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:! A' n# V0 ~ d# V) g
Name = (WCHAR *) L"Poke";. v0 \& D2 {3 L- x! T
5 [) s: K. E9 e6 j# p; h hr = m_pDisp->GetIDsOfNames ( 2 q7 ^! y( u' Q6 A' \6 q. ^4 U. }' l W IID_NULL, // reserved5 O# s1 a' b$ ~ ~9 Q4 u1 t
&Name, // Array of names to get IDs for* P5 c$ `' V( t. g& h s" B; u& F
1, // # of names in the array) X' s0 J0 b7 }8 G, l4 F& Y
LOCALE_SYSTEM_DEFAULT, // System locale9 m% J# G+ L) v& R, p5 {5 m$ [
&pokeID); // Array of IDs to fill on output+ A% V* w# w8 C1 C& |* z' X
8 C1 D- U+ Z/ B. Q7 ` if (hr) H4 j1 b- D% i+ u, p. }
{ 7 R7 f! }6 h7 ?; _/ X+ v7 `, j m1 f MessageBox ("Get Poke Unsuccessful"); ) t% S2 W: D, [& ~; ?; f e return; + T% i, [ u, U } 6 @+ C/ N+ Y+ j: m- k& O$ `4 K* H ' B) Y/ d) Y: _1 v/**************************传递数据给extend**************************************/ Q' }6 W d, u: `% F8 Q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " V& W/ @6 f" |- t 6 t9 m' e h6 c5 [; N, Q# e valueStr = SysAllocString((WCHAR *) L"1232"); E M% Y# b3 ]( \( n$ C VariantInit(&pokeVariant[0]); 8 M( |" o" n& j8 W6 j5 j) R pokeVariant[0].vt = VT_BSTR; 2 e; l, y" N% u9 @) f9 @ pokeVariant[0].bstrVal = valueStr;4 d3 { B+ ^. t, B: N9 t; Y
# _2 m1 y5 O G0 J# ?9 S, p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" ]: K' x' p% Q$ P! j
VariantInit(&pokeVariant[1]); ; _. r' W6 o& G0 `. O$ s B) w" M
pokeVariant[1].vt = VT_BSTR;: `7 h# m$ D9 I4 U2 @3 C: z
pokeVariant[1].bstrVal = itemStr;7 d6 E/ J) G, H( x9 R
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topicStr = SysAllocString((WCHAR *) L"system");, T: P& t1 r# K8 F
VariantInit(&pokeVariant[2]); ) j, G" d' I9 r1 g, d5 h) i pokeVariant[2].vt = VT_BSTR; ; l" @6 ~, O _- W- y pokeVariant[2].bstrVal = topicStr;7 d2 v- b% w1 T+ u. `! ~: J
0 P0 |! ]9 u7 A) H% q// Set the DISPPARAMS structure that holds the variant.8 G, O$ U+ X7 d
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dp.rgvarg = pokeVariant;% p# s2 t( g: b( O: T
dp.cArgs = 3;% z4 u3 Q+ Q" G0 x: B" [+ S( s9 y" y: {
dp.rgdispidNamedArgs = NULL; % n7 y+ f! |! [6 P dp.cNamedArgs = 0; 0 v" K/ ^* Y$ w4 h# z6 ^$ N0 G3 v% F/ Z; C( h$ `
// Call IDispatch::Invoke() 6 T3 d& d( W/ s/ A$ [8 i1 w" C9 E6 W6 E, ]" U) }
hr = m_pDisp->Invoke(2 k$ }# Z$ S: x5 Z1 U' d) l
pokeID, R9 x8 ^4 {+ m* C, o IID_NULL, 1 b6 F8 w+ j& x; E3 A% o LOCALE_SYSTEM_DEFAULT,3 ^* I' l/ g+ ]4 [2 O
DISPATCH_METHOD, 2 J) R* q- m$ j T &dp, K" j* c c* U& ^% I) Z
NULL,% C% F) t( O/ l- C$ e
&ei,; _/ b$ b7 F8 x$ h9 [
&uiErr);: H0 x% i+ f. a; r: ^/ ^/ \: D
. @' }* g- d0 t! n5 A! _# o* y; t
