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:; v' l- |' d: @+ I, _) c" }# R0 a
Name = (WCHAR *) L"Poke";5 ?1 e6 K) @, P1 K0 e
! a! H& O! F: O3 \2 k hr = m_pDisp->GetIDsOfNames ( ! N/ ~" [1 u! W5 c% |) b IID_NULL, // reserved( C' _* w" P; E( X( O) @
&Name, // Array of names to get IDs for( r# l6 A2 b' j8 k) |
1, // # of names in the array - o1 v7 b& ]4 m8 ?7 n LOCALE_SYSTEM_DEFAULT, // System locale 0 w! S* {) O* | &pokeID); // Array of IDs to fill on output " B# P' A- h9 z+ U+ D ^8 q; r & Q+ O5 i+ \, i: ~
if (hr)* R7 N5 ^$ o9 i
{ 1 F* ?$ S, ]) e! {( o7 D: ? MessageBox ("Get Poke Unsuccessful"); % v" d1 x$ u) ? f( H return;% x! @$ F$ [; J
} 4 J& l) ^/ P. o4 V0 j- @ 0 M/ h* i$ V! n: b; s6 F/**************************传递数据给extend**************************************/* u% a2 y; z/ ?
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 O7 L b* x2 c5 q! J+ H% X: ?. d ! q% s! n6 T8 p- i X, P* g
valueStr = SysAllocString((WCHAR *) L"1232"); " D* x) h! s3 Z6 j VariantInit(&pokeVariant[0]); 4 [/ S% e! ~" z X pokeVariant[0].vt = VT_BSTR;, ~% n8 U9 g7 K9 f" I8 ?% [6 f, `* i5 C
pokeVariant[0].bstrVal = valueStr;2 R0 x8 }7 r( U, O' i% _
: [" ]1 F2 C6 S$ e: Q1 F# d
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 f* V* |6 ~3 T$ D VariantInit(&pokeVariant[1]); ! b4 F% t% Y* y6 u5 a4 g# F pokeVariant[1].vt = VT_BSTR;5 H* L; I5 D# q+ U& N w& `
pokeVariant[1].bstrVal = itemStr; 2 k, v0 _1 p& ?8 U4 f$ {/ ?5 f" p7 r" ]9 L- i( A3 e8 h' [
topicStr = SysAllocString((WCHAR *) L"system");. P3 u5 T0 x) f. k: ^6 r5 [
VariantInit(&pokeVariant[2]); $ C9 W" [+ S% G5 G1 w pokeVariant[2].vt = VT_BSTR; & d! X( t$ z g$ s5 I pokeVariant[2].bstrVal = topicStr;' X Z, s9 Y, r! P7 L+ S4 F2 _2 k
0 @* U* x. g6 w// Set the DISPPARAMS structure that holds the variant.! s3 E1 K3 Z) U5 ?7 O2 R
% `/ r$ m. F9 W3 h; c% K dp.rgvarg = pokeVariant; $ S6 G. S1 O0 V/ e! C$ h dp.cArgs = 3; - Q; M: x& I! @. l+ x8 o2 L W dp.rgdispidNamedArgs = NULL; ) C& H7 I- K' l7 p( ^% }- ~8 R dp.cNamedArgs = 0; * Y/ F! g9 l2 D. ?# ]: F0 v' h: L1 \1 X9 t
// Call IDispatch::Invoke() # f* _4 u$ [9 ]0 n) O" v+ [ ; P a) c2 a3 [- w hr = m_pDisp->Invoke($ F8 m& l% ^$ x0 t+ l9 {" m$ V4 j) Z
pokeID, ; c3 P+ W+ Z: Y' ~8 p IID_NULL,* J# B2 O* u/ a, g1 `9 T
LOCALE_SYSTEM_DEFAULT, `+ i4 T t. i3 o
DISPATCH_METHOD,3 [- _- Z d) q, Z+ \
&dp, 1 N7 |1 ^& E; C7 ^1 b1 \ NULL, ' h; s5 V; N: N- c6 T &ei,- [' P7 ` o; c$ S
&uiErr);0 T# g: ]0 e5 b- Z9 P$ \) A- z$ _) p: e y
