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: - }( E4 K" c: X2 l- vName = (WCHAR *) L"Poke"; * j, O. `* J* y. m8 u 5 G/ c% ?. k: ]1 N" D, x( W
hr = m_pDisp->GetIDsOfNames ( . P2 |( |* t$ P/ `- k5 @+ j% [ IID_NULL, // reserved 5 A, Y/ m) a8 ^2 J# z6 D" v4 r &Name, // Array of names to get IDs for, T6 U: L' ~7 c6 z% `
1, // # of names in the array 4 N3 v: _2 Q) S" R5 v0 X LOCALE_SYSTEM_DEFAULT, // System locale# M& r @7 s+ w A$ p i
&pokeID); // Array of IDs to fill on output ' O4 H1 Y8 ?% Q2 z, g. S- u9 F ( H' @3 d% _ G0 A
if (hr)7 O2 `( Y8 @* j1 m2 b1 y% a _
{ & L- j$ R9 @7 D8 s2 z2 V3 Y: T MessageBox ("Get Poke Unsuccessful");( e l4 L& ?- W& X% N5 j0 b: n9 Z
return;! v' g& S: K7 c- ~$ M: b
} , v+ Q; ]1 f$ M3 @/ |) R" t- A2 u# J3 G; k$ W4 c2 y3 S5 G: @
/**************************传递数据给extend**************************************/ - p1 G% Q# P1 H% L* m6 n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . t( ~% v) Z2 ^4 e+ n$ ?+ J+ }, K# | : V, N7 I; F- ~" r- v" m
valueStr = SysAllocString((WCHAR *) L"1232");; l2 v+ j5 |6 `2 _' w
VariantInit(&pokeVariant[0]); 3 N1 m# e/ O$ b8 ^' U" ]
pokeVariant[0].vt = VT_BSTR;4 @7 t5 Y% E+ I* |% X9 n6 H
pokeVariant[0].bstrVal = valueStr; # j# J) m7 H3 L+ ^; ?5 m - G/ R, O( L2 f+ p" u" d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " w I, ^8 x2 Z/ }7 C$ H VariantInit(&pokeVariant[1]); 9 o7 @4 V) |0 \ P+ F0 t# x pokeVariant[1].vt = VT_BSTR; ; j( G1 @8 m8 \/ d pokeVariant[1].bstrVal = itemStr;: Z. @, l3 `( B- r; t
# ^" v1 b( l- S" f/ X) T
topicStr = SysAllocString((WCHAR *) L"system");+ t `! `# u1 S: j8 E- r. J2 V# E
VariantInit(&pokeVariant[2]); - m% `4 k3 J7 P R! b$ w
pokeVariant[2].vt = VT_BSTR; 9 _9 M9 o" Q8 y b1 ^ pokeVariant[2].bstrVal = topicStr;. `6 E* O5 S( V1 G2 j6 W2 R
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// Set the DISPPARAMS structure that holds the variant.6 a' ^ A3 d" I0 H6 i; e& ~1 u8 [
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dp.rgvarg = pokeVariant;. W. T0 y! q/ N" M6 \! a
dp.cArgs = 3; $ E/ t$ v" F) ^: [8 N/ N% ?- _ dp.rgdispidNamedArgs = NULL;" g) |& r U. `* K
dp.cNamedArgs = 0;7 L7 E7 G2 K: Z; r3 q
7 D @1 H l0 B! f
// Call IDispatch::Invoke(): \9 b5 U4 Q9 A; H4 M! c( Y2 U; |
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hr = m_pDisp->Invoke(, ?. {1 B9 a. l$ B* {
pokeID, * A8 I0 B& R% X( e2 n; E+ z IID_NULL,6 ^/ n7 B; Q3 q, t' d# l0 D
LOCALE_SYSTEM_DEFAULT,1 G5 W" t6 l1 A7 i. b) @
DISPATCH_METHOD, 3 H) I- K# u* B3 Y4 \ &dp, 9 P4 @) E3 F: | NULL,. y0 Y0 F$ f: W9 U! {7 _0 _7 Q' p
&ei,2 ]3 k; s5 N& I9 q0 i: l9 s
&uiErr);4 V A) w* ^, @$ C7 l# O9 A$ N8 t
' M, {, ?9 O! [; c SysFreeString(topicStr); V3 U! Q' F$ i* r' @
SysFreeString(itemStr);. j, q2 r. f3 O, D
SysFreeString(valueStr); & F, W2 ^$ b. V 1 i) p9 Z, V4 K6 o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???& ]0 f4 {# y1 s4 o0 ?
