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 F/ |7 D# P w( |( X2 TName = (WCHAR *) L"Poke"; * e4 z \% X6 j: u/ A* @! o: s 9 C z: g) [5 e hr = m_pDisp->GetIDsOfNames ( + z4 r1 n7 j9 @! W8 h) q IID_NULL, // reserved8 b; ~' T( t, g9 t$ e
&Name, // Array of names to get IDs for( S; [1 W |& z
1, // # of names in the array1 i/ P/ w% y# f" H
LOCALE_SYSTEM_DEFAULT, // System locale/ V' k( t) U+ c# `0 q e5 Z
&pokeID); // Array of IDs to fill on output: P6 Q+ A" z9 k: \3 }( z/ m2 _' D ~* z4 ~
( m' w7 u& _% w" C if (hr)& m |5 i( J; C* w" j
{% y' z6 S# X9 K& z8 X
MessageBox ("Get Poke Unsuccessful"); # H1 z: `0 V- E& p$ P8 e return;/ ?! b0 `0 Q5 y, e5 ~
} , A# ~7 {- |7 v" V/ o! n _. h( \8 C y& W: w! n- n' J
/**************************传递数据给extend**************************************/ , j* e6 y) H% o8 v+ e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' `! e$ h6 r* M6 G8 N- [ : g- Z5 s8 s" n2 Z. J4 G5 l; W valueStr = SysAllocString((WCHAR *) L"1232"); + \# g2 J! ~: f s VariantInit(&pokeVariant[0]); . j% C# M1 `1 c9 i
pokeVariant[0].vt = VT_BSTR; - ]+ |; \% d( q" L( X/ B pokeVariant[0].bstrVal = valueStr;/ Y- R$ C. W8 {, P2 o2 @
1 m' u) m" m/ n, e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. f b$ L+ q, \- X. A+ m! P0 W# _2 {
VariantInit(&pokeVariant[1]); ; z, J y. U3 N! m
pokeVariant[1].vt = VT_BSTR; : t) R' { Z# x6 W: f7 r4 _+ s pokeVariant[1].bstrVal = itemStr; $ t: p7 v4 y9 q$ t - b7 A( r# i% B/ l3 ^+ |+ R topicStr = SysAllocString((WCHAR *) L"system"); ' N; P' S; r. u2 H VariantInit(&pokeVariant[2]); 6 E& }0 {( e) |$ T# O5 |. {" g pokeVariant[2].vt = VT_BSTR;# R7 Z, r$ x8 `
pokeVariant[2].bstrVal = topicStr; * T* r3 |. C& S7 y3 ? - P5 G! `5 i: Q// Set the DISPPARAMS structure that holds the variant. , }3 j8 f: L# Q8 |4 Y" i" f$ G4 \! J- a n% z/ x
dp.rgvarg = pokeVariant;/ B$ Q, E6 B( V6 P! h5 o6 h: W
dp.cArgs = 3; # o1 b8 O* d3 B4 b dp.rgdispidNamedArgs = NULL; 7 i! z5 D1 |$ J2 r _ dp.cNamedArgs = 0; 0 G2 P: g* n1 {7 Q7 g3 ^; ]1 H' F * L2 Q& _% V6 W5 E; U5 J# g// Call IDispatch::Invoke() . [ y* a. {, A `) c7 C. D% N8 x. q y9 _7 j* t N$ F# |# h/ C- o
hr = m_pDisp->Invoke(& g% k# |8 J( w5 |: j8 U" ]) ?% _
pokeID,0 v9 a: U* X. o
IID_NULL,, { K; d/ ^8 E6 Y5 }% M' ^/ I4 o. A0 p
LOCALE_SYSTEM_DEFAULT, & R, ^; u+ L) T DISPATCH_METHOD, 5 p- Q0 N6 C+ e2 H. g! \9 } &dp, 4 d2 h& U8 }7 S; x NULL, 9 s5 r n' |' x2 W: m &ei,* d0 I2 W) U% {" b
&uiErr); 0 k ?5 F9 C- ^) B8 s% H6 m7 ]. g' M9 K3 J/ l
