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: 0 c% G8 @, \0 t" }0 h" C+ [7 RName = (WCHAR *) L"Poke";+ u3 _ B( J5 ]4 T2 S. d
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hr = m_pDisp->GetIDsOfNames ( + V% M7 O5 v& s4 E IID_NULL, // reserved ( N* @ p# f1 Y+ V( M &Name, // Array of names to get IDs for3 l5 q% \/ q3 F; {/ V6 i8 x) x7 o
1, // # of names in the array% B& S: B, O4 r- Y
LOCALE_SYSTEM_DEFAULT, // System locale1 u4 K+ @2 M. B" W. Q- B H
&pokeID); // Array of IDs to fill on output) M% P" y. o+ }6 V. X" ?* m
& J0 H. r" V+ p% p6 g- }3 [+ K' [ if (hr)% e) b9 J0 r% i: \
{ , }, D+ ]( Q# q) G, G4 T MessageBox ("Get Poke Unsuccessful"); & {0 V. z8 w+ Q) C% B& f1 E return; # @ Z) [6 p( }: F: `' H" @% ?5 ^9 l }- h. E2 \& N( q- _7 Q% x3 t
2 E. X- M) f/ [( I* m8 N/**************************传递数据给extend**************************************/+ a# T' w* m0 R. K9 J/ ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 r& H/ c) \% E; M0 V: P6 K 3 }3 o* p# Q1 C! c0 ^4 |
valueStr = SysAllocString((WCHAR *) L"1232");+ e( {$ J, T- e! F; z! Y9 f
VariantInit(&pokeVariant[0]); ' M4 P" H; D3 h4 Z8 c4 f; d pokeVariant[0].vt = VT_BSTR; ; E2 L4 l8 ^6 [) Y# E pokeVariant[0].bstrVal = valueStr; 5 J/ X, H3 e }2 r$ `4 J : t2 p) R' _7 @& n6 j4 A6 F- A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 O3 |0 t' F! n, u% Z+ ^1 e. b VariantInit(&pokeVariant[1]); 8 \; l9 w' a. P0 r% l( W/ X
pokeVariant[1].vt = VT_BSTR; 1 U y/ Y' @1 h0 { n y/ q pokeVariant[1].bstrVal = itemStr; , t% c4 U' M( G& O `) X R2 _# F1 H8 u& C5 n, N, }; o topicStr = SysAllocString((WCHAR *) L"system"); $ W' G3 x+ g: X1 V$ V3 D; h, { VariantInit(&pokeVariant[2]); 5 O. [ g, \# {$ G
pokeVariant[2].vt = VT_BSTR; `1 g- z* }, p2 B* B
pokeVariant[2].bstrVal = topicStr;: q* R3 O! I2 F' m4 M
" g1 \2 c) u2 A& M// Set the DISPPARAMS structure that holds the variant./ p0 C/ ?6 Q4 M9 @1 e4 d e% q/ ]% S/ n9 o
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dp.rgvarg = pokeVariant;, K M9 I; }3 Z% U7 A0 G6 }
dp.cArgs = 3; - @5 a5 i0 R* w dp.rgdispidNamedArgs = NULL;" J6 A3 Q0 O9 N
dp.cNamedArgs = 0;- z% y, ~$ K8 F- K" Q, }
6 l+ X! J4 F2 J8 X, z' ]7 d0 k2 c// Call IDispatch::Invoke() & @: h6 g( m4 h4 Z) A9 M1 ]; C7 z9 I: [6 z. X. |5 o' K
hr = m_pDisp->Invoke( " D% P6 N6 v2 w' c! x5 s pokeID,; f j7 `1 ~+ }9 @/ y+ ]: T9 w3 k
IID_NULL, - \/ d! y2 }# A, i0 a LOCALE_SYSTEM_DEFAULT, 9 {+ J( x" b5 v DISPATCH_METHOD,% R0 `+ v7 y' y- e% S: w
&dp, / k2 c; r$ i& D. @! W$ v5 Z2 P NULL,# b. B7 v5 M! Q
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&uiErr); % p- o+ m- z2 m6 l6 P" Z3 y2 T% P3 q, y* ^4 C! R- G
SysFreeString(topicStr);% U% o' i- A+ w
SysFreeString(itemStr);6 z x6 g U) C: a7 I, x/ {
SysFreeString(valueStr);8 m9 s: z8 Q9 {0 R& c4 d
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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??? 8 j& p% p0 z0 f" _1 ]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???? ! K2 z5 Y+ G7 V3 E; l, U' w3 i" E% N$ O; l1 Q4 S/ B1 v
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2.这是request的程序9 M1 A: k9 K# \, _! ]1 ^0 s) L2 Q
// Request a value from Extend4 G/ R8 w5 i- ^) L1 q* f0 \
/// l9 {2 n; Z% L
// Initialize the variant that will hold the BSTR. Set the variant's n- g0 w; d. e7 ?
