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 ^1 q# C$ ^" \Name = (WCHAR *) L"Poke"; 6 o- i. A) ]! h5 ] 8 k# q# D# H( K1 q
hr = m_pDisp->GetIDsOfNames (' T! `9 Y# N6 S- z
IID_NULL, // reserved; v+ v6 u( H( c
&Name, // Array of names to get IDs for 3 K$ Y& F" p" s7 ` 1, // # of names in the array ; v. ^ Q6 y5 W; w LOCALE_SYSTEM_DEFAULT, // System locale% h4 o6 h6 Y" {! b- S
&pokeID); // Array of IDs to fill on output% f. S \. t. q8 |% y. [4 `
" o5 J7 f3 C/ K2 S& a: \ if (hr), [* t/ q/ m, l7 J* A
{ 2 S6 ?' R0 l& e$ Y MessageBox ("Get Poke Unsuccessful"); : s! f C' h2 a7 V' t0 z/ m9 x return; ! \! d7 J! ?3 q9 G- v% x0 Y }+ a, \5 j6 U# P2 E/ C# k: o
! P9 a) k6 {: x/ S+ h! H/**************************传递数据给extend**************************************/( s3 w/ S3 E+ w5 J
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, x4 E7 Y t* |) j2 }2 d
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valueStr = SysAllocString((WCHAR *) L"1232");& u( J. m% n- b; T0 E( @+ V
VariantInit(&pokeVariant[0]); . [1 } H( h m( V
pokeVariant[0].vt = VT_BSTR;* c8 O/ D" m: X4 h$ i: Y6 [4 O
pokeVariant[0].bstrVal = valueStr; * L. V: D% u4 z) T4 h1 g) c5 `0 ?, z6 P- ]" `
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ a0 P i8 m$ I2 L
VariantInit(&pokeVariant[1]); % l }8 d& w5 X, {/ b6 l, F6 u7 _
pokeVariant[1].vt = VT_BSTR;8 w8 s1 U! ~& \3 H
pokeVariant[1].bstrVal = itemStr; F8 \* ]& |% i* m
9 A; L8 m" ]+ s) {. T) o topicStr = SysAllocString((WCHAR *) L"system");+ ~! N2 \% k6 B, E; [4 i( `
VariantInit(&pokeVariant[2]); ! U1 R% e! g% W( B; y* V& ^% r pokeVariant[2].vt = VT_BSTR;7 J- r; p1 J- K4 ]: B0 c$ J
pokeVariant[2].bstrVal = topicStr; : Y8 r* H& E; e A3 q0 G+ K ' L& m& E% K6 x( n" Y; |// Set the DISPPARAMS structure that holds the variant. 9 t& [) h7 j1 ^7 f9 \2 ]$ Z0 b$ `9 [- ^- }
dp.rgvarg = pokeVariant;8 Y5 m9 M! M9 g2 W7 `6 ]
dp.cArgs = 3; 9 w$ | u) A2 {. P6 B dp.rgdispidNamedArgs = NULL;) s8 g0 y l9 Q+ O/ Q
dp.cNamedArgs = 0;- H! r+ A8 ~4 ^- O
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// Call IDispatch::Invoke() 1 C4 I2 ^" \; X R* _6 N- Y4 d' A* [# a! I: O
hr = m_pDisp->Invoke( : c& l# G% H. S; D pokeID,5 j) i" t9 l2 z. {, C1 S; \
IID_NULL, ) b4 i# m# L3 ]' M k6 F LOCALE_SYSTEM_DEFAULT,# j0 g# t% ~2 D0 C% Y4 g$ a6 }5 S$ H
DISPATCH_METHOD, 8 P. R) g, O# G" }' b2 H &dp, * R0 o: W& y6 b+ y/ n6 O$ k$ ] NULL, F9 d. L0 o6 F, V$ N$ ?, F+ h &ei, 6 P& U. {8 X% u: E+ G- b- E &uiErr); # ]# N7 t5 {" c) J* J2 {) K! _; p7 a
SysFreeString(topicStr); 7 ?4 I$ \& m, p; h) [$ k SysFreeString(itemStr); / l9 N3 [+ q7 u% M# ^' ?4 a- X SysFreeString(valueStr);3 i6 c6 S9 k6 G& P
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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??? ( @4 M+ I- ?! C6 F, K8 v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* y% z6 z/ Y' ^6 u* ?/ m
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2.这是request的程序 ; D8 [/ ]6 }* v& M// Request a value from Extend 3 M- a- Y4 ]4 W4 m2 ? U// $ Q+ H/ |6 D$ W( }! m+ I# s c// Initialize the variant that will hold the BSTR. Set the variant's/ T. l1 v8 l5 Y) O
// type flag to indicate the fact that this variant holds a BSTR. Place the + n0 r2 L- `" O7 B// BSTR into the variant structure.1 U# K5 G3 \! p2 g, p
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 b3 G6 O' A/ q j$ o4 Y) r! V - M; s1 M1 A. x1 E% m( v9 G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 f$ f/ n) X' w0 l- ]3 \: M0 y$ }( E7 L VariantInit(&requestVariant[0]); # G6 m5 ~; O( F4 n: B9 N% H requestVariant[0].vt = VT_BSTR; % @! j- M" s2 V* n6 d requestVariant[0].bstrVal = itemStr;+ i4 n* T9 V% v7 G: V2 O4 m
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topicStr = SysAllocString((WCHAR *) L"system"); ) R& y7 K& ~; M+ [5 D5 W VariantInit(&requestVariant[1]); d7 Y' t4 `& P2 D requestVariant[1].vt = VT_BSTR;. u" |$ g9 x# s
requestVariant[1].bstrVal = topicStr;* c( [: Y# i8 C- S7 h& D0 j
! g6 p/ o/ H$ F0 F// Set the DISPPARAMS structure that holds the variant.% X% a, d V( M a* Z% x' h
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dp2.rgvarg = requestVariant; 3 Q: B8 r& ]8 ]- L' R% z dp2.cArgs = 2; / B. S" X4 ]: I6 H, w, \ dp2.rgdispidNamedArgs = NULL; : G+ F# t7 ?4 h7 y dp2.cNamedArgs = 0; X9 A: y' f+ H7 a % O# D' n x. ^# N P0 \% h var.vt = VT_EMPTY; 2 O# W# C. z6 ?1 R( P) _ v4 g # r7 A$ z J) S+ A k7 l( Z// Call IDispatch::Invoke() % J# h1 O' F1 o/ J) _ 5 D8 L6 ?, N; X3 k hr = m_pDisp->Invoke(/ ^! h: ?4 g' p7 o1 I" p) k
requestID,6 m' @" C% U4 W% m: P
IID_NULL,. a; H# |: b+ E$ \4 ?8 F4 P# |
LOCALE_SYSTEM_DEFAULT,% e6 B9 A( s2 T
DISPATCH_METHOD, 2 R2 i+ B8 A* _/ o7 g& N* e &dp2, ! E# q5 }! C# y, |3 V. S/ O &var,. ?# G9 A- {2 i
&ei,) E" D* Y9 ~: c6 g- @! y
&uiErr);# N! x: s& `* X, Z
w. Z/ f8 _1 m! w
SysFreeString(topicStr); # p4 P! C# f, ~, \ SysFreeString(itemStr);/ w+ ~5 V2 k& _" m. a. L: N6 r
请问该程序是获得extend里面的哪个值? ( k5 ], L1 g' Z5 P: I! t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????