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: / Z" C1 |* Z( U2 y% l& ~' L: _Name = (WCHAR *) L"Poke";( S, k7 V; d5 V. ~8 W& Y' ~1 O
: H5 B7 E/ C9 e hr = m_pDisp->GetIDsOfNames ( ; h, t0 e/ q( Q( ~3 h% @- a IID_NULL, // reserved3 n/ J" y. ~# B" R5 D
&Name, // Array of names to get IDs for + h0 [ w& f/ o" g& h7 f 1, // # of names in the array * }% H* {9 N4 ?' {4 U" m LOCALE_SYSTEM_DEFAULT, // System locale \7 P* L+ S& @3 f( c: ?8 V( M
&pokeID); // Array of IDs to fill on output: _% e$ g) u# z8 Z& X5 L
+ N. v4 Z* V3 G: _$ s5 ^. n) f+ I if (hr)# S% f! ~2 V, {2 c# S. r$ ^+ d0 s
{ 9 v: Y& n8 ~6 P' W2 j4 U7 I8 n MessageBox ("Get Poke Unsuccessful"); ; c: J. D7 |0 b7 t return; . i0 Y( I: _5 u6 ] }" y, f. v1 p, g& C
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/**************************传递数据给extend**************************************/# z7 x& \6 j5 u$ ]
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 L8 C/ S! a( [! ^ 2 P) i, Q& O! r, n8 U2 B
valueStr = SysAllocString((WCHAR *) L"1232");1 e3 H5 q' _0 r: i, X4 p$ _
VariantInit(&pokeVariant[0]); & |% ?* P8 `/ p+ M; l
pokeVariant[0].vt = VT_BSTR; ' A7 i N" H+ n3 J# g3 | pokeVariant[0].bstrVal = valueStr;* s8 v: L9 ?2 Y6 C5 {
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ N- v+ P9 @* d2 l6 b* l+ a5 D5 l; Y8 p VariantInit(&pokeVariant[1]); . G9 e* r3 R, E: n" T7 W pokeVariant[1].vt = VT_BSTR;6 O; N t8 b3 I4 H5 N$ P. m
pokeVariant[1].bstrVal = itemStr; 8 ^6 |. P, H/ g& X% b2 {5 v" O" w, D) a' O" w/ K) P6 W0 A5 ^
topicStr = SysAllocString((WCHAR *) L"system"); , b3 F( q* [6 F2 ]% t- n VariantInit(&pokeVariant[2]); 6 t# {' w# s4 C+ G1 |, D8 J' L$ N pokeVariant[2].vt = VT_BSTR; & b. _8 m6 ~4 g, X8 ] pokeVariant[2].bstrVal = topicStr; K- G* a& V2 y: _$ y " ~2 [+ _0 k9 X// Set the DISPPARAMS structure that holds the variant. ( N/ D- n l- p0 `3 J( S- V8 J: W# y; i( }9 ?0 p7 b
dp.rgvarg = pokeVariant; ' ]7 Z% {0 {- Z0 T9 x0 l y& w dp.cArgs = 3; 4 P1 ?9 u3 C% w6 { dp.rgdispidNamedArgs = NULL; # d- c, N; w; a, n& R6 I dp.cNamedArgs = 0; + _: \: j3 u, ~( U* e' h; f% D4 `0 G- H6 r9 n1 x( p ~
// Call IDispatch::Invoke() 8 O- _% F6 n7 _/ ~7 ~ $ b" v: e; |5 ]) i5 Y6 { hr = m_pDisp->Invoke( / g! v, u9 I% s8 h! w' t" k pokeID, / Y5 m6 |' ~, y+ s5 w7 M: H% e IID_NULL,! D% w! y$ O& t' m' s+ O
LOCALE_SYSTEM_DEFAULT, p1 B5 \1 D3 _/ ?
