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: ; i* t: o! I" u d/ V; d6 Q+ wName = (WCHAR *) L"Poke";1 v' ?0 {# N. T
4 e' ]) W( R6 Y' S. X4 M hr = m_pDisp->GetIDsOfNames (; e9 q H+ Z& ?
IID_NULL, // reserved" @6 Y$ Q6 x- k( `
&Name, // Array of names to get IDs for- G; r2 F) l8 n3 B' v, ]
1, // # of names in the array 6 w7 X( F; J G5 h$ @1 m LOCALE_SYSTEM_DEFAULT, // System locale 2 I8 k: c) r" X7 K &pokeID); // Array of IDs to fill on output1 I) ]& h/ ~' x/ [
. _9 l- ~' ]" B/ h$ A1 P if (hr) L% @7 X; E4 a; Q' P5 x' |
{' C, h1 V8 p; U3 a8 {
MessageBox ("Get Poke Unsuccessful"); $ d/ y6 {0 |" \0 R5 { return; K5 |( q/ d2 ^% Q) Y( M
} 0 s+ f$ C1 [; j ' |. m- s% n$ q/**************************传递数据给extend**************************************/ - l" S: j4 x& t$ Y) a. B5 R pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) Q- f6 v; F. W9 g6 h# V
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valueStr = SysAllocString((WCHAR *) L"1232"); 1 ]( Q8 i/ Q8 j' d7 \( M& a VariantInit(&pokeVariant[0]); 5 Q3 f" ], v( y R* M4 L* e' i4 ~0 ]4 t
pokeVariant[0].vt = VT_BSTR; - a& P+ u- t9 |6 f& L3 t pokeVariant[0].bstrVal = valueStr; - q, S( c& u( e+ G* q# [4 ^; |4 W0 m- \9 F+ e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' k. E8 S; M }3 j+ E2 \
VariantInit(&pokeVariant[1]); : c% B |7 i: e# S. [
pokeVariant[1].vt = VT_BSTR; m* k( f; a5 _4 W; z; v' j: v
pokeVariant[1].bstrVal = itemStr; ' d3 \. ]# E; Z2 T K3 q+ G. x! q& M( e0 r' @
topicStr = SysAllocString((WCHAR *) L"system");# [8 j; x. s: j; ]- P4 u6 ]& F8 b, E
VariantInit(&pokeVariant[2]); + L: f7 u+ \* r0 U+ T
pokeVariant[2].vt = VT_BSTR;" T/ Z+ z) X: \6 O7 O$ }- A8 R
pokeVariant[2].bstrVal = topicStr; 7 u% R$ e$ k5 i9 t3 n; }, K2 S/ T/ x8 X% k- r4 z) j8 E
// Set the DISPPARAMS structure that holds the variant. / B8 d$ Q' z5 @6 B- x0 e' V/ r$ B, ^ v0 o) \: f3 v
dp.rgvarg = pokeVariant;: J+ V0 W+ f( r4 }; _
dp.cArgs = 3; 3 L% I' }" o, D* w2 `% B: M. n. H dp.rgdispidNamedArgs = NULL;0 E8 E5 `% G! Q; {, y+ R5 a8 {
dp.cNamedArgs = 0;7 n4 U o5 _3 h$ v( a( R
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// Call IDispatch::Invoke() $ W% H4 p3 w- h) W. }6 |. R5 Z* V9 G/ B; t
hr = m_pDisp->Invoke( # G# I; |$ V0 h4 F: l pokeID,/ f( u, U$ b5 G) K2 l
IID_NULL," A/ u7 V/ {( L9 B
LOCALE_SYSTEM_DEFAULT,+ T/ O# B( M/ S5 Q, M" O
DISPATCH_METHOD,9 V2 }% F3 M" \4 \; D
&dp, 1 h1 a8 F! f }8 V" n" D NULL, 4 x# J3 P- i! Z6 y7 M' ] &ei,6 ?' y6 g3 Q. C1 [) o
