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:' {) P" ~ L& F# [* M ?2 J; r# m
Name = (WCHAR *) L"Poke";% ^1 |2 o6 K7 x
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hr = m_pDisp->GetIDsOfNames ( ' h3 {- H3 h# U6 O" W6 P IID_NULL, // reserved! I% M$ Z; }* \% x: B; p
&Name, // Array of names to get IDs for " _6 M: u' h T7 B 1, // # of names in the array : a3 c+ K- L# _3 W9 \4 O8 G$ Q LOCALE_SYSTEM_DEFAULT, // System locale / `% w# d! ]1 d &pokeID); // Array of IDs to fill on output - w* M1 X8 b6 a) D9 v ; i* c% G4 s N1 s- B! N0 L
if (hr) ( u/ g! Z# e+ M, k5 Z { # T# l2 ^. b, g0 k- B0 d MessageBox ("Get Poke Unsuccessful"); 5 e- Z; ~6 _: K5 B I7 V return; 1 F' U* R+ _$ x } ! e S. e2 S( N# D, I# r) n9 q' M+ }* i- _/ F6 l
/**************************传递数据给extend**************************************/ - D( t; |; I/ z. I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& Y! d- \. ?2 y2 b. q% Z
" m' O. L" O7 b/ w1 R valueStr = SysAllocString((WCHAR *) L"1232");' s0 R2 B% R# L8 U& I8 Y
VariantInit(&pokeVariant[0]); & \4 Q9 [1 |4 K ?- U) Z pokeVariant[0].vt = VT_BSTR;) S1 J, K0 t6 W* h9 G
pokeVariant[0].bstrVal = valueStr;6 G& A0 f9 c( T; V* \
h* \5 k$ X- C7 o4 |3 e7 e0 g' e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : }% F' S2 E P- S. N- Z% g VariantInit(&pokeVariant[1]); ( G; [3 | J& C3 K' D pokeVariant[1].vt = VT_BSTR;7 p( l3 K8 J4 l
pokeVariant[1].bstrVal = itemStr; 8 R' \% {! s) y$ {9 `/ [/ r S; L4 ^ a
topicStr = SysAllocString((WCHAR *) L"system");: \3 o/ x8 b9 F7 X& x
VariantInit(&pokeVariant[2]); / |% m7 H/ ~$ G1 w" ^" R
pokeVariant[2].vt = VT_BSTR;! X7 z$ @! x% }# {* P5 L: s
pokeVariant[2].bstrVal = topicStr;9 b5 G/ w' U- ?) ^$ ~# m f/ h
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// Set the DISPPARAMS structure that holds the variant. : j z, l8 Z3 U! @+ ?" u* @ $ i5 e& [1 Z# G/ g% X8 v dp.rgvarg = pokeVariant; 0 L; n( p7 Y" `. g9 y* q# t dp.cArgs = 3;0 y' ]+ O h1 r* g
dp.rgdispidNamedArgs = NULL; 4 a% |: D" u: \" [5 |! A$ G/ Q* g dp.cNamedArgs = 0; ' ?( M. k* a* h7 Z9 r# G3 Z: _$ j5 M# e2 H( U' _
// Call IDispatch::Invoke() ' s$ l- x- o9 n5 C5 M* O4 [& ^ # {6 j# ]4 C# [- ^! s& R hr = m_pDisp->Invoke(4 D2 V4 \- t& H- e( m" s
pokeID,- w% @' _2 y/ ]+ q/ x
IID_NULL, : C* i4 d: m/ M: Q& ~4 n; z LOCALE_SYSTEM_DEFAULT, 5 a* j. E" D* P1 e DISPATCH_METHOD,* n! c @( I2 Z8 b6 x0 O
&dp, * E; k2 u$ a/ ~1 \7 z g& V5 H NULL,0 s5 ]: i3 t" a( r
&ei,7 Z1 K$ k, d, ^% b {2 N V1 ?" |
&uiErr);/ }7 N' M# b- o9 I
' l0 I7 ~: ]7 }4 z! _4 f SysFreeString(topicStr);% d* o' z. l: b' W4 r+ k, }
SysFreeString(itemStr); / D9 m& c( g8 l4 f$ u. o1 e/ ^; J SysFreeString(valueStr); 8 W7 V2 k2 }: A5 l- I. j6 J) J 8 d2 o) b, S) c& 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??? ' K) f" {& D0 J- [7 o6 E; s4 v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???? $ w+ H ]8 N2 Z0 l8 ~8 Z + r* l- W$ `3 v) k8 l" Q. g( Y1 `( p7 I; Y) [
2.这是request的程序+ x8 a& }+ f4 ~. d3 T
// Request a value from Extend" ^2 g- G( W" i l& H8 x& _) d
//9 J3 D& o% K6 I2 D* j& F! u1 W
// Initialize the variant that will hold the BSTR. Set the variant's + k3 C. Q5 ?8 e. n E9 E, n6 ]// type flag to indicate the fact that this variant holds a BSTR. Place the ; ]4 I: w) d, w1 @0 z7 j// BSTR into the variant structure.. N- L' r! f! [' e3 `9 B. T
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- k2 E* Z$ I; n
+ f; ^% L3 {7 E* u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! N& f8 G5 z2 U: p* w VariantInit(&requestVariant[0]); $ m- {5 h8 [% R. ~ requestVariant[0].vt = VT_BSTR;/ `1 d% w0 v; q6 K9 `
requestVariant[0].bstrVal = itemStr;% \5 f, d8 h7 l! ~3 ^6 `
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topicStr = SysAllocString((WCHAR *) L"system");: H0 B2 l+ w' C4 K4 X6 `9 O2 }, V- ~6 O! Y
VariantInit(&requestVariant[1]); . n% s4 m, L. @ requestVariant[1].vt = VT_BSTR;& O) v. Q ?/ |' z
requestVariant[1].bstrVal = topicStr;3 m1 Q, ^- {7 q- V B
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// Set the DISPPARAMS structure that holds the variant.7 L: x6 h3 x% z% }* M
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dp2.rgvarg = requestVariant; 3 g! O3 l7 y) e' |6 o" V dp2.cArgs = 2;. e, W" q8 `* p5 B* B
dp2.rgdispidNamedArgs = NULL; 3 a# s, d8 n" J6 V6 J dp2.cNamedArgs = 0; - c9 I; O3 K1 d' `( S5 R) H0 _2 d. D9 {/ o/ K) t
var.vt = VT_EMPTY; # L% F# W& y( {9 X* l5 q2 l1 b8 s: B1 s& B; |5 U( @- ]( J0 L( ?
// Call IDispatch::Invoke() 7 J! G9 g s9 F# y. ? 3 U/ G7 P; i I6 D5 u, r9 H hr = m_pDisp->Invoke( 4 b8 e( |, T; g) t# @ requestID, / t8 O! ^, \# m6 D& `4 L IID_NULL, 9 n! k# a9 h& p! z8 m LOCALE_SYSTEM_DEFAULT, 8 |! g" b G1 t8 n0 T# M4 H- X# k DISPATCH_METHOD,$ I. W5 {7 ~, [5 n# t
&dp2,0 d4 }$ J, }3 `+ q# f1 }+ L( e
&var,2 r- l V+ O9 J* s/ o( w2 t
&ei,' |) S+ w+ T3 M) ?* [
&uiErr); & `+ N- M m( @* L4 b% l- B: B/ B
SysFreeString(topicStr);: L+ L' r9 O% ~# b/ S, d7 N) [
SysFreeString(itemStr); ) @4 c( W& U; s# _请问该程序是获得extend里面的哪个值? + _, G1 ~' }! R: z* K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????