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: ) v& i9 {# J3 c# jName = (WCHAR *) L"Poke"; & X6 `$ [. g4 X. ?! e9 M a8 N+ s. P5 ^6 {
hr = m_pDisp->GetIDsOfNames (/ P7 M+ R F4 `
IID_NULL, // reserved" U9 } U& s' r$ J8 Z; s
&Name, // Array of names to get IDs for. C. h2 H; O; u+ {9 I
1, // # of names in the array ! x2 ` w% \* }6 _3 F LOCALE_SYSTEM_DEFAULT, // System locale4 x0 T$ _5 I% u) I; m5 o( A3 O/ T! x
&pokeID); // Array of IDs to fill on output + {8 z# j C4 b: S1 G3 v; x* T( ^ ) Z- g' o; N' ?8 |" d if (hr)2 ?+ W5 s k8 @ |% q! Y9 t5 F8 h& ?! L
{ ( P! K- I6 \1 H$ B. |" E3 s8 b MessageBox ("Get Poke Unsuccessful"); . t' u1 J- c9 I2 F: l5 i' p/ W return;* z/ `- g( \0 E* v8 ^9 k
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/**************************传递数据给extend**************************************/5 C" w, k. {5 V/ s+ W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) h) A; S* f( C$ g& z$ V
5 l% q5 a! ~: ^) e5 q T+ l valueStr = SysAllocString((WCHAR *) L"1232"); , @) X8 w* n. r7 Q* U, S" r VariantInit(&pokeVariant[0]); 8 N4 V5 F" [7 H/ U! L; y# _
pokeVariant[0].vt = VT_BSTR;- c" c$ R) _7 [% h9 w/ [( E0 v& [% c
pokeVariant[0].bstrVal = valueStr; 7 W1 M2 G5 j) u7 C; S: l9 P/ @5 a& Y, }4 p
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# v# n5 Y( B$ L7 c
VariantInit(&pokeVariant[1]); 3 X# J) I' `* U7 x1 H' v pokeVariant[1].vt = VT_BSTR;- c$ |; M Z: U, v8 C' k5 d7 i
pokeVariant[1].bstrVal = itemStr;) S! o! ^ e z. i6 _, M
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topicStr = SysAllocString((WCHAR *) L"system"); 3 F, }% U: z8 J: V" i+ d6 o( J VariantInit(&pokeVariant[2]); 9 p; }8 r! t8 K+ d- [! A: X# g# C3 j pokeVariant[2].vt = VT_BSTR; ( Z: g! f7 J q pokeVariant[2].bstrVal = topicStr; + u. T3 M* o# u4 d/ X( `; V h8 j$ F7 j# I/ y8 {
// Set the DISPPARAMS structure that holds the variant.8 V! X' |: H. H/ _* q/ a) A8 j
' k' e+ D8 R/ t dp.rgvarg = pokeVariant;+ A T9 m% O: a6 T" x! {
dp.cArgs = 3;0 p) P8 y t' W* _4 T
dp.rgdispidNamedArgs = NULL;" ~6 m/ Y& t& t0 `5 q' _
dp.cNamedArgs = 0; . V4 x. B" y" S. g) U' a, W& p/ a7 H: _4 h6 o V) @
// Call IDispatch::Invoke() / x: e4 j! [- ^- O. A6 K$ [8 s3 D* L4 b" R0 z; A) q# F: Y6 ^
hr = m_pDisp->Invoke(7 s/ y0 M s7 i8 a( R+ r
pokeID, 9 [& l9 U8 T0 h7 ^" b5 S6 ] IID_NULL,9 Z+ U4 X# G7 i0 J
LOCALE_SYSTEM_DEFAULT, 0 y- S3 h% q, I; R F9 r6 X: F DISPATCH_METHOD, + e0 i, H: }0 M4 a2 E0 T" v &dp, ) s8 k. E5 L! R: y3 ?- }" U NULL, 2 C2 T* f- w4 P4 W4 t &ei, / J& E, i0 t- \ w1 ` &uiErr); & j$ k2 v+ k# Y' x+ g1 S/ A7 I; u9 B) s9 ~9 Z2 B9 W
