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： / s$ Q, E1 u# R" aName = (WCHAR *) L"Poke";0 \) E$ q2 I) g! A& g& i. {" S N
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hr = m_pDisp->GetIDsOfNames (- Q4 U1 C9 m, F0 j, g
IID_NULL, // reserved) Q7 ]! A: H; ]- ^, E2 g- T
&Name, // Array of names to get IDs for 7 B `% |( ~: M9 l( h, M( a 1, // # of names in the array8 [0 n( F5 p; Q, ^
LOCALE_SYSTEM_DEFAULT, // System locale ( r C" \" P- v+ H G &pokeID); // Array of IDs to fill on output 4 [/ L: |1 r' V1 s ! k, G5 i7 m4 x2 f
if (hr) 4 N- I, o% g9 C6 I! H1 n0 V! H( ^& d {! O8 e" L8 P9 b
MessageBox ("Get Poke Unsuccessful"); % |3 d+ L8 ~: {* [( S' ?. ? return;: c: }, x$ G$ Y, i
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/**************************传递数据给extend**************************************/ 0 l# t: r Y8 Y, w% H& ?0 t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ `; ?/ Q/ G/ r* g T8 C% R1 ]% ~! x
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valueStr = SysAllocString((WCHAR *) L"1232"); 3 t0 a* M. X" S/ _% J VariantInit(&pokeVariant[0]); 7 Q& X% @ l7 X pokeVariant[0].vt = VT_BSTR; / \( v$ I* R9 B5 ^/ E' a pokeVariant[0].bstrVal = valueStr;. L. p$ o. I1 N- B2 D5 ]. r; S8 K
" |. N8 {2 H- J" N5 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 {) O8 p! } w7 T VariantInit(&pokeVariant[1]); ( E* m9 |( q) k
pokeVariant[1].vt = VT_BSTR; 4 Z3 W0 A0 N5 v- b pokeVariant[1].bstrVal = itemStr;5 a5 l& s0 N6 R6 T8 ]1 ~
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topicStr = SysAllocString((WCHAR *) L"system");, G8 T6 t( F1 q9 d1 c) x% b
VariantInit(&pokeVariant[2]); ; _2 J+ D5 u! B- P
pokeVariant[2].vt = VT_BSTR; 9 c/ \/ Q9 i% ?! p1 x" Y2 \! ~ pokeVariant[2].bstrVal = topicStr; 5 e- ?; e1 H7 N! t( E 5 `! K9 V6 l0 `5 \4 e// Set the DISPPARAMS structure that holds the variant. 0 R7 M }# m0 ~2 _: j6 i- U , f' K1 o: B6 i/ [. F8 s2 v dp.rgvarg = pokeVariant;4 H6 }6 ]' H7 ^# i8 l
dp.cArgs = 3;6 Q; K# _ b' p
dp.rgdispidNamedArgs = NULL; , P3 q# y( r4 J- h dp.cNamedArgs = 0;- n2 g5 u1 ]. V0 \# Q
# j* x6 M+ c. R' H1 w1 m: b+ n// Call IDispatch::Invoke() ! ]! Z% o( C8 q. B! r k ; F# A# M2 F- R' L# x& B hr = m_pDisp->Invoke(5 h) G' ^0 }6 U9 e7 N
pokeID, 7 p' @( J2 E6 G IID_NULL,8 T! m0 n/ T' ?
LOCALE_SYSTEM_DEFAULT, 3 z7 e) q; y" y0 M' n i* Q1 t DISPATCH_METHOD,3 Z% B( f8 ]3 L. n9 Z
&dp, # U) H" p' w' d1 _$ `% L% J NULL,1 [7 n% Q/ {) E8 x
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&uiErr); - z9 q3 g% l- X 8 K4 c. C6 D0 G: o+ P. e/ W SysFreeString(topicStr); # h6 K. f% j+ u) F SysFreeString(itemStr); 3 }' F# z& c! e' {7 U9 V& K7 A4 a SysFreeString(valueStr);: L4 y; p+ q7 g
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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？？？ 5 \$ c( h/ r$ K/ M& I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？？？？6 a$ J$ I3 \, @0 H! y$ Q
2 ^3 D: h7 T; b' q + o1 E, r1 c& |+ i' Z2.这是request的程序 4 w6 B |& |% U" g! {, V/ _' G// Request a value from Extend 8 c0 j7 g, ]+ J! d ~ a' w+ T//5 \/ r8 ]: X% A
// Initialize the variant that will hold the BSTR. Set the variant's/ C3 S4 J8 ]1 ~* H8 D9 b
// type flag to indicate the fact that this variant holds a BSTR. Place the 6 Z8 i0 G8 S9 \! H/ M/ p// BSTR into the variant structure.5 u5 M* ]& F8 j5 I, B5 A4 N6 I
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( X O' `, O& k 5 P+ l/ k2 C& A. T) @0 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. `3 O, O! F8 D3 F5 J) H
VariantInit(&requestVariant[0]); 7 K/ b: j* R- f% B
requestVariant[0].vt = VT_BSTR;' y8 F p. D. x: ?6 K" U1 `
requestVariant[0].bstrVal = itemStr;# w" c; j* _2 ]$ v* j2 P0 W/ J
5 Q& \$ |+ \% s, H1 V topicStr = SysAllocString((WCHAR *) L"system"); ! V; i+ s! W- A( [& E4 D9 L* q- u8 B. K a VariantInit(&requestVariant[1]); & Y, \* K% K2 ?0 W
requestVariant[1].vt = VT_BSTR;2 r. S9 N2 n" x& V7 J
requestVariant[1].bstrVal = topicStr; - \+ u9 j7 j8 d( H 6 l* [! m0 Y3 y) F" W// Set the DISPPARAMS structure that holds the variant.* g% T$ `! O% R: k3 D
/ Z+ L. d" ~* { dp2.rgvarg = requestVariant; e/ m6 s8 U6 A7 r% j
dp2.cArgs = 2; 6 R% C% [3 G% z, L" I5 J% m dp2.rgdispidNamedArgs = NULL;+ [' |; h- e- V; S8 | w
dp2.cNamedArgs = 0; 3 m6 K1 u1 Z" T: r' z1 k) x v
var.vt = VT_EMPTY;- U% c3 L: |6 V$ O
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// Call IDispatch::Invoke() 1 ]4 D: ]3 ^0 g1 @" u : w; b. M+ x5 d: D; K: D hr = m_pDisp->Invoke( : A, I$ y9 R" H% C4 Z$ L requestID, . a' y& H- h ~0 v3 m" W IID_NULL,) Z$ Z% w. N0 H- p1 M
LOCALE_SYSTEM_DEFAULT, ) C( D. r1 a8 A% j" G: ` DISPATCH_METHOD,& U1 U7 o8 B- |/ o! {% M
&dp2, ) O! v4 p8 o! B6 e4 e- P9 F6 h &var, Y0 D! O# g3 \" |5 F &ei,7 l, Y6 g% [! g, [' B
&uiErr); 1 p7 U) l* d' M$ @8 U( f9 M. Y T
SysFreeString(topicStr); 5 V5 O( c5 F# w( g d/ a SysFreeString(itemStr);. m! E: }1 q* h" h
请问该程序是获得extend里面的哪个值？ 1 q4 p% r0 j0 P6 i' N* ?8 ?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？？？？
发表于 2008-11-25 19:37:03
