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:" K3 m4 L/ F) z$ q$ v
Name = (WCHAR *) L"Poke";1 U/ y; p5 D' `+ b
' i7 g) U' `( s" o hr = m_pDisp->GetIDsOfNames (6 |" b: A$ z9 E% r; M
IID_NULL, // reserved + |9 B) k% W1 x$ m; B &Name, // Array of names to get IDs for8 V9 l8 J) k2 e! U, K3 F
1, // # of names in the array! P+ O. |4 K. x+ t, ?) Z% Z
LOCALE_SYSTEM_DEFAULT, // System locale6 p4 U9 A. e6 m, a( \' K
&pokeID); // Array of IDs to fill on output1 r+ E( e0 u! q8 z H5 s3 `- s
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if (hr) , L5 R' I% c4 ]$ b3 _ {6 U8 @) G9 m5 j, ?. j) [/ ]. A
MessageBox ("Get Poke Unsuccessful");3 S& T% C2 Y/ Y+ \
return; 0 O- Z- G( k, F$ J* o }5 f0 U; c/ C' v3 N( r) x5 A5 R
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/**************************传递数据给extend**************************************/ % Y: {/ P- b- p) R9 q [ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ ]7 Q( u1 I2 `
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valueStr = SysAllocString((WCHAR *) L"1232"); J4 S& E, h7 P$ d' |
VariantInit(&pokeVariant[0]); # V2 w4 H! k# [ \* Q5 i1 E
pokeVariant[0].vt = VT_BSTR; 2 s8 F( @, d( z9 r6 V pokeVariant[0].bstrVal = valueStr;% E* X+ n3 f; A9 Q
+ c6 N' T9 [, u u' e' n1 Z2 [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 b2 s( |4 K6 I
VariantInit(&pokeVariant[1]); * K( j) J8 W8 n9 Q6 ` pokeVariant[1].vt = VT_BSTR;/ [9 ^$ @ i( G! Y
pokeVariant[1].bstrVal = itemStr; * O; t" ]" D& e7 n# T% N# }: q R( C4 C2 r" K6 n
topicStr = SysAllocString((WCHAR *) L"system"); & f: Q$ }4 [; L# n/ h4 X VariantInit(&pokeVariant[2]); 5 r8 V0 {# e U v$ w9 {: @4 Z- F5 M! m& l pokeVariant[2].vt = VT_BSTR; ( c( q5 ^0 M0 D6 z) M" x pokeVariant[2].bstrVal = topicStr;* A& y5 b" Q# K8 L& P
+ F O7 r* u6 i- X5 A3 e0 H9 x// Set the DISPPARAMS structure that holds the variant., @0 l" r$ F7 c, \7 r o9 n7 u- c
* w2 _, K+ x- D# j2 z dp.rgvarg = pokeVariant; ( M! Y* u3 h& }5 S dp.cArgs = 3; / {* i' r n' C7 q" ?' g dp.rgdispidNamedArgs = NULL; 0 z1 {- n" `2 c" D1 M' T dp.cNamedArgs = 0; 6 ]* p4 U6 A; u+ _7 [/ J# B1 q( ]; r& Z5 |& c
// Call IDispatch::Invoke() 4 X/ Q) k1 T0 c1 }# i. {/ J: R l3 @; F+ U
hr = m_pDisp->Invoke(4 V0 P6 h. y6 X; M& Z2 @
pokeID,) c! c' W8 J: l7 `
IID_NULL,9 T# N0 X; M0 Q3 G& |6 T$ ~5 q
LOCALE_SYSTEM_DEFAULT, - G# ?1 ?. o8 ?* d DISPATCH_METHOD, 0 {( x6 c; V4 B9 |: ]" K6 ] &dp, V# U( x. w6 ^7 L' Y7 n NULL,* I1 M1 k! d! u! v# n0 {
&ei,6 o* }; k6 v9 c. K$ g; x3 d
&uiErr); & G5 J) F# E4 W- u4 c. I ; m% k. T( P9 e) ^# w6 m% T SysFreeString(topicStr);7 N- Z. L0 y! q/ l; i$ e: r
SysFreeString(itemStr); 4 U1 k5 C8 m+ c% B6 P& ~ SysFreeString(valueStr); ( u6 x7 T3 }1 \ + s9 x2 j7 @! j, B1 @# x }6 J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??? + a% f; W4 h- N! w. A: Y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???? : H% L9 b8 Y+ j: D+ m- K7 R; p, S6 M6 w, y% L
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2.这是request的程序; ~ Z7 I# H; M2 [9 R" l3 j# A
// Request a value from Extend 7 ]6 O3 f( I d Y! ?// 7 k; |2 W' R' c: f& h7 `// Initialize the variant that will hold the BSTR. Set the variant's2 I& C0 O- p6 O! @
// type flag to indicate the fact that this variant holds a BSTR. Place the [. j. n" i" J! @& A0 s// BSTR into the variant structure./ x* Z; w0 k) `5 }9 U; ~# m
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . J/ Q# f6 z0 { n2 X" w0 c % u9 Z" m) W0 j: b% E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ o s3 S8 n, h) |, ~
VariantInit(&requestVariant[0]); . h9 b* s! G: W) w! Y# ~, K' C M
requestVariant[0].vt = VT_BSTR; e$ ?( ^9 O9 h
requestVariant[0].bstrVal = itemStr;) E- _, w/ r; B% |* S' o2 V
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topicStr = SysAllocString((WCHAR *) L"system"); : g$ g8 y6 v7 [; Z$ h VariantInit(&requestVariant[1]); 2 d$ c' }7 j0 P8 b& m0 N& [
requestVariant[1].vt = VT_BSTR;) n- s1 |9 J# `& a B( v4 [
requestVariant[1].bstrVal = topicStr;! w' N! R Z3 Z( ~1 ~ Y. K
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// Set the DISPPARAMS structure that holds the variant. # Y! `( r( [; l* k2 l 7 t, N* C8 `6 u- F, h" d3 r* \ dp2.rgvarg = requestVariant; 8 u4 r. t$ g4 [' c" O dp2.cArgs = 2; & w" I8 |6 p' c# X- t# i9 z9 B" ? dp2.rgdispidNamedArgs = NULL;6 g! u( A* n, @' L0 N! X; q
dp2.cNamedArgs = 0;, ^( {0 k7 d4 Z! A$ h
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var.vt = VT_EMPTY;# ~& c* e! y4 |( `, r. e/ D
& D/ ?( S7 K Z( D- w' Y# ~% N// Call IDispatch::Invoke() ) C5 h; b3 I5 p! t2 c 4 h" o7 \6 q+ Z& d" e- i& l* E hr = m_pDisp->Invoke(7 U* P1 V! T0 M, u/ V7 @8 a) U
requestID,4 n" x/ |/ `3 b
IID_NULL,2 c6 X* f. [8 h2 H
LOCALE_SYSTEM_DEFAULT,! ^. Y' e3 W9 h. z, v4 a# U0 u
DISPATCH_METHOD,4 \9 x# s1 _9 q
&dp2,5 N- ]- z( z X5 l# e+ g0 v' W0 J
&var,* k. M- O4 V3 ]( z- A) F
&ei,$ A) c; x( ~0 f/ `# f% Z
&uiErr);9 N& k6 |2 Y, D6 o1 }- W0 |. B4 e
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SysFreeString(topicStr);/ _+ H! X# v( H* z
SysFreeString(itemStr);1 K, ]% x: K" X% o' A, c- H
请问该程序是获得extend里面的哪个值?' Y2 H0 U5 H' Y7 A: [, {; h
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????