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:. n9 ~6 R9 Y' D* x6 u9 Q
Name = (WCHAR *) L"Poke";) w0 d) \3 g8 ]% e7 x; w- N3 U
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hr = m_pDisp->GetIDsOfNames (4 h7 }4 b1 Q$ I9 v3 M8 }1 v
IID_NULL, // reserved ( U* o7 w1 m# p &Name, // Array of names to get IDs for ]$ x6 U' W( T, U( A 1, // # of names in the array 9 O1 h: k4 ] K' U LOCALE_SYSTEM_DEFAULT, // System locale 9 q; F$ x2 K) f! W9 }, K &pokeID); // Array of IDs to fill on output - R, {, _4 g; B. P0 {8 J , M& C) M; m: V if (hr) a, k& S" ^. B3 X, F% l/ V. a { 3 \; _# d" V7 y2 m# \ MessageBox ("Get Poke Unsuccessful");$ _5 b( f* z- p% C) k2 L
return; 5 D9 @2 ?) q6 \2 i }, h9 R, P9 F9 a+ H
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/**************************传递数据给extend**************************************/ ) Z R% }* q. I# W% F2 ^ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' A C$ Q; H9 A; r + e9 ~4 }5 `6 Z# S+ c/ @
valueStr = SysAllocString((WCHAR *) L"1232"); % B+ X# O: y" P2 ?8 c# X VariantInit(&pokeVariant[0]); 0 L8 l& z# r( G- K8 K4 H pokeVariant[0].vt = VT_BSTR; F A6 y5 J( n |- c- `. N pokeVariant[0].bstrVal = valueStr;) D7 V) ~* F( K- I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; P ~, [/ ~6 o$ y
VariantInit(&pokeVariant[1]); 0 T2 |% P! y7 } pokeVariant[1].vt = VT_BSTR; % P+ ~' C) S4 Z# D e pokeVariant[1].bstrVal = itemStr;% W/ O: ~" N5 L& A
* F' N- ?$ [ u6 ? topicStr = SysAllocString((WCHAR *) L"system"); 0 E" _: H7 P* Z! p% o VariantInit(&pokeVariant[2]); ; B! @2 J" t$ P" a: P
pokeVariant[2].vt = VT_BSTR;. ?, N. `6 S+ r0 }
pokeVariant[2].bstrVal = topicStr;# a+ B; b9 y% ?
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// Set the DISPPARAMS structure that holds the variant. 1 W$ a) x! _ z' w E/ R8 N9 ^& T! d) s' w# k5 h" X
dp.rgvarg = pokeVariant;, o' N# P) L2 h# f% J+ q
dp.cArgs = 3; 8 O( d4 e/ K( T: ?( x4 c3 N2 t. c! s dp.rgdispidNamedArgs = NULL;4 P X% A* E0 |5 n9 o: C% h7 T
dp.cNamedArgs = 0;% ]0 U9 J: K( N& r Y; {- [7 u
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// Call IDispatch::Invoke() 1 D7 X, j1 B& N0 ~% q% R* [8 T $ ]7 r2 ^$ z, Y hr = m_pDisp->Invoke( ! O H" Z0 x3 R9 ~6 F0 ?- g pokeID,0 j ^, K b% x5 g2 w5 I U- H0 q
IID_NULL, + y, J( l& B/ \# U/ o LOCALE_SYSTEM_DEFAULT, \7 z; Y. D. r# b. { G4 R
DISPATCH_METHOD, ! N* Z& q- r' Q" ]: D" P7 {- k# x &dp, ' Z( m: g3 ^2 B1 ]2 R- j+ k NULL,/ x2 L/ N$ x8 U! e2 }
&ei, 1 i0 B7 I+ H/ [8 h% ~4 | &uiErr); . E$ C0 B( I% | % }1 a% j# T, C SysFreeString(topicStr); ! I8 ~3 N3 f; F SysFreeString(itemStr); 0 _7 p+ J( a/ i SysFreeString(valueStr);- y. ?$ j* I- A/ M
- r* ]# h r0 H5 a2 L9 o/ G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???* ]0 h) p/ ^/ ^1 Y/ R6 [
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 v3 b3 @5 ?3 {9 o! U & l# _% {9 X' n9 E8 F% f$ {. p+ } [" f8 E+ _; q( Y
2.这是request的程序 * {4 H8 u: ]3 m2 J$ x// Request a value from Extend ; t+ x; A" E7 R* U//7 Y, `# n* a7 b( ` K
// Initialize the variant that will hold the BSTR. Set the variant's" t. R6 x1 k. ?" J
// type flag to indicate the fact that this variant holds a BSTR. Place the+ m0 O8 L+ r( L. K
// BSTR into the variant structure. 6 a. l8 Z) x( U& r$ j3 U / D0 p3 U* o! ?$ m requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); / X) ^! o( Z; J' K( h1 ], I 5 N* V7 [' \# S7 w) T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , N' u& t9 `6 j2 r VariantInit(&requestVariant[0]); 3 O& D5 c2 u8 l, r
requestVariant[0].vt = VT_BSTR;' z7 P/ P) F% U
requestVariant[0].bstrVal = itemStr;0 e4 G+ h1 A/ u+ J; m
7 f/ u$ g2 V% a! r topicStr = SysAllocString((WCHAR *) L"system");4 m4 e% c2 d7 L% K L
VariantInit(&requestVariant[1]); , z- ]9 j+ u. A* k$ F, [ requestVariant[1].vt = VT_BSTR; 5 a2 [5 k' s; ]: m: h _ requestVariant[1].bstrVal = topicStr;( K" g! X0 P' y1 J
" K, Z' Y+ [! N6 v/ a5 N. v// Set the DISPPARAMS structure that holds the variant. & g X( K2 P5 ]. x - s5 d& [. q4 [* f7 d5 R7 b$ K dp2.rgvarg = requestVariant; : T+ g$ D2 ^) @ dp2.cArgs = 2;# |( k0 C7 V) Z% n) b
dp2.rgdispidNamedArgs = NULL;# p; m X4 q* f
dp2.cNamedArgs = 0;/ T5 _# `/ r7 U! E9 X
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var.vt = VT_EMPTY;0 n5 w' Q. ?2 F
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// Call IDispatch::Invoke() . d( m0 m- b: [: Y* j6 L2 Y0 B& |- N ' e* q4 z! X, }5 R. t hr = m_pDisp->Invoke($ k: B( P. K. N" y: X
requestID, # ?2 ^9 \0 W' d! ] \ IID_NULL,5 g: [- d6 n# f0 n/ x) g2 s
LOCALE_SYSTEM_DEFAULT, - n2 E" @+ M, J$ O& x1 T2 C DISPATCH_METHOD, : G4 N N$ x' ^. ^5 T: g &dp2, 2 ~6 w1 m/ ]# M4 p! y) { &var, $ x6 L6 ~8 z" ~- r( K &ei, ' j* w, E+ u T' _ &uiErr);. Y& @7 B7 H3 q( S* @& \: R
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SysFreeString(topicStr); ; {4 A1 Q5 u$ R8 G" x SysFreeString(itemStr); & o( |: Z6 e3 X7 C; J请问该程序是获得extend里面的哪个值?6 x; E; _- ^3 [4 o+ O9 U
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????