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:8 g8 r+ t/ Y! ?' d S
Name = (WCHAR *) L"Poke";! `) |; J: N3 a
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hr = m_pDisp->GetIDsOfNames ( ! e+ t R$ L U6 \# Q2 S1 A/ W IID_NULL, // reserved; f* L& u9 P9 y6 c" V t6 o
&Name, // Array of names to get IDs for 3 s8 W6 d5 s3 I, [9 M. W 1, // # of names in the array 8 U8 F% t1 C4 h2 X LOCALE_SYSTEM_DEFAULT, // System locale 9 K9 V' b1 S- V &pokeID); // Array of IDs to fill on output , k$ B" z3 |: x# Z % Y$ n5 c" F, Y* J0 K7 l d if (hr) a' Y% {9 @; I/ h {9 W/ _, m1 G- |
MessageBox ("Get Poke Unsuccessful");6 @/ B9 n0 K3 B3 v( z6 r
return;" S) J) _' G2 o% D$ A
} 8 q4 j$ _8 S/ Q" I. G2 a6 \ ) e: P3 e: ~) `0 O7 P$ |8 w5 a/**************************传递数据给extend**************************************/ 4 J8 m1 [+ k& w1 r2 g: X c pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 S: D4 M# |, O, F - L; Z; M' w# i, }5 t
valueStr = SysAllocString((WCHAR *) L"1232");; z' E7 s; l: Q/ l
VariantInit(&pokeVariant[0]); 2 S' q: k5 {# H* ]5 d* u- w' @& `2 \ pokeVariant[0].vt = VT_BSTR; $ }7 |3 u% t& I" u, f pokeVariant[0].bstrVal = valueStr;- E. |4 }0 X- ?4 b5 u
$ H% K* i8 {/ P5 @/ r9 S/ n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 k) ~3 M9 u( @7 q8 C. D# ^7 ?5 v VariantInit(&pokeVariant[1]); + w! O2 f% @( U# z- n6 y
pokeVariant[1].vt = VT_BSTR; 7 B4 O: A: F/ S pokeVariant[1].bstrVal = itemStr;! c+ ^) [- r) J
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topicStr = SysAllocString((WCHAR *) L"system");3 S- a# D0 P2 q8 o
VariantInit(&pokeVariant[2]); # K( |: h/ c! a$ s3 Q pokeVariant[2].vt = VT_BSTR; ( c1 |6 v9 V p, p7 B0 `; V pokeVariant[2].bstrVal = topicStr; ( f7 u Y' V4 E- K3 C' x F6 b& o+ p7 W* ^
// Set the DISPPARAMS structure that holds the variant. 5 T" ]- Z$ i1 g! k$ |" x. v ) r: {* X7 |. ^6 ~ dp.rgvarg = pokeVariant;. h1 c! `4 x* w! y$ p- ^
dp.cArgs = 3; 5 d* o& n# ^' Q dp.rgdispidNamedArgs = NULL;" u4 Z$ j x9 O _7 C
dp.cNamedArgs = 0; $ ]% ?6 p5 x; O- |% Z " \2 ?; I! Z4 T* R// Call IDispatch::Invoke() $ f2 c# @# i7 I% C, Y$ D ' X& N, ^9 n0 b8 y& c hr = m_pDisp->Invoke( 9 N1 d, @1 o9 ~! j pokeID, . H$ S4 b( C, A( D- t IID_NULL," I6 K$ ]! S) M( a- a
LOCALE_SYSTEM_DEFAULT,2 Z. X& X* K( o7 f$ H A! F" @4 P
DISPATCH_METHOD,+ `; A( B# {) P# |% N" }
&dp,9 g* c6 ]# J: [. X* R
NULL, ( T: X7 P0 ^, q; {3 P' D: ] &ei,0 w% N) }$ [- S, }- B
&uiErr); , y, b; s C5 N; a) o 8 Z7 P2 W- l9 R. |$ ~1 J SysFreeString(topicStr); % ?9 V+ v9 Q& _9 E SysFreeString(itemStr); $ R, m4 \' i0 h7 a) r! O: V* k: D SysFreeString(valueStr);7 _. p: G {4 ` p b
% _# n6 w( Z+ @5 X" q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??? 0 p4 g* [7 Q" A& 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???? # T7 f4 J( T2 h0 o H+ L1 q , Z5 F3 Z% H" l8 _- w5 y# C 2 C1 c% R- v7 ]6 }0 v2.这是request的程序 : N0 b$ g M0 W( g$ ]// Request a value from Extend* j, v/ v. P$ d% B/ k0 C, Z9 I& s0 \
//- `3 g8 G) N R( M7 C% U$ z
// Initialize the variant that will hold the BSTR. Set the variant's 2 Z% c9 N( c4 ~! D2 }// type flag to indicate the fact that this variant holds a BSTR. Place the 4 m9 \! M0 P2 B2 W// BSTR into the variant structure.8 q; _7 y& E! B( e; i
0 c: T/ p6 x$ ^. A4 b$ { v V+ V requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # g' L; ~; I3 E 4 p, C4 \. C# s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# ~: k: E; e: t+ k
VariantInit(&requestVariant[0]); , }- b f& E- Q1 d# Z1 ] requestVariant[0].vt = VT_BSTR; # g5 y6 a1 X! n! q2 B requestVariant[0].bstrVal = itemStr;3 U& h; b* b- b, k1 g/ @. Y
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topicStr = SysAllocString((WCHAR *) L"system"); ' w' u2 q! g/ x9 L$ ]4 Y VariantInit(&requestVariant[1]); & v. F- v! r8 J& B requestVariant[1].vt = VT_BSTR;& ^% t, ~. Q* v/ P" z* [1 b- j+ H1 ]
requestVariant[1].bstrVal = topicStr; ; d, [* K. {: u- {: b& Y. j % G1 l' W" k0 p& k// Set the DISPPARAMS structure that holds the variant. 2 c4 d' T$ u' o8 N8 ?7 }! J 0 e8 V3 |' W a4 O/ p* \* f" G: Q' e+ ? dp2.rgvarg = requestVariant;* Q) l1 l6 }9 l
dp2.cArgs = 2;8 x1 p5 G& G: `2 f* H. j: f! B0 z8 B" y
dp2.rgdispidNamedArgs = NULL; 0 n) m3 a4 U6 y6 Y: f# Q0 V dp2.cNamedArgs = 0; 4 K/ V% u9 `% n t- F2 ` i( P5 v
var.vt = VT_EMPTY; . |9 _/ w! ]( M, E1 u" K- H& d / Q- ]$ T+ h& ~; m+ c// Call IDispatch::Invoke()% m. L) |) y7 ?/ ]
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hr = m_pDisp->Invoke( 3 N0 t; k3 i3 R: C; ]# Z requestID, & y4 W8 Z3 ~8 h2 p, ~ IID_NULL,: q7 R( a8 R) o! ]
LOCALE_SYSTEM_DEFAULT, " P( r A) B) M7 G7 l5 i6 L DISPATCH_METHOD, * I* `3 z, i8 {* ~/ _4 l &dp2, 3 N/ Z4 M, N: \8 E! Z! s7 c &var,* e$ q# X; B# a* j
&ei,4 f1 M. T+ \, x* G8 P8 _: h9 D
&uiErr); 5 S& L7 N5 b$ J6 L0 L1 Z1 }7 f" r7 y) m
SysFreeString(topicStr);" q, H/ j- |$ V
SysFreeString(itemStr); ' w: Y Y$ b. ^4 C$ d请问该程序是获得extend里面的哪个值?; Q# S$ v5 \: g% 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????