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 \" l* L6 X0 \4 [9 H, [// BSTR into the variant structure. 4 U# g2 w7 x R: k2 q) e+ t, E 6 R, k9 n4 X) K; k, M( y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); a) |1 O& v/ D% h' a+ ] + s: W6 y9 [1 N4 y: } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 \: I( m) e& S# Z( O1 P+ |' y' O VariantInit(&requestVariant[0]); ( D0 s5 F( B6 Q2 e% F8 G; Q9 E; u requestVariant[0].vt = VT_BSTR; {7 f' X! { G$ L" |( t B
requestVariant[0].bstrVal = itemStr;0 [8 l7 f% L4 ^) }& t
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topicStr = SysAllocString((WCHAR *) L"system"); : Y! b; P) Y+ {8 }% _: }3 m8 b VariantInit(&requestVariant[1]); 1 n3 x. j- s0 M& A! w* w
requestVariant[1].vt = VT_BSTR;! u' V0 { P& {5 I' V3 |
requestVariant[1].bstrVal = topicStr;1 ?4 D; O: K5 |0 V
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// Set the DISPPARAMS structure that holds the variant. : k% Y) _0 d# H" E+ I3 B2 O2 Q7 \6 C' e+ ?+ T1 k3 R" h- Q
dp2.rgvarg = requestVariant;( {0 |/ d3 D& R3 U
dp2.cArgs = 2;, o) q+ X& O+ a# Q4 c
dp2.rgdispidNamedArgs = NULL; " X/ g7 l+ T! K- f+ z dp2.cNamedArgs = 0; 2 f2 s2 ~' s! w: U0 d7 @8 p * h" K9 m: Y h! W% S var.vt = VT_EMPTY; - D, o N/ T1 A: H: y+ j$ u1 ?( M5 a+ z( L: b! y9 [) |
// Call IDispatch::Invoke() * @3 j! s6 m; M& k ; E9 C1 `" ^# H7 T hr = m_pDisp->Invoke( ; B. e. m4 G' f' i2 e1 @: s, | o% g requestID, " ]( n4 T4 F# ~" m$ [% a% h IID_NULL, 1 N3 I& W0 s! z# X+ v% Q/ b LOCALE_SYSTEM_DEFAULT, ; I) z$ T3 F% X9 c" c DISPATCH_METHOD, 4 a/ A+ I9 _0 n- f! L7 T &dp2,# r. K3 \4 y3 F- I. Q b- h( {
&var,( t2 |/ C2 t) `& u# C8 \ f
&ei,( {% @2 [( m5 r: g
&uiErr); ~" }0 H% x: K " a8 D2 T+ Z/ |1 t SysFreeString(topicStr); ; o7 k c5 f0 A7 r) q L, d$ x SysFreeString(itemStr);3 k$ [7 _! w4 Y1 V1 H5 o
请问该程序是获得extend里面的哪个值? & P, j9 K* s% w& O9 p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????