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:, X' N. }1 I0 o* r M. x7 Q; Z
Name = (WCHAR *) L"Poke";: E5 a. g: @' D3 [$ b2 s4 @
+ Y3 Q0 |" `4 q3 ~, I$ e$ ]+ @9 g hr = m_pDisp->GetIDsOfNames ( 6 D# g/ M$ q- \4 K8 _0 v0 x IID_NULL, // reserved 9 h3 R/ ?+ |$ D, u2 v- \9 s &Name, // Array of names to get IDs for 8 F G x/ {: O" S 1, // # of names in the array " L2 I& ?( D3 |7 Q; u7 h l3 B LOCALE_SYSTEM_DEFAULT, // System locale0 `: S: v# E: n2 |0 X$ L
&pokeID); // Array of IDs to fill on output( n( G3 P+ P, r* L; g9 `
" d+ x2 P% Y/ G3 V) Q if (hr)% a. U! k( j- a: A4 b( w" l, u* X2 s8 X
{1 j; Y! s; f2 e2 w' j
MessageBox ("Get Poke Unsuccessful");. G/ [% D0 J$ d" c/ a E
return; . C8 I7 {9 E4 c0 J2 r- H' h* V }5 {( H U* f% F2 \& ]3 T
7 b4 t/ f' d; F/ e4 [7 M; l/**************************传递数据给extend**************************************/ / S- q; W/ F- O) m$ |5 f0 K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); v2 B1 d) \" r( y+ N4 a
* }. ~2 A" m) ~5 }' }
valueStr = SysAllocString((WCHAR *) L"1232");& J4 m, F, f1 P, D% X6 T
VariantInit(&pokeVariant[0]); * Y1 H$ o5 J7 X Q9 A- d9 l
pokeVariant[0].vt = VT_BSTR;1 T# i8 m6 G/ g$ I
pokeVariant[0].bstrVal = valueStr; * @! w4 o6 q5 f! I" ?6 _ / h# J, p/ j! l+ j+ r7 c9 l0 a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + P( h/ `& Q; R B4 l. o! E VariantInit(&pokeVariant[1]); # e' n9 }' R! b1 h2 c& b
pokeVariant[1].vt = VT_BSTR; . y" P* d% E4 V1 |9 d2 E pokeVariant[1].bstrVal = itemStr; " B, ?! O6 N4 \( \, J- G8 S 1 s+ C- [0 M8 ]4 W" q topicStr = SysAllocString((WCHAR *) L"system"); I+ s w* C* w
VariantInit(&pokeVariant[2]); 8 |4 V3 J! p G8 f. f( `' `* q$ k
pokeVariant[2].vt = VT_BSTR;, F. Y! j' B) P* K) d
pokeVariant[2].bstrVal = topicStr; A: @3 p( I" o* L5 g6 ?3 B
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// Set the DISPPARAMS structure that holds the variant. 7 z( F, Q& O; x5 ] 4 F" A; ^5 c5 w" i dp.rgvarg = pokeVariant; , |" W6 [; o6 c dp.cArgs = 3; ( W8 l( ^8 f K( S, ^/ r( Y5 D dp.rgdispidNamedArgs = NULL; % m) Z2 B% D# @. T0 d, q4 o% T t dp.cNamedArgs = 0; 1 t$ F8 c/ B5 K F# }- z- E# a0 X// Call IDispatch::Invoke() $ ~5 M# B- k1 l) I& }( L) d* i; c5 ]- E' B) v m
hr = m_pDisp->Invoke(- z! T$ s* @2 Q- M5 `
pokeID, `( j m2 L, V; n IID_NULL,; w* v' Z" B6 E- W& H$ n3 k
LOCALE_SYSTEM_DEFAULT, / B5 P9 S- ~; w; Z: k0 f7 T$ o& ? DISPATCH_METHOD, - s* ?3 G4 J" X2 c9 g- n" d &dp, ! f2 Q/ ], K. Z5 D% _" i( j& h NULL,9 ^# a8 f) R* o4 \/ o0 a ?
