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: 5 u! h1 P/ t# X# CName = (WCHAR *) L"Poke"; 4 {4 e$ ?+ D# v8 I 6 K2 U; ]1 ]) c( W
hr = m_pDisp->GetIDsOfNames ( & d. v" A! H8 s* w- I0 x/ U IID_NULL, // reserved+ Q2 R; w; C. e' U; j" y( O0 Y5 g
&Name, // Array of names to get IDs for# i/ N5 k1 B5 A& c: ^
1, // # of names in the array" I: Y% h/ L) R
LOCALE_SYSTEM_DEFAULT, // System locale# F4 ?) A3 C' T0 w5 d$ l
&pokeID); // Array of IDs to fill on output4 @+ s8 a& o. z Q
0 j/ M( C: h" w$ f7 }: X
if (hr)! Q7 [% @. t, h/ a7 f- A: ?
{9 v7 {6 Q x1 a/ { w
MessageBox ("Get Poke Unsuccessful");- d( H4 b3 [: [$ F* F$ f. U" z
return;3 k* G* W7 K+ U( m a% I: O$ I9 j
}. ?/ E8 O z5 m/ B9 t; _1 Q
4 L6 L4 j- w8 z% ^ ^/**************************传递数据给extend**************************************/ # K; h7 E8 F7 S9 x% h- H3 ] pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* k, P$ N, r( O. @# j
" Y3 t4 r- C3 X
valueStr = SysAllocString((WCHAR *) L"1232"); 0 K. ]. F# i" p' _7 w5 b7 c VariantInit(&pokeVariant[0]); % n8 y4 k2 U2 a+ O# Q! Q _ pokeVariant[0].vt = VT_BSTR; & h. d* {' U* }- P2 t. L; j pokeVariant[0].bstrVal = valueStr; ?& j/ S% I1 T) q( } 2 E7 S% m- {* p' V4 E, F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: K* z. l3 _- k
VariantInit(&pokeVariant[1]); 2 Y+ Z' ~7 q* ]3 V1 G pokeVariant[1].vt = VT_BSTR; ) ^3 f: f3 q4 ^- J$ F- K0 L9 z2 u pokeVariant[1].bstrVal = itemStr; 1 o8 e, {$ {; s4 O& f6 }5 b# p1 G- M4 J G
topicStr = SysAllocString((WCHAR *) L"system"); , J# ^7 l$ v, _9 |1 B! ?2 } VariantInit(&pokeVariant[2]); 6 m7 P- f; V% T( ~& O @) e9 H- B; s pokeVariant[2].vt = VT_BSTR;; b) q7 M/ e7 P: \# _' N
pokeVariant[2].bstrVal = topicStr; 2 ^3 w" u; j3 w1 C! n9 @5 S0 v; Z* Q6 F+ n7 y: f( V
// Set the DISPPARAMS structure that holds the variant. 0 y4 g1 L( @; _( z$ N% V# _2 x+ p0 G/ ]9 ]9 s
dp.rgvarg = pokeVariant;. s2 W0 @- ~: G
dp.cArgs = 3; T; ^1 F) @. I; }; J2 s e
dp.rgdispidNamedArgs = NULL;8 y E2 {6 u; X4 J" `1 y# k
dp.cNamedArgs = 0; 8 n$ _2 G, }3 f) i6 y, `# o" q) X1 V( A1 U1 _- D
// Call IDispatch::Invoke() 5 X! t; X) z. ]2 [/ a3 C- i 7 R, O" b6 \& y: r hr = m_pDisp->Invoke( 6 s8 s4 T' E1 N8 _ R2 l# ` pokeID, ; T& }" z- w3 |% S1 ~( ^ IID_NULL, ) x+ i* n* t6 h" r" p: @" N LOCALE_SYSTEM_DEFAULT, / y7 |5 t4 M2 ~+ e DISPATCH_METHOD,+ K6 k7 h. G( \+ Z
&dp,1 a2 z' }% P5 u( |0 X4 y
NULL, . V/ `. y! G0 p8 n/ C! q$ i8 W &ei, 6 T5 R; h2 [ r3 y0 A. c% Z# s &uiErr);& [% R# T) |3 D4 b9 {( Z
J# x. c7 y! Y) m1 r- U2 e
