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:- E- p) X- b8 m8 d$ [
Name = (WCHAR *) L"Poke"; 7 k5 r' L( W7 t + M. J& k2 G8 q2 p. _; U! L hr = m_pDisp->GetIDsOfNames (, x* w; r c/ m% }5 l
IID_NULL, // reserved 2 N+ B2 ^; v$ q7 a# i* J- l &Name, // Array of names to get IDs for 4 j( P+ r* S: |& Y4 n0 i 1, // # of names in the array + z* z% j5 y, p1 I, K- g/ j LOCALE_SYSTEM_DEFAULT, // System locale+ G! S7 _; K7 L
&pokeID); // Array of IDs to fill on output5 ^! v% E: I6 s) B+ [
. z$ k& f0 z" P4 d. G if (hr) 3 K1 Y$ f2 L, D: p { 6 K- s( h6 B9 d MessageBox ("Get Poke Unsuccessful"); 3 J6 j% i* s+ v/ f, Z# c1 Y return; ! i/ M3 S* V3 A3 C }7 E. \. ^- C0 X/ f5 _
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/**************************传递数据给extend**************************************/" o j- B# r8 X+ f( @* m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 u% W, o9 g' G U& x
% {/ E b8 S( x valueStr = SysAllocString((WCHAR *) L"1232"); ( O1 E1 }; g2 s4 i/ [ VariantInit(&pokeVariant[0]); 6 T! ]" p. j. R5 _) i3 U# m4 g: _ pokeVariant[0].vt = VT_BSTR;; ]8 l1 E( e1 E8 j1 A" D
pokeVariant[0].bstrVal = valueStr; : F; e N% o* k& Y; `- R1 X7 y1 ]. b, {$ s6 K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 M4 W" l8 n* @) P. u) z/ o! u$ l VariantInit(&pokeVariant[1]); 2 ?) ]4 [6 e+ @7 n. M( ~
pokeVariant[1].vt = VT_BSTR;+ t" x" U1 j% q$ F9 w
pokeVariant[1].bstrVal = itemStr;/ n1 \" l7 p' F
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topicStr = SysAllocString((WCHAR *) L"system"); : Q1 v, c1 ]( n" W, ?! u VariantInit(&pokeVariant[2]); 8 G# a R$ B" V# `. F5 q pokeVariant[2].vt = VT_BSTR; u5 u" k$ p# H5 j: o/ O. {7 N) C pokeVariant[2].bstrVal = topicStr; ^6 ~+ E5 ]& f2 l " \: t( Z' g6 D$ H8 q/ Z0 Y// Set the DISPPARAMS structure that holds the variant. 2 t6 ?& M! } w, ?5 F1 K, ? r$ R ; b) S% F" ~" U6 a& t dp.rgvarg = pokeVariant;# C/ g( [2 [3 J% b( O, x, ^
dp.cArgs = 3;- g7 O& k& J8 N7 L
dp.rgdispidNamedArgs = NULL;5 r3 X( [ T7 Z& a! Y
dp.cNamedArgs = 0; . a4 G7 {" B U; C# n1 [: v8 a/ I. J1 r; o' U4 V# F( a
// Call IDispatch::Invoke() ) c* F& q3 z& ~; w! U9 k. b" \$ J- I/ A& A) `& f e% X
hr = m_pDisp->Invoke(- d3 F! X( C1 k. h! P" Y
pokeID,4 c% ?, m9 o* a# A2 q5 R( z
IID_NULL, ) k& Z. N6 }4 C LOCALE_SYSTEM_DEFAULT, 0 ^7 N/ E3 Z! o+ x3 C DISPATCH_METHOD,8 ?' g. J: S8 {/ y7 r) X9 M) i! e
&dp, 3 q" `* I# g, i$ P: m NULL, " @- {1 s- T. p0 m% Z0 [, H &ei, ( x& n9 q/ y! Q: K; q" [! y; r &uiErr);7 q: b- O4 |' }* T
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SysFreeString(topicStr);' d: `: Z0 R% ]9 j( R R5 Q) z/ m: d5 ^8 l
SysFreeString(itemStr); 8 e* j& y" ~# z3 t SysFreeString(valueStr);9 J; b3 J' ~+ J a# g4 s# s+ ?
