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:& E, n3 ^ H0 P& W- t- L
Name = (WCHAR *) L"Poke"; 5 N# L# K I9 V5 q+ q8 g* Z 8 k3 g, W: t0 j5 @! W( R
hr = m_pDisp->GetIDsOfNames (+ ?( j- a6 D( ]2 p I D" M: d
IID_NULL, // reserved 4 ^3 A7 O3 k3 B7 S& I+ f2 ~, p &Name, // Array of names to get IDs for% Z9 |/ G' V! A# H
1, // # of names in the array / e+ p6 ]& P4 ~; g% ? LOCALE_SYSTEM_DEFAULT, // System locale . v; M1 [3 w9 w/ y9 x, z2 | &pokeID); // Array of IDs to fill on output8 C% W; Q2 f2 Q( H; Z4 Z0 ~3 Q
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if (hr)- \4 y- X+ U3 |
{ 2 {9 L+ l7 W9 y7 f4 }. e# m MessageBox ("Get Poke Unsuccessful"); 4 O! A! F* C8 h return; ; E+ o( p7 I! x# m( Z# } }4 M. ^1 k' @) n5 M: [8 H8 n0 _5 x
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/**************************传递数据给extend**************************************/ & u9 K: |% O0 E8 ?0 _2 i9 ? pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 D3 F! N0 t$ x: d, h
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valueStr = SysAllocString((WCHAR *) L"1232"); 8 ~# T( c+ W# y VariantInit(&pokeVariant[0]); 8 o4 o6 W/ \1 Z# T, \& n3 l' K$ ?$ H pokeVariant[0].vt = VT_BSTR; ! p% U# _7 o# q' v pokeVariant[0].bstrVal = valueStr;+ J7 w* m8 B8 a# f1 J
0 Z B- q4 o- \/ ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 {0 ^& s$ ]6 Q' b VariantInit(&pokeVariant[1]); $ S# y5 L, x9 H ~1 ~" C& n pokeVariant[1].vt = VT_BSTR;5 U+ r% J6 _9 ?
pokeVariant[1].bstrVal = itemStr;3 g6 L3 Y; K3 s7 J1 ^4 M
& \3 N# W# q9 |8 n/ P& Q topicStr = SysAllocString((WCHAR *) L"system"); V# X. Z t7 X% p% { VariantInit(&pokeVariant[2]); # w+ N- z4 Q' A0 x' q) y/ B pokeVariant[2].vt = VT_BSTR;0 X! L3 z3 c0 O, Y& @! m
pokeVariant[2].bstrVal = topicStr; , o/ v% L. I2 R7 ~0 N# ?' T+ J k' i* R5 [* `3 s
// Set the DISPPARAMS structure that holds the variant. % L+ A- x) G8 Z3 J" H* Y7 ^; `3 L" Q. L
dp.rgvarg = pokeVariant;3 M) \# x/ A4 R1 D' {2 Q# S& a; U' J
dp.cArgs = 3; 8 G9 a5 b+ U' l7 R% v/ H. c* @1 W dp.rgdispidNamedArgs = NULL; ( d# t+ D0 H9 N A: ~1 M* U dp.cNamedArgs = 0;1 V3 r$ R* f, ~9 r
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// Call IDispatch::Invoke() 7 w) k- }; \1 m3 W- d ; w( x* T- ^& h% H) ^ hr = m_pDisp->Invoke(" Q1 c, M. ]0 F
pokeID, . A F" o9 y. \% c7 J' |1 m IID_NULL, 8 B+ Z. L* c2 }! u% ? LOCALE_SYSTEM_DEFAULT,! K# Q# I& T# ~4 u1 p( B1 r2 }0 D
DISPATCH_METHOD,( C* ~$ r( B O! Z
&dp,6 B" F9 ~: t' R ^
NULL,/ L2 X" H* `0 W' @+ f& p7 ^" M
&ei, 8 z! \$ }; \" w$ f8 ] &uiErr);% X, v* |- p% Q6 R2 t( u0 A5 {% r1 k8 m
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SysFreeString(topicStr);+ [$ [8 J7 |& X& C3 }# c
SysFreeString(itemStr);6 U3 `* N4 M; \1 e. m: m
SysFreeString(valueStr);) J( p* u5 p$ K3 a
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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???9 X9 Q4 g! V7 Y1 q
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 Y6 y% v! I& X: W8 u. `; D
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8 f* A" L' p5 \" h! j# m+ Y/ H g2.这是request的程序+ I5 k) _. T1 P/ D- E5 I
// Request a value from Extend1 D* A/ Z! C6 p" e: O
// % c2 I' g2 @# }) x// Initialize the variant that will hold the BSTR. Set the variant's4 O" y; `( b% t9 ^$ S
// type flag to indicate the fact that this variant holds a BSTR. Place the- u9 k* ~% T' K" F: T1 p' j; A1 o
// BSTR into the variant structure. 6 {; Z5 S' W) X* `6 r# s 5 k3 I% k9 f! |' l1 i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" r3 o6 w, W6 V
7 B7 y9 z; @( _1 } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + B' c0 \: F! z/ W3 f ~* v VariantInit(&requestVariant[0]); ' y* a$ I& _, B; l0 ?/ f+ ~, G+ \
requestVariant[0].vt = VT_BSTR;* ^- A- J# h! v7 C' L5 ~ n
requestVariant[0].bstrVal = itemStr;0 o8 x9 d( h4 _& d" s- M" l
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topicStr = SysAllocString((WCHAR *) L"system"); " v; h, n% a2 }% Y9 }, \( N VariantInit(&requestVariant[1]); ; |0 n5 d9 }2 q, I* v requestVariant[1].vt = VT_BSTR;. e1 B, P% _6 {$ V
requestVariant[1].bstrVal = topicStr; 8 B" q2 C& E- t$ v3 [+ Y3 m" E6 @ # G1 f+ R" j2 r4 m9 N// Set the DISPPARAMS structure that holds the variant.1 ?# v+ _& V( a m5 c
7 Z( B; ?5 V3 o. ?; o' C% D dp2.rgvarg = requestVariant; * G/ ~( P, D9 ~! A# j dp2.cArgs = 2; + K9 j7 v% ]; R3 h dp2.rgdispidNamedArgs = NULL; * F( Y' _1 K: e) | dp2.cNamedArgs = 0;# K& ]3 I' k R5 p( u. f
6 o7 ~( K6 z1 ~, d0 o1 s( M var.vt = VT_EMPTY; ' u1 l( x% [% U; [4 `& }8 _9 R / h v- ]: c+ r2 O+ r. C5 U; `// Call IDispatch::Invoke()5 E: `1 A1 g$ H/ S9 U; S1 H: S7 |8 }
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hr = m_pDisp->Invoke(5 A0 K' t- g/ x
requestID,* {! i( Y6 ]8 W
IID_NULL, 0 S. q) {1 `) R. T: w6 L. { LOCALE_SYSTEM_DEFAULT,2 I; S; G1 r6 n: i% L2 x( D( [
DISPATCH_METHOD,, P- L' G: N" v) Y4 c
&dp2,, s9 K9 \2 K; _. z
&var,0 ^( I" V1 f, @( u5 s9 Y
&ei,$ `% X" z1 O) ^5 y
&uiErr); " X- O6 R' m0 ?. V$ v7 f! a- Z" Y% D" w& \% Y
SysFreeString(topicStr); # [" Q5 L, Z7 J# l SysFreeString(itemStr); / q0 Y- O8 ~* [5 M4 ~请问该程序是获得extend里面的哪个值? ' [5 h6 c$ p& l! S5 J8 D `! 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????