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：1 d# x5 S) u4 V* a& f3 ~
Name = (WCHAR *) L"Poke"; ( y& T, u+ L! i : X1 i$ Q; A8 g# @+ n hr = m_pDisp->GetIDsOfNames (7 R2 v+ W/ P: o e; W& e I0 d
IID_NULL, // reserved4 Q- X% P8 K) l6 [
&Name, // Array of names to get IDs for 8 X% z- C4 y( k: B9 j0 c$ | 1, // # of names in the array $ c4 j K8 F: h" j. @ LOCALE_SYSTEM_DEFAULT, // System locale 2 {- _" @1 O# Q4 Z &pokeID); // Array of IDs to fill on output8 s# k% I* ~" _' V) h
; s/ {0 y3 a+ r% K8 g" u8 w
if (hr) # G- `2 m% }1 `/ [! Z& L { . j- v& q2 r% P J" [, h2 C MessageBox ("Get Poke Unsuccessful");0 @3 `' u: R6 L# W2 T
return; ' C" g* O' e5 c) Y } % M- K, X. v/ i3 P5 T+ d- B$ O; p+ `9 j
/**************************传递数据给extend**************************************/. }+ F( k% n' E* d( R! k
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - s5 C) c* L7 O' U / f9 N- I8 P6 ~ valueStr = SysAllocString((WCHAR *) L"1232");# w5 `$ k" e1 B/ g A: S w# E
VariantInit(&pokeVariant[0]); B2 p- m" V0 l, g pokeVariant[0].vt = VT_BSTR; G9 W) U- M( l0 v( `6 Y5 ?- X pokeVariant[0].bstrVal = valueStr; & c' _$ r4 l" V% U3 Y @9 s! Y7 ~% g. i5 d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 g0 y- o3 J& ]* }
VariantInit(&pokeVariant[1]); * Y; t, ?, y# i5 b& j, B/ M# \2 W3 [ pokeVariant[1].vt = VT_BSTR; / _6 v) p' w+ F t' l4 S; N pokeVariant[1].bstrVal = itemStr; w* S6 v1 }+ o $ D3 s% V8 T$ C/ Y6 c$ H topicStr = SysAllocString((WCHAR *) L"system");8 I; {$ Q+ [6 f! H6 D: |, j' w
VariantInit(&pokeVariant[2]); 6 y T3 K8 W- b7 k$ y) M
pokeVariant[2].vt = VT_BSTR;( C% v% x8 n4 R" k, e
pokeVariant[2].bstrVal = topicStr; : S8 N* }9 V7 A* `. D/ H7 T3 p c* E' E6 L, E5 @' X8 n+ F8 u2 D, d
// Set the DISPPARAMS structure that holds the variant. # ]5 N, f9 G. N & \+ B' D* O- }! i dp.rgvarg = pokeVariant;2 V- }6 u- Z0 B, A) @% ^0 ?) N' M- Y
dp.cArgs = 3;" t, G1 q* N" C% a, Z5 L/ {9 W% y/ ~7 L
dp.rgdispidNamedArgs = NULL;. ~3 X" J+ @9 L* w* K# s
dp.cNamedArgs = 0;) D; i6 d; W0 E+ F: t
1 P- f4 O$ [* A# R9 ?// Call IDispatch::Invoke() " v3 H! r9 t" I6 k ; p/ R8 o0 j) _ i hr = m_pDisp->Invoke(2 D; {& k& W' K% i& v& I0 P9 a' f
pokeID, ( |( e% G; e( c& w' F% o; o IID_NULL, $ H/ x2 D# Y3 \& H! { LOCALE_SYSTEM_DEFAULT,- N8 n# K4 ~1 }4 d9 ]) L! ?
