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:% k/ r! s* e' \1 d7 D# X4 S9 A
Name = (WCHAR *) L"Poke"; : h% d+ y, v, i) h & N4 Y& [) @+ Z/ V. i
hr = m_pDisp->GetIDsOfNames ( 1 \/ t$ F+ ~$ \* v+ S$ {4 i& n IID_NULL, // reserved! q" v( f! z( x0 W- A6 q8 Q$ {
&Name, // Array of names to get IDs for6 M$ X* Y+ r/ u
1, // # of names in the array ! q8 @# c( B3 K0 r1 w LOCALE_SYSTEM_DEFAULT, // System locale3 b* Z! ^& V& S* [5 `
&pokeID); // Array of IDs to fill on output# [% W; R$ d# u4 }4 p. A, K
% b0 ]. J% Z: b- U. @- [9 m7 ?; S if (hr)2 O) g7 P b5 o- q
{ ( ?( |( X" j, P9 X3 r) P MessageBox ("Get Poke Unsuccessful");2 i. a( }9 l6 _$ Z9 E' e% J
return; . |# b" \6 A' ^' ?8 M; m5 U } - O. Y& f @' y3 G* r & N4 b. H8 P1 }/**************************传递数据给extend**************************************/0 r' H& W c# e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) o! w) V, K; e- n* A4 S & [$ a |& Z) E a' r5 L valueStr = SysAllocString((WCHAR *) L"1232"); 0 w9 u/ @) P" p+ A+ c VariantInit(&pokeVariant[0]); 1 G# k7 M# l* y- U4 G: m
pokeVariant[0].vt = VT_BSTR;2 X( O+ X; q' e$ r" M4 r
pokeVariant[0].bstrVal = valueStr; * D; g- `* N7 J/ ^0 I/ K, ]# k) ~$ H$ `* Q% `2 o4 @/ y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 }2 u% U; A! P0 C
VariantInit(&pokeVariant[1]); # ? j4 l7 d3 a0 N( G+ Y% A pokeVariant[1].vt = VT_BSTR;' @) L- X2 J2 H' p' r
pokeVariant[1].bstrVal = itemStr; $ |1 O7 k+ q9 u: j8 X9 l+ L* v7 k9 J
topicStr = SysAllocString((WCHAR *) L"system"); % J6 i' \3 Z3 j& V2 c VariantInit(&pokeVariant[2]); 6 \6 t% {/ N# n1 y3 D% O pokeVariant[2].vt = VT_BSTR; 9 r/ l3 r: W! f- p c" g pokeVariant[2].bstrVal = topicStr; 1 [1 ^6 d6 y7 j! C# M) r4 B$ E5 [0 [, D' G
// Set the DISPPARAMS structure that holds the variant.6 E0 ^( R# j. D# y
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dp.rgvarg = pokeVariant;+ e/ @; s7 } L7 x) C$ s
dp.cArgs = 3;! r1 U. O: ]. k2 E; j: b. z6 \9 i5 g+ _
dp.rgdispidNamedArgs = NULL;! |. N' K$ D, L* h
dp.cNamedArgs = 0; 8 B" F+ @2 {' _( [$ ` 6 D; H3 K6 V6 w7 k" T( ?// Call IDispatch::Invoke() 4 B' q) N$ H3 n8 p4 l8 h& \. c 2 R. p+ x* D1 u3 P9 y! n; P, ]; m hr = m_pDisp->Invoke( ; g8 c2 s9 B! q3 K+ l6 g pokeID, w$ f( q5 C& K& I7 T" W
IID_NULL,3 @1 W- x, `" Z, j; I
LOCALE_SYSTEM_DEFAULT,3 @% l# {8 E+ {1 A# u5 `1 ?. V
DISPATCH_METHOD, : N. e; @7 |: p- L &dp,- K. c% E3 V: R z+ j$ v
NULL, 0 r( T: K, H$ E# a &ei,; {3 \$ b# r) ^+ b
&uiErr); W4 u8 P$ ?& F4 o* ^% f3 s' g
8 f1 K8 ?! h% `' i5 c SysFreeString(topicStr); & d* I3 Y" K7 Q3 a* } SysFreeString(itemStr);! j% V7 @- R9 o/ F3 i
SysFreeString(valueStr); ' f" s" ~7 [7 i2 W* J ) L; H1 P- M, ]2 c* D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??? : t2 W- B* o3 i5 R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???? r0 N6 [" F, j- c9 Y; D! J
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2.这是request的程序8 Y" U, m! H( J% \, _1 S
// Request a value from Extend 6 J2 x" \2 E; e( u$ V// 9 [9 ?( s9 O1 X/ a" m0 r1 @// Initialize the variant that will hold the BSTR. Set the variant's 6 y! D! O: o3 r% ?4 z T// type flag to indicate the fact that this variant holds a BSTR. Place the J; N, L8 `3 X7 t
// BSTR into the variant structure. 6 N4 U2 U6 d, M9 t2 l/ G$ n& O7 v! Z 5 z# U/ s9 E3 J5 ?. _) Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 |# B- S# C8 U# L- k , E4 z; E8 I; s, A& ~8 I$ { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% B C8 u- \6 x- R- p4 r5 v
VariantInit(&requestVariant[0]); # x+ Y2 h# V, E
requestVariant[0].vt = VT_BSTR; & p1 v9 @5 r2 K- x) x- t( N: T requestVariant[0].bstrVal = itemStr;* M/ [. n( v$ G9 J
+ m1 B/ P3 w" x1 w topicStr = SysAllocString((WCHAR *) L"system");6 `, P0 }+ B. g; Z
VariantInit(&requestVariant[1]); * m) Y, [+ ]0 O requestVariant[1].vt = VT_BSTR;. x- C# W s7 T# T8 d) t
requestVariant[1].bstrVal = topicStr;& p% Y' f, Z* y" s. s3 Y0 g
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// Set the DISPPARAMS structure that holds the variant.8 Y/ c, x& c$ A8 n
$ K" E3 R; i( d Z7 K/ t dp2.rgvarg = requestVariant; ( ^: \7 r: S J) N dp2.cArgs = 2;* J4 D" q9 `0 B2 @5 l K- L
dp2.rgdispidNamedArgs = NULL;2 Q* Z4 P4 h: B1 C8 Z
dp2.cNamedArgs = 0; , A$ ?+ ?( W, g4 Z . J# A/ X) p8 Z var.vt = VT_EMPTY; ; h+ S4 c- \) F k) l1 N K+ t! H! Y2 |/ B
// Call IDispatch::Invoke()1 J: a* x: p& s: w7 U
& R+ ~( B% z2 Q" r2 d ` hr = m_pDisp->Invoke( ( Z* B3 A3 W& }8 A! H/ p/ R" k9 y requestID,4 Z2 l2 ?$ c# ?( ?4 t
IID_NULL, 9 }5 z: s5 _6 N1 ]" m" v; N LOCALE_SYSTEM_DEFAULT,2 A) l4 {% O' d& @0 |1 h
DISPATCH_METHOD, $ J. i$ ?! ^1 }' q* I &dp2,% k8 o- w9 L0 w
&var,' J& C2 f; X2 l, d6 `9 \) C. L. a+ t2 S
&ei,% ^, _) k6 R( H* T" Y7 o4 y* p' @
&uiErr);9 f) |( @- }0 j- H! d7 ?. o