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:5 y1 Y, m# t' b6 F
Name = (WCHAR *) L"Poke";6 G% x: |1 s+ _5 F+ a
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hr = m_pDisp->GetIDsOfNames ( 5 f8 W* E* J: L: [2 g IID_NULL, // reserved & L: D. P8 ~7 _ &Name, // Array of names to get IDs for8 L, {- w+ `, z) ?' r
1, // # of names in the array6 @$ ^/ h/ j v* ~" m* u5 d
LOCALE_SYSTEM_DEFAULT, // System locale4 x- e+ p- \ A" a
&pokeID); // Array of IDs to fill on output& j2 ?; Z: [' b& K
+ `" G8 C+ y' [- M' q if (hr). j2 V0 j# P8 W0 d/ i7 D1 ]. d
{; V& V9 Z% c+ J% o3 d* p/ y
MessageBox ("Get Poke Unsuccessful");) x5 f# d& X% B& c$ \, G
return;( A/ Z4 j6 ]- M
} & Z# @' b/ B" y$ A' r . X9 J R+ }* Q! g+ a/**************************传递数据给extend**************************************/ ( g9 q$ C4 G: X" k2 q( c) ~8 G3 Q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' z# b: E S" o8 b
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valueStr = SysAllocString((WCHAR *) L"1232"); + ?; ?6 a4 [( o) u0 s VariantInit(&pokeVariant[0]); & d; S6 q) H' i; m, ] p5 q( Q# n
pokeVariant[0].vt = VT_BSTR; 0 T( C# X' E/ v2 T, Q ~ pokeVariant[0].bstrVal = valueStr;4 u! U3 O4 U" C. R; C/ B
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- U. d* W9 c# j7 x- P4 x5 B4 s
VariantInit(&pokeVariant[1]); 6 ?2 a+ N5 f8 n& f0 _& Y& ` @
pokeVariant[1].vt = VT_BSTR; 1 Y& d, m1 `. ]5 B0 W7 ~- Z8 D/ { pokeVariant[1].bstrVal = itemStr; # K4 H9 g. @% j& a. ]' K 3 C* x1 X; W/ x: G& u j topicStr = SysAllocString((WCHAR *) L"system"); 8 \' f0 _ j- `) o9 }% V0 A VariantInit(&pokeVariant[2]); ! {( ^3 f) }0 w
pokeVariant[2].vt = VT_BSTR; 2 U5 c# g8 L: ?$ l5 R pokeVariant[2].bstrVal = topicStr; Z# @+ g; Z9 M8 p1 F" q _( N$ H . o' \4 H9 H+ ~0 `0 U& A" p# M// Set the DISPPARAMS structure that holds the variant.# W2 t6 H4 ]' B9 G* x; h& ?
: T) o; F( T% t5 y8 O. `$ l dp.rgvarg = pokeVariant;, [; j# x% F Y3 G! U
dp.cArgs = 3; 8 }# D$ j- ~. a, w# O# G q dp.rgdispidNamedArgs = NULL; 3 e8 v0 ~6 q) @0 m dp.cNamedArgs = 0; / F: s" v. q4 S1 m& z/ }' l, b$ w3 E4 @; l
// Call IDispatch::Invoke()2 i) e( }5 s7 W6 B
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hr = m_pDisp->Invoke(* _) l) E# X5 \2 g J: W2 j
pokeID, - y% S4 p( E4 u IID_NULL,. v5 W3 p0 H3 k( \" h# }6 s& \
LOCALE_SYSTEM_DEFAULT,3 f: g0 q1 G8 _+ z
DISPATCH_METHOD, , \- _7 K- K, n &dp, 4 ]6 e, s% j$ Q+ _" ^5 X6 c NULL, ( z9 v2 a7 ?- @1 F$ d &ei, ; X2 {' L# j5 u% ?* Q &uiErr); 8 K7 a) {# Z7 }. z3 c' n6 x/ _, m9 y0 @9 L2 t" B
SysFreeString(topicStr);3 L7 W* x9 D* g: D; F* y9 R% F
SysFreeString(itemStr); ! n) v, h" k1 f$ ^! T( q# ^ SysFreeString(valueStr); # g& X! V& @. D9 ?/ ]$ q3 q# p# y4 X1 O g* e ^+ 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???: |1 A6 ?, L& T6 \( X: z/ l
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????5 W7 k- }" x, a; r
/ Y. }* j5 G3 h8 J+ Q! i/ G, q - w5 |$ e( q4 k" Y( G; i2.这是request的程序 : b9 J: d8 ]3 x+ V// Request a value from Extend 0 R( _3 K7 l' a7 j3 J- s) w1 m; B//9 u. X7 i& a, M
// Initialize the variant that will hold the BSTR. Set the variant's / N- v" P9 n' K! w8 k$ w// type flag to indicate the fact that this variant holds a BSTR. Place the6 d$ ^1 w& c9 p' n
// BSTR into the variant structure. $ e" I) D% S: s5 W+ s/ H" \& p9 {% x
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 J/ h2 \, [) W2 A9 \* R9 y* Z 4 f6 J: }1 d; [/ n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! x" T, Z6 Y2 C; } VariantInit(&requestVariant[0]); ; X- ^; G8 t. m7 x' b* g4 P0 A
requestVariant[0].vt = VT_BSTR;# {, c' @3 h8 e4 ?# Z) X5 a& r& N1 K' a
requestVariant[0].bstrVal = itemStr;- Y: k; h: W5 a. [& ?5 _- b
) N$ y o9 l* J; {8 h! [ topicStr = SysAllocString((WCHAR *) L"system");9 j: C4 S) [- c- m; o
VariantInit(&requestVariant[1]); 9 k+ E l) u& p requestVariant[1].vt = VT_BSTR; + P4 E" g+ n* S" M requestVariant[1].bstrVal = topicStr; $ v9 q& @2 n3 \7 G$ h: ]* K2 c3 f9 B% C
// Set the DISPPARAMS structure that holds the variant.9 u$ }% \3 b* y6 U k; |. Z8 B9 I
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dp2.rgvarg = requestVariant; ) Q i! O& D! C% M dp2.cArgs = 2;( C& @9 k' v1 E& i
dp2.rgdispidNamedArgs = NULL; % Y3 ^3 e# Z1 t" l" D5 d* T i dp2.cNamedArgs = 0; ' t/ B( X, r O3 z. a& d% F4 P7 W
var.vt = VT_EMPTY;6 h# C# t! U0 s
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// Call IDispatch::Invoke() 9 y& I7 k$ X% w- _2 i; K3 M8 Y6 F' B6 E
hr = m_pDisp->Invoke() H( X) C+ G( r: V7 b" E2 f3 E
requestID,1 N+ e* H( O7 c6 r! C8 c @
IID_NULL, 5 D6 S4 @0 v+ a8 O* O1 n* i LOCALE_SYSTEM_DEFAULT, 6 @7 l9 Z7 a2 t) D q' {% C DISPATCH_METHOD,# j7 p( c! h, H
&dp2,+ _! u; [9 L9 A7 `" t
&var, 8 r3 { j A: a' m, c &ei, . t9 t! C0 C; _; j8 d) E &uiErr);4 x+ W% `' B& U) N1 @
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SysFreeString(topicStr); & w& [& w+ t n SysFreeString(itemStr);8 ]+ G/ b4 j% h( J
请问该程序是获得extend里面的哪个值? * V- t; Q Z- q \2 k4 q/ [" w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????