 2 f: A/ J/ w) g8 S3 U" J2 [8 r3 z1 v1 @- x
// Set the DISPPARAMS structure that holds the variant.8 f- h9 i5 C- u& f