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: ; x9 ]) }# Q& K0 m* nName = (WCHAR *) L"Poke";3 S* [% \* W) I8 a- I) F) c# w
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hr = m_pDisp->GetIDsOfNames (* Z- H9 G" g6 H, o) m+ u
IID_NULL, // reserved : o& t. m; M! o' T. f& d &Name, // Array of names to get IDs for/ o4 [; O9 t! c: q/ d; m
1, // # of names in the array8 E# M! ~& c1 V3 L& C) P3 X
LOCALE_SYSTEM_DEFAULT, // System locale & x+ l! @9 F1 ]; U &pokeID); // Array of IDs to fill on output & `. u6 H9 |# g- E - C( T4 p1 m- e* x6 M! S4 s
if (hr) . p6 f; k X# e. N+ ^( Q) S { & o. p0 g W5 y7 Z6 ?% e. x# p MessageBox ("Get Poke Unsuccessful"); 1 A# h5 I% A# r% g" z# y# [, H# w, A return;% K. h6 f2 n* p9 h; \5 s
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/**************************传递数据给extend**************************************/ / [* [ a' r" T1 E! F! C' K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 y) x- F1 s# Y, S ! X" J3 v. N/ T6 f
valueStr = SysAllocString((WCHAR *) L"1232");* C) ~! w$ d7 W4 ]
VariantInit(&pokeVariant[0]); $ {! p7 X1 j1 c* O+ { pokeVariant[0].vt = VT_BSTR; & |, L# z5 g) b6 m' J pokeVariant[0].bstrVal = valueStr;# A, }. b4 L1 }
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 q- G8 m( @' c) R! r3 w: f: F VariantInit(&pokeVariant[1]); ; {+ L$ v9 z- ?7 A" B* {7 m. V pokeVariant[1].vt = VT_BSTR; 7 M2 ^8 m. o/ `! G+ {; c& l pokeVariant[1].bstrVal = itemStr; 9 R2 |2 E1 T5 }" p! o/ U4 O( K& i% a, t6 M9 w4 o. ?, {/ Y
topicStr = SysAllocString((WCHAR *) L"system");0 O* Q' p% M y) a* M
VariantInit(&pokeVariant[2]); 6 o4 d7 h/ w B pokeVariant[2].vt = VT_BSTR;& Q/ s3 H; f7 @
pokeVariant[2].bstrVal = topicStr;& x$ \+ X. F$ i. F
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// Set the DISPPARAMS structure that holds the variant. % ]* N4 Q. \6 z$ U' M4 D+ _ / y! L: K! N8 W% L3 r dp.rgvarg = pokeVariant; ]; C; H2 K+ O$ Y) S G& a9 {
dp.cArgs = 3;3 X& ~4 {$ _$ q) E6 {: S1 f2 k. j) j
dp.rgdispidNamedArgs = NULL;/ u- ^: x" x; v9 q& X2 o
dp.cNamedArgs = 0;% b/ t: B5 _8 T, r B8 J
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// Call IDispatch::Invoke()" O9 g- {7 Z _
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hr = m_pDisp->Invoke( ) H( s+ _( V7 F- ^+ i pokeID,8 [. R \2 S w4 P
IID_NULL, s% S; J6 x% `/ R O' _
LOCALE_SYSTEM_DEFAULT, 9 |5 \8 K/ @# K$ a! _* e4 }& ~ DISPATCH_METHOD,0 S4 b1 p9 \* s: a( b) g
&dp, ( D4 s( j* S \7 A NULL, ' i* Z! n& j( M* k, g) | &ei,* W: d) H6 a7 S
&uiErr); 0 r5 N: u" |" y' z$ @2 U8 Y+ w+ d# D
SysFreeString(topicStr);+ m) v0 X* T0 o# n3 {! ?& ~* L o
SysFreeString(itemStr);) e% }. O, t7 M6 V) ^% L
SysFreeString(valueStr);6 W$ F O& k0 i; a: W5 O- _
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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???4 \4 k. r3 Y* @" t; a Y- P6 ?
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???? , e! J* ^+ G2 P) {4 q: Z4 E6 f' h( D* G% o9 Z. |0 s# G8 L
+ i( ^0 H- H3 O% ~, X5 b3 Z2.这是request的程序5 X- _( E# Z U! B) w
// Request a value from Extend- W. d! E9 Y3 W6 _4 M' \2 _$ N1 K
// 6 q# f8 p. S# z/ [1 D" E3 W8 z) A// Initialize the variant that will hold the BSTR. Set the variant's% T6 T5 [/ K9 |8 s: [: s
// type flag to indicate the fact that this variant holds a BSTR. Place the, b; N. a( ]# N, _+ y
// BSTR into the variant structure. * M! A n. p. f6 O; l# ?& q: Y t$ y+ @% ?" n8 e; \
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 N) Z. s8 |, {( N6 a5 ?: I % \1 @! \5 g, _* Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ u& j% s% B/ g% | VariantInit(&requestVariant[0]); ) W8 L" E7 V/ |, f3 w1 i% {4 A4 a
requestVariant[0].vt = VT_BSTR; # j6 J) l# P: i5 m& `6 ~9 a$ t requestVariant[0].bstrVal = itemStr;# Z3 g/ R) h3 V# m9 N
8 ]+ a7 Q/ T& T2 Y' w topicStr = SysAllocString((WCHAR *) L"system"); , G- C4 W/ s0 W1 k VariantInit(&requestVariant[1]); . E9 g/ `7 P2 x8 }( c
requestVariant[1].vt = VT_BSTR;+ d, m$ g5 F' ?. ^) z
requestVariant[1].bstrVal = topicStr; 4 `9 c5 n3 C$ z! H9 T) A: @6 k2 N7 f! L
// Set the DISPPARAMS structure that holds the variant. : B# J3 |/ a6 Y" O3 Q* L5 ^# o3 v1 `+ T' ^/ M
dp2.rgvarg = requestVariant;' @$ {0 W( _; w! T
dp2.cArgs = 2;. Q6 `/ H7 ]0 e, X; W
dp2.rgdispidNamedArgs = NULL;1 {. ^$ K$ P. |( M
dp2.cNamedArgs = 0;/ h! n3 W- ?2 w( K$ [
2 {$ c! h+ W: v' N* _) Y var.vt = VT_EMPTY; . R9 d' g! {* X: E* c ) z7 Q" z0 s, {/ U5 a$ E/ G% \# Z// Call IDispatch::Invoke()+ P2 W, N. e! G7 c8 i' G/ r
^3 c0 d+ H1 E. | hr = m_pDisp->Invoke(; p c6 Y+ ~( Z, t' u
requestID,' Q+ @, e7 c2 G* |
IID_NULL,% v5 z/ h! y; W' F* l6 n& a. _
LOCALE_SYSTEM_DEFAULT, 3 b5 e( ?5 `. L4 F& a DISPATCH_METHOD, ! v' Q5 e* W+ L8 ^* l &dp2,, E: T6 \7 ]& l* \, E9 V p3 F
&var, 5 ^$ X6 B8 w9 _ y3 F7 _$ U* g3 W# n &ei,% s/ w/ D4 E+ X4 i, S2 K! Y
&uiErr); * c* t' l5 t% i7 A ! W! ]6 ~) G. V' @: g/ s* p SysFreeString(topicStr); 7 s H5 B/ d4 I% s! Y SysFreeString(itemStr); 9 j) Z2 @# M% }: y请问该程序是获得extend里面的哪个值? 7 t# v. h! x$ G/ ^3 P3 z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????