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: " k0 ?1 A% J& H7 BName = (WCHAR *) L"Poke";: J% B0 Q. \8 z
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hr = m_pDisp->GetIDsOfNames ( 3 ]0 A7 i" D% G: m- e0 P" s6 F IID_NULL, // reserved 3 D Y) T l$ X, u& i3 C &Name, // Array of names to get IDs for . n, H' `; `) `6 ]1 ^ 1, // # of names in the array h$ X' h5 C6 H LOCALE_SYSTEM_DEFAULT, // System locale& D8 j7 E I. x# g- d8 _" \. s
&pokeID); // Array of IDs to fill on output " ?# x! f3 c' }( z* W9 G+ Q; t " a/ d* g7 T. v# z* q; H1 H# m
if (hr), g9 G' s8 e f; _" z9 R+ N
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MessageBox ("Get Poke Unsuccessful"); 4 Q2 o) z4 A. W4 p6 \3 e5 e return; 2 D/ m+ o1 ^9 F } V) [3 F3 E) p) V3 S5 P! ]9 I8 t7 D) p4 f2 M3 `
/**************************传递数据给extend**************************************/ ' d% {6 L, Y. ^% e* x6 P3 | pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 I) Q3 K+ ?3 P/ |. [ 4 e8 q# D6 A! j5 d$ R' k valueStr = SysAllocString((WCHAR *) L"1232");" ?* I# R# D/ W: R4 ~% G8 w" i
VariantInit(&pokeVariant[0]); + o9 o# r! D5 l: M' W
pokeVariant[0].vt = VT_BSTR; 0 w! Q4 D" M6 E pokeVariant[0].bstrVal = valueStr; % w0 f( F( c0 y# J8 T* Q, A/ u [- T* _8 O3 X; T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! q. L2 O& |' g% O: o4 V% s
VariantInit(&pokeVariant[1]); + d3 ~9 A# u5 V: J5 A$ L0 z0 i pokeVariant[1].vt = VT_BSTR; 5 Q3 Z% K/ z* _ pokeVariant[1].bstrVal = itemStr; ) w& w+ h+ W. y& P$ p6 l/ Q6 d4 `6 [6 l
topicStr = SysAllocString((WCHAR *) L"system");2 `. Y2 x9 O4 U) w$ e: D# F
VariantInit(&pokeVariant[2]); ' M9 f( A' y8 | E
pokeVariant[2].vt = VT_BSTR; # }" F" p$ J2 g pokeVariant[2].bstrVal = topicStr; , }% W( ^& V+ K ; L6 x U% Y, r4 P0 R- |// Set the DISPPARAMS structure that holds the variant. J) Q) T6 M+ ^ C* s5 [- f ' K* G# H: M1 \2 L2 G, A( E dp.rgvarg = pokeVariant;/ V, h* |/ c# T) s9 y& b r" o& Y2 t
dp.cArgs = 3;/ ?+ L& T6 V3 T$ f
dp.rgdispidNamedArgs = NULL; ' T* p6 ?3 V: {7 G2 W dp.cNamedArgs = 0; & W4 V+ c) n- n* ?5 S5 A5 X' A 1 p j- m5 H6 Z8 n4 d! g+ V, R; e( r// Call IDispatch::Invoke() # K) `. b$ a* Z 8 ~5 D; n9 b7 ]: A hr = m_pDisp->Invoke(+ a4 ~8 Y' W. c9 f/ c/ x4 B
pokeID, , i6 ]) W# G3 t IID_NULL, " k) D" q) X9 ?8 [ |! v LOCALE_SYSTEM_DEFAULT, 1 G3 w1 K0 g. h+ ` DISPATCH_METHOD, / t; N8 C8 U' e) M( ~, B, Z# b8 d &dp, - N1 g3 T8 ~) Y! K NULL, , h9 Q; [, G( u: z &ei, ) J+ A" d( ]5 ~8 J; C3 R. F &uiErr);' _8 J5 m8 K- ?, M6 v3 o" B8 {/ @+ y
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SysFreeString(topicStr); ; g& X$ j7 w9 J) \ SysFreeString(itemStr); . E; `, d2 C2 Q; u- ~0 ~% a7 e SysFreeString(valueStr);5 ~, S* G4 q( c f
7 Q* `. v+ n. h6 |, i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??? 8 k" s5 T1 |) u, O/ T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????. d+ h9 v2 U, Q2 L# T1 n0 n
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2.这是request的程序% c4 \3 G. S2 E0 u6 v1 o
// Request a value from Extend4 C7 D1 F8 r5 S
// w4 |2 o$ t+ Z0 _) Q1 \( g! r8 p, n2 ^
// Initialize the variant that will hold the BSTR. Set the variant's8 z" M2 X- Y" Q$ o
// type flag to indicate the fact that this variant holds a BSTR. Place the" _: q' d6 C3 Q i. e. t
// BSTR into the variant structure.: c% X% {/ k' j5 W* l' \" \
2 a. ] w7 }9 U9 G1 s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 j& ~1 |+ _/ s2 K5 R
7 e- n( o6 S* G3 O5 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 _- g/ e. N( W: u) y9 @- k$ C
VariantInit(&requestVariant[0]); 6 C0 `8 b% w; Y- k
requestVariant[0].vt = VT_BSTR; q; k$ c7 s- s/ }0 R0 F
requestVariant[0].bstrVal = itemStr; ) [+ l& c) K. ] v P5 K: T8 {4 B topicStr = SysAllocString((WCHAR *) L"system"); ( s6 i7 ~6 g8 n1 f. T, Z) Q VariantInit(&requestVariant[1]); 8 u+ @5 k9 ~$ R2 }4 v2 B: n p( \5 t% L
requestVariant[1].vt = VT_BSTR;8 H$ V7 C. K# Z2 f: T1 v/ N
requestVariant[1].bstrVal = topicStr; 2 J9 J/ l! f1 z# L; A ( z3 |& A {) Q- i, C4 U* X/ f! o// Set the DISPPARAMS structure that holds the variant.+ n4 {9 E/ {& p; v( [4 I. Q# B
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dp2.rgvarg = requestVariant; ) N+ K! N1 L/ S dp2.cArgs = 2;7 F; w1 L) e% u i c9 P
dp2.rgdispidNamedArgs = NULL;; s0 S4 c, F) M w
dp2.cNamedArgs = 0;( m8 ?4 _/ N; C; e
) O& N: B% `( L var.vt = VT_EMPTY;8 m9 C e6 }0 G, z8 s5 B
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// Call IDispatch::Invoke() 2 R! D! m- n+ E6 G E7 \1 C; ~ . ?, a& I: E# U7 C2 A hr = m_pDisp->Invoke( ! H* U5 X6 W0 A0 m8 \! V requestID," k, |7 ^ r F4 K+ F$ g
IID_NULL,6 f6 q0 d5 j3 c W. A0 K& J G
LOCALE_SYSTEM_DEFAULT, : h! p% b* ^: E9 P+ } DISPATCH_METHOD, 2 P2 s0 K4 M- y5 U* R, W& D! R &dp2, 1 w( h0 G5 L- @. W &var, ) `9 Y/ L9 m- c9 U &ei,; m% Y& G0 t4 t; ~$ j! n4 D
&uiErr); 6 @8 {1 F$ P, \8 ]$ U0 v+ X% q8 @1 _ u3 @" T& L9 P
SysFreeString(topicStr);0 F6 T* b, F& d$ o# h6 F J! M3 J6 Z
SysFreeString(itemStr); 3 ? U2 j* ~% A/ s请问该程序是获得extend里面的哪个值? 3 f% I! }- Y/ k v8 I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????