SysFreeString(topicStr); 0 q$ l7 |4 j, y5 l SysFreeString(itemStr); & e1 n5 G" O' B) B9 J SysFreeString(valueStr); & n7 P/ Q5 W3 m( k % ]8 a- Q, M0 Y/ I7 H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??? & w K: Z" F- }. z( B" A, U1 E, D j# M( Z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????4 Q# E- _ c! J$ C/ @+ w
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2.这是request的程序- @6 ?. E) V5 v4 e4 H, U) ]. _4 ]3 H
// Request a value from Extend ' s2 Z6 w( Y1 l; [// & [5 T, N+ O d1 i2 `4 d/ ]( H// Initialize the variant that will hold the BSTR. Set the variant's. B+ p& [# M& `. b4 U
// type flag to indicate the fact that this variant holds a BSTR. Place the+ P/ R( J% `# y) ~9 R, H
// BSTR into the variant structure.& Z' H" ^' d: f3 q# g0 b2 n
0 g% ?4 a8 Y8 j5 }( O requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : k `9 i4 ?' ?, ^4 E T9 V " @4 c- h) D0 V( ~0 M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# A9 f! P5 S; o' f8 H& e3 e! F& l
VariantInit(&requestVariant[0]); 3 B7 M5 c/ o _
requestVariant[0].vt = VT_BSTR;: z7 d3 L% [7 b; G6 q$ s9 w$ ]0 A
requestVariant[0].bstrVal = itemStr; ! R9 S. t7 R! i2 Z3 W 7 K1 w( x* }. j' H topicStr = SysAllocString((WCHAR *) L"system");5 }+ P. M% a0 b, |: Z
VariantInit(&requestVariant[1]); 9 j3 R2 i; |* Y% M& r$ V/ U7 b. ^ requestVariant[1].vt = VT_BSTR;1 n! ~# z6 w/ A6 e" `/ _9 C0 @0 L
requestVariant[1].bstrVal = topicStr; 1 v- i0 I& E& s' t3 K! w7 ~+ B" y4 O
// Set the DISPPARAMS structure that holds the variant. 0 S3 l8 D: [, W: g5 n3 o, X ' ]( ]9 S- l( i# t dp2.rgvarg = requestVariant; 2 w8 p6 T& l: J( y- @. f( \ dp2.cArgs = 2; + X$ s H3 K n) O dp2.rgdispidNamedArgs = NULL; 3 p/ v6 i) D E, V6 U dp2.cNamedArgs = 0; 1 ?% u' K |6 Y; h- |% u; i$ p! \" A3 t: l0 m0 E- _5 b
var.vt = VT_EMPTY; b) x1 A7 Q+ f; [, s: \* A6 {. v) H
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// Call IDispatch::Invoke()3 E; R! N: F9 p8 ^! i5 @
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hr = m_pDisp->Invoke(6 _. r. W% q9 R% N5 l
requestID,; ~" |. M3 H! X0 j/ i
IID_NULL, ' l a% S0 ~8 N+ r2 N LOCALE_SYSTEM_DEFAULT, 3 Q8 P) k# t% }) P$ A* m DISPATCH_METHOD,2 b: S3 `6 I+ a% t
&dp2,* B: c: i6 Y. [! M8 T2 N7 O" g
&var, 4 ?" w5 A% G% ?' m! j &ei,* K9 S8 }# X% K% n* G9 N
&uiErr); + ?0 T" p; E1 I. G' ? I6 Y: R) M" a( U* a* _# l4 D X
SysFreeString(topicStr); ! o9 v2 w9 w# X- j, L4 p SysFreeString(itemStr);1 x7 z0 D# r9 s; D# R; t, S
请问该程序是获得extend里面的哪个值?. C% p3 m* O0 P5 G+ i2 T% ~
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????