SysFreeString(topicStr);- |. }2 A, h& |' [# `6 ]
SysFreeString(itemStr); R) Z: c7 D+ N6 d, y6 p# [) J, v SysFreeString(valueStr);6 w$ I2 |$ u& V4 m. P
! R% f! F" H$ Q8 x* V9 Q c5 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???' q# d' ]# ^& |8 o# ~7 y
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???? ! E0 l9 c6 ^: ?) M$ H+ K 2 b$ M2 {6 F, M) `6 m# d8 f$ m+ v2 W$ w# |9 P
2.这是request的程序5 r% J# Q1 i; A6 ]$ ~, u
// Request a value from Extend " i4 Z. m/ T. l8 k; O+ i8 i. a// ) P' c1 |; ^8 K# l: F1 \// Initialize the variant that will hold the BSTR. Set the variant's 0 A3 n( F N9 c, N! ?; o6 i// type flag to indicate the fact that this variant holds a BSTR. Place the $ J8 e4 R6 b; l y# ^1 Y) r// BSTR into the variant structure. + P$ o: H! S2 G: s! f! z& T6 \3 V & I% e9 {8 ~$ |6 u4 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; a. K- ^! r) b. h2 b
2 `. [2 g. {$ i0 S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 B+ d/ c* {' o& _. G9 w
VariantInit(&requestVariant[0]); + l# {- R( I b5 m' V7 K" n requestVariant[0].vt = VT_BSTR;% C4 F2 C6 x; v* Q8 L# j
requestVariant[0].bstrVal = itemStr;: G' K! _1 \9 j% N: {7 u Y. I
/ n1 \. k# f9 o# k+ k topicStr = SysAllocString((WCHAR *) L"system"); , o8 i3 P2 r6 \1 o( X( X VariantInit(&requestVariant[1]); $ K* s. V1 f3 B( o requestVariant[1].vt = VT_BSTR;& i* h& v/ U6 X8 O# t# N; g) |
requestVariant[1].bstrVal = topicStr; * m) |1 V3 K! S& P. o: J/ p' H' U6 I( ~7 \
// Set the DISPPARAMS structure that holds the variant.4 a* |# T3 r& I4 s# z
0 s9 r/ {- L9 ~) l dp2.rgvarg = requestVariant; 6 M+ {9 v# l! k dp2.cArgs = 2; ' }1 s4 Y6 h. T I/ x; g dp2.rgdispidNamedArgs = NULL;3 M) s% u3 i! s4 n( d
dp2.cNamedArgs = 0;4 o- i. T+ N T/ q. @3 p1 q
: X) G; _) h! d2 i7 P% F4 X3 c
var.vt = VT_EMPTY;3 [+ \- p4 f" y& s) L0 o9 f
5 L) E* U1 g0 O
// Call IDispatch::Invoke()" }. r3 M; D: D8 _) T$ I5 T
s+ }9 G& U8 e( T# g2 P! L1 B6 J
hr = m_pDisp->Invoke( % A! n3 h: X, a2 S/ `5 j requestID,. K- q3 O) O( z# w0 ^$ X- B, W
IID_NULL,3 C" @& b. W8 O. u
LOCALE_SYSTEM_DEFAULT, $ j5 ?* p: S/ g: } DISPATCH_METHOD, , } i) d1 W8 ]* L$ c4 L" ] &dp2,1 m# I% M# ]5 Q; c
&var, & z" Z! B! k& c+ I* w! f &ei, ; @8 W3 B _2 O" ` &uiErr); 4 X; d& M8 h' q' A) t4 G4 L8 }: W( \, q% I
SysFreeString(topicStr); 3 {( Q3 }# @+ G9 a SysFreeString(itemStr);# F: l. E: Y+ Q/ n! f* i
请问该程序是获得extend里面的哪个值?2 f8 Q: w2 J; `3 ^2 X, _4 G( `
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????