&uiErr); 0 f6 U" v- n0 v& ?# p8 v3 y 1 v8 Y2 X+ b. k6 i SysFreeString(topicStr); - f' C0 \4 I/ {* h* l8 z/ f' D- G SysFreeString(itemStr);2 g2 V. A4 j4 T' q U
SysFreeString(valueStr); 6 ~& q' e* i$ R/ V8 Z% T 1 e& l) N+ D- i* o& F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??? % [$ L& i7 f9 K% M8 d6 a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???? . ]0 w* V" V7 c8 E5 N4 L- e4 c& ^* q% } h2 F+ _
& H# D9 ?3 {' J# W8 Y4 y' z2.这是request的程序8 I. Z4 `7 }3 r% N3 [0 n
// Request a value from Extend$ A& n; b; k z
// ' m4 A/ |! s% j7 J' g# x( y// Initialize the variant that will hold the BSTR. Set the variant's& k H" @ y# S" j$ W9 I
// type flag to indicate the fact that this variant holds a BSTR. Place the : i: r; S8 Q5 j8 Z1 c0 e% R; M// BSTR into the variant structure. % i2 L( [2 ^8 r6 S' v 2 q0 g1 ]6 G4 J; L* C requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 `( }, G* y4 l+ k8 L: q& S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + l' D0 L0 T+ n" X0 g VariantInit(&requestVariant[0]); ; {$ E/ h0 n/ q$ F requestVariant[0].vt = VT_BSTR;1 `$ ]9 R& Q4 H7 v0 Z
requestVariant[0].bstrVal = itemStr; 9 ^$ [$ G* x* o8 B8 u1 ]/ J( b7 b3 F) U% b+ h9 q
topicStr = SysAllocString((WCHAR *) L"system"); : H7 ]7 d- U- D. J& a VariantInit(&requestVariant[1]); 2 M" k! a6 ^9 R. g' V& u0 Y( l
requestVariant[1].vt = VT_BSTR;! a- Y- t( r% x# G$ A
requestVariant[1].bstrVal = topicStr; + U, Y, u' p6 B0 t) Q z2 p3 Q2 P x) ]) }
// Set the DISPPARAMS structure that holds the variant. 1 l% b0 }5 E- G2 L9 J& E: F: }6 O8 j0 S) R# L$ R1 B
dp2.rgvarg = requestVariant;) P" g3 ?2 [6 s5 L) j6 J1 `6 v9 b
dp2.cArgs = 2; & b2 c, x1 {" q; R1 a dp2.rgdispidNamedArgs = NULL;% J# i$ G; x! J. k9 J" V
dp2.cNamedArgs = 0;3 J2 \# i- D9 e+ m# A
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var.vt = VT_EMPTY;" {5 `: h1 a9 a$ s; P- p
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// Call IDispatch::Invoke()4 u, l/ _: b6 {! Y: C
, J- @3 \( q0 R, c7 z# ^7 j hr = m_pDisp->Invoke( 3 k$ f" N, y1 D8 T: X+ O requestID,& o- L0 j- ^* S r% O: S' q
IID_NULL,- B/ _: F' r& c9 \
LOCALE_SYSTEM_DEFAULT,5 ^' L( p, N4 `. ~. `
DISPATCH_METHOD, 5 m: h# i. V9 I6 h &dp2,% x9 n. O. n; F8 E$ ^* H- ~' o
&var,) {& p/ T$ g3 j2 g
&ei, 5 _5 d# S7 U/ x! o: I7 u4 v/ @ &uiErr); " i4 a3 E9 @# w! D" _+ ], J( B0 }. S/ b" R: P
SysFreeString(topicStr);0 k0 ]2 d v; x; i! f- O* b3 |7 S
SysFreeString(itemStr);! x/ h8 F' H/ `5 {9 M8 [
请问该程序是获得extend里面的哪个值? 0 G! y7 d2 Z$ M& ]( X' p( z# H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????