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: ; r( g6 U2 o4 V$ G5 c. H+ }Name = (WCHAR *) L"Poke"; 9 Q, L; h4 M& ?0 c! B0 E" | + x; j8 I- k7 M' _# V# `
hr = m_pDisp->GetIDsOfNames ( : K% O2 A% l* Z IID_NULL, // reserved 4 b! q: O1 p' D! a &Name, // Array of names to get IDs for8 n: k, p W. `/ j3 p
1, // # of names in the array 8 p* y$ _' t n6 q LOCALE_SYSTEM_DEFAULT, // System locale ^, c; e2 J" O &pokeID); // Array of IDs to fill on output 6 ?' e7 s- ^6 O2 C, q 0 S( p/ V3 B* N
if (hr)2 Y& W0 }0 S- S$ |. |; p
{ 8 J) l9 N! T, V7 z3 W Y% x+ A D MessageBox ("Get Poke Unsuccessful"); 8 X+ I. R) Z* Q/ Q1 l return; 0 r2 e# |, ^3 e k( U } 1 w+ }: z; Z0 @8 P; }9 @4 a4 ~; Q: q9 A3 [1 C0 X" h
/**************************传递数据给extend**************************************/# x1 k% Z& h. b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 G* a2 F5 D0 H! p7 s
! b. V" F4 l; O9 o# W0 j
valueStr = SysAllocString((WCHAR *) L"1232");1 @; Z; F% K% ^8 j t8 Z
VariantInit(&pokeVariant[0]); . Y( U0 ?1 A! o2 `4 M% j2 ^ pokeVariant[0].vt = VT_BSTR; : `: r- X1 ~6 [) Y0 S* k pokeVariant[0].bstrVal = valueStr;0 o. |. t5 U+ s+ g
% b L; {+ V9 h+ y& V6 D* B
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & v0 d" r5 d0 E8 \. ^, p VariantInit(&pokeVariant[1]); * c! [4 j/ G$ G4 }8 B pokeVariant[1].vt = VT_BSTR;9 O" j0 R; Q0 a1 @; ^4 I& t, `
pokeVariant[1].bstrVal = itemStr;" }; ^9 p& Q1 S6 F0 B2 ~0 e0 ]5 u+ {
; ?0 f! t5 T7 Q: V7 E# B) y topicStr = SysAllocString((WCHAR *) L"system");, @9 z0 Q7 t% y" t, d; {
VariantInit(&pokeVariant[2]); ' S$ l4 _& E+ k, p9 o. q
pokeVariant[2].vt = VT_BSTR; o. c+ ^4 d- p! Y* B pokeVariant[2].bstrVal = topicStr;; D7 a* T* ?. m
, X" a+ C0 T# U$ t8 k0 f; f// Set the DISPPARAMS structure that holds the variant. : D, }$ {2 l# h* z$ ?; P 8 p$ @& V. i t dp.rgvarg = pokeVariant; % Y5 }3 Z' k! Y1 Q: P dp.cArgs = 3; 4 {' ~2 H) Q6 \% u' J dp.rgdispidNamedArgs = NULL; 9 i, Y1 E |3 g/ N! A dp.cNamedArgs = 0;% \. V7 ~" o, a Y" D! A, ^
3 u% r3 v G% o9 n) z- P# A i// Call IDispatch::Invoke()" K. J9 i7 V! S3 Z i
! v& _1 K; B9 w& E7 ^' H+ x hr = m_pDisp->Invoke( $ f5 M' h, u& q. k pokeID,/ c- B6 J H8 U, ^* e, j; a9 [
IID_NULL, n( @3 O" l* I5 r- o* k: p
LOCALE_SYSTEM_DEFAULT,) I! K- O# o7 _9 h$ S( M9 W$ b, v) _
DISPATCH_METHOD,; [% W9 h& |4 G* K# t7 b! l# U# p
&dp,! Q- K0 b% T, c+ ]5 {/ Y# v
NULL,, H) v: D( [; {/ k& Z0 f
&ei, / |4 S3 g9 O; d% ^- u7 P. e# \4 T &uiErr);! R% v7 E' K3 F! z& c: Z0 B. P
3 D# c* E" U4 G- }4 K. `' V SysFreeString(topicStr); / S. K9 i% ^5 W/ M2 G( [$ I2 r. g SysFreeString(itemStr); , f9 H: T* z1 P SysFreeString(valueStr);- L' B6 K8 h7 _ V/ q
/ c8 j2 C/ m% p0 @$ y0 y5 z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??? & Y+ U' i* q! ^+ c; N* ^& ]+ ~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/ f4 |# T) k8 r+ d5 r
5 E3 D" B8 |! e; o* z
9 g! a" x* {5 I; Y8 D
2.这是request的程序8 q& l* y/ U% n& [4 N
// Request a value from Extend3 {' ~) q$ U3 `/ {( f$ D. ]
//. I" N* p) R; ?
