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: ' M% h8 o2 M OName = (WCHAR *) L"Poke";) D( a, E9 M) |( |" S+ B# {2 A
4 H1 N+ W/ P( p( O9 f4 I8 C& H& P hr = m_pDisp->GetIDsOfNames (0 Y* g# E) y0 K Y1 [$ Z# R+ p5 k
IID_NULL, // reserved3 @1 p0 L+ }6 h
&Name, // Array of names to get IDs for 0 \9 |7 q6 t; H% `' K 1, // # of names in the array 2 I- G* E+ j5 C LOCALE_SYSTEM_DEFAULT, // System locale 5 _/ A& u" M% P9 m- E c1 f &pokeID); // Array of IDs to fill on output * R" p2 i ~9 E0 m3 i1 x; } 2 V; m; [1 Y/ { |
if (hr) , q% L; `0 Z: ` {4 F, p) u) w$ i B3 B/ G+ e
MessageBox ("Get Poke Unsuccessful"); . n: I8 R; u9 t3 ^: r8 N4 \8 j return;+ e8 _8 V5 Y8 U- N3 z7 }; L' L
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/**************************传递数据给extend**************************************/ 2 e# [- M% c/ _: B% d8 l7 g& X pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);. E7 U6 e' Z* K, O
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valueStr = SysAllocString((WCHAR *) L"1232"); # o. l8 [5 @6 A( G VariantInit(&pokeVariant[0]); * @4 n3 W7 Y) @ d [
pokeVariant[0].vt = VT_BSTR;) u e, ]6 M9 J& O
pokeVariant[0].bstrVal = valueStr; " x. h, @; m, @9 ~" F / O8 f0 K3 O1 p4 G5 w7 i+ H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; [/ g& ^4 _3 D4 k: } VariantInit(&pokeVariant[1]); $ h( F5 a, o4 l2 c/ A9 @& e pokeVariant[1].vt = VT_BSTR;3 \7 F+ I3 i8 C+ S' j- z+ y
pokeVariant[1].bstrVal = itemStr; 9 e- F, a5 h6 `" S. z v' r$ r! ]' P4 m* q! L0 O& [) c% u
topicStr = SysAllocString((WCHAR *) L"system");' l2 ^ ^& |+ T+ c7 O
VariantInit(&pokeVariant[2]); ; j& z% L7 N: s6 w7 a& Z
pokeVariant[2].vt = VT_BSTR; % r+ ?4 D2 R1 W: p- \; [' C pokeVariant[2].bstrVal = topicStr; ) n7 B, _% z/ e# ~4 w' s; m" U 3 h6 _: T% i$ X1 f) s// Set the DISPPARAMS structure that holds the variant. " \ A# c! B M# F q # Q& m( X: s6 H3 d# h dp.rgvarg = pokeVariant;. _4 C6 P" e; ^8 L
dp.cArgs = 3; " E& r) N9 `8 q) n9 i dp.rgdispidNamedArgs = NULL; ( b, f7 G- h6 W1 Z. y2 h dp.cNamedArgs = 0;+ p# l! A4 L6 r4 I& i+ J
# ^& w1 r( C$ I1 h. ^; T5 V// Call IDispatch::Invoke()$ P2 d) V; M" l7 y5 |
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hr = m_pDisp->Invoke( & d: R: z g& B: {7 E pokeID,4 |# k; v' R) g) o( {8 G
IID_NULL,' a) n0 {5 d: Q/ W+ B) h6 O7 p
LOCALE_SYSTEM_DEFAULT, 2 i! |5 t N, p: V: ^ DISPATCH_METHOD,$ H5 I: s$ Z ?1 y
&dp, 3 F% C2 T) ]1 t' S% F NULL,' p( B$ B- D3 s ~! O
&ei, # T0 j/ Z$ d+ K' d* [ &uiErr); " M* g, }5 A- `, U9 R3 ^" j3 {) O& h/ k5 t' _7 Q
SysFreeString(topicStr);& X& X @- Z6 u' S4 B. o) q5 l
SysFreeString(itemStr);! p' l) {( G0 A& C8 _5 q$ O
SysFreeString(valueStr); + ?9 z4 P3 Q4 P1 c F9 v# p ' a2 f! m; s0 G* u5 e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??? % u/ n D7 H# v1 r7 \. A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????2 V' b( [: I1 N
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2.这是request的程序 1 a' b0 k) C7 p# v// Request a value from Extend- {/ W( Z; B7 u: M0 h1 Y5 E
//: v/ e9 c5 r0 B, k
// Initialize the variant that will hold the BSTR. Set the variant's2 E7 \3 l% Z! |1 Q
// type flag to indicate the fact that this variant holds a BSTR. Place the ) W1 H- B6 @ N// BSTR into the variant structure. / U2 s3 {, U1 I5 i2 V ' ?. \2 l& g' z0 j0 L( @$ p+ J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ F- j. `2 t; X3 k9 [
+ l. F' [& @. G0 v0 T$ m! m/ E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( @) X; W1 a2 D& s, [! h$ O VariantInit(&requestVariant[0]); $ ~* _3 H# L! h requestVariant[0].vt = VT_BSTR; & A; ]" i, x# m' s requestVariant[0].bstrVal = itemStr;# t7 p8 ^9 C4 Q' [( ^1 {, d$ Q
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topicStr = SysAllocString((WCHAR *) L"system"); / L& P$ V/ H& m( k# M( v VariantInit(&requestVariant[1]); ; m4 h6 T/ C& J" K/ n1 B8 L
requestVariant[1].vt = VT_BSTR; 1 x6 [- w$ n, g3 v d+ f$ U. \ requestVariant[1].bstrVal = topicStr;* L3 g; `0 {9 G9 n2 s8 Y( B4 t
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// Set the DISPPARAMS structure that holds the variant.$ r/ K6 D: ?3 K1 B2 W p% u. C- y