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: 8 s9 D: A2 L2 ^: V/ yName = (WCHAR *) L"Poke"; / G- J$ {# `0 h1 T9 P2 r 6 c" H& S0 W( Z hr = m_pDisp->GetIDsOfNames (+ M9 r3 O- P+ W7 i9 G+ Z
IID_NULL, // reserved5 m! S# I# q! _" G
&Name, // Array of names to get IDs for ( a3 |. i. j% V- [3 {6 \ 1, // # of names in the array/ B' G+ E' R4 t& L7 R6 X5 h
LOCALE_SYSTEM_DEFAULT, // System locale ; A8 Q" W; D, f &pokeID); // Array of IDs to fill on output! g" v3 B( A% X+ A. T* u) V. g/ [2 r0 c
4 ~4 n$ t" ]" ?% r2 |% f( p6 W
if (hr) 6 }! y# T3 f4 D+ J- Q { $ i/ c' h5 g3 S& ]( i; Z+ N MessageBox ("Get Poke Unsuccessful"); ( s# I* {# ?. u% G7 @; @ Y% X return;' j: L9 Y8 t+ g3 B9 [
} ! O& S: q2 E; f1 j" S& ~ ' t% O# n; ~2 M' H/**************************传递数据给extend**************************************/ F7 y9 a2 Q. T- c pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 W5 d0 [# }; [/ b/ S+ U( O & E; R5 f( o4 K9 } valueStr = SysAllocString((WCHAR *) L"1232");3 P6 f! F7 p3 R
VariantInit(&pokeVariant[0]); 1 R5 B1 L; A$ O9 g' s5 |. Y/ u8 }
pokeVariant[0].vt = VT_BSTR;8 p3 r7 ~. ^8 |- H4 X; }7 p
pokeVariant[0].bstrVal = valueStr;/ u5 Z# S- X5 C+ t" A5 p
% o, x: J7 W7 g+ c- f' M6 f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % [$ L" a3 M; T- D0 z" \+ h VariantInit(&pokeVariant[1]); 0 ]# p" [/ ?5 }( l; s$ I% O pokeVariant[1].vt = VT_BSTR;) {. e& }4 A2 Y8 m& S) q
pokeVariant[1].bstrVal = itemStr;0 L# k" S9 E8 G1 B3 I
7 R6 C* ^2 H, g$ h/ d7 B topicStr = SysAllocString((WCHAR *) L"system");6 R: S- I3 M5 S4 s3 T2 \5 W, z4 V
VariantInit(&pokeVariant[2]); 0 ^) }1 i' n; w: V' Q1 D0 g% ] pokeVariant[2].vt = VT_BSTR; 9 l* m4 f }8 K$ _+ h pokeVariant[2].bstrVal = topicStr;8 R. d3 o- b A% A
/ r8 B. G0 F) ]* m& j. X// Set the DISPPARAMS structure that holds the variant. . F( e& H9 ^4 w: Z+ S+ k( Z* ?( J; ?7 I, w
dp.rgvarg = pokeVariant; 0 p! A1 J0 z7 U. V6 T3 w J. ] dp.cArgs = 3; , Z" O4 j3 l7 r dp.rgdispidNamedArgs = NULL; ) J6 k- G7 \7 r0 v dp.cNamedArgs = 0; 7 o) F7 k# q' A' X: Z c. s% r& i0 a& x6 Q
// Call IDispatch::Invoke(). G l; V% W% F$ M; Y
( M$ d0 U# b# |- O9 P5 W( q hr = m_pDisp->Invoke(# X6 q. Z0 ~6 [- s8 D' q9 O7 \
pokeID, / s) r1 s( f/ f IID_NULL, , M/ a) F4 M- }9 P& m LOCALE_SYSTEM_DEFAULT, # \& C' Y4 o/ j" w! F O; H DISPATCH_METHOD, : h+ {" v& T+ K. x! g &dp,5 S) y4 X& [" z0 \$ E* C3 z B
NULL, 5 {0 S( |+ h5 y q8 K4 D7 b8 F &ei, $ M% }+ d3 F7 F) u3 R4 O; r &uiErr); 4 ?7 S2 o) ~* Z) _ " O/ M- ]5 {( Y SysFreeString(topicStr);% b* O" l" l# ]2 X& s* A% P4 Q
