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 q& ~" X$ A ?/ }
Name = (WCHAR *) L"Poke";0 a1 |, G% \; G8 J( S6 d
| N7 w* G5 h8 g0 E) N hr = m_pDisp->GetIDsOfNames ( 5 C: o7 ? l ~! {' q) S IID_NULL, // reserved, X/ c# g/ H" H6 F3 m! K+ P& d, q
&Name, // Array of names to get IDs for / A+ w- l# ^+ d. }6 U8 v' M3 ` 1, // # of names in the array1 m8 ?( l4 A7 I* h: W, h z
LOCALE_SYSTEM_DEFAULT, // System locale& v6 j0 Y# B5 e4 Q
&pokeID); // Array of IDs to fill on output , Y- e/ _* \5 C" @ S5 P( t, K# F $ Y+ c4 @+ `# q+ s* U
if (hr) , l8 j6 l, d% \: t$ t1 V. ^ { 9 n% ^# s) {) L1 ` MessageBox ("Get Poke Unsuccessful"); . J& Y* d) P9 A) _ return;2 b9 A0 @$ E$ r N" m/ r# o9 I
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/**************************传递数据给extend**************************************/ 0 t8 v. X( y3 X pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / u9 `- u: Q2 j; y$ J" r% D/ H- w 5 l7 s" [! J# X% p. ]
valueStr = SysAllocString((WCHAR *) L"1232");- e# N- D. W! w6 l* M8 D9 T
VariantInit(&pokeVariant[0]); 2 y( V/ U6 U- u! u: H1 M
pokeVariant[0].vt = VT_BSTR;% R+ L9 Z9 ]7 ?! T3 }
pokeVariant[0].bstrVal = valueStr;1 H8 p& K2 g& |: ~ z) G
" ?( ~4 q4 p8 [! p" D7 {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! w/ D2 C' ^5 H2 } VariantInit(&pokeVariant[1]); # `; x- D* h7 {, R; m8 G
pokeVariant[1].vt = VT_BSTR;! l7 f- `/ t6 t& K- T3 }5 [
pokeVariant[1].bstrVal = itemStr; 1 `' W/ X& G5 X r0 I% } ) s# D2 p, p; U topicStr = SysAllocString((WCHAR *) L"system");+ R* D, H8 N9 y: W- \ U% n
VariantInit(&pokeVariant[2]); ' H/ w; r& C5 f" {) d" T1 f pokeVariant[2].vt = VT_BSTR;; F$ _6 l) D( \, `* @1 M6 j
pokeVariant[2].bstrVal = topicStr; , k3 q& D) A0 p3 v$ c 3 h7 e6 V4 [' a' [1 O// Set the DISPPARAMS structure that holds the variant. + f0 H! M: O# w. v/ J8 y6 x- K* i# l4 r' e4 i1 j8 u
dp.rgvarg = pokeVariant; ! A( S3 @& n1 ?* S- }( T( G2 ] dp.cArgs = 3;0 ^' i% H+ a9 c8 K" Z% y" X! k
dp.rgdispidNamedArgs = NULL;! G( U0 q' {( H& c3 q- M5 e
dp.cNamedArgs = 0; 6 Z A1 C& ?" E9 V: z8 n/ o: C6 ^8 R9 A+ o0 ] \( l
// Call IDispatch::Invoke()' i& h' {& t+ E8 d" S `
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hr = m_pDisp->Invoke( # B5 z$ K- @! A. {8 N4 _ pokeID, . Y3 h+ Y$ G7 B5 L/ l4 ~ IID_NULL,+ ]# S: B) S4 \/ g
LOCALE_SYSTEM_DEFAULT,* E. N' r" \: \2 K+ T$ c) ^
DISPATCH_METHOD,% ?: I* u. [& F4 d3 L
&dp, |+ u7 Q: I( |% F/ v% R# P( M. h NULL,8 x* i, j7 i* Q; Z8 O
&ei, , d) _' W. g- A8 f z5 i) ]. @ &uiErr); z N. Q, m1 ]/ c0 G9 S% _% N
- x- v8 _0 C, {: ~4 @0 [ SysFreeString(topicStr); 8 s! E( K# K! u( Q6 s SysFreeString(itemStr); 6 j* Z2 {4 i1 S( u+ }% C* c SysFreeString(valueStr);3 x2 A4 E1 _ {. V
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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???/ |$ p: y; S c! ]" M
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???? 0 k0 m- e* X- t) f8 S/ A% o- T: [; n4 A& d
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2.这是request的程序 f: Q1 H0 R) U% n# ^9 {// Request a value from Extend7 L3 a( ^+ Y* Q7 f0 R3 \3 d- T
//3 q/ J @7 s3 c$ t# {7 f) E2 m" r
// Initialize the variant that will hold the BSTR. Set the variant's6 A- C% }2 m3 s( v# Q% P
// type flag to indicate the fact that this variant holds a BSTR. Place the ; p' @4 o7 e' _; G// BSTR into the variant structure./ D2 m3 X& y. {% F& G, l$ R
" y+ o5 u) b' u; C' D+ g# x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - c6 d o3 D( h& b0 r2 A ( H4 {, r q$ [5 c/ e H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 s9 K; L/ m5 @/ O* W& j# t
VariantInit(&requestVariant[0]); 2 @0 [! P9 e( X) h7 g) n c) C requestVariant[0].vt = VT_BSTR; ( i& \* s: ]' L+ G requestVariant[0].bstrVal = itemStr; ( @$ ?6 Q* X5 r! _) y L # }' O5 A; Q6 B t topicStr = SysAllocString((WCHAR *) L"system"); 7 L3 E/ @" [2 e3 d VariantInit(&requestVariant[1]); f! \# n5 [/ |7 l; B, V# s
requestVariant[1].vt = VT_BSTR;+ H; I7 g# \6 t( l# T
requestVariant[1].bstrVal = topicStr; |2 @$ A, s% E/ e* q; Z( R, ^9 u5 a8 r# W) O1 q
// Set the DISPPARAMS structure that holds the variant.+ ^& q0 z( C. o8 K; j( ?
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dp2.rgvarg = requestVariant; $ c" X+ T1 X! W% ^ dp2.cArgs = 2;( k/ C. O" m. P- Y
dp2.rgdispidNamedArgs = NULL; 8 r) S2 }; V; y' \0 v dp2.cNamedArgs = 0;& B, O# T; U/ p7 |4 F! w3 Q# [8 {! d
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var.vt = VT_EMPTY; . p+ k: m7 \; p/ j% q; O, v+ A+ w& L {$ j& N
// Call IDispatch::Invoke() " E1 {8 @- s! L4 t: U' T- `4 U) w' a6 Z/ Y! `# `
hr = m_pDisp->Invoke(8 C- f8 t# J5 V$ O( U. Z
requestID,3 x" O) L/ y! O# U
IID_NULL,* s& A4 k: h$ e. S! t# E
LOCALE_SYSTEM_DEFAULT,1 K) M8 F q; Z
DISPATCH_METHOD,! B6 C& D! g% L4 b4 K
&dp2,5 {0 f2 k( u- S0 f
&var, , {- A0 f: K: K9 W2 N' l) Z5 w; @- c &ei, . k3 r. _( u6 y+ x &uiErr); { c5 p% _ L5 N; d% o - o7 Y$ _, D. h SysFreeString(topicStr);5 T# l( C ~% d' b8 o3 F1 f5 w
SysFreeString(itemStr);6 W z% w0 {2 o! y! R. J
请问该程序是获得extend里面的哪个值?1 K) X) `8 R( Y$ 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????