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: % ?0 R/ C. T0 z7 \Name = (WCHAR *) L"Poke";& Y w- ^9 I; K. k" A9 W
! A% Z* R' T* @; N# [1 ]: R+ @) J hr = m_pDisp->GetIDsOfNames ( - |% s1 X, y1 t4 N. X: p7 M IID_NULL, // reserved, {$ N$ w) y4 f2 L( ?6 R J
&Name, // Array of names to get IDs for ) Y, ^. ?: V, ~) A# U U 1, // # of names in the array( A$ ~& T) @8 M
LOCALE_SYSTEM_DEFAULT, // System locale0 y+ A+ F: [5 u4 x* c& h) y
&pokeID); // Array of IDs to fill on output. q/ Z! a7 N1 m8 @1 V
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if (hr) ' S) |- ?) V6 B$ U3 ` { + }/ J# N9 M* R' c; ]3 y MessageBox ("Get Poke Unsuccessful");" ~% j6 M4 ^8 I
return; & ~/ \, ]' D3 K% l0 X8 h! n }$ V% F% G$ A F! w9 Q3 {
- K9 W8 i: @1 s8 a2 o2 U( K; F/**************************传递数据给extend**************************************/ 6 q2 o" C) E7 a5 s d% Z" s- W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: U" X# b2 e. J
8 O4 k! N4 t" F9 U% m( F$ x valueStr = SysAllocString((WCHAR *) L"1232");# a! [7 U7 {( p% `! F/ T/ r6 N0 l2 [
VariantInit(&pokeVariant[0]); ! M" }; H" r0 n& C/ H
pokeVariant[0].vt = VT_BSTR; " r7 p5 W. B5 x9 j% C E pokeVariant[0].bstrVal = valueStr; 2 y: I# f; i( x5 D" p. ~4 O3 c7 a7 I* Q- X& p7 p8 N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + T/ h! U) j" C5 p. |8 W$ | VariantInit(&pokeVariant[1]); 7 x* g6 i( v# _4 D4 F% K: [. O" C pokeVariant[1].vt = VT_BSTR;: t, {1 U, [$ G$ r) Q- B6 v: l
pokeVariant[1].bstrVal = itemStr;, i+ f' i% q4 d9 e- A& |3 \0 W
% l& i, u% }" f! a8 h, W: K8 e7 U$ M
topicStr = SysAllocString((WCHAR *) L"system");7 v5 [& T9 ~4 ^
VariantInit(&pokeVariant[2]); 9 f# Y% |, i& g6 B; f( O pokeVariant[2].vt = VT_BSTR; & C G, s9 |& O5 n1 _' k pokeVariant[2].bstrVal = topicStr;4 x! ?0 P! L' q1 f8 H% L: f/ j
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// Set the DISPPARAMS structure that holds the variant. ' c/ p x/ P" t1 Z: h. K. ~8 Z5 [- ]% p1 ]
dp.rgvarg = pokeVariant; 6 k. ]$ t0 s6 e- Q dp.cArgs = 3; # \1 Z3 \- y& {# N& Q, e3 w dp.rgdispidNamedArgs = NULL;' F# E: o7 t n( o* W
dp.cNamedArgs = 0;$ H7 a* ^7 K P8 j7 |
2 @* `! h6 a& H! @// Call IDispatch::Invoke()$ j% f8 H, S' a: J7 j5 x
: w* r1 f! @' h8 v. X* _ hr = m_pDisp->Invoke(. @; y, Q+ @% o. u& Y
pokeID,$ o" D M4 H8 f# e+ h$ s
IID_NULL,* I/ u& Z$ m7 q2 Z6 h p7 J! {' W
LOCALE_SYSTEM_DEFAULT,/ m. K. f: R& [
DISPATCH_METHOD,5 ~: F7 f ^& g
&dp, 5 G9 K/ C4 a' `# H; h NULL,0 T! x) i4 X @) V9 B/ K
&ei, + X q+ g8 ]5 E* {0 O) R &uiErr);7 c& ]% _( m: ^ F% r
