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:- c2 d, X# D S7 d
Name = (WCHAR *) L"Poke"; * S+ ^. q6 N9 y! w( o& I! D! C 6 B0 F) Q. V# w0 P+ `4 c
hr = m_pDisp->GetIDsOfNames ( * i" ~+ H; f" t9 A% N IID_NULL, // reserved # \2 Y/ W! h6 t. V; g &Name, // Array of names to get IDs for; L8 q/ k! q% t
1, // # of names in the array) i. N7 \4 Y1 q- S% T5 j
LOCALE_SYSTEM_DEFAULT, // System locale & r* K$ Y5 P i3 q &pokeID); // Array of IDs to fill on output) `& X" U* b) T6 S K: I
( ^( |2 I& @ ]- Z- d* G if (hr) 3 L1 C+ ?7 u" a3 y+ c+ _ {. P/ v, u0 J( r; J3 _: M4 P
MessageBox ("Get Poke Unsuccessful");5 X* i! u* x, }
return;' B) Y3 }% l4 c) V
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/**************************传递数据给extend**************************************/ / [5 j& g: y" u6 m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - g3 e; u# G' V3 S( e" u+ B- W! ?% X . z" |: ?. P7 ]7 }$ N5 I$ C valueStr = SysAllocString((WCHAR *) L"1232");1 C& C3 @$ z {) D0 ^# D
VariantInit(&pokeVariant[0]); 9 K+ P" T8 N) I. w% P pokeVariant[0].vt = VT_BSTR; 0 l: v" T* A* T$ \; z0 E- [3 I/ A pokeVariant[0].bstrVal = valueStr;4 I4 _$ A1 w' K
0 M& K1 o) {* R! j! g' l, a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - Y: _3 H/ K, I. w3 ?9 Q. X VariantInit(&pokeVariant[1]); 8 R. @( q) `& ~ F pokeVariant[1].vt = VT_BSTR;0 x+ y l+ w8 I# p1 H9 }* `& D2 |
pokeVariant[1].bstrVal = itemStr; ! e! s2 t3 S/ u4 g3 t" `6 w6 f7 B4 n0 b) z$ K8 l% l4 @8 ?
topicStr = SysAllocString((WCHAR *) L"system");2 c/ W5 b1 g1 j, b4 l2 z
VariantInit(&pokeVariant[2]); " m5 h+ w* Y) G7 f+ X. @2 x
pokeVariant[2].vt = VT_BSTR; - s! _3 D6 J* I- \4 c pokeVariant[2].bstrVal = topicStr;$ y0 r' [9 q0 }6 g
9 u1 N$ Q( M" O: ?! i// Set the DISPPARAMS structure that holds the variant.0 x9 l/ m, q; D' G. S& O; a! B% H5 U
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dp.rgvarg = pokeVariant;% T" `' O9 J+ t5 n, n5 F) M
dp.cArgs = 3; " a; a! D( g- V dp.rgdispidNamedArgs = NULL;8 A* O% o# X5 [# v! E
dp.cNamedArgs = 0; : G5 b/ ?( F1 x0 j3 p$ ~2 T! _* w: i8 U7 A' A
// Call IDispatch::Invoke() 2 V8 |3 m) s& _, z" R 5 m6 b$ ^. z0 c9 ]- S6 M4 J hr = m_pDisp->Invoke( 7 f+ i. }% ^" c9 N7 Y: d pokeID,- I8 H7 s' c: U$ b% }
IID_NULL, 9 A3 ?/ e1 |! K$ Q) Y LOCALE_SYSTEM_DEFAULT,3 Q) W" q) S6 b$ S6 p- j0 w) P; e" t3 C
DISPATCH_METHOD,; G" ^0 R% H) v5 E$ e$ m
&dp,2 @* \' [/ y. g+ K" |* q
NULL,; ]/ }; y1 R) ?' e) t) G" t- X1 @8 F
