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:6 x6 c2 b5 K& \, S6 X# m* o% J
Name = (WCHAR *) L"Poke"; ( }- ]! Z3 R6 b! a1 i: n - H4 y8 A2 i+ }, [
hr = m_pDisp->GetIDsOfNames ( # Q! Q, l9 f- C+ Z IID_NULL, // reserved: ]4 V+ e. J6 m. w% u# `
&Name, // Array of names to get IDs for 5 |2 _1 T* ^& |$ ^* a 1, // # of names in the array & ~* K, S9 I: L8 N8 y3 G LOCALE_SYSTEM_DEFAULT, // System locale ) a9 r4 ]2 l# W# u# m3 Q- M &pokeID); // Array of IDs to fill on output# C. a! L$ C2 r U! W
- ?' ]7 Q4 z0 r if (hr) 9 c3 _" j+ o3 s4 q0 s8 H% n0 i { 8 K* ^. E; Z5 j, B+ _% M/ Z MessageBox ("Get Poke Unsuccessful"); , g$ i! E" f- S4 u return; 5 I1 m5 |6 L- x" ^1 Y; j3 m7 J }$ Q1 X$ Q/ ]! H3 |1 L/ T* J6 a
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/**************************传递数据给extend**************************************/ " |& u* s) s; w6 ^6 S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' R7 P/ M+ V6 L7 f 3 [6 o2 V" k# z; s, C
valueStr = SysAllocString((WCHAR *) L"1232");5 S# z7 J$ J$ O3 g5 S' O% |
VariantInit(&pokeVariant[0]); ' }6 i+ N7 n+ j" _ pokeVariant[0].vt = VT_BSTR; 5 G, N/ B$ Y: D Z pokeVariant[0].bstrVal = valueStr;* F" C# k+ F3 Y5 Z( P' k
5 @! O& ]9 p% n, ^2 U/ U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( L- Q: Y! d" \! P( Y! O/ Z4 o VariantInit(&pokeVariant[1]); . l4 ^5 i" T. x4 N+ O. X pokeVariant[1].vt = VT_BSTR; 7 w. P) g/ c. E3 W$ p, g pokeVariant[1].bstrVal = itemStr;9 g! _/ I3 t, h1 g+ E. b
" E$ w# v, X( o9 L6 t1 e topicStr = SysAllocString((WCHAR *) L"system");+ j! I: S& u, F C. e: [8 @
VariantInit(&pokeVariant[2]); 3 Y& z$ m# H3 Y) @
pokeVariant[2].vt = VT_BSTR;+ V. o8 c& a2 X8 r& [
pokeVariant[2].bstrVal = topicStr; # b! h! |* b \7 j7 ?7 z' g0 f0 N4 h/ t8 w4 @
// Set the DISPPARAMS structure that holds the variant.! `. v1 p5 T. v7 k! R
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dp.rgvarg = pokeVariant; 7 j" M G- M" x$ O, k! x' H: G, L dp.cArgs = 3;5 m d$ t+ Z* ]% z& B/ d9 O
dp.rgdispidNamedArgs = NULL; 9 p3 z' Y, s. R( n& Z( H7 I dp.cNamedArgs = 0;$ @" S( E8 d) g' x/ s/ ^: A. C
* k: I& s5 h3 Z: r" [// Call IDispatch::Invoke()7 S* S. f; m) S. t7 o
9 p& \$ j$ Q0 F2 y) w$ t hr = m_pDisp->Invoke(% M; f+ J/ o( X$ Y/ z& m. Y2 O+ z
pokeID, * F! ?7 C3 x" N. x6 h IID_NULL, 3 p4 N9 o% P) ~ |7 O5 x LOCALE_SYSTEM_DEFAULT,0 a! t, U2 D2 b( N0 w2 G
DISPATCH_METHOD,) R1 ?7 s: R# W1 R
&dp, # z; W% I% a- N3 N2 \. c! ^* ~- v NULL, $ N. N7 P8 J* o/ } &ei,' U! |9 S1 C( P+ X2 g3 t1 S1 p
&uiErr); - A, S1 @" W" @9 U* J$ }* m" t2 {7 \ x5 q( q
