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:/ F% N6 w, u9 }6 F" h
Name = (WCHAR *) L"Poke"; , p1 d. S& h* T4 R/ h m0 V9 k, R* X 1 R0 y3 Z* y2 ~8 b9 {- L: L
hr = m_pDisp->GetIDsOfNames ( / ^5 q$ O) Q( g! r IID_NULL, // reserved ) K; F- w8 U2 T2 |8 ^% b &Name, // Array of names to get IDs for 9 ~* @; `5 V# l 1, // # of names in the array 8 W. k" [. y5 L( X; F6 V" g LOCALE_SYSTEM_DEFAULT, // System locale) Q X. R% |! ]7 M5 O* n! e5 x
&pokeID); // Array of IDs to fill on output" l1 n* i; Y4 P' u! p7 r& _' a
" `& r! M; e1 t$ C/ @ if (hr)8 A3 \" g- F3 d) N1 ?. o/ `
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MessageBox ("Get Poke Unsuccessful"); , y+ c, X) D R. L- m: P return; ' B0 ^. ^( G! J } , m2 v: O8 I- m3 B' R# V, A& ~' n" z7 X# t" C. c
/**************************传递数据给extend**************************************/ + S" D: |( @, q, U* P& ]- O2 j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& [7 P$ ]7 @5 G6 H0 ~
( U4 p2 h% S. [. t valueStr = SysAllocString((WCHAR *) L"1232");/ A+ q7 v% x- E+ d$ y0 P# L
VariantInit(&pokeVariant[0]); ; J5 {/ o+ [& G& k& I
pokeVariant[0].vt = VT_BSTR; $ q, g9 i) G- d3 Q pokeVariant[0].bstrVal = valueStr; . D0 G! q: ?3 |3 ] n+ c2 T% Z$ b. I( M- S/ G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% Y; K3 a% r: W$ [9 D1 Z3 ~; i
VariantInit(&pokeVariant[1]); 7 |1 W7 i3 ^1 @. X' H
pokeVariant[1].vt = VT_BSTR; ; y- K( Q9 G" P3 a pokeVariant[1].bstrVal = itemStr;7 S+ Y+ o8 q% R* K3 c/ S I/ ?
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topicStr = SysAllocString((WCHAR *) L"system"); 5 e; z: U! y. e! d* v* Z VariantInit(&pokeVariant[2]); 2 j/ R( `1 C) w v9 {5 V" i pokeVariant[2].vt = VT_BSTR; : s- p" Q" v# B pokeVariant[2].bstrVal = topicStr;, c5 R# u: W; n T) \4 Z7 N% q
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// Set the DISPPARAMS structure that holds the variant. + M a! H" V q/ }2 v# l% g/ B" @$ P/ x/ }" _
dp.rgvarg = pokeVariant; 6 s* g' [" d# M. a dp.cArgs = 3;7 H; r' Z% S; I9 n. g
dp.rgdispidNamedArgs = NULL;# f7 r- l5 F! e; P6 u
dp.cNamedArgs = 0;. D- z3 U/ C# G, X! w
% X# }6 n6 Z: _9 U// Call IDispatch::Invoke() + n; x8 D! B6 S9 b. ?& f3 ^! Q* M! ?! F& v2 b {# Q" `) V. q
hr = m_pDisp->Invoke(" Y+ l$ X5 b& ^- w4 ^
pokeID, 9 P; Q" K! E5 m2 @1 G* G IID_NULL,/ o9 u4 W' {! V' q. u e
LOCALE_SYSTEM_DEFAULT,5 h8 b" B0 H4 i$ F
DISPATCH_METHOD, 8 z- s8 e0 _' ?) z8 H* o &dp, 9 L3 ~. f+ f- w$ c3 Q9 _1 v NULL, 7 l" j5 j3 z. q, ^8 v" x; L, ] &ei, 3 T: Q# v* p7 }* Y, ]5 ? &uiErr);% E% k" H: w4 b
$ |( G- b- M; A' y2 _/ U5 W SysFreeString(topicStr); * }* ~/ g: W0 h8 j( W( o1 c8 x SysFreeString(itemStr); 2 J' M: F2 w+ k" @% V; j SysFreeString(valueStr);3 w: \% m4 w ?. B' `
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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??? ( @# O2 D$ Q- e- h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???? , i( T+ t2 a; L 1 n% ] V) m \, y 0 U5 a% u6 o* M7 o5 @2.这是request的程序1 |0 R$ e8 L& C- b
// Request a value from Extend 6 {3 l/ A7 w% T4 ^, Y( P// ( \ C4 h& `9 N N- c$ L: ^3 e. V// Initialize the variant that will hold the BSTR. Set the variant's( e; `; U) P0 p1 m' {
// type flag to indicate the fact that this variant holds a BSTR. Place the 7 R: ]+ L( G" |& }; K. p// BSTR into the variant structure.: f: f9 C- t. _4 J7 [
0 S& q; Z! o" d4 W4 C8 j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , f7 w8 h8 m+ {% E0 K " v+ ~9 E# y0 C; w" X0 t, d2 w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& x. Z: x% b) \! R
VariantInit(&requestVariant[0]); ( s0 V' _. e6 ^* ~3 C. u) f
requestVariant[0].vt = VT_BSTR;* c; s W+ `2 w; `- N
requestVariant[0].bstrVal = itemStr;) o k6 K2 Y4 E f
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topicStr = SysAllocString((WCHAR *) L"system");' j6 i0 V" ~( s
VariantInit(&requestVariant[1]); , y* Y# q; B: z. V8 ?( \
requestVariant[1].vt = VT_BSTR; f0 A& J4 |! A& ^ requestVariant[1].bstrVal = topicStr; & X+ |/ e6 C; i: n) y [! V! y2 U
// Set the DISPPARAMS structure that holds the variant.& B, P; v' E: M4 v( k4 U2 H
7 [) d2 X* K) V: P dp2.rgvarg = requestVariant;+ ?! r( g: I% T; l- c
dp2.cArgs = 2;) T# n2 t" w0 w+ G0 F
dp2.rgdispidNamedArgs = NULL; , l* R1 W: ]% A dp2.cNamedArgs = 0;0 Z3 `) Y% a$ w, R4 b
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var.vt = VT_EMPTY; # U \+ k' V* @7 ^, J% } $ C# ^8 L: C M- K# `// Call IDispatch::Invoke() : c0 B: I# |9 y1 r8 {8 o7 [6 G+ B# x E' p3 x
hr = m_pDisp->Invoke( . Z0 ~8 B8 G/ F' H- }) g2 S requestID, / s, P2 [- C5 ?" r IID_NULL, 2 P+ f) I* L/ `& e) I) ` LOCALE_SYSTEM_DEFAULT,9 j# Y/ y+ z; f9 U+ X
DISPATCH_METHOD,1 M; ]- Y9 l7 I; u5 @# L
&dp2,+ X' c) S6 r1 g( b8 K. Y2 ?
&var, ' i6 @& q1 O7 J &ei, 5 ~! |& c! {2 s1 G &uiErr); - P2 A. A! h6 G+ Y% @9 F, Z7 H2 t ! ^! A7 B0 {3 V/ G2 ?% d4 f* y/ g SysFreeString(topicStr); : Y' x9 B, k* H( I; F! u, g; A SysFreeString(itemStr); " t+ ?6 F' ^2 Y3 b0 T: J请问该程序是获得extend里面的哪个值?8 W- e% K) }3 U& b) _8 Z1 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????