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:9 k7 j) ^* v ^$ y: X7 q ~# T3 x
Name = (WCHAR *) L"Poke"; ! r- p& n' l% |5 C5 V # d; q/ E/ v0 f% T
hr = m_pDisp->GetIDsOfNames ( 7 [. E( v: C- K& n IID_NULL, // reserved ! M; U, L9 E+ Q! _- s% o- {& F6 t &Name, // Array of names to get IDs for ) F% h# Y/ e3 O- w3 H 1, // # of names in the array & Z+ o r( }8 u# D2 e6 H9 R' ~ LOCALE_SYSTEM_DEFAULT, // System locale 2 S2 o3 G+ ^& x$ `4 }5 k% _3 A &pokeID); // Array of IDs to fill on output' ^/ {- R7 o7 A* m' f9 Z, N
0 I9 ~2 f3 O8 r. o. ]9 @ if (hr). k* i* M& O! _) g! \' G
{" {0 g: Y8 T1 I* h
MessageBox ("Get Poke Unsuccessful"); - V9 F4 `3 p; \1 B- [, m6 X+ k return; 5 M* R3 J* R0 L. a/ Y } 3 Z1 s! O- z# B/ l; u9 t# y1 s [6 F) P; l/ E3 J) }/ C& u4 v8 v/**************************传递数据给extend**************************************/ 5 F! F/ E# W x+ ?! f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* Z% w# ^/ |* ^# m
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valueStr = SysAllocString((WCHAR *) L"1232"); " D2 Z: `0 f/ X9 M# V& o1 w VariantInit(&pokeVariant[0]); 1 X* o$ R8 X! h) H7 S
pokeVariant[0].vt = VT_BSTR; . i o v# r1 c. I pokeVariant[0].bstrVal = valueStr; ( y6 V/ B5 i5 q5 q, l5 V" B 8 r: |. u6 P; u5 \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 Q# P7 M4 R; s# \5 K! j) u1 N
VariantInit(&pokeVariant[1]); * M& y- D# H6 C pokeVariant[1].vt = VT_BSTR; 0 k: X: \' U3 v+ e9 K pokeVariant[1].bstrVal = itemStr; . ~1 x# F9 w4 @- X4 }4 q7 u7 [( |3 L& W! M+ X- x" ^; D, B. L1 F: h2 ?
topicStr = SysAllocString((WCHAR *) L"system");3 [, w2 d y1 H+ l, o0 m
VariantInit(&pokeVariant[2]); # p5 R- x# H7 ?* Z* ?6 z* Z pokeVariant[2].vt = VT_BSTR;; v; @$ f+ w: `7 c% U% C/ E
pokeVariant[2].bstrVal = topicStr;' [8 M7 h% E0 M2 l6 o0 S
6 U( z' x l( O// Set the DISPPARAMS structure that holds the variant. ) x( s o$ A; y. k/ j- o k% I% p- r8 r$ ]
dp.rgvarg = pokeVariant;9 p) O% W; E+ _: J& Q( X
dp.cArgs = 3;' A2 l9 r B( Z8 _1 b+ n9 s
dp.rgdispidNamedArgs = NULL;+ |9 b: P F9 _( O' I8 j* E
dp.cNamedArgs = 0;% c# {+ q8 X+ r- ?: q
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// Call IDispatch::Invoke() - |1 B6 ~* r6 H7 i' C) k & a) {* ^' S i: a2 Y5 m& B hr = m_pDisp->Invoke(. ?) }# x2 M4 ?
pokeID,2 F- l: F$ P& [# H/ U0 J
IID_NULL,9 Y" \8 j6 W7 n) J
LOCALE_SYSTEM_DEFAULT,4 l& b/ `, t9 q# }' Z' Y
DISPATCH_METHOD,4 ]; Q/ F" l a5 w: u+ ]
&dp,# ]% U8 Z+ _! `" D& |3 d/ F0 p2 p
NULL, ! S/ l/ k, l' h &ei,& _. v0 D$ N7 }7 W4 x( C8 N0 t
&uiErr);8 N; L8 A) K' s* R. {
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SysFreeString(topicStr); 5 z/ }" ^$ @+ @ J9 ]6 I# j$ j1 G SysFreeString(itemStr);) |* r/ K2 Y1 q$ W" Z& h2 ~0 P
SysFreeString(valueStr); - q, u# ~2 L3 N* Z3 H & A( a- n- S2 F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???% [8 P" g4 D6 J, e+ w
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????& k' u: m9 y# }
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; `5 |5 B3 q$ Q0 m# w- o2.这是request的程序 5 ]0 x, O! n! `// Request a value from Extend- S0 x$ C' |$ M9 [, `9 H) @8 n- L. U2 ^
//6 K+ V4 x- ]4 q0 b/ S& X
// Initialize the variant that will hold the BSTR. Set the variant's 5 P* t* O; U: ~7 A5 _) H; }// type flag to indicate the fact that this variant holds a BSTR. Place the: T3 i7 r4 t9 u4 p/ A( D
// BSTR into the variant structure. 6 p+ D4 N4 Q* R1 G2 b' A% a" ~* ^, k6 x4 K5 w, o) h
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 w& i+ P% y; t ) i( U$ y7 I* ?( ~8 O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 s) T4 s* M1 Q( R+ e
VariantInit(&requestVariant[0]); % l( _5 {; c- X8 k
requestVariant[0].vt = VT_BSTR; G( C4 M$ f+ d# u requestVariant[0].bstrVal = itemStr; " Z+ u7 `" Y* ?* q. ]7 d0 E1 G8 O; s/ i8 m. H
topicStr = SysAllocString((WCHAR *) L"system"); 3 t& P4 k3 e* s# c VariantInit(&requestVariant[1]); 8 S" }, x4 c4 b. z ~- M2 e requestVariant[1].vt = VT_BSTR; " x- z% ~& h! N: J' ~6 n requestVariant[1].bstrVal = topicStr; ' x7 o; x, d' b* ^( D% F, K* |1 M0 k) ^2 p) G& y7 y/ d
// Set the DISPPARAMS structure that holds the variant.; U# ?4 p1 K+ _* s
/ e; K P2 C2 `9 E+ r( l, k' a1 ~ dp2.rgvarg = requestVariant; . T3 V v4 [% m& D; H dp2.cArgs = 2;3 g! Q1 L3 N' K F$ T
dp2.rgdispidNamedArgs = NULL; 8 J5 E0 _: K! Y* O# O; J7 ~: i dp2.cNamedArgs = 0;- p ^- s0 w& m9 G