SysFreeString(topicStr); . t: T7 \8 r% C, N0 f SysFreeString(itemStr); h" ?8 r u+ r. B( N SysFreeString(valueStr);& w+ j9 ]* y) Q7 r5 Z* x/ |: n/ O
& |$ l' O/ ]8 j/ l* z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???/ G1 h- y) Z4 _7 [6 Q8 U
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????: q: s/ J2 ^+ ~3 H3 ?0 d/ V- K
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. a/ }# v" x( ~8 ~; n" M/ W2.这是request的程序. |' G- r2 k0 ]
// Request a value from Extend 0 [- D2 v2 }% w1 v& Z" t//) {" v1 @" R" F4 Z. t
// Initialize the variant that will hold the BSTR. Set the variant's3 p3 P. J! `) i* v
// type flag to indicate the fact that this variant holds a BSTR. Place the5 c# I- k; y' ~4 g; O& q- Y
// BSTR into the variant structure. - e* a2 P* j; X" C7 w# V' e. M$ o, r& i* s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: b6 L; _ j1 D" @
i5 n4 U; V" E( q+ T0 D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 Z2 ^3 d1 C5 V9 n VariantInit(&requestVariant[0]); ; |: Y$ w+ g2 X: V h4 N. }" x9 p requestVariant[0].vt = VT_BSTR;9 W2 t/ t# n: w1 y2 w: y
requestVariant[0].bstrVal = itemStr; 8 r) e0 O! L7 ^- h2 X' G9 x- x8 x
topicStr = SysAllocString((WCHAR *) L"system");1 t9 e, L0 ?, K: @$ L' D
VariantInit(&requestVariant[1]); 3 ~6 i; ~8 o2 I" b' Q6 Q4 h requestVariant[1].vt = VT_BSTR;+ B# ]2 w% z( N
requestVariant[1].bstrVal = topicStr; 9 j1 B) {) y+ U% F + c1 l: M4 i, @: l/ m( e// Set the DISPPARAMS structure that holds the variant. & K, j& v% ]/ Z! r 7 B3 x5 E& a, z( @1 y+ A dp2.rgvarg = requestVariant; I5 A7 d1 U. G* ~# t$ k" V3 U$ \ dp2.cArgs = 2;( i+ s* a( r2 _
dp2.rgdispidNamedArgs = NULL; 6 v; w7 V! Z' l# t2 R& e dp2.cNamedArgs = 0;7 e# ]9 z3 a+ {1 q# B+ D
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var.vt = VT_EMPTY;% Z0 x4 g* Z- U/ U. w/ P
, f) w5 A+ z( y7 [) U! y6 Y0 X: N// Call IDispatch::Invoke()5 n. [8 k/ R+ r7 B8 f4 T
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hr = m_pDisp->Invoke(6 T X$ x; {/ n# n( h. X! ^! A
requestID,. T: ~; q5 n% R* F- Z2 V
IID_NULL,6 M( y* T: B) L8 q& b5 f" ]5 ^
LOCALE_SYSTEM_DEFAULT,5 j; Z! v. t0 w8 L+ w
DISPATCH_METHOD,3 j) m$ d4 |# O2 s( ^/ l
&dp2,1 i5 X5 V1 G3 k$ W" S
&var,( J- Q }7 @: U6 Q
&ei,# `) c9 n: I* p$ R, }
&uiErr);$ ]/ H, H9 y7 ]$ k
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SysFreeString(topicStr); * I* {5 @: N5 @; ^ SysFreeString(itemStr); 9 W5 O+ e5 y" p0 Z Z请问该程序是获得extend里面的哪个值? 6 b( e. h, _( I' z2 ~/ z+ R& 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????