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:/ {3 `: P. L- v9 e* @) y( o# l* a/ I
Name = (WCHAR *) L"Poke"; * K3 `) J, p I0 w( _. o . j* V3 z. a' a hr = m_pDisp->GetIDsOfNames (9 E+ d: o, z+ h( j
IID_NULL, // reserved$ }6 `) z( Z3 f- L d" R! B
&Name, // Array of names to get IDs for: H) f4 c, z% c$ Q, _# w
1, // # of names in the array / B+ n% J! Q$ l7 V! U LOCALE_SYSTEM_DEFAULT, // System locale) U& U! ~1 P, \$ B: {
&pokeID); // Array of IDs to fill on output ; Z4 q: f- @: ^ ^ 3 [% A# `3 U. m6 F3 G if (hr)5 C2 r+ v. Y0 s4 T9 F
{! B; _+ L5 u& n% r p& p P+ Y
MessageBox ("Get Poke Unsuccessful");" R. z6 r- k! u) D! _3 A0 a
return; . L* Z d% A) B7 N* G& f) v }2 V/ a% C5 b. Z0 p
* [" U2 U" ]/ z/ K* n. Y& r/**************************传递数据给extend**************************************/9 Z' w" f5 _/ R! _" c
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 r- L _. ?; _# h: \ y& n 5 m5 a. P+ K! O& x4 u valueStr = SysAllocString((WCHAR *) L"1232"); % v/ O3 k7 Y$ t$ f VariantInit(&pokeVariant[0]); L. K; ]8 }* E, T
pokeVariant[0].vt = VT_BSTR;# T6 C i, M$ }% D. E& L
pokeVariant[0].bstrVal = valueStr;. h( ^; Q6 p/ c+ d0 z; O
( Z n3 |8 P w5 x& a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. E& N1 W4 Z! f% o6 p
VariantInit(&pokeVariant[1]); + n: A4 \% T7 u
pokeVariant[1].vt = VT_BSTR; , b/ X1 Q/ L/ y# U pokeVariant[1].bstrVal = itemStr;' T4 r5 [% E. W
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topicStr = SysAllocString((WCHAR *) L"system");/ c- w+ z& F/ [$ ?9 f% l
VariantInit(&pokeVariant[2]); , t& i6 ]) O0 |0 w( R
pokeVariant[2].vt = VT_BSTR; 6 C: ~ z2 g$ C/ N, u pokeVariant[2].bstrVal = topicStr; . {( {0 r% d6 S9 o. c+ R6 [) u2 a3 J3 C9 H; Q
// Set the DISPPARAMS structure that holds the variant. ; y2 b: J; o8 l0 {3 m % F0 @& p9 W4 K2 h" ^ dp.rgvarg = pokeVariant;4 n a# Z. Z; w# z
dp.cArgs = 3;! q7 s3 P, g$ p2 b5 I! n" i
dp.rgdispidNamedArgs = NULL; # m( i6 }# U% E+ t- o9 E: N dp.cNamedArgs = 0;' R7 G# Y# P5 {! E* O) v" F
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// Call IDispatch::Invoke() 2 m5 U3 k" W& L# I* ~- u# r, p2 @
hr = m_pDisp->Invoke( 4 W8 O) i- m3 N pokeID, & `' |6 _9 P* I6 M' y) l2 }. F IID_NULL,8 n$ i3 S0 m( W# v: u1 C1 T: W
LOCALE_SYSTEM_DEFAULT, : V1 Z) Z; a5 o G9 o DISPATCH_METHOD, , n$ V9 |' e: {2 P$ q &dp,* G& |6 U( Q4 E; {3 c$ Q
NULL, 2 v8 \7 h5 ~4 z; m2 I8 |; v+ U &ei,3 c% X5 [; z& V" W+ R) g- d" D
&uiErr); 4 |/ X) q. C" w4 @& \1 c/ u0 H2 }1 e7 F
SysFreeString(topicStr);/ R, T# w, v% R ^. W `! P
SysFreeString(itemStr);0 f6 u8 ~$ [& Z3 F) e1 ?" N
SysFreeString(valueStr);7 `1 L6 U+ O; I p
8 y, d- a9 J7 [# R
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??? & P B7 ]1 L2 f1 S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???? % U' T0 L$ U8 u T, s9 Z( P" }/ D% v6 Z( x' b
5 D6 U; q9 c3 G: F! E7 e2.这是request的程序 C$ X( ~7 E4 A0 b// Request a value from Extend 4 a: n5 u$ R- R4 Y: c2 B// 7 V) M4 @1 G! S( E// Initialize the variant that will hold the BSTR. Set the variant's! D2 x; z5 X( J# ~% ^
// type flag to indicate the fact that this variant holds a BSTR. Place the8 I7 i' G) [3 N, B; y {& j
// BSTR into the variant structure.- Y0 E5 F0 Z Z5 i3 M2 v Z# v; t
, f3 v4 g0 f$ [* x M requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ]$ s g4 N! O9 B, P; m a , c f7 R; S, u& o& j3 w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ O2 l" C* p. J+ h+ F9 ?+ X# g' {
VariantInit(&requestVariant[0]); 1 z4 S' Q: e4 K5 j requestVariant[0].vt = VT_BSTR; " ^% C! e2 B+ w$ X% [. O; U' A requestVariant[0].bstrVal = itemStr; , f0 p/ x0 d) }* n0 h4 @( a" W9 f! E. O7 |: J; q6 t
topicStr = SysAllocString((WCHAR *) L"system");; [+ i' l: V: ^# _( e
VariantInit(&requestVariant[1]); - ^, z. ?2 r8 `4 i/ j: ~: ?" U% ?7 h
requestVariant[1].vt = VT_BSTR; 9 f) m7 k/ A% `9 D requestVariant[1].bstrVal = topicStr;: N- V9 g; N/ f3 h7 C. f
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// Set the DISPPARAMS structure that holds the variant. , e& {5 F* }0 K* P B# W - b0 j+ w, c0 h( c dp2.rgvarg = requestVariant; 5 n. H7 |. I5 t0 E, M dp2.cArgs = 2; , p+ B; F, s8 Y9 j* h! H dp2.rgdispidNamedArgs = NULL; ) _6 \ c: y4 q9 W4 w dp2.cNamedArgs = 0;4 }& j. A! O) R/ V
) I3 c8 i% k0 {5 a var.vt = VT_EMPTY; ) m. ?& {# u% p# m) ]* D9 E e7 F+ k, X/ W6 I( u
// Call IDispatch::Invoke() ; _8 _! p/ g l, W7 S, H) e5 e3 O+ P8 u- m3 j) n8 Z4 x
hr = m_pDisp->Invoke(" d3 ~2 D% Y" l4 V! m" ^ A2 p
requestID,5 ]6 x0 j7 c& a
IID_NULL,& }/ H$ \9 T* s& N
LOCALE_SYSTEM_DEFAULT,* [% e( n' h) @3 [$ H" A# s
DISPATCH_METHOD,, P Q. p8 Y3 m1 R+ _
&dp2,% @/ i4 z0 ~, X! p9 {
&var, ! |2 ^, K7 u# Q& V) u &ei, _0 P) R! P# A0 F( C$ k &uiErr); 2 u$ d$ S |+ }* T: X9 U6 S # Y1 h* M* q% F8 g9 h( D SysFreeString(topicStr);0 W- f; h6 [8 b: g
SysFreeString(itemStr);" O9 Q4 h, O# F- l% b- s: }' z
请问该程序是获得extend里面的哪个值?- e7 d0 ]; C0 F1 u' 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????