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 W6 g! N' V3 DName = (WCHAR *) L"Poke"; & }% X; V( {* ?" R0 ~, b 9 [, v9 J. b0 O D7 S# d
hr = m_pDisp->GetIDsOfNames (9 B& p) T! P4 B8 C- m' r# |( b
IID_NULL, // reserved( j/ _0 H- \3 w2 @* N
&Name, // Array of names to get IDs for1 l+ E# Y$ `- U' c i" o
1, // # of names in the array3 ]- Q. T* I( \# a- Q
LOCALE_SYSTEM_DEFAULT, // System locale * a$ Q# I$ C u$ @ &pokeID); // Array of IDs to fill on output 7 J, e: T# a1 M5 m$ {: @2 C# Y + w7 I. h' R( N
if (hr) 4 r& Y& q* S% ] { W7 V) c( Y/ }& E; t0 m/ u0 g MessageBox ("Get Poke Unsuccessful");% L( }) Y/ |- v0 v5 X" [& y
return;, F) X4 z% R: T' ^6 B+ B$ U9 Z
} 8 c' N$ e4 Z! a+ ]9 U! } I2 y, b8 J, H8 i
/**************************传递数据给extend**************************************/( E }4 |; J; j F" { T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : R" c6 U! j) i' ` \ & J' F$ {" t r c" _2 a Z' y valueStr = SysAllocString((WCHAR *) L"1232"); / x& i3 ~! h0 f; J1 c$ s VariantInit(&pokeVariant[0]); " q8 W% a, G1 C3 Z7 t pokeVariant[0].vt = VT_BSTR;2 ~* Q" E/ Z) ^2 ^4 I$ T* I
pokeVariant[0].bstrVal = valueStr;& G- s- ^* o2 e: M- D
- ] _/ q0 r' l( U' Y+ f# y0 E8 a/ K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % j' Z- s# @3 v2 a* o VariantInit(&pokeVariant[1]); 9 U5 U3 d7 K$ P9 l7 l2 P, ^9 I7 a pokeVariant[1].vt = VT_BSTR; 9 W( O6 m5 P1 b& Q4 M pokeVariant[1].bstrVal = itemStr;. O. y& `+ }! `" W* C/ D9 Y6 \
" K) s+ [9 o! g x7 Y2 {9 ~
topicStr = SysAllocString((WCHAR *) L"system");+ A2 q8 N( Q( d6 L4 t: l7 B) y
VariantInit(&pokeVariant[2]); 3 X+ S' s& s8 S5 L6 j% | pokeVariant[2].vt = VT_BSTR; + }7 E- `1 K$ b pokeVariant[2].bstrVal = topicStr; $ } f+ b4 w# q9 d- N8 S . C" L$ `3 u7 f// Set the DISPPARAMS structure that holds the variant.8 Z) N! b( X1 a6 l5 Y4 w
, K1 @! l& f1 @3 Z/ _9 F# O dp.rgvarg = pokeVariant; 7 B6 ?8 L n/ Z4 p dp.cArgs = 3; A. A) p# x1 C: l7 L; h
dp.rgdispidNamedArgs = NULL; $ [( J4 u9 k C/ v9 h dp.cNamedArgs = 0;) I" y# ~% C1 p( a. h! a
! E. P% ?. s' i$ W% T
// Call IDispatch::Invoke() & X: |5 X& f) A2 ~( W( n2 j 7 ]+ C0 U8 s2 [1 G. k1 C- p hr = m_pDisp->Invoke( - E2 |" G$ Z! i% K& Q* z/ K pokeID,5 ~4 i* k4 F: f+ o0 B6 x$ g
IID_NULL,& O, S# z" _$ U T; r
LOCALE_SYSTEM_DEFAULT, + R8 A/ d) h$ G9 f' R% Y DISPATCH_METHOD, / ~/ C7 {& m( H) l &dp, : Y2 i% g- ?8 w3 W' V) ~ NULL, 0 y6 c4 X0 ~7 F* r &ei, 4 _6 H/ N5 p7 `4 f- a3 Q- E &uiErr); ) o f) \+ }* O, \% y( l1 M$ W& a n
SysFreeString(topicStr);8 Q4 G+ V$ M0 |9 x1 V X9 n
SysFreeString(itemStr); 5 V% N7 C+ ?8 e/ L4 d1 I! H SysFreeString(valueStr); ! w ?6 J% A- ^3 u, l2 E8 b* x9 \
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???$ s# w* E* F9 X
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???? - b/ g; B+ ?6 {. Q u 9 m. R7 g" f1 z7 ^! G% p( d5 l, c0 i q, i0 h% b }5 Z ?
