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 x1 p$ B! H- _5 K" f8 g( F
Name = (WCHAR *) L"Poke";- O/ }# f% M _
w8 R; a. G6 P7 e; s
hr = m_pDisp->GetIDsOfNames (8 o, @( M7 u2 }7 L
IID_NULL, // reserved! u4 q: j1 x, Z
&Name, // Array of names to get IDs for ! e4 s) p6 q! G0 w9 I* K8 ~3 h 1, // # of names in the array ; w" S0 D& t8 o LOCALE_SYSTEM_DEFAULT, // System locale / ?9 M9 s) \3 [; D. y &pokeID); // Array of IDs to fill on output - ~$ _, G9 H# K; H ( P. h% @) @- d8 C
if (hr)5 _8 }. H& \' g( f
{ # t+ e# X9 j% W3 `. J MessageBox ("Get Poke Unsuccessful"); & z! D. f9 [& M* c0 k! g+ _ return; 5 j# T! a, o& p1 Y0 P- ]) Y } / `, c6 ~5 t6 w" h6 V0 j6 ]+ `3 ?; C" T7 M: o
/**************************传递数据给extend**************************************/ 2 d, r! d! m' j) x' N: R pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ Y( }9 ?8 u3 ~; I! `- b
& V/ H- J4 E6 }3 k9 C, Q valueStr = SysAllocString((WCHAR *) L"1232"); . m; t/ A5 j4 c5 A; A; k. y+ _ VariantInit(&pokeVariant[0]); 1 s7 q2 g7 c' | pokeVariant[0].vt = VT_BSTR;: O$ J, @, o7 P% g7 w
pokeVariant[0].bstrVal = valueStr;& P# A! V2 R% c2 x& a# ?
. x: n6 A( m5 h8 K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 r% c7 ~7 F2 C8 t) {
VariantInit(&pokeVariant[1]); 8 |% |+ |! x& W9 y2 u0 n pokeVariant[1].vt = VT_BSTR; 5 B9 x5 T8 I: q8 }- b' e pokeVariant[1].bstrVal = itemStr;) A2 W# h5 Q H! j) o( R* L
0 V: {6 I% w. B7 c t( ?6 l2 N8 H
topicStr = SysAllocString((WCHAR *) L"system");. A8 K8 l) A4 _8 M1 u t K
VariantInit(&pokeVariant[2]); 2 X! l' j; I5 U! ]$ d
pokeVariant[2].vt = VT_BSTR; % K; i* D' D$ G! [) d2 f pokeVariant[2].bstrVal = topicStr; ( d$ k8 [! `. k6 l 9 M/ p0 y: d4 u; q6 A1 }// Set the DISPPARAMS structure that holds the variant.# \' g6 b9 a- M
- n' ]# P/ @+ K# a
dp.rgvarg = pokeVariant;( g1 Q0 u9 ]$ n7 b
dp.cArgs = 3; 2 ^0 E- _7 h# M; @ dp.rgdispidNamedArgs = NULL; / B& ~% I4 w6 e( q: }% w dp.cNamedArgs = 0; ! u/ \/ D3 i2 D( X X; O5 V x. g, k% f1 `# w; g) v
// Call IDispatch::Invoke()! u4 e+ T( x) j5 _
! m4 [8 U2 S% o* Q% Q# Q4 {
hr = m_pDisp->Invoke( ) K8 H& H1 s9 H% E6 [! q pokeID,7 v1 R; g, z" o, ?& ^
IID_NULL," u U s7 y% f8 {
LOCALE_SYSTEM_DEFAULT, 1 ~: X% V+ @# {7 U4 o; G DISPATCH_METHOD,, D9 @- _! c' D8 O
&dp,% M$ |, K7 p( Z% f3 W3 d2 n
NULL, % \) c! b& p4 m5 t8 S, `* ? &ei,/ U2 @; ?: ^. g0 `: u: F
