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:8 m* s a2 y8 T6 y6 _9 ~
Name = (WCHAR *) L"Poke";4 ~: c& @" i n. I ?
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hr = m_pDisp->GetIDsOfNames ( ; Q$ O8 D( C, t5 e' T) a! A IID_NULL, // reserved ! b% x$ B$ E' f3 |; H1 a2 d; W &Name, // Array of names to get IDs for& k! g s& e; \4 O3 j" v3 M5 V
1, // # of names in the array + w9 q* J5 Y& Z, v" }/ r LOCALE_SYSTEM_DEFAULT, // System locale ! U' i5 W# k7 i7 Q! J &pokeID); // Array of IDs to fill on output, B5 j0 r' j2 s/ F/ L. `- [
; G* n& G) U& |# ]9 H2.这是request的程序: q- Z* c& i4 l
// Request a value from Extend6 v5 k/ |3 r- ^' J7 L
// q8 W& x/ }; `5 o" F( K// Initialize the variant that will hold the BSTR. Set the variant's 5 D" `/ B2 _+ y3 S8 ]" v3 ~// type flag to indicate the fact that this variant holds a BSTR. Place the1 O/ ^9 O2 f% w* @! u
// BSTR into the variant structure. * b! m R/ O" Z " n8 F$ |4 K8 V# t9 K requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " N) D: {1 \0 d/ V# e4 O3 U0 m ) u: Q1 _) k; a" A' Q" u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 Q+ g- b) ^3 V5 z, U) z* o5 K VariantInit(&requestVariant[0]); 4 E# G1 s6 e0 [! c; j: U9 O requestVariant[0].vt = VT_BSTR; 4 d9 u0 C- a! i" h requestVariant[0].bstrVal = itemStr;2 E$ [; R( f1 ]( O' K
3 O" p0 M' s- H8 j7 b5 r topicStr = SysAllocString((WCHAR *) L"system");9 G* c/ [% n6 C; ~
VariantInit(&requestVariant[1]); 2 @! N5 R& ^! D% \# w$ b: ] requestVariant[1].vt = VT_BSTR;5 m7 i4 L- N6 Q/ S8 T2 c, {5 l' }
requestVariant[1].bstrVal = topicStr;, N k3 Y6 X* i* y( E
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// Set the DISPPARAMS structure that holds the variant. & u# n D( A0 S* u' M2 u) K, b: G+ U" v4 w
dp2.rgvarg = requestVariant;1 V- U. I" o! o8 N
dp2.cArgs = 2;3 i8 K7 [- D4 G" X0 u- O9 l
dp2.rgdispidNamedArgs = NULL; 0 |$ P; ^" Y& J dp2.cNamedArgs = 0;+ ^8 T' K7 J9 _/ r