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:) O; w& f/ Y3 }
Name = (WCHAR *) L"Poke";( O! [3 b/ Z. y
# Z) ^/ v' r: P l) w" Y @ hr = m_pDisp->GetIDsOfNames (7 {$ b+ g2 i$ d3 r$ ^
IID_NULL, // reserved- w* E$ `, U( O0 N0 U* j+ Y
&Name, // Array of names to get IDs for( k$ G! l* H/ A- J4 X9 j7 B
1, // # of names in the array o- h' l, _. x2 C# E4 E
LOCALE_SYSTEM_DEFAULT, // System locale & h- [, Q+ Z7 o' r' O' X5 R& f &pokeID); // Array of IDs to fill on output 6 |/ m# b) Y \$ }/ m( K4 h ( D! S7 x6 L, V" B( t if (hr)- t" G/ ]& v9 }: _( y* D# }! V T$ E
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MessageBox ("Get Poke Unsuccessful"); % F* r& R5 N1 M6 n- f return;, ~6 }; u3 Q5 K g8 u- n# T
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/**************************传递数据给extend**************************************/ # Z; V2 h% u }8 G' } pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, L+ h& Q8 A0 L7 m
! Q: Z7 a# ^6 W9 X valueStr = SysAllocString((WCHAR *) L"1232");( y" h: V% ^! J6 I) x! y
VariantInit(&pokeVariant[0]); 4 W8 W) T1 l4 ~
pokeVariant[0].vt = VT_BSTR; 3 q$ k/ V7 [& R$ j6 {4 ? pokeVariant[0].bstrVal = valueStr;; J/ q9 {0 L& V. R! F6 Z {
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ t& ?- X& X5 f) z6 i
VariantInit(&pokeVariant[1]); # B/ h1 Y6 h& i5 Z pokeVariant[1].vt = VT_BSTR;8 a1 _7 o8 v" I, \5 b
pokeVariant[1].bstrVal = itemStr; " Y, s7 N f0 Q. W9 m: r+ \! M) X
topicStr = SysAllocString((WCHAR *) L"system"); ! V+ u. f7 ]7 \& i VariantInit(&pokeVariant[2]); 2 s2 n4 u4 f! [4 r* J7 k pokeVariant[2].vt = VT_BSTR;1 f+ n/ e3 U4 U9 q s$ g* o: A
pokeVariant[2].bstrVal = topicStr; ! F8 g( j; a+ R# Z# ]# `6 r) k a: S! k7 v+ F! E# v0 e6 @
// Set the DISPPARAMS structure that holds the variant.# q3 B7 J9 O! a8 b# a1 s( H, n. F
+ F( j7 x k2 Q+ U7 L dp.rgvarg = pokeVariant; + U7 q+ F( B) Z/ O dp.cArgs = 3; 8 }9 L% ]" V+ C) `8 r0 o) ^ dp.rgdispidNamedArgs = NULL;! \ H* G5 C% p$ r
dp.cNamedArgs = 0;" A, X& D) [* v- A
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// Call IDispatch::Invoke() . X! f7 j: j/ ^- `5 P" e' \ Q7 P2 i" x! h1 l# T: D/ C; w. W% z
hr = m_pDisp->Invoke( ; v: s8 i5 S2 U# @ pokeID,1 |9 p* E5 U4 C
IID_NULL, # c& j! s7 p1 C' F LOCALE_SYSTEM_DEFAULT, 7 Y8 t; f N4 y: e. l; } DISPATCH_METHOD,8 T4 k ?# W# `: z$ I0 ?" M
&dp,* ?6 i {3 p- g
NULL,% l4 w( f* }6 M( u: j
&ei,* g( o1 R' G1 g# y. ?
&uiErr);+ d8 b- M& {. D4 q( Z
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SysFreeString(topicStr); , Z4 a# T, B) a) Z SysFreeString(itemStr);" D7 V4 ]& j' b
SysFreeString(valueStr); K6 {% j; A, t" |
3 g9 v! v1 K7 @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???5 i+ `. f$ k% U
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????1 g8 G; I+ T) i) V
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2.这是request的程序: B7 I v; U# s( j _' s
// Request a value from Extend. w; @) l# G1 a0 _5 [
// + |8 k( [' I. E; m// Initialize the variant that will hold the BSTR. Set the variant's; P9 S& l1 ~. e# _; ~% H0 g
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 h! m2 s' P6 }// BSTR into the variant structure. : p6 I1 ^ u3 [ ; j+ I, z# z* b2 u. o requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 f# ^/ [- c8 b$ u, w& S5 K
" {3 a! c+ N6 N* [) x, R' Q2 N/ | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 Z+ S) {/ Y5 j7 q/ Y VariantInit(&requestVariant[0]); 5 ~0 h" s+ N) o# o
requestVariant[0].vt = VT_BSTR;' D% z/ f. c) c
requestVariant[0].bstrVal = itemStr;. x% E1 D4 v/ s+ t5 x
& h3 K# j5 v7 F' H _9 x5 ] topicStr = SysAllocString((WCHAR *) L"system"); : E1 D$ `) Z" Y( l VariantInit(&requestVariant[1]); 5 j$ P% _3 `* k# H/ {# x Y; ]
requestVariant[1].vt = VT_BSTR;$ u j6 V4 I; E. n
requestVariant[1].bstrVal = topicStr; : O. r* B+ L3 `: @; R% T7 S) P5 p) P/ x! ~+ ~! C' {+ E
// Set the DISPPARAMS structure that holds the variant. p! l6 T9 \1 M" S0 U $ o' @2 c$ W6 m" D3 D6 |; e dp2.rgvarg = requestVariant;# d1 @7 B* W7 t! M: n8 k
dp2.cArgs = 2;2 j) q' p, l5 r; g2 e" X, M
dp2.rgdispidNamedArgs = NULL;0 c/ V! Z- N( X/ ?
dp2.cNamedArgs = 0; 3 Q$ y0 B: ~# W* C, ~: y& Q2 B4 U
var.vt = VT_EMPTY;. |# i! |* h/ E. N: f$ b