SysFreeString(itemStr); $ I. V/ H& P" a+ w7 M: c; F) a# m! a SysFreeString(valueStr);( S2 E! I% K, ?" ^9 S
0 v& ~. ?0 ^( t0 C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??? & {" G+ n7 N/ v) V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???? \$ k& G1 l$ d. D2 E; B; a- @
3 f9 C, E* F' P: Y) l
: U$ E& [: B) N9 J# m& g7 g1 n
2.这是request的程序 p3 v4 {7 s& s5 O2 s6 s# T6 n// Request a value from Extend 2 ~# t0 o J4 \/ N& Q// # ?" C) [% H T2 c// Initialize the variant that will hold the BSTR. Set the variant's : Z4 v% K% ]5 C B1 C; \9 }// type flag to indicate the fact that this variant holds a BSTR. Place the) H+ {6 V+ ~8 k7 Y- W; f
// BSTR into the variant structure. 5 l3 b7 r* u, S8 ]( O/ ? " a+ E& s8 u* X4 ^% j. D( A9 K# c requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; Y/ }( L( ^9 J$ v# E , l( m- X$ r% M. o7 ~$ C9 b4 W' W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + M# H) g# L" P+ ~. W5 e VariantInit(&requestVariant[0]); ; T( x4 }2 {4 q
requestVariant[0].vt = VT_BSTR; 1 a% l; L+ n* W& Q! u5 ]/ r requestVariant[0].bstrVal = itemStr;5 c+ h* M& _: A( Y5 `
: A5 C% Q' s/ f+ O2 Q& W I topicStr = SysAllocString((WCHAR *) L"system");+ a( O/ B ?# B5 J' `: z5 C/ i& R! X6 o
VariantInit(&requestVariant[1]); ' z/ o$ q3 E; M6 p requestVariant[1].vt = VT_BSTR; ) z" Q, ], i4 b" q5 b8 Q7 b requestVariant[1].bstrVal = topicStr;: Q% \5 ]- d D ]8 h( g( ]0 s
- w/ o# ^/ y$ I4 H4 v; c& t// Set the DISPPARAMS structure that holds the variant.; M3 b5 z5 `; k0 v
$ I' N6 H! v. a2 k3 M* b9 L2 s
dp2.rgvarg = requestVariant;" L7 ?+ R' Q' e: Y7 |- q0 G
dp2.cArgs = 2;& c% h) c( u% m$ P! C) P( A
dp2.rgdispidNamedArgs = NULL; - w8 F6 W% W4 l8 |( m" }8 l dp2.cNamedArgs = 0; + T2 y$ C- j/ t$ D $ W2 R: }9 O# l var.vt = VT_EMPTY; 9 |4 f5 t1 c* |4 {" o + c1 c( D/ y% a+ L# p// Call IDispatch::Invoke(); `6 I5 G* z' O" Z
8 o+ c: k+ w; r7 V* e
hr = m_pDisp->Invoke( 0 M- j0 Z0 M+ D! s3 M7 g requestID,% |# r" Z: b" H1 E5 a" Z" @
IID_NULL, k# X; Z! F+ I& S, O* J8 y: {
LOCALE_SYSTEM_DEFAULT, # Y2 r: x `8 G+ e# U8 x DISPATCH_METHOD, 7 E, O. X0 O9 X6 C% Z% ^# {# Z &dp2, % U! V" Q. ~# Z& ^( [: e9 f &var,# `+ P6 Y5 B. f8 T; D
&ei, 8 R8 A+ r4 O% Y1 D+ |* Q &uiErr); " |# n2 {- }* V: i5 k7 [ S: k
SysFreeString(topicStr); 7 Z6 v5 z- y- y1 u# a. ~! N$ n SysFreeString(itemStr);0 i5 q# m7 @1 i3 d+ n
请问该程序是获得extend里面的哪个值? / c- e; l* J1 ]7 X! 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????