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:7 {2 w4 f6 |3 [
Name = (WCHAR *) L"Poke";' M; v! i: t2 S. Q
/ J! ?, V, u+ T' k: }# W, R& | hr = m_pDisp->GetIDsOfNames () K M+ c E# \& I3 ?7 E* R
IID_NULL, // reserved6 B% m& {+ _5 q
&Name, // Array of names to get IDs for5 z) p) m2 s- v1 E; H
1, // # of names in the array- w7 W/ U% c; W5 j8 J x
LOCALE_SYSTEM_DEFAULT, // System locale 2 ?3 k/ a2 I, Z, r* _# s& a) f &pokeID); // Array of IDs to fill on output L0 Y9 T8 g) Z % u+ N3 R" K6 t$ G+ j8 j3 v j
if (hr) , a3 Y" [# W j; a ?8 m {% S7 U- m4 r8 w
MessageBox ("Get Poke Unsuccessful");! N1 G4 l9 n/ {
return;3 d, z# `6 O) E; W( I
} ' n+ i& J3 p. F6 M' u1 @ 4 v/ G* u" u4 U# U2 a4 u7 s4 f" [/**************************传递数据给extend**************************************/- H: Q: v; J# _' e) Q# c# r, X- V# |* e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# q5 r- p! Y# A; Q7 C
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valueStr = SysAllocString((WCHAR *) L"1232");# Z) [/ e# I% A6 q+ e
VariantInit(&pokeVariant[0]); 1 G. t: ^2 Y* z8 M8 S
pokeVariant[0].vt = VT_BSTR; ( {' p5 P" h5 x! ~( W$ P2 e pokeVariant[0].bstrVal = valueStr; 5 O6 e. \$ Z6 E8 }# b% d9 C) O" z$ p% Y/ C/ p
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 K6 l `' y2 z0 G+ R9 z% j
VariantInit(&pokeVariant[1]); $ p5 y! h j4 s! C, r) k% G( T+ `2 H pokeVariant[1].vt = VT_BSTR; , v( Z3 {- W: U+ C pokeVariant[1].bstrVal = itemStr; # x7 {: `+ M/ ]& [$ U. ?! Q. o8 _" Z9 H( n
topicStr = SysAllocString((WCHAR *) L"system"); ! m5 S& a7 L& F( Y' K c VariantInit(&pokeVariant[2]); ) {; M+ {0 M$ x& x pokeVariant[2].vt = VT_BSTR; ' x9 H( ]0 E* K' T/ C+ ^ pokeVariant[2].bstrVal = topicStr; ) a% ?4 g" g' Y/ w4 z. ] v% h* ?+ x; }, y; \& X, _
// Set the DISPPARAMS structure that holds the variant. 5 i$ F2 q* Q, H3 W) H; V1 B8 _% y) P6 v$ f1 l
dp.rgvarg = pokeVariant;! ^9 a! r0 w2 c; q) {& J
dp.cArgs = 3; ) I5 X% R( {9 W, e dp.rgdispidNamedArgs = NULL;$ { ^$ b; S9 q: c
dp.cNamedArgs = 0; % F* s, |8 a, N# Q5 p4 e- _9 A; |9 l7 a$ f t9 X
// Call IDispatch::Invoke() ) B: T# m3 n" v# x* r+ {5 `5 z0 a H9 k4 `. ]; ^7 y
hr = m_pDisp->Invoke( . m! J# z$ B5 T/ w! A- n- y pokeID, 6 g7 e& D3 s1 q: i: m& r% P IID_NULL, / D5 d! x% l2 ^2 {8 X LOCALE_SYSTEM_DEFAULT,' b8 ]6 t2 `2 f' |. n7 l
DISPATCH_METHOD,' |4 B+ g+ U$ e/ n! @; w1 n6 R
&dp,$ C: Y) q0 B' U- R
NULL,- I/ x, ]: }( @' B& w
&ei, , s$ ]: e; E/ z, N &uiErr);$ l6 O# F: {( {: H* M# R- I% v
! e, v3 h! x4 M SysFreeString(topicStr);3 K! S; ]% m8 o3 ?' p
SysFreeString(itemStr);; Z7 g8 v" q' R
SysFreeString(valueStr); ) Q4 a5 o- {; U5 i7 }# o T, N3 ?9 w$ 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???$ j$ Y" n4 y# C! |9 E* H3 a
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???? 7 F/ U1 D2 }, x* Q, ] Q, N* a) @8 `. B5 F' S! U
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2.这是request的程序 0 s: Y! ~5 Z! Y# `$ n// Request a value from Extend5 T7 a3 {0 h/ i! x: s
// - ~( o, H" P. A$ v$ q// Initialize the variant that will hold the BSTR. Set the variant's' C( v: f) ~" j4 F' v
// type flag to indicate the fact that this variant holds a BSTR. Place the % G- l- b! }8 ?" K// BSTR into the variant structure. ) y W$ m% V7 @/ L `3 Z/ h; G0 K9 Q+ X( N$ w$ i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 B- H2 B2 @. J8 p Y
. F1 w8 p* {0 R* r+ R7 N itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* x. h( j$ l; Q, C2 F Z
VariantInit(&requestVariant[0]); % }" [( W7 \5 z' o! f requestVariant[0].vt = VT_BSTR; ! R9 b0 Z! ?; N7 e4 y7 G requestVariant[0].bstrVal = itemStr;0 f+ T; B2 {3 e1 o9 e ?. p
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topicStr = SysAllocString((WCHAR *) L"system");, k9 P& ?$ B j$ Y' |5 y
VariantInit(&requestVariant[1]); ' f0 u4 V# [% k# O/ Q
requestVariant[1].vt = VT_BSTR;# I- [ _- Q" h& t! a$ D6 Z* A
requestVariant[1].bstrVal = topicStr;, N( }4 w! @0 w; T# y
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// Set the DISPPARAMS structure that holds the variant.5 F$ l9 k& X# k0 Q
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dp2.rgvarg = requestVariant; \% d$ M/ D+ w% U5 S
dp2.cArgs = 2; / C7 Z& z% W# i8 s2 p dp2.rgdispidNamedArgs = NULL;7 ^$ g' n3 q6 O$ Y0 c2 {
dp2.cNamedArgs = 0;9 q' d0 Z; v4 }) F/ m7 ^2 ?' o. c