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: + v; {7 E. B* z( |' I: ]/ B% RName = (WCHAR *) L"Poke"; ! l7 ~/ k$ {/ I( S8 H2 ~# u / @- ?) ]% A) T! G$ h* ^2 u
hr = m_pDisp->GetIDsOfNames (( P( K, C! q. l' ?, \$ x
IID_NULL, // reserved/ B" p7 q1 e; s
&Name, // Array of names to get IDs for6 Z; h4 g# U" f; d
1, // # of names in the array) f6 Y) `+ w: ^4 }+ P+ t9 A
LOCALE_SYSTEM_DEFAULT, // System locale6 U$ Z$ m9 n4 {5 M* z# _7 s
&pokeID); // Array of IDs to fill on output7 R" q' X0 u' D& v# ~; `
/ W% y! C- Z9 B n if (hr) 7 c6 f5 n, Z4 Y5 S: P {: D- O1 t. I, ^' e& n1 V
MessageBox ("Get Poke Unsuccessful"); * E. _7 r1 \) H8 | return; ; o m9 ~% ]- F }) `/ G" U( i+ ~$ M. e( L
8 s6 S3 z# j0 u/**************************传递数据给extend**************************************/ + Q5 ~ n. I/ ?& y% o pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ f; w% Z2 _7 H) F0 F
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valueStr = SysAllocString((WCHAR *) L"1232"); / p( s7 t0 y$ t: u6 k VariantInit(&pokeVariant[0]); ) z+ o0 }5 r6 K) v, O" U; n9 S
pokeVariant[0].vt = VT_BSTR;& n l1 @% x8 Y7 Y6 B: ~
pokeVariant[0].bstrVal = valueStr; C- d% q, f- ~7 } & ` W6 w& @! I# B0 L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ j3 K5 ^: w& D* E! P
VariantInit(&pokeVariant[1]); * z! A& p p; A pokeVariant[1].vt = VT_BSTR; % S, {: `+ }' N& E pokeVariant[1].bstrVal = itemStr;/ ?/ _8 J7 {& Y" K0 _3 K! M6 I7 B8 f
: O1 A' N4 T: J- o topicStr = SysAllocString((WCHAR *) L"system");2 {/ T2 |- G) z3 M! e0 p) v4 m
VariantInit(&pokeVariant[2]); + P( c. ]- T1 L7 H. }/ M; p3 N& C: A
pokeVariant[2].vt = VT_BSTR;3 Y$ l. ^' ] Y
pokeVariant[2].bstrVal = topicStr; ! I, r5 _' l% r1 ~. R/ A5 D" N: r) ?; f9 S% y$ L
// Set the DISPPARAMS structure that holds the variant. - p0 M$ k' D, R! u* f ) R; ^ O# |9 T dp.rgvarg = pokeVariant;+ `/ d+ J/ V5 Q' v" t6 m
dp.cArgs = 3; * T5 \& G8 C7 n2 C) ^9 O* Q( } dp.rgdispidNamedArgs = NULL; " s; M+ ^ G& p0 X* r. y dp.cNamedArgs = 0;( N4 @7 r" ?! e) f
% s- G R9 X- ]% b// Call IDispatch::Invoke() 6 `6 T) ?1 M- N; T0 b5 m ' t6 o4 O- J. n: X! B% U, b hr = m_pDisp->Invoke( ' ]5 c- j. k }. x pokeID, # t) K4 Z6 ]4 }6 r3 s4 P IID_NULL,* u- j5 T+ H! @' i% J4 {' p
LOCALE_SYSTEM_DEFAULT, ; i! M; m% x$ h: G9 [3 N DISPATCH_METHOD, " g3 f- | m+ w8 ^8 U; o0 F &dp,7 t; a; ]' I5 s; d5 v1 T. l9 V9 P
NULL,: f9 E( X8 D( N8 X+ S8 M
&ei,: l0 g8 } s& `! H, E
&uiErr);; }) b5 V6 I6 y2 U) v1 @+ |
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SysFreeString(topicStr); 5 j! k) T& X- R3 | SysFreeString(itemStr);* R2 t& ]2 C( ?# n' ^
SysFreeString(valueStr); 8 C$ @$ n% r2 `; T, {, A 4 S6 N& @( b2 @# ^5 v% ~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???( \0 f( _/ {+ i% I% F/ _6 n$ `: s8 K1 D
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???? 6 W% @$ z2 F; S" w1 S, }1 r' [& ~0 X/ H* a
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2.这是request的程序 2 k7 }: n! u, J0 y ]// Request a value from Extend0 X7 T1 K; v4 y2 ~' R& G, ?3 z" r
// * o: c$ o' X2 F# {+ v+ I' @# T. g// Initialize the variant that will hold the BSTR. Set the variant's- g# F' [& c0 Z/ o; \( p2 L
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 z! H' W7 P, h// BSTR into the variant structure.! `; G0 i' ]8 e# |! E
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! B: Q6 r$ }4 M. E' F
3 U1 e1 Y( K/ J# y3 s+ F- y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ E Y5 ?2 O0 ]8 C% V
VariantInit(&requestVariant[0]); ! \3 p& A: u2 O/ }/ I. ^( Q
requestVariant[0].vt = VT_BSTR;- X( r9 x, ]; ?
requestVariant[0].bstrVal = itemStr;5 l0 a; ?" r+ }# D
% `8 f( k9 G& i X$ P/ K8 s topicStr = SysAllocString((WCHAR *) L"system"); 5 I: K+ E! @7 t! a7 @ VariantInit(&requestVariant[1]); % d) G$ C4 s5 H$ ?
requestVariant[1].vt = VT_BSTR; ' A# B* l' A" x requestVariant[1].bstrVal = topicStr;5 `+ h/ w d* x# n" F4 V, U
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// Set the DISPPARAMS structure that holds the variant. 7 B% Z& }: s4 m1 c% Y1 m6 y0 n+ ]) C1 O
dp2.rgvarg = requestVariant;* i4 z- O6 H* \' N& d
dp2.cArgs = 2;4 @4 g$ ^2 a: Q; R% H+ }! i
dp2.rgdispidNamedArgs = NULL; # M L& M& m9 ]9 g dp2.cNamedArgs = 0;# s, z$ i- J( e+ N
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var.vt = VT_EMPTY;% r9 N6 ~* v$ }, Y
$ o+ U0 w U5 N) w$ K. B% _// Call IDispatch::Invoke() & {$ x+ _* I9 I+ d' ~8 c9 W 0 ]2 E. d. |$ e% p# F, @% v% s: [ hr = m_pDisp->Invoke( * Y' I9 J2 o* N3 h requestID,1 N( l3 z3 T8 b, w" T' H& U
IID_NULL, * `4 v7 E9 d6 o" C1 E LOCALE_SYSTEM_DEFAULT, . S$ ]* v. ^1 L2 w DISPATCH_METHOD,* k: R2 ^+ G9 x5 j0 ~* ~% {; b5 z8 P
&dp2, % c5 y7 i$ L5 S3 G* X- F0 P" D& O &var, . F h5 a( u- [6 w &ei, * w% [, f7 Q/ U2 B8 C: b# r &uiErr);2 ^" c3 T4 ^! [$ I+ S' d6 h
4 e5 t- w* I7 Q SysFreeString(topicStr); 8 }2 ^* R. F: k! r7 X% C SysFreeString(itemStr);+ i* W" b8 a% _+ n M( {6 |9 S" M
请问该程序是获得extend里面的哪个值? , y0 I4 L- Z* ?) K% Y5 P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????