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 d1 J. A3 Y( x# @2 N WName = (WCHAR *) L"Poke";* F- z: S. B# N+ F$ R
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hr = m_pDisp->GetIDsOfNames ( % }2 c2 f/ Y! N: A$ N% K IID_NULL, // reserved 3 d' V3 y! ]9 Y0 G5 l &Name, // Array of names to get IDs for 3 S8 F4 H6 J/ t" G- H5 y 1, // # of names in the array) @0 M& {0 P4 j! z
LOCALE_SYSTEM_DEFAULT, // System locale / k" I2 Z) h3 b9 e- C &pokeID); // Array of IDs to fill on output3 t! G$ W6 h7 C4 p6 d
2 m; J! n/ n$ C+ G3 s if (hr)2 m$ V: r7 Q4 u& R) s& V, @; k# S6 ?
{ / z) [1 s1 u/ P* C7 F v MessageBox ("Get Poke Unsuccessful"); + h' P1 A8 E5 a4 X. @1 H5 _4 o return;1 ^6 P1 |# x: ` _: X* K& ?
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/**************************传递数据给extend**************************************/ # j1 c$ D+ v6 P5 \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + V7 l" {( b9 N. h- r" B3 r: d 2 s) u1 H( E$ h$ p& I' {
valueStr = SysAllocString((WCHAR *) L"1232"); - ]3 X4 k! \4 r/ k4 z$ j* d" U VariantInit(&pokeVariant[0]); + \+ ^& i+ d9 V, ^& a8 ~" c) C7 }5 B
pokeVariant[0].vt = VT_BSTR;( }! o" l4 {' h! X
pokeVariant[0].bstrVal = valueStr; & m% i5 ^' H7 G7 C, g2 e3 j, d6 F: f7 O6 H5 P. L6 E+ ^* @1 R
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 {' f- F: l6 @: ]# ? VariantInit(&pokeVariant[1]); : \# F( q }5 l/ K) S, r
pokeVariant[1].vt = VT_BSTR; ! [. m3 i( Z2 Y pokeVariant[1].bstrVal = itemStr; 6 j* x& h g4 V5 N3 b% l ) k2 w7 @4 o0 p, ^/ ^! \8 u! i topicStr = SysAllocString((WCHAR *) L"system"); * n9 n8 m$ Y2 J) Q) b VariantInit(&pokeVariant[2]); " `8 q# r0 W& `& a5 z$ B# a" x pokeVariant[2].vt = VT_BSTR; ) m9 B4 p. L. f3 D1 N9 A pokeVariant[2].bstrVal = topicStr; - Z4 q; E i G* g+ U % @! R7 F8 P' A- O2 K0 X" L; G: Z) R. `// Set the DISPPARAMS structure that holds the variant.0 c/ C" v1 ]& c
/ q( K6 j! h& z0 c$ Z6 z dp.rgvarg = pokeVariant;+ y0 P( J7 U7 M4 ]. \& n
dp.cArgs = 3;& E5 J" A" T+ V4 B8 W
dp.rgdispidNamedArgs = NULL; ( T' [2 ?0 K9 w4 ?* J) Y dp.cNamedArgs = 0;1 q6 D5 q& Y) X$ A
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// Call IDispatch::Invoke() ( a" x6 Y! d' ~. q" z 8 }# g/ A Z }! Z, Z1 S hr = m_pDisp->Invoke( % A6 \6 `+ Q& a- p5 [ pokeID,- ?) F* z y8 g5 C. Q
IID_NULL,& G% |5 s* ]0 E9 L
LOCALE_SYSTEM_DEFAULT,% x, b. ?5 ~, A! B0 ?! T: e8 U4 ?6 }" ^
DISPATCH_METHOD," [; F. d& b9 r# W
&dp,9 f. q7 f$ F$ ?7 Y( t) h% \
NULL, ) B7 S# r1 v! S- H &ei,' E0 c* v8 W" B8 I$ ?9 ^
&uiErr);/ p" z3 T7 g' _
