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: 5 K0 S# x- O& X: {Name = (WCHAR *) L"Poke"; 5 A6 a M* w; Z 3 S% M$ s3 r( T. z+ Q# V; g: r8 _ hr = m_pDisp->GetIDsOfNames () J& _& h+ ~6 ?6 \8 k
IID_NULL, // reserved" j/ M0 G0 C5 R% L1 y
&Name, // Array of names to get IDs for 4 Y0 }& {2 C9 d; G4 c' ?; d 1, // # of names in the array7 [' }8 O6 w7 S- h3 Z* z" G
LOCALE_SYSTEM_DEFAULT, // System locale 2 @$ |0 @ G7 ]5 F8 | &pokeID); // Array of IDs to fill on output : I0 ^+ E$ t. K ~# ~8 V" J 5 ]- N# j* f. b1 m6 K
if (hr)6 F6 p+ |' F3 I; j& {0 ?" S# c
{ G% q" g; E9 \/ x; S, f MessageBox ("Get Poke Unsuccessful");3 s5 b7 V7 ]; c
return; ' K$ n* l; u/ E; F7 x3 s3 V }8 W U2 V8 y8 ?8 V& Q9 ?4 `4 G4 |# j
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/**************************传递数据给extend**************************************/ |/ k% Q- ^2 B& s: @, V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , ]" b9 I5 e' Q; g; M " Y7 Z# l' q" k# G9 ~6 f8 Q5 p: p
valueStr = SysAllocString((WCHAR *) L"1232"); : ]* T0 A2 m8 P* D VariantInit(&pokeVariant[0]); + o, G3 X; w' L( h7 e pokeVariant[0].vt = VT_BSTR; " q5 m) Q0 S! N E: X: k pokeVariant[0].bstrVal = valueStr;1 W+ F2 q+ h# G: m8 N; r7 _" b
. Z; I# ?0 J0 A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; o0 x6 }" Q5 T1 Z! k8 _ VariantInit(&pokeVariant[1]); : o; g7 T7 ?. S. v8 ~7 _; ]5 ]' a4 T pokeVariant[1].vt = VT_BSTR; 7 f) M- W. c/ e! H* m0 [- J pokeVariant[1].bstrVal = itemStr; m/ e: x- `2 |2 k% k/ m+ ~
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topicStr = SysAllocString((WCHAR *) L"system"); 6 j1 A# d+ |4 F' ?* G VariantInit(&pokeVariant[2]); 9 Y( A! u8 i7 Z( w- o1 ^
pokeVariant[2].vt = VT_BSTR;% o5 u F- t1 X. [( U: I
pokeVariant[2].bstrVal = topicStr; ! O9 d- _+ f8 p/ @3 ? 1 q; M H' b1 f# \# ?+ ~// Set the DISPPARAMS structure that holds the variant. . x6 H: {" _* V- O$ y! l H- _1 Z: m7 X! u9 i" u7 M. `9 t" K+ n
dp.rgvarg = pokeVariant;% O# k# ? v: e/ C% o1 Q V6 i# D$ N
dp.cArgs = 3; , d4 V7 j* y2 Q dp.rgdispidNamedArgs = NULL; 2 V: J" y- N; K dp.cNamedArgs = 0; y) v2 ]: V2 z2 d+ k+ T4 o ) I; R" O+ v+ r6 L/ x// Call IDispatch::Invoke() J! n' i$ f! Z3 r
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hr = m_pDisp->Invoke(5 ~% I# N! ]- ]/ Q
pokeID, 6 ?, N6 v$ u& H: t% _! ` IID_NULL,) ~( M4 e' B2 ^: h
LOCALE_SYSTEM_DEFAULT,5 Z9 k' x/ u3 M8 f
DISPATCH_METHOD,2 J/ p2 M$ A/ N. }
&dp,3 N8 z. T ^9 M" d" a
NULL,0 F" n( o$ V# S5 }
&ei, 9 v! \* O0 w+ u7 y &uiErr);6 |0 a9 A$ Y& e3 n A
7 n" ?/ D7 A6 H. T" M: }8 J SysFreeString(topicStr); $ C+ G5 W8 p) x SysFreeString(itemStr); ( e' l7 }: O. D& w# c4 U SysFreeString(valueStr);5 I5 v. F o. A
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现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? ' p1 M7 g4 S* N; g此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现???? 6 e4 n3 j1 Q( e3 {+ ]+ I: L, M4 Q( o: h+ c3 Q
& z3 P6 K- Y; Q3 K& }* \2.这是request的程序 4 R# p3 [" Y6 d% Z* N6 _// Request a value from Extend" C- k' X+ B+ D4 g
// ! \, {* E" b$ _: H% y7 y; @// Initialize the variant that will hold the BSTR. Set the variant's ( }5 E$ O' _% G; Z7 h1 n; @// type flag to indicate the fact that this variant holds a BSTR. Place the: U' N& \# F9 h/ s
// BSTR into the variant structure.' V1 _# Q- z$ \; g' J
5 p$ W. ]8 @; e6 Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% Q" ~/ t* S+ Q: ~