&ei, J. G8 w! d. `7 ?2 \6 e! l &uiErr); + d; D* @7 P7 T$ ]% Z 7 H, \$ }3 G9 f1 G1 r SysFreeString(topicStr);+ ?$ V8 ~# a% | s4 c) {
SysFreeString(itemStr);' G) n: H6 e8 p5 [7 f" h. s
SysFreeString(valueStr); 4 {- b8 U0 I- n5 t }* }- I # p7 v: v. h6 w/ N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??? * V4 m" {' w$ O5 k; T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???? 5 [4 ]8 N/ P& M4 d$ ] 5 ~0 g5 E, @: z) y% O1 U. b t0 k/ [2 j$ \2.这是request的程序 1 W/ d8 y7 a) H2 k* G// Request a value from Extend0 Q& v5 R m2 y6 L( U$ H( o+ ^% D9 b
// 8 q" J/ s0 R8 v3 L W// Initialize the variant that will hold the BSTR. Set the variant's$ q/ `0 p; s3 p) d4 v
// type flag to indicate the fact that this variant holds a BSTR. Place the$ D; l ]4 u5 z, o1 x/ B' P8 b
// BSTR into the variant structure. p& a j: A }/ j. r/ h5 k# v9 ]2 t
6 t1 g) a# G& o* u R8 I8 q/ F4 g requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 D% D. M1 i4 l1 {% V8 \ v+ ~
" @4 Y; f9 \1 S8 R/ E( e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 z$ H% m& R) {) ], a- S9 t5 F
VariantInit(&requestVariant[0]); 6 N$ t' c; d4 n$ ~, q5 \
requestVariant[0].vt = VT_BSTR;- A4 R+ z. K% _: T
requestVariant[0].bstrVal = itemStr;; G8 |/ B e/ B8 H/ C
% q, M# S6 _: z8 F topicStr = SysAllocString((WCHAR *) L"system");4 I0 \/ l5 l: h* W9 [9 p
VariantInit(&requestVariant[1]); + o- `5 e$ R8 p% B, h requestVariant[1].vt = VT_BSTR; + T' @' {, u# G1 f9 @* ?: X requestVariant[1].bstrVal = topicStr; . _& N$ X, X# Q6 [0 Z0 m* y. C- l+ Z# v6 A8 y3 T
// Set the DISPPARAMS structure that holds the variant. + W! D5 H% o( _3 K ' l9 p. k. [$ ~5 [9 A dp2.rgvarg = requestVariant;1 T( O0 X( [/ l* h* e
dp2.cArgs = 2; - T% a9 S, Y' V% |. j( ? dp2.rgdispidNamedArgs = NULL; & p7 P( a' Y9 {$ f: f. F7 e; N9 l dp2.cNamedArgs = 0; 2 ]! F! p3 |+ F7 t: t/ P0 |1 t- h; f7 u: q; O+ k# K& ^7 D4 Y$ D
var.vt = VT_EMPTY; % w2 t( n% }0 U8 t1 g8 W/ W2 j ' r( F6 ^, E3 D: A# V$ t// Call IDispatch::Invoke() 5 T6 Y3 Y/ c) |+ t" k % i' I% `! ^* ^0 j8 y hr = m_pDisp->Invoke( {! X B* a! q0 r) G+ r
requestID, 7 ] m& k$ i" C5 ~$ S, i IID_NULL,; U' \% _# L1 O4 D# L7 ]
LOCALE_SYSTEM_DEFAULT,4 F5 Y+ m9 ]% V
DISPATCH_METHOD,+ o3 ] ^4 h; b; |& I" R
&dp2,( L+ T8 J# F9 o$ ?' {! L6 P
&var,! d( w0 V& E/ r. T% ?' K
&ei,1 Y, R* m% d( V9 C% e# C, d6 h. L
&uiErr); 9 I+ t3 I, ]( T$ a 5 ]3 u! v& {$ Y6 u: ~, l; B" s; j SysFreeString(topicStr); 6 D2 H) a) e i: S g' j SysFreeString(itemStr); / Y2 }9 S' u% z ^: N- I1 S- O请问该程序是获得extend里面的哪个值? ; Y5 b0 k9 t- A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????