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: 7 Q, \( y! L" s3 a$ ZName = (WCHAR *) L"Poke";1 E2 A) ?. x) }. ]
& l' ]& o8 E5 d4 N- D+ |. b hr = m_pDisp->GetIDsOfNames ( $ G! z0 ]* v3 P! s1 ^& z IID_NULL, // reserved % Z9 Y3 Q1 w$ u7 v &Name, // Array of names to get IDs for& {, M$ A1 M) S% }6 D/ p7 o1 h
1, // # of names in the array* P0 a" |8 m) g& N5 B
LOCALE_SYSTEM_DEFAULT, // System locale/ H6 P+ L7 O% h+ R0 t8 j0 h
&pokeID); // Array of IDs to fill on output, }5 l* w4 h6 b9 h/ ~( Y- ?/ h9 G
$ j& D' W! a( J9 ?& d- A6 y if (hr)* ]( O$ F/ Z6 P+ Y% D
{ 0 x1 r' x( O) J. u. } MessageBox ("Get Poke Unsuccessful");: ^' v$ U/ h H) `! w
return; ; c% X3 A. E5 l* H }% ^2 U; a% R, |2 j
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/**************************传递数据给extend**************************************/1 ]9 U9 w" }6 C2 N( k0 y; K, a, o2 f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ |+ j9 r1 Y0 Y% t: O8 A$ j% E
+ x' b: u% J4 e valueStr = SysAllocString((WCHAR *) L"1232");/ j- q& E5 }+ I+ M9 u: |6 ^
VariantInit(&pokeVariant[0]); 8 t" Y+ K; `) L: M3 G' R pokeVariant[0].vt = VT_BSTR; 5 W: H- k" K& \' z9 T pokeVariant[0].bstrVal = valueStr; 8 I* x4 A6 g) i/ k& Z/ W7 b; O* G 2 V9 X6 z4 _9 e( j7 I/ W9 o% t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) r; T+ L& X% W7 W/ F) p
VariantInit(&pokeVariant[1]); $ o/ c4 y# d. y pokeVariant[1].vt = VT_BSTR;8 ~; a( X3 A% ?6 q& f
pokeVariant[1].bstrVal = itemStr; $ p0 G/ R$ {& o5 t 2 l5 N7 F4 j, N4 s$ B5 ^2 d! y topicStr = SysAllocString((WCHAR *) L"system"); 4 U* z' V& Z" l, o3 t( H9 k2 K VariantInit(&pokeVariant[2]); 6 S1 F; @& R% W0 X
pokeVariant[2].vt = VT_BSTR; 1 r9 [9 X2 |+ e5 }4 O) ?3 J* ~; ?: w pokeVariant[2].bstrVal = topicStr; ! Y, ^( [5 P/ t$ Q S$ k5 {6 c7 b
// Set the DISPPARAMS structure that holds the variant.! [8 M( l$ N$ Z* v, y4 Z' z- E
- A3 K0 {+ p! F5 G+ y dp.rgvarg = pokeVariant; ! w" b/ a- b1 G* C. P dp.cArgs = 3; + Y% [ J5 K4 t* L. L dp.rgdispidNamedArgs = NULL; / \9 c n' O! M( u9 | dp.cNamedArgs = 0; : m! e, O) c Y+ D# }/ B& L8 ^5 n; m. F% `% V, e7 _+ x- j
// Call IDispatch::Invoke() $ F4 V) S5 {2 N* Y; i) e. ~* w0 p+ i2 r; _" n8 I$ d+ G8 Q
hr = m_pDisp->Invoke(, p) R3 q, E. @* R( W4 b
pokeID, $ p7 T, S, G! \- W IID_NULL,% f" C, A! k4 l1 v
LOCALE_SYSTEM_DEFAULT,/ F3 J, C, `. }- [ ?+ [
DISPATCH_METHOD, & e. y' S# Z# v8 L &dp,: g+ b' n G' m, R' c4 L/ T
NULL, ' S4 m' f, A0 s8 { &ei,& R" V0 C' K( t; Y. V
&uiErr); ( _1 L' \: {, I9 e0 U. ~3 l- l# a0 E
SysFreeString(topicStr);4 x- ]; ?! t, g5 W( d8 U/ W
SysFreeString(itemStr); % k% O% o/ X2 ]+ X- Y! Q6 k SysFreeString(valueStr); , R! G( x! K3 p# i0 D' H 8 e z" p" a% s9 Q2 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???: r! {% |! D6 H
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????& y4 i3 R# R+ v$ J: Q0 T
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2.这是request的程序/ r* ^ R( k+ l/ Y+ T
// Request a value from Extend" ^$ c* e1 L/ U5 Q b
//3 k# m; F* y7 m" s
// Initialize the variant that will hold the BSTR. Set the variant's ( a v# U% K) v0 p$ t; L// type flag to indicate the fact that this variant holds a BSTR. Place the5 q( \. v( i3 I1 \! Z. a
// BSTR into the variant structure. " T3 E4 L9 D/ A2 d# X W 0 S2 k' K6 N) i: ^/ r1 V6 P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% Y" o. q5 ]" x$ v! ~: S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% c7 @+ ?& D9 d
VariantInit(&requestVariant[0]); ) ]) y' n/ c! g$ _1 }- M! b
requestVariant[0].vt = VT_BSTR;' O1 s: c8 K. i+ O! \
requestVariant[0].bstrVal = itemStr; 5 m* u' V1 |- e/ ^# m/ w4 s. M
topicStr = SysAllocString((WCHAR *) L"system"); 2 B& \, G0 D; a9 | VariantInit(&requestVariant[1]); R0 }& b T4 p* P1 k1 Y6 I
requestVariant[1].vt = VT_BSTR;3 ^, U/ X& m" P2 g
requestVariant[1].bstrVal = topicStr; " L6 O- y9 I$ E. T( v1 X: C1 b, _8 q4 B' C D
// Set the DISPPARAMS structure that holds the variant. t/ c/ \# H9 {5 q% G4 W' L( s$ y% U
dp2.rgvarg = requestVariant;0 x; ~" o/ d/ x- [' l7 B
dp2.cArgs = 2; " s! k! w# H8 x; u# r dp2.rgdispidNamedArgs = NULL; - l( _4 V B1 b( C2 } {% j dp2.cNamedArgs = 0; 9 _; c0 B# c8 J; E + Y( x8 L+ J/ a) q7 u ?) |9 y var.vt = VT_EMPTY; * a$ t; D: ?. S' l ' u3 {- N7 ?5 q// Call IDispatch::Invoke()0 ^$ C9 W/ x5 e& V) |7 z5 ^; x( c
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hr = m_pDisp->Invoke(. Q) X: W# I8 {. R1 {" o) O
requestID, 4 m$ a' x) J9 U1 V IID_NULL, 5 w$ v* w. Q% z M LOCALE_SYSTEM_DEFAULT,+ s2 K: H# v; b) ~/ S9 N/ |. S
DISPATCH_METHOD, ( r: K4 X! s) N. z1 \% O4 T &dp2, 6 f3 v- z2 l* b& u) y &var,( B6 \: D) C3 p0 ]' y7 p
&ei,; T9 J& Z( r. q( {! {
&uiErr); n: q- r3 p' s; v! Y S1 W$ c2 H
2 i4 ^$ P9 X- O6 y6 e SysFreeString(topicStr); S' l6 L) m- H; N5 `0 c7 Q& U
SysFreeString(itemStr); 5 U9 Q# \' Z: t- S请问该程序是获得extend里面的哪个值? 0 A l% i5 W8 Z9 f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????