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:( {& c; q! s8 O2 ~6 P, }1 v
Name = (WCHAR *) L"Poke";, `% m! u6 M% S4 z: i5 D: v9 W
- t# h3 r" c7 X1 U/ n hr = m_pDisp->GetIDsOfNames ( # g2 t! J1 v" S& ]" y IID_NULL, // reserved+ g: B! b, \9 {" W, ]+ }. V
&Name, // Array of names to get IDs for 2 k! p6 e3 N6 p5 I4 E' l) b 1, // # of names in the array % Y; U8 @9 x. C# A2 g; K V, H' \ LOCALE_SYSTEM_DEFAULT, // System locale ( q4 y) A/ c1 w4 K7 }! ^7 K &pokeID); // Array of IDs to fill on output 6 s" J# @# F: C# ?( w! G! k% O / x* @. i+ ^2 ~+ ?% d if (hr)7 `/ Z" S+ ?0 x$ C
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MessageBox ("Get Poke Unsuccessful");* z# X$ A$ T8 \! D' J- [ ~. Q
return; / ^# x' j' c2 I }1 }( {+ @! @8 G; y; F" n% {3 g2 x
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/**************************传递数据给extend**************************************/ ) z6 w" ]. H& D: l u8 F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); d8 s+ F* w$ Z
m7 _1 M+ s) `) g8 I valueStr = SysAllocString((WCHAR *) L"1232"); 3 U! e' t6 ~+ h- f VariantInit(&pokeVariant[0]); # v5 c" G/ L( C) G9 g pokeVariant[0].vt = VT_BSTR; z" q6 H6 l7 I! w
pokeVariant[0].bstrVal = valueStr; / M+ O7 r# h; z9 A. B) Z1 Z" n, t- p; y0 {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) ~; i' D& f# q$ l9 q# Z
VariantInit(&pokeVariant[1]); " M* r7 |9 Q4 L- b5 a+ A! S
pokeVariant[1].vt = VT_BSTR;. @& @& |- C1 O) G
pokeVariant[1].bstrVal = itemStr;" _' z3 q; d) Q0 k
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topicStr = SysAllocString((WCHAR *) L"system"); 7 O' @/ ^/ I) | VariantInit(&pokeVariant[2]); " J# d: Q- ], ]7 {& H pokeVariant[2].vt = VT_BSTR; 9 y5 W2 H4 ^# [' H6 P$ g3 \ pokeVariant[2].bstrVal = topicStr;# G9 |; M' @; V# `+ n" |5 [
6 f/ X, q A; _' |6 C// Set the DISPPARAMS structure that holds the variant. + M8 X% e3 h# v 2 J" F, N# j0 N dp.rgvarg = pokeVariant; / x" S: r. w; S: ? dp.cArgs = 3;- b$ J5 C+ C# M/ [
dp.rgdispidNamedArgs = NULL;4 `: c/ B1 T) c; _6 I* I% W: _
dp.cNamedArgs = 0;% x K( f. o) d' W4 {5 D5 g; @
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// Call IDispatch::Invoke() 4 c( P3 K- O1 Q6 ]1 R1 I d! P5 g) H3 S" C; f' E" Q- Q0 H* u% m
hr = m_pDisp->Invoke( " n6 V- v$ [7 @2 ^3 o( K pokeID,5 x1 I1 W1 \) {+ l4 `% ]
IID_NULL, " w$ _1 U2 \% |7 { LOCALE_SYSTEM_DEFAULT, / ^ J) t4 z m DISPATCH_METHOD, 8 v2 p, P h0 ]1 G- z &dp,& {# c- B5 y: E
NULL, Q& z+ t2 N. ~; t8 [5 I6 L5 t &ei, : m3 N# s# W# A* n- V' h &uiErr); * K& H7 @* t. t# T% v* b Q 4 i. e5 t d* D- T9 U SysFreeString(topicStr); ; F+ {3 Z6 v; `2 F. `# p SysFreeString(itemStr);+ _" X" C/ G# e: x6 Y
SysFreeString(valueStr); - ^" }! @+ }# L" I6 j1 A# N- ?6 v) y. t; C
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???! m) I" _" B4 t# l: I
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????, @, x- I3 ~+ p
1 s; Z& P/ [+ z4 [6 F' E7 K - U2 [$ |3 t" \ u7 l6 N2.这是request的程序 " ~2 x7 B8 @& _- A+ g// Request a value from Extend+ I5 w1 B4 o3 U% X
// + M0 _" \! S2 y' y* T// Initialize the variant that will hold the BSTR. Set the variant's / m/ H& m: t" N// type flag to indicate the fact that this variant holds a BSTR. Place the 2 Z: o' Z4 W9 C* k& |7 O// BSTR into the variant structure. ! y! W3 X3 u W! u * K+ V- j/ {1 N, S [ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& R, ]' S: E: m; a' E4 W
; t- ^) u+ o& O& y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 r* G; |+ L1 g& q5 d9 Q
VariantInit(&requestVariant[0]); 0 u* M9 V: a- ~/ s6 F9 S0 \- ?7 F requestVariant[0].vt = VT_BSTR;; f+ T) X4 \9 u" ]7 {" l. E- c! M
requestVariant[0].bstrVal = itemStr;: k5 j1 U% r% K/ f. V3 [% F6 r5 j2 s
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topicStr = SysAllocString((WCHAR *) L"system"); 5 U' j. j5 ^% d) ]- c# z VariantInit(&requestVariant[1]); . o0 g& h7 P! h6 v2 V6 k& ?/ v9 ] requestVariant[1].vt = VT_BSTR; " d2 @8 u0 @ H8 x. \ requestVariant[1].bstrVal = topicStr; 4 V0 l/ ~+ A4 ?! d- y: X3 S {( r0 }8 r( L
// Set the DISPPARAMS structure that holds the variant. 1 ~7 W& J- Q1 n( V# A! b+ P; h }
dp2.rgvarg = requestVariant;! L- g- t6 o( Q4 M9 k* z& }# u5 ~
dp2.cArgs = 2; ) X5 f# R# ~ w0 r$ [2 t2 ` dp2.rgdispidNamedArgs = NULL;+ e4 u$ |, j2 c; s) d
dp2.cNamedArgs = 0;6 p/ a" F' p5 A% J. ~) L5 {) @; ]( I
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var.vt = VT_EMPTY; V7 `) ~9 i9 W8 }8 J9 Z* [4 R& H5 Q8 U
// Call IDispatch::Invoke()$ F! c0 g4 N2 B0 b! J% Q+ x& G! ]
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hr = m_pDisp->Invoke( . H' N8 T! |: J: B' j! x! Q requestID,7 x6 i) a/ h0 Q/ ?. T; P
IID_NULL, " l- C- q* b) E. J LOCALE_SYSTEM_DEFAULT,! \! C9 V/ i# K
DISPATCH_METHOD,8 n4 a, C+ S7 P+ U4 t8 Y# i
&dp2,# \' d1 h1 ]2 ]% {
&var,# @1 _/ n% P+ O2 m7 {( Z. U
&ei,; x- q: o3 }9 O+ @* w
&uiErr); ' Z( R# D+ D+ J/ J8 ^! g, K9 f2 a$ @$ v- {8 O. {
SysFreeString(topicStr); 3 z. J; J9 I# Q SysFreeString(itemStr);) i' N0 g2 ]( ^# j
请问该程序是获得extend里面的哪个值? 7 Q( r( v' W* G: j3 A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????