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:3 ]$ }7 T5 S8 y
Name = (WCHAR *) L"Poke";7 G! H7 X7 S, {. W
7 j+ I& A5 A0 r2 @7 O) M hr = m_pDisp->GetIDsOfNames (' Z X: u+ g- w, V! d
IID_NULL, // reserved ' W- O {% W+ w& Z' Y &Name, // Array of names to get IDs for/ V- D# l! \3 z6 C. H3 C' B
1, // # of names in the array , o6 H! G- |, N6 j$ x' ` LOCALE_SYSTEM_DEFAULT, // System locale( s9 q' v: x( B4 z1 }1 A; L1 ~
&pokeID); // Array of IDs to fill on output5 w. S+ ^" g# n6 X: N, L" ^
, U; l: C4 w" P if (hr) ( n+ F- ~+ W c: ~. Z# [ { 1 z7 W9 i/ W# m1 g o! h MessageBox ("Get Poke Unsuccessful"); # R- c# q5 S4 d$ }+ T return; 9 |0 `) U% w0 @4 C1 w; H# F }: _# f6 D" ~4 p4 [! f9 o
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/**************************传递数据给extend**************************************/ 1 N+ m) r: h8 r, G3 ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! K5 w$ E d+ B+ W- a5 ?
8 p! y3 }+ h$ s valueStr = SysAllocString((WCHAR *) L"1232");& y& c3 V& M" s+ K- ?' M& `! U
VariantInit(&pokeVariant[0]); ' j8 s! _' V, H pokeVariant[0].vt = VT_BSTR; / \* l$ \: j# c' ]7 Z pokeVariant[0].bstrVal = valueStr;1 f& w/ O$ q' G1 \# q: k" Z
7 b- S0 i0 }, [8 C+ i2 _: { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / Z4 ?' }$ V% \' x0 g' a. ? VariantInit(&pokeVariant[1]); ) \6 O9 H$ Z. J! M7 J6 i4 A% W pokeVariant[1].vt = VT_BSTR;1 V8 [) j, f% r" F1 S, b# W
pokeVariant[1].bstrVal = itemStr;4 x3 }3 t4 e. Q) _" ]* X
! B h# B1 r6 }" r" V# ?! {$ F& [9 I topicStr = SysAllocString((WCHAR *) L"system"); 7 {3 {! I) v6 v( N6 e) Y, ^ VariantInit(&pokeVariant[2]); - o& p: L( T( k! Z
pokeVariant[2].vt = VT_BSTR;9 U3 d% M ]8 s& H" N$ m
pokeVariant[2].bstrVal = topicStr; 5 J8 z. }: U) B, o. z0 A* Q6 s* d. b& q, k/ C
// Set the DISPPARAMS structure that holds the variant. ! ~* {5 u+ v9 v; [6 ^+ c" g* \5 x/ b- j
dp.rgvarg = pokeVariant;/ k- B6 `- l. {; {+ o& M
dp.cArgs = 3; 8 y) V+ R1 H! F8 ^% L5 {# P$ s8 p1 z dp.rgdispidNamedArgs = NULL;( ^, _7 [, M5 x1 g* j& U
dp.cNamedArgs = 0; 2 m1 A* I2 Q2 |: J! q 8 Z; _* s/ n8 R0 g" e9 }// Call IDispatch::Invoke()& {! o5 i5 q( s P% W9 s
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hr = m_pDisp->Invoke( ' b! S7 I* n; f5 M pokeID, $ f! I7 c( i, @% O3 S IID_NULL,8 U( T- u1 A; L3 q. F. z1 T
LOCALE_SYSTEM_DEFAULT,7 e9 j8 |& {0 N8 T! d. Z
DISPATCH_METHOD, $ l1 h4 Q. o* p) k &dp, 0 r5 S- B/ q: e" m3 { NULL, 9 Z; Y- N" F' [/ Q; f3 M &ei, : M5 g1 Y) j) L- Z8 E- a' | &uiErr);4 X& J) R3 E4 S' B, U
2 K% M8 p& }9 @* ` SysFreeString(topicStr);; B/ c9 |% }* @1 }& O) G4 I; Q7 u