DISPATCH_METHOD,; l+ S4 ]& i$ O$ Y) c- o( l
&dp, # d& _9 x( ^6 I( V" e( d NULL, 2 S' g9 w/ `' j &ei, , A7 l! z; V9 y8 s' i &uiErr);5 b1 ~) a2 {3 r7 q6 z) ~% l K
4 _6 ^( ]! _( X SysFreeString(topicStr);3 [1 Z. c0 ^8 {0 H$ t; u
SysFreeString(itemStr);" T1 D5 o B. r4 g
SysFreeString(valueStr);% D' x4 V1 ^/ f5 G1 v v% U+ Q
6 r9 P& Q0 s* o* a
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？？？ ; c/ v& l+ m6 l: o. F# O+ d3 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？？？？$ o& n- e) f- d& z" c
3 z9 p! |/ ~/ A$ Q7 |- x I" T2 J & `: z2 ?* X" Q2 \2.这是request的程序9 }8 c) B/ D$ x- B4 H
// Request a value from Extend5 V# T, V& T1 F3 T, n, T5 w
//( ~+ p' I! j) E
// Initialize the variant that will hold the BSTR. Set the variant's' @1 M8 H5 K6 {0 S) M
// type flag to indicate the fact that this variant holds a BSTR. Place the* ?3 N5 d4 B2 b6 a2 ]
// BSTR into the variant structure.8 ?% Y% e9 E% I! x6 A6 M* r6 x4 b
T2 S' Y: Q0 i8 V: G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& U% U& B0 I, ]
4 W) ]1 d2 y+ G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; m! A; g' o, I: c VariantInit(&requestVariant[0]); 7 x' |* e0 b) _ @( a. e& t requestVariant[0].vt = VT_BSTR; 4 J$ u9 }; u9 `) H) E requestVariant[0].bstrVal = itemStr;5 c5 D; r6 X; M& z, s! Z
3 @ n! t0 k% R8 U N3 }1 ? topicStr = SysAllocString((WCHAR *) L"system");- N+ Z3 s, f+ B6 g; L
VariantInit(&requestVariant[1]); 1 {4 U7 U# s3 k: K requestVariant[1].vt = VT_BSTR;, x" ^9 ?1 I, [0 `; P2 c
requestVariant[1].bstrVal = topicStr; : |3 p6 w6 V: O5 N! _ : H/ ~/ q3 P) q// Set the DISPPARAMS structure that holds the variant.+ k4 U8 Z: u9 b( e2 M' f
# [2 l. C6 W2 O: G! {( q dp2.rgvarg = requestVariant;' x5 {$ Z2 w4 w8 g- J7 i6 x; _' T
dp2.cArgs = 2;0 X/ t; [' T$ [ P+ f: Y
dp2.rgdispidNamedArgs = NULL;- t3 L$ ^) M0 R/ e
dp2.cNamedArgs = 0;; U! e- @% b3 y
( j/ s+ O6 y: K. A8 |1 T var.vt = VT_EMPTY;; q5 k$ z' K& h8 n' R
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// Call IDispatch::Invoke()7 q* E0 n% t* z
; }5 E0 P9 C7 ^7 O hr = m_pDisp->Invoke(* c1 A- y! Q! l% F. E& f
requestID, 1 j! F Z+ [8 u, R* E. v+ {/ Y8 B IID_NULL,8 S+ e3 s4 T2 I
LOCALE_SYSTEM_DEFAULT, 3 V: |6 Y. p8 O T; n; y! {9 O DISPATCH_METHOD, # T# C' Y3 k& i' R* `9 h. O9 ?' O% c &dp2,! |) r$ y% R2 ~. V# [
&var,& t# c# L0 c9 r, I9 Z
&ei,& B7 r- G# J6 J/ r0 Z
&uiErr); , H' d1 A; |7 F" T& _+ m# V$ g ^8 d' H
SysFreeString(topicStr); 0 l( t Z* D+ o7 m4 d* r( Q9 ] SysFreeString(itemStr);% K9 g4 D/ c! }) W8 U
请问该程序是获得extend里面的哪个值？8 |" o% j2 W: T
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？？？？
发表于 2008-11-25 19:37:03
