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:. T$ {( H1 s% ^! r
Name = (WCHAR *) L"Poke"; 4 o5 V7 o+ |7 O" ^! H # R5 x1 w x# ?3 v# R- U* H
hr = m_pDisp->GetIDsOfNames ( - p( u! h# b8 w4 J* _) [; F/ `2 O IID_NULL, // reserved7 X) L; V" M" }3 M t! r; Z
&Name, // Array of names to get IDs for ' Y6 a/ _! } o' O/ i 1, // # of names in the array ; K" q: I/ W) T) g9 w) k LOCALE_SYSTEM_DEFAULT, // System locale 1 g* a9 d7 d- S9 _0 Z3 m &pokeID); // Array of IDs to fill on output e8 s7 ^4 H3 ?3 i/ b2 m1 D
% w3 d* W# v; N: G% C
if (hr)! e* k, |) M Y( P( \4 f7 F% p
{* r9 D. P' e. }/ A' B8 T5 E
MessageBox ("Get Poke Unsuccessful");3 a% Z: T3 K8 ?* |
return;2 W2 m# G! m x b2 N2 w
}$ T( h) n1 E( n; Z( K8 c& _+ Y
! T$ M& e/ E5 D' C
/**************************传递数据给extend**************************************/" `( c f. M$ s$ V
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . _2 H( S8 Y2 q ' Z: l k1 [* @% U# H
valueStr = SysAllocString((WCHAR *) L"1232");) y- u# d2 Y9 D6 n; s: R( K) a
VariantInit(&pokeVariant[0]); 9 w3 D: W$ h1 l pokeVariant[0].vt = VT_BSTR; 9 r# u# x( x" T$ t0 Z" [ pokeVariant[0].bstrVal = valueStr; $ b P8 ?. f! p+ o L % }5 D4 l! N H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- r1 ?! d N6 h% D! H8 J
VariantInit(&pokeVariant[1]); / L% ^. O0 i; p: A4 R8 g pokeVariant[1].vt = VT_BSTR;7 r9 a& G4 X1 J3 Y9 i7 R2 r2 E: O% u
pokeVariant[1].bstrVal = itemStr; ) E* _2 w& `/ Y9 a 0 Y0 h7 D+ ~$ f topicStr = SysAllocString((WCHAR *) L"system"); $ v) T, {1 i% D! `9 G( a1 n VariantInit(&pokeVariant[2]); " D- I0 O. b/ l* |! o& w
pokeVariant[2].vt = VT_BSTR;2 c A4 S u# a# f
pokeVariant[2].bstrVal = topicStr; a' u! h) T3 ]! @
7 @# ] c. k8 f2 ~+ r; q; F0 a
// Set the DISPPARAMS structure that holds the variant./ w' y7 W3 ^$ G' j B% Y
% F' D% l5 ^' J' n dp.rgvarg = pokeVariant; / T6 D' ~# i7 ]! f# ]3 A' A dp.cArgs = 3; ! s9 C- e$ |0 z8 P8 L0 r dp.rgdispidNamedArgs = NULL; + R* Z- ?9 f. s* D# a. p% u, h, | dp.cNamedArgs = 0;2 J2 W2 {4 b( @& e
1 Y2 p- S& i9 e; I, I
// Call IDispatch::Invoke(), T9 M# C$ m+ d. _
! w' V4 j; d7 H" |8 u- p+ h
hr = m_pDisp->Invoke( ) X! z% O! b# }" X8 W$ Z# ^ pokeID,: [( D; ?: ]% w0 F+ v2 F s, x+ c! k- c4 y
IID_NULL, ! Q) e' H6 ^! H4 g6 P LOCALE_SYSTEM_DEFAULT, 5 n2 Z s9 ?8 b Q DISPATCH_METHOD, 4 v6 m5 h) W6 F; p% [8 Z &dp, 0 v& h+ p2 u; F6 F5 N' z; s% E NULL,+ F3 F. G6 h) i! U4 _% H* c7 Y
&ei,7 n5 u9 ]$ ?; t. |6 i" X
&uiErr);+ R. X1 A. @9 k7 t1 W. @- j9 g
: P7 `/ a y4 i& |. i