DISPATCH_METHOD, 8 d' R1 q4 |4 R* N' U( l &dp, % P; p7 T7 h: I- P) { x* a+ J! { i NULL, & C1 A5 z0 n8 z &ei, ) M2 T7 ?7 i% f; `6 t &uiErr); ) z8 K9 u0 Q- `; I- ]$ [6 s5 {1 m# E# ~% l0 N
SysFreeString(topicStr); , p. D8 v7 X9 T5 V SysFreeString(itemStr); & {' l6 U0 s' K/ [5 Q6 J1 H% S SysFreeString(valueStr); 8 d/ h8 P' v* h 9 x+ v A2 Q3 c P+ e" i5 v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??? # P0 ]3 s4 O! m5 s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???? ' U k* S% O. z: ~+ k1 g8 W" T+ Z
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2.这是request的程序 $ E" o( }( \. y) f! } u// Request a value from Extend ; Z' e/ t7 ^* c0 y- r1 a//# X R; z1 x* R' T g7 r: E. C2 S
// Initialize the variant that will hold the BSTR. Set the variant's 5 }& T; I# A/ r/ N& W* Y" p0 H// type flag to indicate the fact that this variant holds a BSTR. Place the1 N, [: a+ r9 X* c
// BSTR into the variant structure.7 B3 M% m+ @9 F+ g7 Z {
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 a* x6 H4 U) `2 }
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 z0 c1 j% m" }9 E VariantInit(&requestVariant[0]); 1 w1 v' }* q" q+ \! d0 Y. d) v
requestVariant[0].vt = VT_BSTR; % z8 G; P1 S6 U d: e+ M requestVariant[0].bstrVal = itemStr; ) O5 S1 _4 L& H9 \ 0 `% U& f! `8 J, L8 t! x/ k topicStr = SysAllocString((WCHAR *) L"system");) K: S' X9 g+ E/ \3 t8 v/ g
VariantInit(&requestVariant[1]); - V* J- R7 g+ u( h9 A
requestVariant[1].vt = VT_BSTR;9 q5 s; W$ U6 o0 i& ]) G
requestVariant[1].bstrVal = topicStr; % e- F6 K S5 S, b, Y9 |& D. Y- v$ ^5 E
// Set the DISPPARAMS structure that holds the variant./ A$ x9 `$ V2 T# I2 j: g
/ z8 Q0 J% [/ E2 [8 G, U3 l% ?
dp2.rgvarg = requestVariant;# N, U/ [& ] U
dp2.cArgs = 2;) ]6 |. g% I6 B
dp2.rgdispidNamedArgs = NULL;4 ?+ j# k0 ?! Y f, u
dp2.cNamedArgs = 0;1 O/ p7 [$ S! c9 h" y" Z3 k8 n
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var.vt = VT_EMPTY; 6 J" ?; T. q, } d1 e& D# j ( _# P, r* S1 H; B! b// Call IDispatch::Invoke() 4 a- @' V0 G4 r5 E* @. n O9 [ ' a) j! Q' F' G5 _6 L1 U5 n" _/ i hr = m_pDisp->Invoke($ s# S8 h% C4 _& z1 P
requestID,* [1 w; I" O, K+ r9 N( [; i
IID_NULL,6 w5 O0 ~3 ~* s1 ^
LOCALE_SYSTEM_DEFAULT, 6 {2 N! _' G @2 h9 Y DISPATCH_METHOD,1 w% q: b% W& [4 g! k$ m' G
&dp2, # e3 ?. K# {2 a/ J &var,; Q& ]* v1 I/ K, e6 @
&ei,0 ^# V C# u; b( j2 K0 K
&uiErr); ( Q4 w$ [/ F- h2 R : F: @% P' a# r6 U. ?+ | SysFreeString(topicStr); - w+ M h7 ?8 G0 d SysFreeString(itemStr); ; j* z% |0 a B( c请问该程序是获得extend里面的哪个值?- v/ w6 Y$ U, a/ W% F( 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????