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 t7 r: z5 a% M
Name = (WCHAR *) L"Poke"; 3 W- @* {% a5 f1 v. X9 P) ~ - ]; v1 U9 f) ?( c3 C2 m+ D hr = m_pDisp->GetIDsOfNames ( 0 t0 g2 d& w/ x% _" l. r8 w IID_NULL, // reserved % v+ ~0 `( B1 B* _' c Y& g8 ~ &Name, // Array of names to get IDs for# n8 T# R* r. j2 M4 r1 x! w
1, // # of names in the array2 J, b( y! J0 j7 m
LOCALE_SYSTEM_DEFAULT, // System locale# s! n: d3 e" K: v; R5 ?) \
&pokeID); // Array of IDs to fill on output * M7 Z% r: `; q; E- q8 w 9 C5 d7 {) O& d5 K4 C, H# [
if (hr)% s$ b5 L5 ?# f1 \
{ ( Z2 O& X& T7 h* | MessageBox ("Get Poke Unsuccessful"); 4 I6 ?4 \' W* b9 C$ a) Q6 d* n return; ! y) E/ ]5 s! \3 F$ L }; y: A8 O: R9 U3 R. O
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/**************************传递数据给extend**************************************/+ R) q* I2 g- a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 h+ `5 q$ F4 n7 X8 U3 G( a* M- I( D& D P - N% _2 v( V8 C+ I
valueStr = SysAllocString((WCHAR *) L"1232");- F, U. i. G, [+ d i+ R
VariantInit(&pokeVariant[0]); k3 S a6 A$ z8 b, c1 |0 }
pokeVariant[0].vt = VT_BSTR; & D. d5 b9 ]& c0 l pokeVariant[0].bstrVal = valueStr; $ z1 Q6 J7 c0 B2 d8 {( \" O% }, w , Q; ?* f& C, e' a0 ?0 K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( u: @* y0 K' w1 H$ \% t. }
VariantInit(&pokeVariant[1]); 1 @; q2 I& A: ^/ b. x* x e7 R
pokeVariant[1].vt = VT_BSTR;- P* b! \: a" ]2 E$ o6 Q
pokeVariant[1].bstrVal = itemStr; ( Z' c d8 Y! R2 k! {$ b* O. X6 f7 A$ e G( B
topicStr = SysAllocString((WCHAR *) L"system");8 D& x$ z8 y/ j/ a: D
VariantInit(&pokeVariant[2]); Y8 D, f3 D/ x5 V4 K
pokeVariant[2].vt = VT_BSTR;7 F, E3 j; y6 w8 V% Q
pokeVariant[2].bstrVal = topicStr;% Z* {1 d7 H) K, z: W+ ?
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// Set the DISPPARAMS structure that holds the variant. 3 R" E: Z, D: W/ m- L. d- z' H# V. f. g3 a, t0 \
dp.rgvarg = pokeVariant; % Q5 U+ a$ X+ w# a, F8 ~5 e dp.cArgs = 3; # z- T4 |4 o6 p3 C1 z3 k, w/ m dp.rgdispidNamedArgs = NULL;( ]1 [* ?' P7 ~! t9 S! e. Y1 j* Q& x z
dp.cNamedArgs = 0; 7 ^: T, l; W0 N' g6 H$ C- d0 a/ u5 r 7 k/ ]) s3 \5 {9 E% \// Call IDispatch::Invoke() 1 M! @# u' i& w- k2 y( Q- u + h+ y0 _/ f# H! f hr = m_pDisp->Invoke(. ^/ }0 ]8 f: q" e1 Y' m! P
pokeID, 3 Q$ ^& d7 [% X( i, b7 D& ` IID_NULL, # q' H) a% [0 ~- o LOCALE_SYSTEM_DEFAULT,9 d& v' O1 j# u& F4 A% C* P9 `
DISPATCH_METHOD, - `/ f; i; y6 M; }/ Y. X1 g &dp,& I! H& W9 f' q1 V+ y& R* U8 e
NULL,8 H6 Z7 h7 W, W# C: }: E
&ei,, f+ h! Q; F% p/ g4 E2 q* N& M
&uiErr); 9 F- e0 Z" K# D8 w% J' W6 f3 x/ `' s1 b. P; P+ A- \0 ]
SysFreeString(topicStr);" w o# w/ ~: I% F
SysFreeString(itemStr); ! t- ~0 l1 B0 V+ o+ Q SysFreeString(valueStr);" o. g2 c+ Q" x
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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???. W: }; `1 h- R' f0 ]
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????$ H+ n) ?9 W {% J) S
0 Y% y. Y; _0 R2 D) p - v/ e$ ]. e! y8 G- |0 l; `2.这是request的程序7 {6 @9 o3 x) ]' ^
// Request a value from Extend5 X h- W8 ^% _6 O K) ]
//* N4 i- \( q4 b0 f$ l
// Initialize the variant that will hold the BSTR. Set the variant's a6 y& ^( H1 K
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 {# G2 x* T: D) |, n' n// BSTR into the variant structure. 1 X+ _* d' {7 g% H( C& N5 C 0 ~5 G; M4 u' Z% `# e# ^: \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); \' }! n& u, S8 `, v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' o/ M3 w6 f# d8 x
VariantInit(&requestVariant[0]); # @7 a ~, K: g, w$ [9 `
requestVariant[0].vt = VT_BSTR; z! y3 k7 \7 R
requestVariant[0].bstrVal = itemStr;% e6 j; c- g- g' p! @% P
( `4 z3 v, N! k topicStr = SysAllocString((WCHAR *) L"system"); 2 Z; s+ y, d0 @4 U VariantInit(&requestVariant[1]); , s5 p# U& s. N) X
requestVariant[1].vt = VT_BSTR; . }, L# `" P$ Y `9 J& t) ~ requestVariant[1].bstrVal = topicStr; 8 I0 L$ e0 r3 w 0 |8 f5 X7 ^1 @7 u// Set the DISPPARAMS structure that holds the variant.- N5 @% X- p; \9 Q
a- g0 X" y& `! F( V7 E dp2.rgvarg = requestVariant; : G$ b. t; r, v dp2.cArgs = 2; 1 Z' W4 _% c. {- ~ A dp2.rgdispidNamedArgs = NULL; 3 |3 F, m9 k6 O7 R3 c/ g M1 \) m dp2.cNamedArgs = 0; ]+ ?& F. X/ I* U4 ?. T6 G4 _4 Y, O% z