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: ) ?& O6 g3 {. f" u6 ^( H8 IName = (WCHAR *) L"Poke"; 7 D0 c9 k; v0 M. U : _. D3 r/ \/ h& p- N8 V9 ?* q. q
hr = m_pDisp->GetIDsOfNames (2 F. t$ R9 I6 t( ]
IID_NULL, // reserved! v+ S; l0 y+ Y& e
&Name, // Array of names to get IDs for 4 }1 Y' N8 z! o. m( B3 n( A# y 1, // # of names in the array ! _; q; N! @ D+ n4 G2 l LOCALE_SYSTEM_DEFAULT, // System locale " k8 C+ G+ v, u3 }0 v/ } &pokeID); // Array of IDs to fill on output ; l; t1 n2 ?0 ]$ q1 I) q0 m & |4 n9 \: i$ f Y, p9 g: m# d if (hr) 2 q0 {% l. E; g: k }) v9 [ { 4 Y" p; g2 d: y) k5 X/ _! w/ U MessageBox ("Get Poke Unsuccessful");! t( v2 c, w/ O+ e* @% |
return;8 V6 u" H6 j5 f
} e; Z7 ]2 x2 l4 q: G1 ]+ A8 j& e" U 6 ]+ T/ b' _& L; Z# t/**************************传递数据给extend**************************************/8 _8 i" o) M8 P7 U
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 T. F) A& M% m+ C D 6 f+ h' ?% S* R$ q+ K. n
valueStr = SysAllocString((WCHAR *) L"1232"); ( G" e: y6 @) R1 u VariantInit(&pokeVariant[0]); " L4 } e1 E8 {
pokeVariant[0].vt = VT_BSTR; ) J. Q$ d; W" [ pokeVariant[0].bstrVal = valueStr; ]* |5 n, p+ s # A) T7 m( [7 y2 s* r# e, K- D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 H+ p* R0 V/ D( v: H1 _ VariantInit(&pokeVariant[1]); + D& p; y# u( g, f, q
pokeVariant[1].vt = VT_BSTR;- x7 o4 P% S9 u* v
pokeVariant[1].bstrVal = itemStr;' J2 q" l6 j" T I! m0 q( m; B8 Z
7 l) X+ x4 K' c' q% m1 A topicStr = SysAllocString((WCHAR *) L"system");1 x* ~+ Y2 \1 S) l0 S' H
VariantInit(&pokeVariant[2]); , G; X5 a$ y i
pokeVariant[2].vt = VT_BSTR;" c, e, x% Z( v3 ^/ L2 [' t
pokeVariant[2].bstrVal = topicStr;# z; c) ]! n: t& i' ~# v
9 X% d- L6 u' b F# x// Set the DISPPARAMS structure that holds the variant.+ E0 D ]( Q0 P( i3 ^3 P1 a
0 x% \8 V/ t! F( K" L/ _" U: e dp.rgvarg = pokeVariant;7 A9 S! o% G5 S5 Y$ B: g
dp.cArgs = 3; 8 y4 s/ e9 r b* Y/ W5 n5 v* }1 C dp.rgdispidNamedArgs = NULL; & i G4 x j" `& A: u7 V' x L dp.cNamedArgs = 0; & f$ _! t- t. C* F# m2 v/ {( a : [" }* {; B( U- B# }, `+ U// Call IDispatch::Invoke()% H2 g7 l- c5 a; g3 {
6 T5 J0 j4 V' S" Y1 ?2 a } hr = m_pDisp->Invoke(; T. D# ~9 R( A, m6 {$ a3 T
pokeID,) h. t+ v6 P/ D0 {
IID_NULL, $ e" k* }. W: f' ^$ T! t. g% |8 T% k LOCALE_SYSTEM_DEFAULT,$ R) G g: o s t$ b. b9 i; v
DISPATCH_METHOD,, S. }' @) I. _) V- w+ @
&dp,7 p# ?* S. W! S! k( I6 |