1 y* s" m5 u: h# \& H# R4 `9 h SysFreeString(topicStr); 8 H3 M' C/ Y- x SysFreeString(itemStr);/ G$ P- k. a7 d# Z2 V9 k+ x& F' F
SysFreeString(valueStr); 2 O4 W) P8 F- U& Q4 T1 P S! K9 ?2 K. q1 }7 L8 t: r
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??? / x& D s5 {# c7 x1 e1 o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????* e/ ^8 N' k2 ]. `" J
! _5 ]" c1 O+ G2 k - d Y8 P g" u, t* |7 [% v$ a4 Y! N2.这是request的程序- a; u1 Z8 t2 B5 i
// Request a value from Extend & V$ z! R9 |) _0 D// ! c) ]( F) @0 ^, q0 @2 x8 u// Initialize the variant that will hold the BSTR. Set the variant's ) p D5 f" e) D' E4 V// type flag to indicate the fact that this variant holds a BSTR. Place the 1 l9 ]* O" b; N% B G3 u5 r// BSTR into the variant structure.8 K3 h7 v. p4 d% u3 k. _8 l
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; x N |# z; s2 x- i. B + V& r+ i1 s1 \8 } S2 \ l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 M/ N0 Y) u1 N9 a- B3 R7 M+ Q VariantInit(&requestVariant[0]); 6 G; `' T6 e9 Z: m$ f0 G* l requestVariant[0].vt = VT_BSTR;+ F* o4 D$ I( ?% t+ a: `
requestVariant[0].bstrVal = itemStr;' @& w& @' H6 A# B2 f
4 m( W# R2 l6 U6 }- {& i6 d ] topicStr = SysAllocString((WCHAR *) L"system");# w7 f5 y0 {% V: t) X
VariantInit(&requestVariant[1]); % N) t% j8 L9 g% Z4 p; R- _ requestVariant[1].vt = VT_BSTR;+ y, ]; ^* ~& e8 e* H6 q
requestVariant[1].bstrVal = topicStr; ) R* G2 i, Y- V# ~: S- I! O2 b& F& Q" L: a1 b: ]- l* V
// Set the DISPPARAMS structure that holds the variant. : w1 b1 G1 b7 L. ^9 A1 d* q! u% B , G) I, S: l% D6 _0 e& F dp2.rgvarg = requestVariant;7 }: D0 {- ^; ^9 Y
dp2.cArgs = 2; $ @5 u7 f% C9 W& I% R dp2.rgdispidNamedArgs = NULL;" J c! P2 P L, W
dp2.cNamedArgs = 0;- G0 X( O) q) j4 |9 B t% w
# w% {' u, K6 j* U( [ var.vt = VT_EMPTY;( F! Z3 D/ F# p' C- D0 {" a) v7 O2 I
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// Call IDispatch::Invoke() % }' Q+ [/ v. k; f8 @8 i1 N: W D/ g! s, D- x. o: W
hr = m_pDisp->Invoke( t7 |. ~9 Z' s: _6 \ requestID, ! \/ [7 k0 ^# J& n" r7 {4 H4 } IID_NULL,, @1 |5 {% g9 [, |1 W
LOCALE_SYSTEM_DEFAULT, + d6 D5 w* m& O* Q0 _3 ` DISPATCH_METHOD, # J+ k6 M/ D( ^* g9 C, i &dp2,% Y8 W% c3 S' Q/ S
&var,* j! @/ H- v+ v
&ei,$ G6 c4 t8 P Z+ Z3 ?( N3 }
&uiErr);) W) ~; E! \3 ^8 K8 d
6 F9 S: T# h' B+ r: M* k+ L5 k SysFreeString(topicStr);/ w3 t3 q' Y" n, z) l
SysFreeString(itemStr); % |5 O) h1 B/ p* ?: v请问该程序是获得extend里面的哪个值?6 X M; j* ?# j: @7 l
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????