4 A' c9 b ~8 t! Z! K SysFreeString(topicStr); 7 a- \9 N( ]0 H+ l; u SysFreeString(itemStr); 5 j( K; b8 h2 U6 T4 W4 H SysFreeString(valueStr);' f0 K+ w3 D1 b
9 \. Z6 [" g' A! B' ~
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??? 2 ]* X- [" @+ v( ~% _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????& d/ i7 b9 t( }' P
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2.这是request的程序3 C0 L" P& k8 ?* W
// Request a value from Extend2 j$ g3 j' d' H8 ]# I
//) ^% g: ~- m) j. Y$ K9 _
// Initialize the variant that will hold the BSTR. Set the variant's ! _2 H) T0 a6 C( ]5 L2 i+ h7 l// type flag to indicate the fact that this variant holds a BSTR. Place the 9 @% G6 ?& I) o) u( N! r// BSTR into the variant structure. ( }; m! k; \. J" `" l, | % v* J5 m8 X7 j2 A9 d% X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); T8 W' V- M: _' G9 f
, i6 V* y; U# z. a5 M6 v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) F: @- d3 A# C+ F; b7 A' h$ N VariantInit(&requestVariant[0]); 8 r! w h& H0 ], E. a0 M! o7 s) F' P9 J requestVariant[0].vt = VT_BSTR;: A- T9 `" O& k
requestVariant[0].bstrVal = itemStr; % c) ]1 G1 c+ t( J' N. O" q) y; c8 Q$ C0 t! h6 [
topicStr = SysAllocString((WCHAR *) L"system"); & d5 j/ v5 G) i VariantInit(&requestVariant[1]); 3 p/ y0 U0 b' U) H
requestVariant[1].vt = VT_BSTR; . b: L7 t2 f3 I1 x+ i. j* b5 T requestVariant[1].bstrVal = topicStr; 2 R* n& n* x5 n5 j) ]% P 4 `9 E0 E2 r$ L& b* @3 V( H! y U1 Y// Set the DISPPARAMS structure that holds the variant.5 y0 N* o8 G$ q/ L( Y
5 x! ]: B) Z6 E* o' g dp2.rgvarg = requestVariant;2 |$ C; y8 w* k2 y- Q
dp2.cArgs = 2; % e' |" i0 E7 |- @; K; L6 p# S dp2.rgdispidNamedArgs = NULL; e# ]) q0 {; M, y: q" g) K dp2.cNamedArgs = 0;( N% A9 S) K; y8 _
3 f+ ~( E4 o) e1 S; x: X var.vt = VT_EMPTY; 5 R, U. {1 l/ Q/ w/ f5 U 6 j& B+ K- D) y# R& O' h// Call IDispatch::Invoke()9 I% c4 N+ g, e! D/ A4 k, O
& w+ Z* {* ?2 ? E0 [. q) t hr = m_pDisp->Invoke() B; H2 m/ _0 `
requestID, ' M; r9 ]; A" @5 ^4 c) t1 m V IID_NULL,6 X ~. a1 t) @3 Z
LOCALE_SYSTEM_DEFAULT, . q/ Q3 p" n' P0 Z4 C8 L) Y DISPATCH_METHOD,/ [6 _; f# T; ?- U# d; J2 h
&dp2,2 |; s; z% Q6 K! K5 m% G
&var,) c" Q0 L. q4 F6 [
&ei,0 Z9 Z. i- j- k% G4 i4 A
&uiErr);/ {" c. a8 @+ a5 J$ p* h
( o8 W) r* x$ B# z9 q+ q SysFreeString(topicStr);5 y6 G+ m p% ~4 G/ `
SysFreeString(itemStr);6 i* x0 X' j2 G+ Y
请问该程序是获得extend里面的哪个值?4 d9 z/ {+ q9 K' L
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????