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:6 L1 z+ O; g% d5 ?
Name = (WCHAR *) L"Poke"; 0 p) l% ]0 Y$ T: Z& W / ~2 A* b7 S1 d+ t
hr = m_pDisp->GetIDsOfNames (! @+ L$ i6 j. G$ C* k
IID_NULL, // reserved# v* @4 \1 K* S
&Name, // Array of names to get IDs for ~3 a' N) v9 W, [+ J# N 1, // # of names in the array . B6 }2 `- V' a- F9 K LOCALE_SYSTEM_DEFAULT, // System locale 7 I# s s9 H0 g &pokeID); // Array of IDs to fill on output 4 }* h( i6 w2 p3 T% P/ e* c 6 t- S4 b, `3 w/ F2 M: P
if (hr) ' g" b, K, U) }! ^; j- h { * `* R! P3 m$ @$ R& a MessageBox ("Get Poke Unsuccessful");8 C* e f0 q! C
return;$ w ?3 _' o( h
} ; G* d, W% y: Z% I6 Z" J 2 \/ l7 n1 v# }7 ~7 V5 f" J. Z/**************************传递数据给extend**************************************/ ; f: a5 S2 ]* l2 T4 f+ J j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 r/ T* O+ x; V% G) l: J7 W \5 j2 I
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valueStr = SysAllocString((WCHAR *) L"1232"); ) X& X& N& ~1 o, q VariantInit(&pokeVariant[0]); 8 a) }! \) G j pokeVariant[0].vt = VT_BSTR; 5 c8 y- G. d: r) g9 m pokeVariant[0].bstrVal = valueStr; 8 w& D9 x8 L# `7 U* I& ?8 q* d* X7 W& \/ ]7 I5 C( D8 b _$ L0 P" W
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % x o" \/ q; B" ^, [" [# F VariantInit(&pokeVariant[1]); 7 A; @2 L+ [% z3 v$ r pokeVariant[1].vt = VT_BSTR;' r- k9 _% V7 h" V [
pokeVariant[1].bstrVal = itemStr; ' t" ^5 J* Z7 _8 [" Y' I, J5 M$ G! v* |/ P! T! Y5 ~1 j+ t d2 v
topicStr = SysAllocString((WCHAR *) L"system"); , m; I. J/ v: S& n VariantInit(&pokeVariant[2]); # p" j5 B' |0 \$ y
pokeVariant[2].vt = VT_BSTR; * b3 z9 C! o& b pokeVariant[2].bstrVal = topicStr; 5 n0 g4 u/ E4 E. G' W2 I4 L/ Y# g5 _/ O) [6 _
// Set the DISPPARAMS structure that holds the variant.6 [ Q7 C4 p& @/ |, E
_) m/ m, V" R4 P3 p! Y% Q% a dp.rgvarg = pokeVariant;+ A8 W# m3 `, l, D O3 z/ r6 K F
dp.cArgs = 3;- d' c. g/ W) J' m. z
dp.rgdispidNamedArgs = NULL;% {3 p) a7 L" \# R
dp.cNamedArgs = 0; ' `1 u7 o" R: |1 O- Y$ l* ^: V6 |9 U: e7 m) Z, s
// Call IDispatch::Invoke() 9 Y: q! L @; P 8 E/ s- s& v, L$ O9 V% N. B+ a+ h hr = m_pDisp->Invoke( % r- I8 D& A c1 _( T pokeID, # _6 Q3 L4 w t1 r0 `! o IID_NULL,& {1 a4 H3 h5 [
LOCALE_SYSTEM_DEFAULT,4 j' x: P7 V$ l5 R
DISPATCH_METHOD, ' D: ~5 C5 E1 C &dp, # t/ ^+ Z$ F2 Y, ^( A8 O- {% ] NULL, x( r" k/ E, S# j) K8 y
&ei,9 t2 \4 h% B4 M4 i
&uiErr);- z$ \9 X; f; P8 o5 s5 z' s8 v
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SysFreeString(topicStr); $ K+ a- v$ c; s SysFreeString(itemStr); / y. q/ _0 N+ T0 C% b' W SysFreeString(valueStr);. ^/ ~0 X6 `% {2 U
# a6 w+ U5 x: N% Z
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???8 K& y- F B X7 m, d. d/ i
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????) f0 i% Y% N, m7 u; [5 _' o
Z" X+ G% X* d, q + W1 c# c( x' |" A( J& r& y2.这是request的程序1 i0 `1 m$ i3 g- l" [
// Request a value from Extend 2 S h/ _5 Z5 Q//( k( `3 M" a- l1 C7 g
// Initialize the variant that will hold the BSTR. Set the variant's7 K6 J2 H' s) \% G |
// type flag to indicate the fact that this variant holds a BSTR. Place the 0 P* ^$ M3 h9 v( o% q// BSTR into the variant structure. & d6 l! X+ y9 d5 g2 e% v! V( [: C1 f
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) s; N9 o/ ~4 Z5 z8 j# O
: c+ e: s# W2 x2 S3 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / C; v$ w( l( i; o5 p VariantInit(&requestVariant[0]); 3 T. F& m# }/ O) {$ F F# F
requestVariant[0].vt = VT_BSTR;" L1 M9 l! E; ?$ m5 W
requestVariant[0].bstrVal = itemStr; . F1 X1 H) f V2 k. X# a 3 M6 C/ Y7 g0 p4 q0 p' q7 j6 h topicStr = SysAllocString((WCHAR *) L"system");2 y9 J$ ]$ T* ]1 C
VariantInit(&requestVariant[1]); 8 y* b/ S: P0 e* t. U+ w& A" r
requestVariant[1].vt = VT_BSTR; ( \) K! { t: S" h [ requestVariant[1].bstrVal = topicStr;! F& n6 K1 \, I: D; ?
% e! O3 \0 O7 o// Set the DISPPARAMS structure that holds the variant.8 j! F) q1 s& C0 S9 T