SysFreeString(itemStr); + J; f7 u I) m SysFreeString(valueStr);! ?! c4 h3 r6 r! z- w
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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???- \5 o3 U) M. l. e: N
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????' W8 B- q6 \! `% H
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2.这是request的程序- @% |% l* L$ ]& e" x0 X: _
// Request a value from Extend 4 W$ ^: Y$ i4 r* W5 v3 F! T0 V//8 O, x9 Z, d1 }% |+ y
// Initialize the variant that will hold the BSTR. Set the variant's 4 W U$ b3 e! [/ w// type flag to indicate the fact that this variant holds a BSTR. Place the , V/ z1 O5 w, M" v4 c% F4 f// BSTR into the variant structure. , ^) U* y* z m8 H6 R& Q6 `; A 9 \2 Z D2 X J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 p+ J8 [# F1 d8 |, |, _ `+ ` 2 T- G: k" {. E8 f6 x( T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% P. T9 b* z# C p) K
VariantInit(&requestVariant[0]); 8 y9 r* m9 O5 A1 V8 C# u% A) \
requestVariant[0].vt = VT_BSTR;0 ^7 g4 R( G6 J V, Y6 K. v7 L$ D
requestVariant[0].bstrVal = itemStr; # v0 J6 ?; Q1 t! J* |, B+ w2 R % u- p9 @9 K8 d+ j2 B topicStr = SysAllocString((WCHAR *) L"system"); A" m: |8 \) w: {: ^ G7 E VariantInit(&requestVariant[1]); 8 k, c! ^- n% j6 l1 C _. W8 ? requestVariant[1].vt = VT_BSTR; 4 [! W" h, L$ s" r* Y1 a requestVariant[1].bstrVal = topicStr; ) R, g# c" b$ T% M: S1 c/ s3 K9 o: v3 a0 ^
// Set the DISPPARAMS structure that holds the variant. & E& _# Q7 P. n7 A " K% G/ m) \7 @$ K2 U2 b dp2.rgvarg = requestVariant; ( U# z% w3 ]- ~. }- w dp2.cArgs = 2; ) C2 i: U' I, I6 A6 l, v$ {8 t dp2.rgdispidNamedArgs = NULL; 4 D; C/ V q$ A+ q$ N7 |8 g( r j dp2.cNamedArgs = 0;+ e2 V/ q7 ]( \. m g6 N2 k: y* S A
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var.vt = VT_EMPTY;' x4 l u$ p0 f {4 N
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// Call IDispatch::Invoke()2 y. [- X. `5 T% y' A- {! ]6 L
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hr = m_pDisp->Invoke( ! r; |' ]1 E4 Z) g requestID, + ~" S9 P3 @$ V+ y* } IID_NULL,+ {& h* A! {4 Y) F. r! R& G- r4 b
LOCALE_SYSTEM_DEFAULT, ! ~ }$ F+ ^1 G3 j/ \ DISPATCH_METHOD,7 q1 M, L, }+ i( w \ g5 D
&dp2,( s8 F4 i% A; ^( t& O; P
&var, & R, S7 L, [6 W9 N* @( H" ~' W% n &ei, $ O: Z0 p) j9 ]) q: G &uiErr); 4 k" M h! o$ G0 ~3 C1 G1 H 8 [. G8 r% P$ W% ^: v5 O, a8 _! n" J SysFreeString(topicStr); ! o/ f( ]1 D8 k1 a' A# F5 g SysFreeString(itemStr); + a' q6 O# v/ [请问该程序是获得extend里面的哪个值? ! _( _8 R1 O7 i& [; t/ B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????