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:: a% ]0 w& A& q
Name = (WCHAR *) L"Poke"; 0 R9 O5 D* `- v5 V $ Y2 ?2 \2 r, Y) F hr = m_pDisp->GetIDsOfNames (" @9 t4 C$ ?% g. O' f) g
IID_NULL, // reserved; z/ e5 W1 u8 ~; F) G
&Name, // Array of names to get IDs for% k7 W6 J5 P. s+ D5 g; z9 @
1, // # of names in the array7 w" a s4 y, o% E
LOCALE_SYSTEM_DEFAULT, // System locale ! b/ l r" d: a' M &pokeID); // Array of IDs to fill on output * Z+ z. M! P, e2 x/ B: u# L W 3 s2 k0 f) [& m3 q" k8 g if (hr) ' Y) n. Q$ Q3 R3 v& ? { 2 I: i- @$ d. o! a- k& m& X% X8 R MessageBox ("Get Poke Unsuccessful");8 R& L8 C1 l& w: F3 c, _, b
return; $ L9 ^/ d$ v3 M- Y: { }" I x! ~4 Q. _) u4 Z4 V
; p. a* W. a2 ?; ^/**************************传递数据给extend**************************************/) _' {1 H9 A; W7 b0 _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 m- X( n' m* c6 d
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valueStr = SysAllocString((WCHAR *) L"1232"); % x" x" Z: o2 v1 z# \5 r VariantInit(&pokeVariant[0]); , F( m' ~3 P, R" ~
pokeVariant[0].vt = VT_BSTR;! ^3 f( A+ |8 Q* D' r7 e9 ?1 c
pokeVariant[0].bstrVal = valueStr;; w* ]3 {* P; b+ M' v ?% E7 `
+ j" z- y# B4 t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' I1 i, e( o2 f0 U+ A5 n0 }) a- C
VariantInit(&pokeVariant[1]); . y- @8 B2 A$ U" d: O/ R; e pokeVariant[1].vt = VT_BSTR;; l0 E7 E1 t0 d' R2 _, T4 s
pokeVariant[1].bstrVal = itemStr;/ j5 M* D. q4 ^
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topicStr = SysAllocString((WCHAR *) L"system"); $ D) {! t$ o4 x VariantInit(&pokeVariant[2]); ' o5 G9 Z/ e: C" a
pokeVariant[2].vt = VT_BSTR;! ^9 A3 k$ p: _) ` [5 {+ [1 ]
pokeVariant[2].bstrVal = topicStr; + c$ Z6 Y' Z& Y8 H- U9 d2 i$ { : }; B& r' z, k- }7 G// Set the DISPPARAMS structure that holds the variant. 5 N, _4 J4 H5 B+ I1 Z+ t. Z4 o 9 W- W: _; O0 N1 A q; M dp.rgvarg = pokeVariant;7 \# [2 v1 m& M8 `% T0 F! K, U" a( i
dp.cArgs = 3; + n3 f& r2 S3 j6 @; P; Z; V5 m dp.rgdispidNamedArgs = NULL; |2 f5 t+ `$ d/ _2 t
dp.cNamedArgs = 0; & V: d' {6 a& p. X8 u7 T- W! i8 u- ?& c1 [ N5 z) Y9 {
// Call IDispatch::Invoke() $ C. \+ h- f" D( d' } , @9 V9 @. ~5 Z- x hr = m_pDisp->Invoke( # A5 X4 n0 H' w3 ^" d' h% A% D* I pokeID,! ]* G. [. s8 N; @
IID_NULL, ) R# y% t2 o, W/ [7 S LOCALE_SYSTEM_DEFAULT, % T# D% I! B' n& n8 ~+ { DISPATCH_METHOD,5 g& h# r, I8 b6 a6 {- L/ V Z/ L; F
&dp, ; \ j& T) i7 ?! o, P NULL, . e& b. ?" l1 j" Y+ l &ei,: v# ]; `. h+ v% o$ P& C
&uiErr);1 Z9 C7 w- X. Q6 v1 j- Y, M
O' m8 `0 E" ?* q
SysFreeString(topicStr); 2 d% F' n" P9 _ SysFreeString(itemStr);4 e6 G. ^, {" d) y$ {$ y: _# C% T
SysFreeString(valueStr); 5 R' x8 {1 G3 h$ Y! w6 _# l f$ G8 k
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???$ o) l3 ]; o9 I9 X; V3 _9 `7 C9 S( 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???? : k& Z4 Q$ W* D) }4 E% V8 w" i3 B9 r5 R8 G3 H0 K4 z1 m
v" I# W& d% d% V2.这是request的程序 : p ?. G" ?& D" ~$ `: j2 }// Request a value from Extend, i4 R! f7 P0 T3 E- Z2 e
//1 b4 }4 z7 Z6 n$ ], f+ d
// Initialize the variant that will hold the BSTR. Set the variant's7 G# e- m1 M& k0 s& `$ Y
// type flag to indicate the fact that this variant holds a BSTR. Place the9 f, [- g: {, [% K, F6 K* @
// BSTR into the variant structure., W/ ~8 K& R& g& P