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:; w! I. `7 K0 Y* ^, M0 \ j$ j* b
Name = (WCHAR *) L"Poke"; 6 ^$ R: m6 ~ ~9 A" G: u, V! J 2 Q6 l* A2 a; Q7 l a( d hr = m_pDisp->GetIDsOfNames ( ' z0 p. w) `6 }! ~% e; { IID_NULL, // reserved ' f6 m1 \; O5 x$ Q &Name, // Array of names to get IDs for 4 r9 g: ?; W9 l9 i+ u" M$ M2 v 1, // # of names in the array3 u# b5 e! u1 C p0 s( I9 [$ j+ X
LOCALE_SYSTEM_DEFAULT, // System locale/ L" [5 M3 {- H
&pokeID); // Array of IDs to fill on output ) m/ k/ Z% @3 I$ j# N9 u- g- t. H ! p9 U) t/ \0 D if (hr)9 a, n! O8 p2 N" n4 S/ D, f L
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MessageBox ("Get Poke Unsuccessful");; X( ?' a. R- |
return; " x0 s+ k# F5 d* N+ a# { ^3 R } ( N& ~2 l6 ], J0 \: u' ^8 {3 y" t $ }% A3 E6 N8 B/**************************传递数据给extend**************************************/ / F$ Y5 D, Z+ S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 S: q* u3 \: ?: J2 [1 m # L; I* {3 e8 Q& h2 d3 a& t
valueStr = SysAllocString((WCHAR *) L"1232");* c1 Q7 g: Z% S0 h$ ^5 r; ^
VariantInit(&pokeVariant[0]); ; {& _! }& j2 z e* l pokeVariant[0].vt = VT_BSTR;$ W3 w4 F4 b ^. @, {% e; i9 L( m
pokeVariant[0].bstrVal = valueStr; * b6 f( }) \: ?5 V2 h0 z3 C+ o, ]5 f; l( L% e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 d( i' E* E' e- h' s% Q VariantInit(&pokeVariant[1]); # _ s- M( Z/ ]; r pokeVariant[1].vt = VT_BSTR; 9 ]4 l0 {( F: K9 M; Y b pokeVariant[1].bstrVal = itemStr; : j5 W8 |$ D& M5 T. R' J 6 z2 d3 I k$ M7 _# N, j4 J" X topicStr = SysAllocString((WCHAR *) L"system"); , E, K% k) @' {; I+ p VariantInit(&pokeVariant[2]); 5 f# ^- P0 Z: @ pokeVariant[2].vt = VT_BSTR; ) [$ f6 }- m* z, x4 j# E pokeVariant[2].bstrVal = topicStr;5 Y# Y) ?8 s9 Y# H9 Z
# X+ a. Z( C. @. o7 B// Set the DISPPARAMS structure that holds the variant.4 D% J4 I% e @! W& z( c7 r
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dp.rgvarg = pokeVariant;, X. Y: c) L/ k4 t8 q
dp.cArgs = 3;/ M! H8 v5 r. F& r3 _) D4 {
dp.rgdispidNamedArgs = NULL;# R1 ?( j I( _$ |
dp.cNamedArgs = 0;# P2 H$ R! J8 x3 h: G% m5 k
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// Call IDispatch::Invoke() 0 Q$ l5 J1 N+ b+ k 6 n8 g" g* Z) L# Q hr = m_pDisp->Invoke(/ _- y6 O/ s: X8 Y5 Q' Z
pokeID,) l! L' B1 e- @% |7 u
IID_NULL,' X- l* k0 a. g9 d
LOCALE_SYSTEM_DEFAULT, " s+ Z. W* @2 H) D. G& L DISPATCH_METHOD,4 k$ I4 D( q B+ {+ k
&dp, % E/ i' B$ o8 n NULL, 4 g& H0 X; t- O% g2 b4 O: Q &ei,3 W+ S! Y8 ^; S9 c5 T7 I
&uiErr);7 g7 d f; y; s. F6 h t9 i2 j- z7 x
. O; ]5 }0 m" M! u7 L6 b7 q SysFreeString(topicStr); * F6 O& A7 Q2 G5 p SysFreeString(itemStr);& n) V6 T$ q1 ^$ J! a' F
SysFreeString(valueStr);# _3 R4 r2 \4 w. ~3 Z- @
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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??? * c: M C8 J5 ~- D W: N2 j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 Z2 G9 d/ T( U) Q* |" D5 a5 @# p z( l0 m1 x% G
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2.这是request的程序# h- ]& B g! ~& W
// Request a value from Extend # f: k. p: A7 g// & ~) a3 i. q( x* e// Initialize the variant that will hold the BSTR. Set the variant's 7 r( l7 m( T- m" \// type flag to indicate the fact that this variant holds a BSTR. Place the W, l/ M1 E( a, U* y// BSTR into the variant structure. : o: q6 `& R6 a* q) b6 F ) f. m. r# L8 X" _3 d2 t requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 u2 J: O0 ^1 `) F. W6 C3 n- a2 E 1 I0 N) d% D; O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& s, E, O2 H, N9 b
VariantInit(&requestVariant[0]); " X9 a! E% b# g: C requestVariant[0].vt = VT_BSTR; # P* q8 `9 E6 ?3 I9 Q) z requestVariant[0].bstrVal = itemStr;6 \' r7 h( \1 Q6 T8 o
& `" |3 T3 p! T topicStr = SysAllocString((WCHAR *) L"system"); 1 |' s: p/ Y4 i VariantInit(&requestVariant[1]); + F. c% w4 H: s4 ^( {
requestVariant[1].vt = VT_BSTR;: q8 ]- \+ G% `( _8 O3 s: T
requestVariant[1].bstrVal = topicStr; # w5 G9 r k9 r9 Q7 k% z# n1 ^/ ~ : X v) `( P$ ^& `8 \# Z9 q// Set the DISPPARAMS structure that holds the variant.3 A& `7 o3 k: v; V$ c
0 n0 G! L& u1 H- o, L dp2.rgvarg = requestVariant; # U$ }2 W' ?* u6 ~% v- w0 u dp2.cArgs = 2; 2 `8 d0 Y" j& ]$ n2 p2 L dp2.rgdispidNamedArgs = NULL;- w- ?6 S+ `' P3 L% t. m
dp2.cNamedArgs = 0; 1 n% x ^& ~4 {7 o: V+ t , L, T0 M. O. T+ R, J5 q2 X4 w var.vt = VT_EMPTY;! G* a7 O9 M6 {" w2 ]" Y
, h7 I# X7 {/ z4 b# t3 j, A// Call IDispatch::Invoke() * R3 K' ]' k) e# P3 K3 p% G$ i) J( f5 W4 }
hr = m_pDisp->Invoke( : r4 J2 t9 Z9 m" R* o) j requestID,' W! c% A: i9 R% G# Z
IID_NULL, 0 D4 v! [8 l5 ?% Y O LOCALE_SYSTEM_DEFAULT,' k5 v7 c- _5 C6 Q
DISPATCH_METHOD,7 S3 a+ v) ?) i9 d: a. D& t8 d
&dp2, 7 N% N4 E& C, g+ @' x0 C &var,4 K' D0 p r( V5 r$ o: d `$ T2 V
&ei,1 D3 w! T7 j K* [
&uiErr);: o( `3 M6 H3 }$ k0 K
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SysFreeString(topicStr);; o7 s, }( `" A2 a( K T" H4 o
SysFreeString(itemStr);- _- F8 K! u4 t$ i. }, K8 [$ E
请问该程序是获得extend里面的哪个值?+ ~: S+ \1 O, `1 T8 K% R" ^
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????