&ei, 6 {6 r1 x- d# L. _ &uiErr); . s6 s2 s4 B0 d% F+ j( v# b4 q! s6 ]" z
SysFreeString(topicStr);* G8 x5 y' R- D C
SysFreeString(itemStr); " P0 N: x' T- }# s' P' z SysFreeString(valueStr); - J+ B3 G t/ G+ U + g( X6 c6 m' n. [6 I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???/ y9 g1 w% C( O9 b- c7 H
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???? ' o2 L8 D1 V2 r* M; }% ^% N* d7 Z' \
7 C) f! r8 k# v7 W% C! h- F) f2.这是request的程序, R7 o s7 U9 P$ s8 i4 `5 P
// Request a value from Extend $ h( k R; Y o// $ w9 g! o% S' v0 y& U/ U' O// Initialize the variant that will hold the BSTR. Set the variant's # \' d* X- l X6 c$ l5 s c// type flag to indicate the fact that this variant holds a BSTR. Place the# h. e2 d& ^) \) T" q; v% U/ c7 k
// BSTR into the variant structure.5 N: P* W! p+ ^5 y$ M% w3 y) M( v( k
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , c1 v: @' w* T' i5 V - D9 s' V( q7 n5 P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# q. i+ X, C- Y6 w' h8 q/ Q
VariantInit(&requestVariant[0]); 6 n! ?. P! w8 E) F
requestVariant[0].vt = VT_BSTR; {8 s' j/ ?5 P* y0 f6 a
requestVariant[0].bstrVal = itemStr;" W7 g- \6 p$ |/ J7 b
0 V; f9 P1 r% ]- }! R topicStr = SysAllocString((WCHAR *) L"system");# i- s& s& H4 K; d
VariantInit(&requestVariant[1]); ) y( Y. q4 [2 \7 V4 z
requestVariant[1].vt = VT_BSTR;0 O# D' [# C* f! F, r3 G
requestVariant[1].bstrVal = topicStr;9 E/ n6 Q- L$ D I$ {
3 w s1 x' F! J% n$ u, Y// Set the DISPPARAMS structure that holds the variant. 1 F& e* X9 h: K- O2 B8 }8 g- r2 ~1 B. J9 m) B ?4 \
dp2.rgvarg = requestVariant; 8 {) l" i! o# N$ H) ]# u: U5 V dp2.cArgs = 2;% f$ o2 f0 k. t7 D! x- p
dp2.rgdispidNamedArgs = NULL;) C0 R* K6 s+ ^, H& x
dp2.cNamedArgs = 0; ! m, {/ `+ b# S) s/ ~( |; Q! r5 ~# v
var.vt = VT_EMPTY;0 T% g1 y# n! j& k$ j
& m( [, o8 K3 u8 c6 V9 ~// Call IDispatch::Invoke()% l1 ]$ L' \, N. t5 F8 S5 @; Y
& W7 t( A7 \. |' Z" G) S+ J: K7 v9 d hr = m_pDisp->Invoke(1 e9 z2 U5 i! P$ {$ C, R/ u) u5 M
requestID,3 ]0 A3 p U6 X: ^7 j& R8 z/ d
IID_NULL,3 |! V- W' _ o
LOCALE_SYSTEM_DEFAULT, 0 T9 m9 g g$ n0 L7 W( ? DISPATCH_METHOD, V x, Q N3 j5 V$ G8 N5 I
&dp2,7 r" a- `4 J0 t# h% O% {: ~, Y
&var,, H" a. h' v4 x, F+ m8 [) \
&ei, ; m h. g( T( J; n$ g* O &uiErr); : u, R* h5 u! F8 V- f* L9 c! c" M& f( E3 z5 d- q
SysFreeString(topicStr); 1 I7 g- B& Q/ i; ?5 _ SysFreeString(itemStr);; C: O# p" k3 y" Q4 n# H
请问该程序是获得extend里面的哪个值?* @; H& |+ U9 s
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????