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:6 _1 m. ~9 ?" U: I
Name = (WCHAR *) L"Poke"; ; ~ U; v- ]/ c- i3 G 3 X Z9 I+ h @' B: o8 b' K
hr = m_pDisp->GetIDsOfNames ( ; A* E; N9 a! }" ]# m# o IID_NULL, // reserved2 m! }2 V( h* [ A) [8 m% b+ R
&Name, // Array of names to get IDs for 2 w1 ?: R; m3 r- }6 r 1, // # of names in the array ( O5 s T1 V+ |+ O6 |( W LOCALE_SYSTEM_DEFAULT, // System locale b( i% f$ j+ V &pokeID); // Array of IDs to fill on output" u% `; B: l. w4 V
5 Z, \6 l0 u: X) Q$ ] if (hr) 9 b0 q9 j& s, j+ A: J1 p" X A( y { ! \3 J) S; F; w MessageBox ("Get Poke Unsuccessful");/ R8 Y) {( [ |5 R, p4 x0 g
return; ' m; K0 G4 p0 p0 e } 0 L& Y' j8 O+ D, v7 [( f$ Q: _( M: ~; x
/**************************传递数据给extend**************************************/ % q+ ]/ _. ]4 K3 i1 N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 x3 V7 G" l! z* h8 p( E
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valueStr = SysAllocString((WCHAR *) L"1232");' f+ Q9 S& K0 G, @* r) l
VariantInit(&pokeVariant[0]); : Y( Q: d6 r$ T" b# ^
pokeVariant[0].vt = VT_BSTR;/ |$ p, c! G5 s* n5 \. r
pokeVariant[0].bstrVal = valueStr; $ j; t) J2 j0 H! R$ B9 J$ }5 G/ f+ C) Q! }1 B& q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); q1 K: `0 L. k. G! ?! a; e VariantInit(&pokeVariant[1]); s% u7 w( ?- h, T7 V! N pokeVariant[1].vt = VT_BSTR;) d e7 ^! {: \7 O8 G
pokeVariant[1].bstrVal = itemStr;* b# ~& F3 v/ c+ }0 _3 m% o
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topicStr = SysAllocString((WCHAR *) L"system");( {/ a, V+ [% n' v, [5 l
VariantInit(&pokeVariant[2]); " b4 y4 X: k. s6 u* k9 X5 i
pokeVariant[2].vt = VT_BSTR;& t' @ J+ j! o8 ?7 ^
pokeVariant[2].bstrVal = topicStr; n! p9 ~$ K, S+ T$ k% z 8 M2 h+ g" a7 Y8 x; Q4 S l// Set the DISPPARAMS structure that holds the variant. 7 i) i6 g/ _4 f) p5 [ * g/ {5 h7 R+ s$ C8 ~7 X5 G, r dp.rgvarg = pokeVariant; # F! `6 z& x9 H4 `# w0 [ dp.cArgs = 3;* q0 Z2 o9 f2 q( E* `9 b
dp.rgdispidNamedArgs = NULL; & c7 E0 f; K& q dp.cNamedArgs = 0; 3 X1 b) A2 |& q( H& I; h4 Y. o! J. Y# |, Y# U+ x( g' \& H4 X6 b* N0 {
// Call IDispatch::Invoke() 0 J3 d' r7 L8 a0 O6 W+ C' z9 Q& p- N! [ n4 c; s" G
hr = m_pDisp->Invoke( + y- n, ~2 Z- D! c2 x& \ pokeID, 6 N0 P" W/ m, f# W7 i IID_NULL,2 t8 Q3 t# j* N: a; ^
LOCALE_SYSTEM_DEFAULT, ! B+ g; q; W! R+ U; |& V7 v2 t$ R2 a DISPATCH_METHOD, n' d0 z) C$ q% R
&dp, ' a) x5 i5 b0 ~; P( a. B9 k2 U NULL,$ H: \! t& f, P3 T( g+ G: N
&ei, 9 t; n, \$ y; [, J/ q &uiErr); 7 X/ o- }* [' g0 \5 ^* ~ 1 |" w7 `+ G) f9 |8 u( }; q SysFreeString(topicStr);/ |3 s" |- f( i! r7 z2 P6 C/ b
SysFreeString(itemStr); * {+ b6 ^' [4 E2 x) \8 R SysFreeString(valueStr); ' Q" E. Y/ {, x8 e 7 q# z: E# O( P1 r) `. X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???$ ^+ J& u d: t6 |- ]4 s: }) {2 e
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????/ H6 q( h4 _6 w9 b6 b& E
% V7 }+ R! ^4 I$ d6 B, G# x! `- { ' r, f ]) _- U) ^' A2.这是request的程序9 j0 ^# X2 W8 K% h$ `0 S# l: C, q% i
// Request a value from Extend: W! h3 E' N* j! n/ @ Z5 Y
//1 N$ ^1 |- G5 H C" N
// Initialize the variant that will hold the BSTR. Set the variant's. A" u' u U$ X4 f# C- O2 t! l
// type flag to indicate the fact that this variant holds a BSTR. Place the % c4 g" I, q @2 A) Y* h% v// BSTR into the variant structure.* A' @/ x/ Z; a. f. t3 s
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 g1 D V3 Y' H' l$ m( r5 `( P
) i. |* O5 V9 ]) X3 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 @: t9 P; v" r7 W VariantInit(&requestVariant[0]); r) w' Y$ L# {$ D" u1 u: o requestVariant[0].vt = VT_BSTR; 6 c( ^+ [* @7 A# ~& K requestVariant[0].bstrVal = itemStr; , d( Z% E& m" M5 [5 p3 y9 X/ X6 [4 I' ?( F
topicStr = SysAllocString((WCHAR *) L"system"); , P( O2 [! k, n2 e VariantInit(&requestVariant[1]); , r+ ?9 `0 C7 l* R
requestVariant[1].vt = VT_BSTR;( P. h0 T* f- s n
requestVariant[1].bstrVal = topicStr; ( W; P, S+ ^+ c7 Z1 R" t( O D8 P( q; p
// Set the DISPPARAMS structure that holds the variant. * {) }) g2 u$ c: t" L) `: ]! N4 D8 |6 S$ [' R
dp2.rgvarg = requestVariant;4 z- ^9 K6 q3 R7 q3 X, o' [3 ^
dp2.cArgs = 2; . g, b0 [5 u- T) r1 u# n dp2.rgdispidNamedArgs = NULL; 0 t; t2 h* B4 r5 n5 }% a/ N# ~$ b dp2.cNamedArgs = 0; " U+ H, T3 t$ R/ k" e5 X 8 a$ v2 L( r( B' x: ~ var.vt = VT_EMPTY;. C6 d& E8 ]- j9 y* c1 r
( V( y# D$ r9 U. w) q# z. s! v% y// Call IDispatch::Invoke() ; j n; T* m) P+ a! @& s" d6 L- y3 l 3 t! x, v M2 \) _0 x hr = m_pDisp->Invoke( + B" R- T5 T" P: m) v% F. r requestID,1 S: C2 G2 J8 ?0 u0 |
IID_NULL,( Q0 H: s. W% Z, J8 d
LOCALE_SYSTEM_DEFAULT,3 \9 M/ n9 ?$ m3 l# a2 P
DISPATCH_METHOD, 6 W$ U( T+ t7 `. a+ A &dp2, 5 P3 C0 l5 p& P. Q3 B. g) L &var,3 ?- f0 G+ B- {) j, K
&ei,: ~+ x) @9 B0 r1 |8 ^( X% Z
&uiErr);( ~4 ?; _, ?2 c5 {