SysFreeString(topicStr);3 e# Y( `9 q" r5 ?8 n
SysFreeString(itemStr);, S/ }8 U1 q- n0 G! o/ O* [, t
SysFreeString(valueStr);/ ~; e. H6 `) W) w: Y" O8 ?5 @
# V8 a7 ~8 ~8 U7 U, ^9 j5 M. n8 [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???; ]/ I& s: @3 K; g! v
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???? % J0 B ?6 E. w0 K1 c0 R; D( W3 s! `8 H- G
: H4 e o& c" ?( h* Q2.这是request的程序 ' I1 d) \) ]& p5 w3 `' ~: p8 h// Request a value from Extend' Q' R9 Z: q& f3 C# g$ Y
//% m2 Y0 h9 F$ H8 w+ y! b+ e
// Initialize the variant that will hold the BSTR. Set the variant's . j& A- C+ B( C// type flag to indicate the fact that this variant holds a BSTR. Place the : z9 W9 t% s; e' P+ C2 }4 d; g v// BSTR into the variant structure. . d' c$ x: C; H2 n$ e( r+ {' O7 k* J0 M, A# b. H; a- o w. P: ?
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 d# y9 K0 {$ M7 K' @
5 O" x& \8 m3 x y6 I+ Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - f7 c/ o( N9 a( K% @0 o VariantInit(&requestVariant[0]); 1 v# V6 c2 F6 z$ K% P
requestVariant[0].vt = VT_BSTR;2 H. r- |# }- i. ?
requestVariant[0].bstrVal = itemStr;7 t% r9 ]" C, X7 J9 J9 i
- |* M) v% i& q9 `1 j topicStr = SysAllocString((WCHAR *) L"system"); , ?7 j+ U2 _+ W5 F4 i( F! X VariantInit(&requestVariant[1]); : N; j% Z, T( O4 R$ ? requestVariant[1].vt = VT_BSTR;' i; I1 T* {0 p0 o, {
requestVariant[1].bstrVal = topicStr; 0 W/ N# F3 k6 M4 ~) d: V) l8 ^1 C9 x" f- Y) Y
// Set the DISPPARAMS structure that holds the variant.3 K6 q- F1 s4 v2 R# o# O
, l1 j' _8 [; g$ D
dp2.rgvarg = requestVariant;+ l5 {. x7 y+ C4 a. X# o
dp2.cArgs = 2;/ p# q7 W7 Y2 r( u1 L& @: s
dp2.rgdispidNamedArgs = NULL;" b! ^! F" S; h5 `) r0 C5 T
dp2.cNamedArgs = 0; ! n5 e1 b& N; J( T- \" O: Z7 H8 X! ?5 j$ g$ X/ c, g7 d, [+ l2 m9 b; D+ L
var.vt = VT_EMPTY;1 x# {3 M2 _5 @- U# v$ T
- e* R9 n* R% d, E1 r
// Call IDispatch::Invoke() 5 P/ R5 v2 t) A" G" {1 l$ e" E/ k$ T: y4 ?- S% }
hr = m_pDisp->Invoke($ ?! W4 ^5 |; }; h1 `+ l: j
requestID,) ]5 @! G7 P/ W2 `1 M0 ^! g: F
IID_NULL, . }7 a8 j2 r" _9 w6 o LOCALE_SYSTEM_DEFAULT, , y7 u) k' r+ @( m DISPATCH_METHOD, / |: E; c/ R4 c' s &dp2, g1 w; f- _* ~% s$ }8 y
&var, : A3 C$ }' }8 ] &ei, # `2 K" f! T5 L' k- Z0 I- C: [. E &uiErr);6 @% ?5 Z) E" q1 \
) }' a w. e4 ?, T9 B
SysFreeString(topicStr);2 L. y- b$ y, t0 }6 }# x" z6 E
SysFreeString(itemStr);& I( N. @) R& _* G( B
请问该程序是获得extend里面的哪个值? 5 ?9 z" ~' d1 t- \" S9 B: W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????