8 O9 X- O% a; k
SysFreeString(topicStr);$ c; f) }9 L+ }5 e1 }1 b
SysFreeString(itemStr); $ O E) m, G0 _ SysFreeString(valueStr);8 D1 z5 {8 V7 `. ]
( _' w$ s/ ~ ?! G$ F( C
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???+ }4 w6 B, e: Q" ?4 B
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????1 m k' n$ H# w! B: A! H
) @( M3 c z! U/ h% S0 F! k : r( {3 E9 Y" _2.这是request的程序 " J+ n6 `4 ^- Z. A// Request a value from Extend : V3 G- ?1 _# A7 y1 B2 D8 `* L// & D9 B, |$ s n0 s5 _) Z// Initialize the variant that will hold the BSTR. Set the variant's . L; f$ M! d6 P- d// type flag to indicate the fact that this variant holds a BSTR. Place the' P0 l5 ]1 O0 i* `
// BSTR into the variant structure.7 c: @! G8 F& G' R" R
( f5 C$ G( N' K requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 k/ t) D9 c* ]- R/ W8 H/ ^' L
* D4 Y4 I4 ]$ f4 Q, k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 n3 |# t. v6 s l* j, X" v; N- { VariantInit(&requestVariant[0]); 7 ^* X! d+ Q( _6 w
requestVariant[0].vt = VT_BSTR;& S* J# z. _5 ~) `8 C
requestVariant[0].bstrVal = itemStr; " y8 W9 U, Q6 X1 a0 e/ z& z 4 ~/ s. K7 ?( l+ q3 v0 c topicStr = SysAllocString((WCHAR *) L"system"); v/ u4 y( s; U. Q0 L* i
VariantInit(&requestVariant[1]); ) V0 t2 ~% q5 ~. {
requestVariant[1].vt = VT_BSTR; 2 X! j7 g" }" `: M requestVariant[1].bstrVal = topicStr; % F' D) @$ f6 I : q" U% b" q: ?, V( ~9 o3 q// Set the DISPPARAMS structure that holds the variant.% Q8 N; q$ ]4 Q1 q
% B& ]1 o' G( V3 t- P/ H
dp2.rgvarg = requestVariant; & D3 _: g; E- _/ b# o% F8 V dp2.cArgs = 2; , Q! N: B' s- g- ~! W# n* [: U5 v dp2.rgdispidNamedArgs = NULL;' L6 d5 W0 q7 M
dp2.cNamedArgs = 0;+ z& D$ P: D, l* B, k1 Y9 A+ ^
; }- z) G8 m. v! e/ R/ a var.vt = VT_EMPTY;7 `0 T2 f+ h3 V; {; w. Q/ q' H
; V) s$ v& o* m) p% j# w5 F// Call IDispatch::Invoke() ! e! w4 X1 E9 `2 x 9 Z. g# V" r8 @$ } hr = m_pDisp->Invoke(' w' V% W4 O5 p! L
requestID,- _0 M2 f- O$ ?: x! u7 ?
IID_NULL,$ @3 x, N( j; m9 l! i6 I
LOCALE_SYSTEM_DEFAULT,. U6 e& S8 v/ g! `5 K
DISPATCH_METHOD,7 p* T) U7 \7 W) S! M
&dp2, * G, b0 V, X' _/ T! o &var, 1 h0 W) ?( B& s3 b4 Q* o7 j &ei,. E/ d& g! D+ i( u- l/ |1 `
&uiErr); ; e8 r$ H0 k. m& j$ |8 W ( q4 Z- `5 m3 W$ X7 J' ^3 D6 Q: X SysFreeString(topicStr); s! E' [, {( J, n0 V! Z
SysFreeString(itemStr);9 g$ o( v2 c3 ~# G' w& O
请问该程序是获得extend里面的哪个值? ( k0 _8 F* Q, ^# 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????