&uiErr); + u+ S3 D0 ^3 t/ P7 P$ M# h# B 9 P3 _% ^2 L/ Q, t( f7 c SysFreeString(topicStr); 0 h* f' F1 k' ?4 z- t SysFreeString(itemStr);3 V8 K, W7 G# N7 @5 ?: O; f2 W
SysFreeString(valueStr); ( X; X* J0 B7 Z ) ~; k8 m' Q& O/ W0 u# }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??? 2 m5 B* |# s' L6 h5 R! s, ~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???? 4 \& x6 F) o' `8 a2 n/ l V) z/ a) t9 |5 b* ^
% ^2 Q% Q( m2 ?* ?( V2 y1 V
2.这是request的程序2 [: f- R7 G" w3 I6 a0 |2 M
// Request a value from Extend 0 b R& D! e- _5 i//, T6 u& h" r2 g1 W
// Initialize the variant that will hold the BSTR. Set the variant's* I" d3 Y) ~0 W; g& o
// type flag to indicate the fact that this variant holds a BSTR. Place the ) `, m: v' |5 T& P// BSTR into the variant structure. * ?8 ^+ J( J% [6 { / ?. R$ Z4 H$ E' | C8 ~" F requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ \5 W$ x% F' j- n0 x
3 b3 h# F/ ~2 R( ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 q x g9 u' s; l VariantInit(&requestVariant[0]); , v5 |1 y4 Q" C* z9 B) O requestVariant[0].vt = VT_BSTR;9 j! X! }( G/ f6 y6 ~6 N3 H2 S% }1 c+ \
requestVariant[0].bstrVal = itemStr; ! D' T" K, ]. D% o$ z & y: @5 p8 h. R, u9 T& U+ n4 O. q topicStr = SysAllocString((WCHAR *) L"system"); 0 ~2 Q- V u: Z, W; G0 |5 V" V VariantInit(&requestVariant[1]); 9 [& q" E( @% l/ ~ requestVariant[1].vt = VT_BSTR;' B( Y* p( I) a9 f
requestVariant[1].bstrVal = topicStr;7 Q7 E9 C+ Z* C+ V
: _5 s7 @" T' {) E: F
// Set the DISPPARAMS structure that holds the variant. ( O. D1 h2 y0 `% m& d& I/ P % B5 c( \, Z3 L dp2.rgvarg = requestVariant; % h8 S8 f. y- S: J- d dp2.cArgs = 2;% e M6 Y2 a% d' S. j- _# ~3 t8 i
dp2.rgdispidNamedArgs = NULL; # K @$ ~7 P% ^2 c0 V1 j dp2.cNamedArgs = 0;& H$ ` v! ?/ \0 B" Y; D+ X. J
2 Z8 h4 U2 U+ t8 b/ H+ B, g var.vt = VT_EMPTY;# N4 _% D' S+ x
1 N% j# G4 L3 f, e// Call IDispatch::Invoke() 0 O- H0 l1 }) @' v" K4 B' T# m6 O, m, a$ M. d
hr = m_pDisp->Invoke(0 W9 P& p: g Y U
requestID, * \. }: v- s" A/ d6 Z IID_NULL, 1 T- s5 Q, f9 ?6 q8 l' A LOCALE_SYSTEM_DEFAULT,7 T3 Z: ?8 Z* W T
DISPATCH_METHOD,! B9 L( W' ? U2 c# N
&dp2, % I. l* ~0 R B &var, - ^+ G6 @: K* ^/ J4 n, l) M &ei,/ B1 V/ Z# @ {4 V4 R
&uiErr);7 W$ V0 a" r6 r" ?- y* f
, B6 ?7 K' Y* U8 Z/ z
SysFreeString(topicStr); 8 \% K- o; A3 j% [8 d5 d SysFreeString(itemStr);7 F# p9 d' z* E. D! q0 x
请问该程序是获得extend里面的哪个值? 6 U5 |. ]3 [- b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????