SysFreeString(topicStr);) b8 a1 C# R- j/ ~1 s
SysFreeString(itemStr);" f2 \# s) Y, o' K j
SysFreeString(valueStr);5 U+ c: N$ T w2 z$ ~1 G, k
9 C: c- b" p' d
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???, z; {/ o. y$ p' S: R& j
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???? # B% q0 P# S8 G/ F8 r0 f* [) X Y5 s9 m- n5 [
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2.这是request的程序: O1 w9 ]4 }( Y: H% P7 X. Q
// Request a value from Extend; \2 C: J) G3 a% l0 x
//* m. Y# e* i) I$ T$ n8 U. d) C
// Initialize the variant that will hold the BSTR. Set the variant's T) ?2 B. v; M8 H6 u, x7 p+ \
// type flag to indicate the fact that this variant holds a BSTR. Place the # }7 b5 G. l' f/ R7 \% f// BSTR into the variant structure. - J; X2 z/ t" s% F! g( S' m! |. P0 b2 K
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ K3 k# H1 Z3 U9 @& t/ Q4 K( i0 ~
3 X' Y) J) p2 i9 {1 h" ?. |/ z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, V$ z$ t# e) l
VariantInit(&requestVariant[0]); " b. F6 t& s$ V% D+ n/ F requestVariant[0].vt = VT_BSTR; # r3 ?+ K/ O( c F& P5 d requestVariant[0].bstrVal = itemStr; ' o& b7 W2 T9 I( C( J; V% ^ 4 c! d' v" u( z) f3 u7 Y topicStr = SysAllocString((WCHAR *) L"system"); 7 e4 @. `1 p2 R5 m3 I* C( D3 ] VariantInit(&requestVariant[1]); 0 _6 p, S) R0 q8 x; Q! [7 A! G
requestVariant[1].vt = VT_BSTR; + u( _; c) b$ u2 c- Q. W' }$ r# a requestVariant[1].bstrVal = topicStr;" q' }6 R: P" R9 C
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// Set the DISPPARAMS structure that holds the variant.4 S6 t3 F# K+ S( Q4 o/ z7 S
* B5 e, \& t( R0 L! b dp2.rgvarg = requestVariant; 0 y+ X, A8 j" G. {3 X dp2.cArgs = 2; ]8 [- B Y6 I) g% n
dp2.rgdispidNamedArgs = NULL;5 b! ~- A6 v7 `4 c
dp2.cNamedArgs = 0;5 O5 g* t; }6 G) ]6 O
" O; R: ~: X o' g1 s! X9 |0 ] var.vt = VT_EMPTY; 7 J! v: U, L( `+ Z+ [- j' m4 [ . E# F7 z0 V0 j" F; \. X) P- W// Call IDispatch::Invoke() 2 |4 L. t0 @- i! _- i ?" X: \% u! d. B; R1 e7 I
hr = m_pDisp->Invoke(7 k4 d; ], F& F4 ?2 N0 N
requestID, & {! l# E8 _3 h ~0 Q! p IID_NULL,2 l l! a' r6 h& z4 \
LOCALE_SYSTEM_DEFAULT,1 g7 U. Y3 i( W, \" y
DISPATCH_METHOD,' b3 K3 t2 n% X: z- y/ r
&dp2, _/ R- y4 h2 ` &var, # N0 K! p4 v! S, ?/ H# k4 d1 m7 U &ei,6 [% r K( C+ K. F: T$ T7 o7 V
&uiErr); , { C; u: G& M! P& F6 x4 X, G" F5 A9 [9 C7 _, Q5 N
SysFreeString(topicStr); $ S$ X8 t# m) j; C* x* F9 R7 N SysFreeString(itemStr);+ G( z" ^+ r0 T7 M# p: g }
请问该程序是获得extend里面的哪个值?& F) W4 N# x5 j C- g
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????