9 P, A: e; H+ z. i& S) `8 `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??? ; b# V% `7 j& ]0 z6 }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????9 C) t0 D( i& y# V
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7 b1 f5 P; ^) Q$ y* a9 M2.这是request的程序: m# i0 Z& |- k, m# z3 F' m+ O5 M
// Request a value from Extend 3 `! ` f0 w* d3 ?1 r//6 q7 p- z2 {, [( @
// Initialize the variant that will hold the BSTR. Set the variant's 4 O7 T; H5 D3 ?' s* P" J" Z7 k// type flag to indicate the fact that this variant holds a BSTR. Place the$ ]1 X7 w4 q6 \/ d# e
// BSTR into the variant structure. + v9 B) c1 [7 J) p- V # U3 ?1 }5 R! C" m* @) ^) E requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; S$ k# u" Z6 k( z F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! h0 e/ l$ F* Y! e [0 s- l VariantInit(&requestVariant[0]); - l: ]! y; B* E! F) W5 A. g* E! x; K2 I
requestVariant[0].vt = VT_BSTR;: c5 N/ d: k& q
requestVariant[0].bstrVal = itemStr; " [. a2 n, q( T" ~/ Z9 D3 z( { 9 ~# F! l/ R, p& z topicStr = SysAllocString((WCHAR *) L"system"); , ^( q4 t! c* I; q w/ F VariantInit(&requestVariant[1]); 8 X9 S* c5 ?1 }: }7 p" a requestVariant[1].vt = VT_BSTR;8 A r7 s1 J5 K3 ?$ q5 ^1 x f
requestVariant[1].bstrVal = topicStr;* F+ S5 I/ e! x1 q: m2 f+ R7 {
. g; W# }1 X$ Q2 |7 r- ~ X- {// Set the DISPPARAMS structure that holds the variant. ) e* m1 j3 G+ j/ h( `/ J( X 9 c( q' z# q4 k dp2.rgvarg = requestVariant; 3 P. c$ E5 J# C S dp2.cArgs = 2;# c5 t* T4 a% H0 d6 E3 U _0 c, C: U( b
dp2.rgdispidNamedArgs = NULL;* T X! w/ }3 B4 N$ L, l
dp2.cNamedArgs = 0; 0 [$ d- z! ]4 }% w4 X# a5 N$ \9 q* M
var.vt = VT_EMPTY; " `! d) L' ]& K/ A0 S6 b Y: f, M2 Z, a/ Z# q, Z p( z! Y7 P1 J
// Call IDispatch::Invoke(). F% B+ s' y) V2 f
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hr = m_pDisp->Invoke( ( f( j7 ]) {- t# M requestID,6 l' n- y" I5 o! {3 L( h6 E
IID_NULL, " d. _5 ^( b9 [( [. I LOCALE_SYSTEM_DEFAULT,& Q: _$ l$ a7 Q
DISPATCH_METHOD, & i5 C: D* O, t) O0 B! h; ]* p &dp2,* }: I7 x% o# C! p5 G& x5 r
&var,4 ^: A' }# q3 h7 C- Q
&ei, 7 w; k' Y+ V6 Q. U: E% z0 ` &uiErr); ; \0 r4 Z8 s( I2 _% W+ ?4 W( l$ s8 Y( \% u0 g' n
SysFreeString(topicStr); 7 |' u# f: J# ?4 E" k- b7 f SysFreeString(itemStr);* Z: k) b: [" r. q" |; l) F
请问该程序是获得extend里面的哪个值? 9 b+ {6 w, W K! }2 B% y) ?" `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????