SysFreeString(topicStr); / P* p) U/ H7 A p8 H) N SysFreeString(itemStr);" q* M! N7 W+ a( ?+ ?, t
SysFreeString(valueStr);5 t( O6 m: c9 l' ~& ^
* K! k8 Y y+ x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??? - T8 s; t. C! 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???? 0 L4 U8 |7 b3 [# U' Q; r7 r3 \" z/ ]9 R$ W; b9 E2 }0 P6 B
, U- d+ S! h- C- W
2.这是request的程序 + O: v9 }$ a: U( V' Z9 C// Request a value from Extend/ t2 @: s/ V* K2 a- u; m& l
// 4 B* Y5 N! I/ @0 A// Initialize the variant that will hold the BSTR. Set the variant's! Y$ l8 [: j6 o& |" M
// type flag to indicate the fact that this variant holds a BSTR. Place the " z2 p f {. i* V5 L. N// BSTR into the variant structure.0 |# Y5 U! \ Y% h8 f4 N8 ~) O
" M X6 B; a8 j0 F% J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 N7 O4 P* ]! D, { , J2 N- S" D) z4 Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * r. ]; Q) Z# Z7 P- E: G VariantInit(&requestVariant[0]); % r9 o. ?' n2 Q( U- h) m8 x requestVariant[0].vt = VT_BSTR; Q- z: p9 i, D( Q requestVariant[0].bstrVal = itemStr; 2 L* A! W9 B# ]. N' \7 t ! K, ?% l" ^+ ?8 G( s2 k topicStr = SysAllocString((WCHAR *) L"system"); 9 [0 o. A+ d" C) p) K% p% C& k VariantInit(&requestVariant[1]); 8 \( R# x* P- D& m
requestVariant[1].vt = VT_BSTR; 8 T+ ~& u1 n# }" J U: b! F4 Q requestVariant[1].bstrVal = topicStr;9 m+ c9 n; [+ j0 b) t5 ^4 W: s3 D6 _
) J" Q. g9 [% M g9 ?2 y6 A// Set the DISPPARAMS structure that holds the variant.* a% k5 J! C% G2 q' E5 }' i: y
( n, K: I w* O# ~3 Y/ q7 c
dp2.rgvarg = requestVariant;' }3 i) Y; G7 a7 f
dp2.cArgs = 2;' v) @6 w8 M8 L. M: o1 ]5 E6 k
dp2.rgdispidNamedArgs = NULL;: O2 X4 P( e' m% i9 Z
dp2.cNamedArgs = 0;; D( W( j/ m$ x! z" d( l1 l5 p; Q
, L, A: N1 b! X. J" Z2 X) ^ var.vt = VT_EMPTY; x" ^% A2 }2 i, ]+ k: k# C0 s! c7 s5 C1 ^" |, H/ {3 v
// Call IDispatch::Invoke()6 V/ a$ a& g$ ^0 Q" _) T' }
" ]8 K6 _' i6 b! V5 S7 w# n
hr = m_pDisp->Invoke( : @& g5 b+ G# ^$ q* C: M requestID, 5 v% o j4 \5 R/ }! l IID_NULL, ' s4 d0 Y( V. Y" A5 v7 u LOCALE_SYSTEM_DEFAULT,; t3 w2 {, G7 C6 F. Y* ?6 v
DISPATCH_METHOD, ' a3 k% M" S6 A% Z) A4 Y &dp2,, `$ F1 M% r1 r# Q/ W/ L6 ]8 K
&var,& P* ~& B3 X9 O* d+ c
&ei,: n) d6 C1 ^' \# o: Y ?
&uiErr); t5 G, D1 ~1 D" n# l' H
# `# [) g2 W2 G. h! F" T r( y
SysFreeString(topicStr);" k( w P/ Q2 k" Q* R
SysFreeString(itemStr);. x7 m8 Q1 m) n0 [( o
请问该程序是获得extend里面的哪个值?1 S1 e* Y( b. z& ~3 b0 y
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????