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:$ G& V( C+ B, R2 p4 u, D
Name = (WCHAR *) L"Poke";) v9 J8 f4 e+ M8 l' I' ?
; H8 m R2 J8 d4 V1 z4 \ hr = m_pDisp->GetIDsOfNames (% P: q% N$ r0 `9 H) I
IID_NULL, // reserved3 x, _5 a$ g2 M: B, r( R' ^
&Name, // Array of names to get IDs for + N' l- v7 F2 ~9 V7 f 1, // # of names in the array . A0 n1 r. i/ V6 _* t1 T8 h LOCALE_SYSTEM_DEFAULT, // System locale( O$ ~. U7 p c+ Q' b2 b
&pokeID); // Array of IDs to fill on output% M e0 ]0 n) P" \+ h; |
5 L3 t7 y' {9 R; x; g if (hr) , Z' y/ w6 |4 @# K {" T4 h P! f% `$ X2 o t
MessageBox ("Get Poke Unsuccessful"); ( T* @" z1 w! f, q0 I2 V6 s return; , B6 q" A4 D" C# Z1 p } " l+ G# _) C$ l! D3 P9 N2 i" Y 3 ^6 l0 f; m( P# u% H7 T! O5 M6 S/**************************传递数据给extend**************************************/( }6 c$ ]9 M/ S, b5 `* a3 y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ i! a: |2 Z) j3 q" }$ n: P
, J% S7 {+ z! H+ [% e valueStr = SysAllocString((WCHAR *) L"1232"); 3 s$ ?2 D& T6 v9 F; c VariantInit(&pokeVariant[0]); ! L5 v. z- }2 {* s7 K1 o
pokeVariant[0].vt = VT_BSTR; . ~4 R% P: n% }" |5 w pokeVariant[0].bstrVal = valueStr; , i/ o' g0 e2 j$ i9 b1 m( P0 _+ v" }0 W; V" Z* O6 R
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 y9 J5 p1 v a1 A9 h- H VariantInit(&pokeVariant[1]); 7 `! {. a* A( k7 L- H& y- K" @8 n
pokeVariant[1].vt = VT_BSTR;! w# \, @+ d# s& f" ?
pokeVariant[1].bstrVal = itemStr; + K5 d H0 C! P8 ]3 D& r" v" u, ~+ v. {; J* J
topicStr = SysAllocString((WCHAR *) L"system"); ' S) O+ Z: d% y VariantInit(&pokeVariant[2]); & n3 D* U& h5 c) d% e( c
pokeVariant[2].vt = VT_BSTR; , T2 [8 S& \+ u pokeVariant[2].bstrVal = topicStr; 7 m# G) ~$ p, \/ I6 w% S( Y1 J# Y/ o* S' L: ?' U
// Set the DISPPARAMS structure that holds the variant.' ~: D! V' u6 [( Q
- ^8 {7 ^7 ~5 @ dp.rgvarg = pokeVariant;* y: a+ Q$ Q8 m4 U
dp.cArgs = 3; , d" Y& y n. m8 {4 T& a, I dp.rgdispidNamedArgs = NULL; : a2 i1 R; o5 k# C, q7 a( e dp.cNamedArgs = 0; # _: h9 {/ U8 J6 c6 Z* } 0 t7 _7 H o! }- s// Call IDispatch::Invoke()' P6 `8 \+ q+ F- A( s* Z2 M. j1 f
1 S ` b9 q# E3 \; n7 d hr = m_pDisp->Invoke(: p- W1 s) S2 [
pokeID,) ^' J; J& _7 G: k& z6 ~7 ]0 C
IID_NULL, . \$ }) ~9 [2 W LOCALE_SYSTEM_DEFAULT,/ V- \% z" k h
DISPATCH_METHOD,0 ^2 ~1 O3 _( o+ ~
&dp, R9 ~2 l9 H- E2 x NULL,1 l$ v9 Z& z& e# }; J$ H
&ei,% v$ c ` h$ R' F1 X
&uiErr); 5 }; B U: I! g% ?$ D9 L" B . N$ A% `3 d: } SysFreeString(topicStr);" _8 H% `3 Z& j4 f6 P
