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: - K! x, m* M: t) X' L, GName = (WCHAR *) L"Poke";2 | q) |$ {& d. f D1 Q
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hr = m_pDisp->GetIDsOfNames ( 3 z& e! [* U; O% h IID_NULL, // reserved0 o+ k) O' S: g1 U
&Name, // Array of names to get IDs for 0 G b/ _7 C* H 1, // # of names in the array+ y) u8 ~; }' C3 ^1 O6 u% N
LOCALE_SYSTEM_DEFAULT, // System locale * O0 ^; K' j( q! P7 c2 l# [ &pokeID); // Array of IDs to fill on output ' H A4 f# B/ k+ l- v . e# q1 [' ]( V* F0 S6 [ if (hr) ) A. p) O2 u5 ~, [ {* g" h# }; j/ j ^, v, u. I
MessageBox ("Get Poke Unsuccessful"); 1 Z) `( K1 ?; I7 s& A K return; 4 O# ~8 \% N- f+ ?" B2 b } 3 P4 ?9 J- [5 u + y4 I5 ^ X: i l- E& @/**************************传递数据给extend**************************************/$ ?- {6 b: |* G5 L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * g3 Y" B, ?" I" b 6 a+ {4 @3 i" A; T3 z valueStr = SysAllocString((WCHAR *) L"1232"); & X+ a9 t9 u& R* k3 N VariantInit(&pokeVariant[0]); * ]3 W( X/ p' Z X8 I) @% \ pokeVariant[0].vt = VT_BSTR; 3 B& r r7 Q4 h( F# [ pokeVariant[0].bstrVal = valueStr; 0 e/ Z" P/ j) t' Z $ z& S E! c5 b0 A9 N/ F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! V# S# L4 |3 S
VariantInit(&pokeVariant[1]); . U" T" ~' i2 g& P pokeVariant[1].vt = VT_BSTR; # P$ Z; F+ {% W$ b+ Z6 o z" Z pokeVariant[1].bstrVal = itemStr;$ v* u m: x1 y# O f( _
# ^" S2 W6 N2 S0 U. P& o0 } topicStr = SysAllocString((WCHAR *) L"system"); : _1 P: }- [0 N8 Z4 o3 l VariantInit(&pokeVariant[2]); $ _( d( U# a0 u4 d2 ?
pokeVariant[2].vt = VT_BSTR; 5 a! G& `8 h/ f5 Y5 d) N' b pokeVariant[2].bstrVal = topicStr; ' D5 H! X. v3 X" n) v: x5 V; t- ?0 j" B) I) F. ~
// Set the DISPPARAMS structure that holds the variant.8 K; M0 V. S, |6 \3 d0 H
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dp.rgvarg = pokeVariant;4 c- X4 p' L4 [5 r+ Q
dp.cArgs = 3;( k4 `' l6 b" X3 t. N4 x. ]) `
dp.rgdispidNamedArgs = NULL; $ K& U" e% N) B# U: F dp.cNamedArgs = 0;# I5 Q: i% z& X x# x- u
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// Call IDispatch::Invoke() / i" l# I% A. D: U; |' F, f8 Y3 E. }% s8 E. b. j% Z
hr = m_pDisp->Invoke(+ t0 U" B6 L- k+ x( L3 s
pokeID,9 i, X$ a2 Q- t- O4 O1 A3 S
IID_NULL, 5 C! m0 D1 G7 y5 r6 P7 t LOCALE_SYSTEM_DEFAULT, . G0 { O* D8 y) P% O1 A5 p, R- J DISPATCH_METHOD,3 ~" r# P( I* `2 K
&dp, " c# O! E9 t6 ] NULL, $ C% n: Q! {0 O: p% @4 m) G &ei, * ]" C7 n% g' |0 r) h+ A; a' ^! E &uiErr); x6 ?9 d$ V. n: l- [: {6 A1 I" R6 q; S! \0 o7 X# }) A
SysFreeString(topicStr);( U3 [2 O" R6 y8 M3 P0 ^0 U
SysFreeString(itemStr); ! J7 c% T/ x6 J9 I* G: G SysFreeString(valueStr); 2 V7 G: [# m7 `% r6 W$ m3 A- y- ] : h- a T- q% 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???, {, `- r) i0 }. W2 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????! v/ D! A0 O7 a
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2.这是request的程序 0 w0 ?/ c# S& z- i$ Y# |// Request a value from Extend 1 o9 t6 s. a) ?' Y//% B, ]9 w! O' w8 T0 }
// Initialize the variant that will hold the BSTR. Set the variant's ' o6 R; E/ t; p5 N8 r4 ^' j8 b// type flag to indicate the fact that this variant holds a BSTR. Place the* V$ W! }+ E/ b' h. O. @2 h
// BSTR into the variant structure.3 D. B, h2 F) z+ ~
/ R) H7 I8 ~ A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! x$ { X! y% ~/ b 2 b# l0 O0 z8 L( c
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. `4 p; @3 V9 w/ s
VariantInit(&requestVariant[0]); A7 A2 a0 Z1 Q4 w requestVariant[0].vt = VT_BSTR; & k6 v; V! X0 f* ^ requestVariant[0].bstrVal = itemStr;/ N+ I# u L" {: `. v: Q0 c+ t5 N
( a( l) r. B7 Z; B* [2 u topicStr = SysAllocString((WCHAR *) L"system"); 8 X0 D0 b) P9 G$ S VariantInit(&requestVariant[1]); 4 j9 _% a6 s. S requestVariant[1].vt = VT_BSTR;" H; e% }3 r8 W# z4 ?' z( O6 l
requestVariant[1].bstrVal = topicStr; + }' ?* Z9 n# f4 o1 @. T" @' I- o H" I
// Set the DISPPARAMS structure that holds the variant. 4 l/ @0 c$ J2 P% |: v' H 5 }. S) ^) |/ |: r M dp2.rgvarg = requestVariant; x7 }5 l: T r
dp2.cArgs = 2; 6 W2 a' h" o2 e3 f3 J dp2.rgdispidNamedArgs = NULL;# T7 H& E7 _: a" k0 R6 G
dp2.cNamedArgs = 0; - b2 f# D) r; @8 m" R. E* e) k. O# `
var.vt = VT_EMPTY; 0 Z% f% n# p! K: g2 d1 J/ l' G( _: c0 a+ m4 y
// Call IDispatch::Invoke() 6 c. {' @! w7 I' J' M8 \/ c0 V6 q5 l/ w) w( O: I: R5 [) m- i
hr = m_pDisp->Invoke() A, o! p% K% j
requestID, & o; ^; O0 {2 I4 @4 d+ B( P IID_NULL, 8 M) ~, G4 G3 h LOCALE_SYSTEM_DEFAULT,% ^2 n2 k3 o; q6 a
DISPATCH_METHOD, 3 t7 s7 K' B2 i8 ]% ~ &dp2,8 Y' f4 H+ P$ g9 h6 s; W. b% p
&var, ! a- d+ r. q+ B+ p* i/ S &ei,& I- f, K( G2 N& x" ?, e
&uiErr);% P" M9 R& r! P* u2 P
2 G8 {2 I% c! D+ C SysFreeString(topicStr); - r& N. S0 \7 i5 S! u6 \# c1 l3 U SysFreeString(itemStr); 9 r0 Q6 T( c' I请问该程序是获得extend里面的哪个值?% V5 L; z+ y8 k4 H# l$ M0 A* N) J) S" g
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????