2.这是request的程序 t, P8 S% s8 Z: I$ e; ~! s0 z$ t// Request a value from Extend: \$ h; H5 w" R. d- J
// 0 r0 O% |) L* f, T- l// Initialize the variant that will hold the BSTR. Set the variant's6 ]) k# T) }6 C- i5 A
// type flag to indicate the fact that this variant holds a BSTR. Place the; a9 L. Q- K- ?0 P% m" q$ i
// BSTR into the variant structure. 9 M; J3 u+ }6 Z$ f! E 5 {- i3 R9 ?) a6 { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% Z2 a, b0 B+ c6 j8 C5 v8 b
/ B G; r$ H/ l ~/ G# m( s/ A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' f& a( r, g$ t VariantInit(&requestVariant[0]); 1 C9 X( ~* [: n! T" H$ u* G, g$ R requestVariant[0].vt = VT_BSTR;. c/ P$ y$ p. X! D8 K( D, U
requestVariant[0].bstrVal = itemStr;, A0 M. E. u* o3 w/ p6 c
* y' Z S6 B0 R( Z topicStr = SysAllocString((WCHAR *) L"system");2 Q' t6 x1 {% P/ Z$ N+ E2 ?/ I6 k' o
VariantInit(&requestVariant[1]); ) E' e4 d6 X9 z. j
requestVariant[1].vt = VT_BSTR; 8 E: F# W" E7 }. X2 i7 o; {7 _ requestVariant[1].bstrVal = topicStr; 1 L% g) D# Q" _: V$ O& e/ L# D# }5 I
// Set the DISPPARAMS structure that holds the variant.. D) o5 N$ z8 L( |4 g; B/ y# _3 n
% s/ D% P7 D0 o5 D. c4 K+ ?* N3 m5 N
dp2.rgvarg = requestVariant;* `% j7 E- h W* O6 {
dp2.cArgs = 2; ! Z. t0 w5 a: _; y dp2.rgdispidNamedArgs = NULL; w$ {" i3 D& V8 G
dp2.cNamedArgs = 0;$ v: i# K9 O+ i9 m- g6 l, y9 ^1 {1 t
/ h' e. A" q; n1 T! R' B
var.vt = VT_EMPTY; $ A/ l n6 {8 t% ]% Z/ W, B# Q: c. w, E- ^0 V
// Call IDispatch::Invoke()+ Z) |( M$ p5 ?- n
9 B' n4 `3 \0 h/ Q- [
hr = m_pDisp->Invoke( i: B0 k5 [. r! j requestID,% r% W, c# ~" v6 P
IID_NULL,! n0 V3 p6 T) P
LOCALE_SYSTEM_DEFAULT, " a A# x8 [* Y& ]( [3 ? DISPATCH_METHOD,. e* q/ ~* n2 F6 T% x. g f
&dp2, ! k+ ?" _- `$ z0 ?. @# d &var,4 Y. W) J. p- {! f' U
&ei, ; P2 @+ U/ @+ m; F# @: d &uiErr);5 i9 G5 A3 T+ R8 l
" Q* L+ P) `1 C# b
SysFreeString(topicStr); . W9 h8 A2 w u SysFreeString(itemStr);4 u$ m5 u" l; }8 x
请问该程序是获得extend里面的哪个值? 8 q% v; `9 C" i* D* ~! _0 ]( s. h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????