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???? ' t) r/ Q0 O" I' W : e9 K6 y l" \0 \4 ]( z O" X 7 @+ D/ l2 ^, @2.这是request的程序2 J# Z$ B: B. f4 D" l4 D
// Request a value from Extend ( N: z( r% t0 z& o) E, m" [//( C7 s0 c+ J3 w$ z+ R: Z
// Initialize the variant that will hold the BSTR. Set the variant's6 g7 |0 e' `% X2 Z; d
// type flag to indicate the fact that this variant holds a BSTR. Place the 4 ^5 z4 _3 e, {7 s// BSTR into the variant structure.( Y9 s% ?2 p2 p/ y) J
* Z& n3 x! Z+ I requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 ]' t$ ~ |4 M) E9 R" P) t/ ^1 |) t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 q0 \) Y- v. k! n8 b% m) G6 n VariantInit(&requestVariant[0]); 0 ?3 P" M% }# k8 Q
requestVariant[0].vt = VT_BSTR; : A$ Q% G5 |& W+ g5 S: q% G P requestVariant[0].bstrVal = itemStr;+ s8 @- i, m$ n, B' R. s5 |
! w" Q5 \* j3 A- {: D: k. F topicStr = SysAllocString((WCHAR *) L"system"); . J- }5 T. E' ~4 f+ T VariantInit(&requestVariant[1]); 7 \ n: F3 d$ c6 U0 q2 ] requestVariant[1].vt = VT_BSTR; 3 R E( i' R. q2 R7 s requestVariant[1].bstrVal = topicStr; G: o- D+ b) H2 P5 l& ~ x
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// Set the DISPPARAMS structure that holds the variant., T% p9 {* N# c6 n7 s( A; e1 c' K
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dp2.rgvarg = requestVariant; # J9 D4 [8 h+ x* @1 I4 O/ r dp2.cArgs = 2; % ]0 o( e' H3 F4 X2 | dp2.rgdispidNamedArgs = NULL; 7 G, ?2 d8 d# B% i' s1 v dp2.cNamedArgs = 0;; R! A" O- p2 D: I) c* {$ J0 D$ {
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var.vt = VT_EMPTY;& h# [3 o. g0 e0 H3 |' H* ], w
l6 w4 Q2 c$ c# S2 r$ @! o! K8 @9 U// Call IDispatch::Invoke()( i8 T- U$ Y1 l' D
* x! c- t- R# O. O0 j {: U hr = m_pDisp->Invoke(3 r/ V# _& P2 h# g4 T. B: l
requestID,) b3 \8 H% r. i5 R9 k
IID_NULL," l( q" P5 W \0 F. j' N- |) r2 t
LOCALE_SYSTEM_DEFAULT, K0 u1 |+ h Y% c DISPATCH_METHOD,7 }# ~1 {0 ]; W4 W$ I2 U
&dp2,8 @3 t; N( J2 ^0 {
&var,2 u' u$ a3 R* A" O
&ei, ! b0 ?1 _7 j" t8 [: T [/ |2 M &uiErr); ) @7 x2 I1 t# a9 h6 r5 c& Y # c7 I* i$ l- x2 X% b! L SysFreeString(topicStr);% ]& Y, F, ?& y( _% R8 D2 \
SysFreeString(itemStr); {( w5 L+ @# O2 S" d! n
请问该程序是获得extend里面的哪个值? % c/ D0 O8 L. `( M7 U9 `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????