SysFreeString(itemStr); 2 g( m/ d) X$ u' ?$ O' y5 W% T. B SysFreeString(valueStr); ' F: w. F5 q$ [) R9 ] ) K3 i z9 [$ p+ A9 w- h- j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??? # X6 @( ^" Q5 s+ o+ 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????$ h! n6 x# K. F
- W2 i; h" k+ g3 h3 A( f: H+ F$ Q% ~0 X/ K/ J+ e& T, N3 |
2.这是request的程序 ' \$ Y9 R3 s2 b; s& e( f- B// Request a value from Extend 8 u) R8 L! B$ }4 B7 n- _// ! ?, _/ j1 v* T- k// Initialize the variant that will hold the BSTR. Set the variant's ; v0 p) }) t: w) C+ @// type flag to indicate the fact that this variant holds a BSTR. Place the3 z9 u7 r. |7 V4 l( X
// BSTR into the variant structure.7 M! }- ~7 m+ H4 W
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' H4 ]! Y1 V, D1 }1 U" v6 K 8 n6 n. e* D! G+ K: ?
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 N) f# U) m* M, l/ @& j* q( t
VariantInit(&requestVariant[0]); 4 a: _- S+ z! c% n( H+ J
requestVariant[0].vt = VT_BSTR;0 N$ v4 W) K" S5 C k, a+ M6 g
requestVariant[0].bstrVal = itemStr;# i6 l( h- A' \
" n0 |) W/ B; x; ^ topicStr = SysAllocString((WCHAR *) L"system");. q }8 [. ?) ~: ?
VariantInit(&requestVariant[1]); ; C& \( ?+ v1 {; J, q+ ~
requestVariant[1].vt = VT_BSTR; , E2 o5 h( L! M0 U2 j2 i requestVariant[1].bstrVal = topicStr; % z s6 m8 A) O6 x ; H# r- S. h0 s; v// Set the DISPPARAMS structure that holds the variant.3 P" G2 o- ~8 Q7 o) J
" @; ?# d' _7 K dp2.rgvarg = requestVariant;6 L/ r2 q" H( f% g
dp2.cArgs = 2;9 e" x! I1 B- \6 k0 x+ R W4 c0 |) u
dp2.rgdispidNamedArgs = NULL; . M- T' q$ s9 N+ H6 T dp2.cNamedArgs = 0;/ Q' y# t/ \: H1 ]. Q5 O" _! Y! J! _
7 N# c2 c3 U' c! G. Y& Y6 Z; p var.vt = VT_EMPTY;8 j. E. q1 y* ^) ^/ J2 m
8 X- w& y: I% J" a0 ^* l// Call IDispatch::Invoke()7 V ~0 R# } ^" P; Y
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hr = m_pDisp->Invoke( & G' j) o; n. e' K/ z requestID, 2 l/ v4 A& x9 }/ m q IID_NULL,( f% ]6 H1 }/ i2 {$ ?" m
LOCALE_SYSTEM_DEFAULT, ' U0 U1 r5 `: U0 _( e DISPATCH_METHOD,5 `1 Y P% ~% w$ Z' A, q6 T: I& O
&dp2, 4 [( o% k8 ?) w2 W &var,# J4 U/ R4 ] ?
&ei,' x3 t2 j- L* s+ q% x" o
&uiErr);0 P# w& q0 S4 g" O/ E5 v
2 m4 v) \1 b4 \' @% L& M* B5 U4 v# N
SysFreeString(topicStr); , ]0 \$ ?& L: t) o9 ^+ J SysFreeString(itemStr);5 {/ \. D& E1 p; m* k
请问该程序是获得extend里面的哪个值?6 B& Q4 \! U; ]8 b* r" E/ q
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????