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:7 i% b# J0 a! |& F
Name = (WCHAR *) L"Poke"; ( `7 u: I) P" e$ e$ N% R, h - C- A7 W( S* l
hr = m_pDisp->GetIDsOfNames ( ; T" j- W* i. a7 q IID_NULL, // reserved3 M6 W, v( r2 D% b# N
&Name, // Array of names to get IDs for Q, ]1 T: q0 u: ]" Z7 P: @ 1, // # of names in the array 9 m# q$ ]# u4 g" n LOCALE_SYSTEM_DEFAULT, // System locale + M+ N* A7 s4 ?7 U" n& M8 j5 \ &pokeID); // Array of IDs to fill on output ' d4 e9 ~* w3 D9 ^; M) h3 k % S5 G$ b$ W1 s, f. O if (hr)1 X8 f; _6 E- A- J K
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MessageBox ("Get Poke Unsuccessful"); 6 {. E- O: F4 R4 O return;. K: z" n; Q& D0 n
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/**************************传递数据给extend**************************************/9 ?$ I$ e# i3 a. X T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 i' ]; ^2 Q+ _8 F" t
4 J: l5 d/ A/ e$ E$ w( a$ s' @ valueStr = SysAllocString((WCHAR *) L"1232"); 3 }& _2 Y. c. M9 p! }9 O, @ VariantInit(&pokeVariant[0]); 6 z3 ^ s4 P/ U4 @& M2 [- @; A$ q4 @
pokeVariant[0].vt = VT_BSTR; 5 d$ A6 T- R4 S( v pokeVariant[0].bstrVal = valueStr;$ q8 N( f; b* `+ |! P4 p$ n/ o% T, e
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 q; s$ ?8 |6 P VariantInit(&pokeVariant[1]); & o% D* [* R B pokeVariant[1].vt = VT_BSTR;3 [- A Y6 n0 e8 Y4 d v
pokeVariant[1].bstrVal = itemStr;: Y# f/ ~% H4 Z2 D* Y
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topicStr = SysAllocString((WCHAR *) L"system");( n* ^* h7 ?. \: X
VariantInit(&pokeVariant[2]); . f; b# F; w* y7 |' Q$ E% ?$ W
pokeVariant[2].vt = VT_BSTR; c. a W& L) L& a+ N* L# R
pokeVariant[2].bstrVal = topicStr;: |: X) i1 k7 u. p. R7 H
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// Set the DISPPARAMS structure that holds the variant. 8 \/ |, _9 U- e3 e; b& e6 L , j2 q5 k& B) p. k! U$ Q3 M7 M& g dp.rgvarg = pokeVariant;: _3 D* I; C9 `. v1 J) J2 M! z
dp.cArgs = 3; # g! T. n: c, S7 Z dp.rgdispidNamedArgs = NULL;7 |/ W. W$ j+ A% Z2 h2 u
dp.cNamedArgs = 0;. L/ Q2 H: h4 m& U
F6 R8 x* W6 k6 j, E; w4 R @// Call IDispatch::Invoke() $ Q( C" k) l U, |$ \* b4 g2 {7 V, [/ y% y; q
hr = m_pDisp->Invoke(; k2 v6 r9 b0 R5 I" b9 r2 \
pokeID,4 ~' A9 U- J6 r' |, G& E5 r
IID_NULL, 5 _; P1 Q1 i6 i" j6 D4 ^ LOCALE_SYSTEM_DEFAULT, ' i, R* G) X2 f; R# b8 D Z DISPATCH_METHOD,1 S% U5 Y2 K. M% p% @1 F4 ^
&dp, 7 x \3 Y, g8 Z1 |+ \ NULL,% \7 r5 a* C2 Z) `; A9 [% q% |
&ei,4 E% L- Y) B; w% m
&uiErr);5 R5 W4 _. g) ^ v
0 ~, c( z& R9 y) {
SysFreeString(topicStr); & m; _% E& p0 W1 m1 O' c* @ SysFreeString(itemStr); : H f4 r! s! X3 w& K4 ~( P3 f9 X: U SysFreeString(valueStr);% R- c7 r1 ~: ]6 V
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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??? % Y( {4 R+ a3 |3 {/ \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- |3 R k$ n: v
$ S* P# Y: h0 d" A& @- g( C( V 2 q& X* _- t, i5 I% ?( ^2.这是request的程序2 K- {( w8 o, c" [" k
// Request a value from Extend7 V9 Z: X7 W* r4 R% N: g4 l
// + _# e$ h, T2 D2 w// Initialize the variant that will hold the BSTR. Set the variant's6 X: p$ a' |$ p+ r1 h' ?5 A3 [
// type flag to indicate the fact that this variant holds a BSTR. Place the # m8 q+ }3 D) g. l' ?! O' H// BSTR into the variant structure. , y, Z) q! D/ O* G0 S* R( ^/ Q" c- n2 p! J5 {4 a/ S
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! [3 _* n& v! c1 [ Q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 @. z) N: j: A Y VariantInit(&requestVariant[0]); # ?' \" ~. E+ W5 S requestVariant[0].vt = VT_BSTR; ) }) Y+ D) _2 L# \3 P) k requestVariant[0].bstrVal = itemStr;7 Q/ m$ t1 n4 Y$ v
! A" T: t" A r2 j/ u6 r8 o- r topicStr = SysAllocString((WCHAR *) L"system");& j5 {4 q" I% ~4 `
VariantInit(&requestVariant[1]); 0 J# e6 V, T: p* P% L# F
requestVariant[1].vt = VT_BSTR; * W, X( w2 Z7 d2 ^, |, [ requestVariant[1].bstrVal = topicStr; - \" O# @, t$ \ , v2 c0 L7 j! D) \5 I& Q! r' K0 e: G// Set the DISPPARAMS structure that holds the variant.3 Q# X; z) R& F: C' v' l
7 r! T: Z h6 ?; m# v. X2 ]1 ^ dp2.rgvarg = requestVariant;# x8 {' X4 k/ E- H& f
dp2.cArgs = 2; * j$ B8 L2 g a8 `0 i* b v% r% Q dp2.rgdispidNamedArgs = NULL;3 d4 d+ a8 [2 h/ y" X, `& z8 g
dp2.cNamedArgs = 0;* b5 Y3 |3 _: I9 U3 S
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var.vt = VT_EMPTY;5 S! V, E6 Z; T* D, V- _
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// Call IDispatch::Invoke() $ N5 x6 `( R- p7 J. l6 r6 S6 k4 g4 w; C# T+ Q
hr = m_pDisp->Invoke( ; P1 k" {" h) N! i* n requestID,. p6 P% W$ y0 F) h( L. e' { d
IID_NULL, 9 ^5 Q- I) K8 p, M* j LOCALE_SYSTEM_DEFAULT,0 [ j. ]# L$ a# b; `/ U& }+ ~
DISPATCH_METHOD, % n" b5 X/ ?, i: o &dp2,. l. l3 C' b+ |
&var,3 B2 K3 t$ l7 @& w
&ei, 0 N H& z: J3 D( I &uiErr); 2 n+ y- g9 m& T2 u0 [2 P ' V* \3 a3 k& ^ SysFreeString(topicStr);( d$ P& r% z! V9 C, m, g
SysFreeString(itemStr);/ e8 o1 o0 y. i9 e2 z
请问该程序是获得extend里面的哪个值? 2 x( s N- Z) y, ?: W; ?9 o( 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????