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 f2 a- [/ U- t# i( `1 a, T
Name = (WCHAR *) L"Poke";" N' ]4 y# D( Z% i4 f
& \. m( G9 Q9 D% v8 X4 `; @ hr = m_pDisp->GetIDsOfNames (5 L* ~5 u1 a0 J0 ^) V
IID_NULL, // reserved - N7 F8 c* k3 R/ B& v6 D* C &Name, // Array of names to get IDs for 4 |4 ]& A) ?4 O1 g! f! ~! L 1, // # of names in the array + M0 { t1 m. W. ~/ E, \1 |/ M8 Q& y LOCALE_SYSTEM_DEFAULT, // System locale) n. S8 B! d G) d
&pokeID); // Array of IDs to fill on output ' E8 P5 r7 s8 b. |" e ( a2 P5 a7 _- G2 Y ~" r2 E if (hr)- ?2 O# O% L9 C. M" L3 I+ n
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MessageBox ("Get Poke Unsuccessful");; w6 s; v( @& r3 v
return;2 u F# `: E4 G0 b/ T5 E
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/**************************传递数据给extend**************************************/ $ }0 [' ?# f3 z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 W8 T8 G5 P# { t' A* C0 f
4 [: \ ~. b! @) f, A% c- j# s valueStr = SysAllocString((WCHAR *) L"1232"); ( i4 |: `1 g% X- K3 q9 w VariantInit(&pokeVariant[0]); , t, X7 a* t& z) [( r# G" N
pokeVariant[0].vt = VT_BSTR; 3 I- F. T$ U" ?: I1 P pokeVariant[0].bstrVal = valueStr;" f+ G+ P( q! n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, r6 S$ N) T6 A! l! F" f5 Q& p
VariantInit(&pokeVariant[1]); % L4 x( j( B7 k
pokeVariant[1].vt = VT_BSTR; 7 |' b/ R# i d; d# b6 k, I pokeVariant[1].bstrVal = itemStr;. E! C- x* b1 d% _: ^& U
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topicStr = SysAllocString((WCHAR *) L"system");$ a; J# D" R* R5 \8 H
VariantInit(&pokeVariant[2]); $ S- _9 }) s+ _) y- F- c: v! J V pokeVariant[2].vt = VT_BSTR;: t8 l) z- U' I5 p' D
pokeVariant[2].bstrVal = topicStr;* Q# o' M4 k& z" L0 {8 I" |5 P& }
1 a% \, x5 K# q% |6 v// Set the DISPPARAMS structure that holds the variant.! L$ o' r8 ^0 k
- x# S4 N' D1 X7 I+ G+ y/ L5 A0 T7 t dp.rgvarg = pokeVariant;: N: G% P3 [/ R+ ]' t9 i
dp.cArgs = 3;+ k. j% ^0 [6 j: N
dp.rgdispidNamedArgs = NULL; 5 ^7 J4 P5 X y( L8 B' ?7 ~ dp.cNamedArgs = 0; ! _) Z+ Y2 e% \' S% {4 N% j% G/ q( L" @6 j$ |
// Call IDispatch::Invoke()% `7 [* V! ]1 Z) U1 S7 D
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hr = m_pDisp->Invoke( # y; @) j, W7 u6 k8 e pokeID,: K, z9 z- H+ R
IID_NULL, ' U/ C; H5 A, B8 x LOCALE_SYSTEM_DEFAULT, & ] ]( m* W8 Z0 m DISPATCH_METHOD, / [# L# w+ X- T' N0 g$ B/ ~8 @ &dp, # M. e D( v" Y- v/ j& J1 l NULL, @$ E; _) b$ [ &ei, ( |7 A |. j' P2 Z9 A &uiErr); ' o% t/ p _# l0 v. t: G& Y & o0 c) F% v6 V C SysFreeString(topicStr); $ M$ l9 H/ a3 S- `5 ?( \4 h SysFreeString(itemStr); 7 }/ r& L3 O% x SysFreeString(valueStr);$ g) o5 y3 W! l
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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???. o1 s/ f$ I6 f* n9 ]4 S
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????/ l( o% d" @* {3 O5 W
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! \( Q& `5 a. M; t6 ~+ V( v5 X2.这是request的程序# [0 ?1 Q6 O N; R7 w
// Request a value from Extend * h% x I( m3 E- z//1 p: I( Q* {; J. T
// Initialize the variant that will hold the BSTR. Set the variant's + V$ _$ R+ R9 v4 c7 O; P/ Q// type flag to indicate the fact that this variant holds a BSTR. Place the7 E: i% E4 L1 J
// BSTR into the variant structure.& V' G& l; T: T& H! E% s
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 i! m1 \& u, t9 R. t6 @ % e" k8 M/ f! g: r- g3 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' T- s2 F3 O! p# ] VariantInit(&requestVariant[0]); 2 W! L, S4 ?- e+ J: L/ [
requestVariant[0].vt = VT_BSTR; 7 Z. }- o& A- D) M0 N7 i; ]; U requestVariant[0].bstrVal = itemStr; 0 l" n) y4 W7 d% H& t, @ x5 G 8 t; Z4 ]8 N- d$ w: x topicStr = SysAllocString((WCHAR *) L"system");! k0 k+ j$ `* f1 M( o( R
VariantInit(&requestVariant[1]); % @1 Z6 s2 b+ C$ U7 D z
requestVariant[1].vt = VT_BSTR;9 \1 J4 ^% v3 |* {( t( c& O
requestVariant[1].bstrVal = topicStr; % B1 A# y2 ?7 X ! o; d; Z) o, R0 x7 } k// Set the DISPPARAMS structure that holds the variant.0 Z0 L6 g) ]' K' j! w. _( a
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dp2.rgvarg = requestVariant;. E) y. _+ H# O4 _6 E& K' L) {
dp2.cArgs = 2; ! y: C2 b0 l& H dp2.rgdispidNamedArgs = NULL;9 L) M9 v, U( }, a
dp2.cNamedArgs = 0; ( e: W* u1 ^6 g" D( `0 @ * D; q( o+ p& j) j, K var.vt = VT_EMPTY; # ?; C$ m. y) j! ]' W) }5 Y% D: L5 f3 S l$ q# H
// Call IDispatch::Invoke()& Q" q$ N2 h# U' b
8 G/ n0 l3 [3 Y+ s2 M hr = m_pDisp->Invoke(& |" Y9 u. t1 w
requestID,+ ?9 u" C2 V3 t+ \
IID_NULL,; g9 J. ~+ l5 n: H. E8 K
LOCALE_SYSTEM_DEFAULT,/ S0 a& N) l( F
DISPATCH_METHOD, & v- D0 U% N4 V p# f+ [- r7 U3 } &dp2, 3 n: U+ y6 `- K k& g &var, / t4 r! ]0 J1 [, l7 X &ei, X4 r$ G( J* }3 A! u" j &uiErr);9 d& e1 \* N6 \/ b A* J$ K
- F3 g" [; E. I a* g0 | SysFreeString(topicStr); 1 a2 L/ S8 q( d SysFreeString(itemStr); 4 G3 n+ C2 c7 _2 `7 L3 v. ]" ~ K8 ~请问该程序是获得extend里面的哪个值?5 n3 [ p# {5 x- q, S
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????