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:* S6 r7 q f2 Z# }% t0 B8 H' s
Name = (WCHAR *) L"Poke"; ( O; l; M$ p6 x) R1 Z8 p/ J - E4 @4 M& `" Y hr = m_pDisp->GetIDsOfNames (! w# D o* @- ~1 R
IID_NULL, // reserved 9 e% l3 r0 K& Z1 d2 W! D3 } &Name, // Array of names to get IDs for c/ m- d$ D2 i0 b6 L e 1, // # of names in the array' \" I; I/ L1 @* W9 d _
LOCALE_SYSTEM_DEFAULT, // System locale 9 Y& g# J0 [3 _# p6 y0 }8 u- z &pokeID); // Array of IDs to fill on output " L& D) K/ r3 x9 z ) h7 |6 W ~: v
if (hr) * }! {; o- M7 S {/ L* R1 r9 i( {, g" K7 i$ E( P
MessageBox ("Get Poke Unsuccessful"); + | _- Y# `' K: S5 n return; * ~; U" U0 K: T3 c } n4 f, _& t8 M% Y/ T& @
. W( ^% ]8 D8 j# p7 @! `- o: N/**************************传递数据给extend**************************************/ ; c$ y+ H) o N' j# z% ^ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; q" k2 r3 a, e* a# E* ~9 t 6 g% D7 S: Z7 ~- _
valueStr = SysAllocString((WCHAR *) L"1232");' \. b3 t+ k, w
VariantInit(&pokeVariant[0]); # Z2 W) S7 t6 @9 R1 W; @4 M
pokeVariant[0].vt = VT_BSTR;/ q* n' m3 e" f5 ~' D
pokeVariant[0].bstrVal = valueStr; 4 L- p% M& { g7 p6 {3 ~ ! N P. m) [, N2 n" Y& {3 v0 q; W0 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - [, i/ B& W+ A7 f$ ~' O& x VariantInit(&pokeVariant[1]); : O) I( g d; @' g& ~0 ?9 A pokeVariant[1].vt = VT_BSTR;- J0 E& G* C( f5 Z% C
pokeVariant[1].bstrVal = itemStr;7 M8 J2 }3 n$ u
; R. V' I4 k, B5 \ topicStr = SysAllocString((WCHAR *) L"system"); ; v8 \9 Y& D- P3 k9 p3 G: O. D; S VariantInit(&pokeVariant[2]); 1 n5 e$ \0 ]7 U pokeVariant[2].vt = VT_BSTR;, P$ X( ]) K: H% f
pokeVariant[2].bstrVal = topicStr;. ~( V% G' `8 l6 A& @: w, W
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// Set the DISPPARAMS structure that holds the variant. 8 S* ~( l' j( d5 _: ]/ D) j. m+ l' @! y! m% }, W1 S: t
dp.rgvarg = pokeVariant; o7 ^, R% O5 B' s/ a dp.cArgs = 3;$ X% L3 i/ E' X4 D
dp.rgdispidNamedArgs = NULL; 5 E. S7 r! N& @) I$ j dp.cNamedArgs = 0;1 }" M7 J; }. |7 S J/ y# w/ r
0 l4 r5 p r9 j5 a$ a+ V3 \3 A1 T// Call IDispatch::Invoke()9 Z+ ?+ b3 L0 ~+ ]# g
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hr = m_pDisp->Invoke( . g) b y' E. [; [: B/ E6 Q pokeID,& q* i* ^/ {: H f( F/ j4 W: m
IID_NULL,4 ?' x$ o5 _8 T" c
LOCALE_SYSTEM_DEFAULT, + U$ }8 }8 N/ }) { x; h DISPATCH_METHOD, ) g9 m1 C3 \" J! m1 G8 g5 s &dp,1 O' _5 t! i* A- g4 ]$ C
NULL, 9 G$ M9 D) @; I( m3 b &ei,1 l* k/ y+ l: \3 \3 F
&uiErr); 1 p. R0 a9 W; t# ?# ~) K1 c. {" Z& F% N7 N/ V, J/ V
SysFreeString(topicStr);( }' b: k5 V0 h
SysFreeString(itemStr);3 \! V" m/ \- K2 S2 M
SysFreeString(valueStr);6 f. H% R& M9 |2 \; [
% G) S. p/ `, Z2 P5 a- D) d; P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???) t3 ^5 Q3 y& n& Q/ ~
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???? 2 D T7 S0 g# v4 D! O2 w - r0 [( A; m* J+ k' y V4 c 9 d* ]7 v7 M; {0 @) l1 Z2.这是request的程序 - Q. Z) [- ^6 S0 D2 J5 {// Request a value from Extend 7 z, g2 z0 ?/ r9 ^2 N+ z// * R: C; V4 m3 C4 K ~. o+ l$ m' O// Initialize the variant that will hold the BSTR. Set the variant's0 p4 ^! q$ z4 z7 `4 E$ @' n8 G
// type flag to indicate the fact that this variant holds a BSTR. Place the5 P: d6 b8 a/ R* G9 a) [# n' @
// BSTR into the variant structure. ! O; H* `; j" a 6 Z. z! R- {: Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 K( b6 G# V7 a8 A' `1 p; Y8 C
( t" {3 z n6 R! _$ V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % ~& S& x4 H# y7 \: u2 F! D VariantInit(&requestVariant[0]); # P7 _" a/ d: F6 Y) e! f* A
requestVariant[0].vt = VT_BSTR; a' \* L! x! w* A
requestVariant[0].bstrVal = itemStr; ' U0 p: f4 v% Z5 ~ S G2 F9 o: C5 Z: `5 o) a/ Q topicStr = SysAllocString((WCHAR *) L"system");+ `# S) U. P; ~7 _) y/ g
VariantInit(&requestVariant[1]); 7 w( J4 p/ l; w( |8 d5 a
requestVariant[1].vt = VT_BSTR;. s/ } g, `' H9 ~+ i& J8 f
requestVariant[1].bstrVal = topicStr; $ U: v! p& F% a9 v' A 5 s2 {& V0 m y6 y6 i! ]// Set the DISPPARAMS structure that holds the variant.+ y& E, M0 r9 m& } o7 z