NULL, % i: E% W9 q9 A8 k &ei,& K5 s! d- o6 S. Q
&uiErr);# t [) j7 s1 G0 H% n
* s8 g2 w# W$ J4 B. b2 B! @9 e4 E& T
SysFreeString(topicStr);' [8 Q& b1 q1 X* J e/ F
SysFreeString(itemStr);8 C. g* _; l% d" _+ q" C# ^
SysFreeString(valueStr); 8 o) F' O# O, j* `0 h- w( u/ B5 Z0 N7 c3 r; L& q$ w- a6 `4 d
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??? 3 Q6 \1 B. i( @. u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???? % C# ^# ?8 m B. ^3 V4 B0 W K" u 2 a* A2 L; G9 Q ) H3 n) u1 g( x2.这是request的程序 ; |' m! Z- q7 I- S2 z1 f" B// Request a value from Extend$ b6 U; o3 f9 \5 T$ `9 R- |
// 4 v+ {% `- Q+ W( d2 E2 I5 H// Initialize the variant that will hold the BSTR. Set the variant's# b" h% h7 W0 n4 x6 J
// type flag to indicate the fact that this variant holds a BSTR. Place the & I! F. o M/ D6 q& N; p// BSTR into the variant structure. + s) P$ Q: U7 a! w6 t9 H & L0 {3 b# C* J! s% P5 M requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* W v( H& V' z) y& L
1 j# A! o6 ~" l$ C- B- {& a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) W% X8 s3 t7 T
VariantInit(&requestVariant[0]); ) x9 W' W0 h8 u# L5 U& K. n9 o y requestVariant[0].vt = VT_BSTR;$ n$ n- h2 n* B0 D% o6 G
requestVariant[0].bstrVal = itemStr;) h% X6 V6 a h0 z9 k% O$ p
0 e- x5 r& F$ T& A2 B
topicStr = SysAllocString((WCHAR *) L"system"); 0 ~/ O) V& f. }! E VariantInit(&requestVariant[1]); 9 S- x$ \" n2 z' X w: z, f
requestVariant[1].vt = VT_BSTR;: f8 p& k6 _8 z+ x* h! Z( `' U$ w( {
requestVariant[1].bstrVal = topicStr; ! z% N9 p1 M [- E + J2 v, p+ k* k% c% D s: e2 g// Set the DISPPARAMS structure that holds the variant. 3 j$ ^, ~9 x$ W, } \. [9 C& `" F, l8 Z/ Q2 J& w7 e
dp2.rgvarg = requestVariant;* Z' z9 o- u, n8 {' s/ U5 m
dp2.cArgs = 2; 9 N I" N% Z. ~! q* M! ? dp2.rgdispidNamedArgs = NULL; : J+ w" {/ n. x3 B* l dp2.cNamedArgs = 0; 7 Z5 U, V& f+ G/ _/ ?2 n6 D, O) z" S5 S9 q8 a
var.vt = VT_EMPTY;8 V# ]- z+ E! H' ]! E7 e
* z( ]& i3 o; w
// Call IDispatch::Invoke()& M3 c" |' @% }
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hr = m_pDisp->Invoke( 3 u9 W) O: s7 C& H7 m8 h' t requestID,- }4 H* d2 H4 ~
IID_NULL, 8 M1 X p7 M% {/ t0 K# B9 W LOCALE_SYSTEM_DEFAULT,0 |! p, ]* }4 z2 E% q; F/ g
DISPATCH_METHOD, & t- i5 f5 [" F+ X, p# P$ M2 v9 U+ l &dp2,$ \4 v4 ^( z1 a) {% }
&var, 8 Z3 D* g: b; Z3 r &ei,2 L/ F* Q& B1 P8 r: }& C1 r" e* @
&uiErr);' w" \# P1 a7 S7 H/ V# G; y$ c