// Initialize the variant that will hold the BSTR. Set the variant's 3 d/ D. q5 @: ]; n// type flag to indicate the fact that this variant holds a BSTR. Place the7 w8 _" n1 k- U6 A
// BSTR into the variant structure.9 N& g7 J) i& X3 n
8 l) D! H G8 O: g$ w
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 l6 B' I; P6 i9 N' M ! k( K- o) `1 o: w$ V7 K; g" l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / o) w- F5 q! f' N- ?0 k: E0 u Y3 B VariantInit(&requestVariant[0]); 7 l1 i- P1 S' y9 G. n/ k requestVariant[0].vt = VT_BSTR; * c$ L2 e a; G d requestVariant[0].bstrVal = itemStr;$ M) [5 t2 t. C$ ]
3 @/ `) e" F/ p e8 A% q ~1 f topicStr = SysAllocString((WCHAR *) L"system"); * ~5 x; E: G: D$ s* O+ U0 M# F VariantInit(&requestVariant[1]); + u+ J& V& P1 W( H" p
requestVariant[1].vt = VT_BSTR;6 G( P. Y0 o" P/ n- B. q) C
requestVariant[1].bstrVal = topicStr; I$ u: v0 D7 r {1 c0 Y
8 b ~- y# i1 C4 t6 Z7 }// Set the DISPPARAMS structure that holds the variant. . j; j' B" ~8 f1 U- q+ e: m4 W6 ]. J" y4 Z
dp2.rgvarg = requestVariant; ! T7 M/ s$ H" x$ `6 | dp2.cArgs = 2; * a$ y2 K" \9 X: z" r dp2.rgdispidNamedArgs = NULL; 7 T% @ M( q: t8 Q& S dp2.cNamedArgs = 0; ; V$ ^! p" }/ ^ $ |+ C, S5 D- h. R, s$ y5 C$ O var.vt = VT_EMPTY;/ _, p/ ]4 C0 l6 \; l L1 T* H
; O* l# M3 ?% n
// Call IDispatch::Invoke() * O! v5 K% f! a8 z) W" r / @7 @2 e7 K5 k0 B T" H hr = m_pDisp->Invoke( 8 Y1 g5 C' E- t% Y' i requestID, - S# ?8 K- u1 z; @8 r IID_NULL,: x/ f) \" L( z3 h* _4 ^& `; }8 s
LOCALE_SYSTEM_DEFAULT,# Q2 r) r- [* h3 I- c) u8 J) R
DISPATCH_METHOD,- L3 z+ S1 Q3 T) w* m
&dp2, 4 F* M' z/ V& e$ ^) H3 w! h G( M! m &var, T3 @. F+ z/ S0 O' c) |
&ei,/ ~2 i& j( M0 S1 ~# s8 U5 M! R
&uiErr); : @3 X( N7 u, D* }8 ]' k# m% \6 B + R8 D4 u( W9 I3 H1 x, _ SysFreeString(topicStr); 4 W! R7 C5 V/ }+ x) f/ t) } SysFreeString(itemStr);3 O6 k5 A5 d& R2 c1 ^7 n# p% g
请问该程序是获得extend里面的哪个值? , K0 a8 N7 z( H- [; r) U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????