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: 0 w* Z, O* B- E6 JName = (WCHAR *) L"Poke";, ^6 y2 ^8 U1 S2 |6 ]8 U* c' |/ {
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hr = m_pDisp->GetIDsOfNames ( & a8 ?. K8 ~- y" P. n IID_NULL, // reserved7 f% s) @6 h( v: q$ C
&Name, // Array of names to get IDs for8 a% W3 A# ?5 I+ O. [6 T n
1, // # of names in the array0 w. q6 q: N2 n0 c, T
LOCALE_SYSTEM_DEFAULT, // System locale/ a+ N* G+ h* W4 s6 j2 X
&pokeID); // Array of IDs to fill on output * _& ] B& w: a4 T# i0 M- t + o# _5 e) d) v, K7 p7 D
if (hr)% m; s ^, f% z, `0 i7 B+ f
{ 1 H, N; K; r1 s) ]4 o* R9 g MessageBox ("Get Poke Unsuccessful"); ! z& U9 X5 a4 p8 G& E5 N return; - r) N/ {0 Q3 H+ n } % D" H- ]& R7 s5 }& X6 r; h; D8 J. ?
/**************************传递数据给extend**************************************/ 6 q" [" Y0 y( [8 \, P" J pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 R6 K' Z0 W" C% \5 L 3 Y( R% [: i( {! [" g0 w- z
valueStr = SysAllocString((WCHAR *) L"1232");, U' r) u* y) G7 d
VariantInit(&pokeVariant[0]); 7 ^" T" @) e& o3 S3 y1 o# u' A- L0 v pokeVariant[0].vt = VT_BSTR; + c3 M9 Q" r( Z4 D pokeVariant[0].bstrVal = valueStr;6 B6 W* s) q4 L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * c R7 ]0 q ~% N. F& G6 X# a VariantInit(&pokeVariant[1]); " z" ~* W( F$ p5 R
pokeVariant[1].vt = VT_BSTR; 8 k6 T+ j6 @* u' Y pokeVariant[1].bstrVal = itemStr; 7 X0 Z/ u7 C x) v+ ^/ T9 x6 O/ a( ?: S, m: J$ W- i: I( @9 ]
topicStr = SysAllocString((WCHAR *) L"system");2 q+ _- S2 b' I/ P: V
VariantInit(&pokeVariant[2]); . Z; F8 f i4 B# [+ x; d+ v) q8 r* ~
pokeVariant[2].vt = VT_BSTR; - j2 o& ^- Y( t$ A pokeVariant[2].bstrVal = topicStr; ! ]& W* j4 C; [# C! B7 x: d. u1 h O& K7 C: N2 u
// Set the DISPPARAMS structure that holds the variant.$ Q3 S$ f% v$ O; O0 o% i0 ]
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dp.rgvarg = pokeVariant;3 _% x. u1 E6 T" r7 _6 @3 K
dp.cArgs = 3; 1 Z* X+ M: x, z+ A* A4 y dp.rgdispidNamedArgs = NULL; & k5 M3 e' U3 g6 w1 `/ }& e: r- }- P dp.cNamedArgs = 0; C, F+ c7 s4 |) y' O
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// Call IDispatch::Invoke()" e4 i# {7 D; E, h1 z
; d; y" x6 l5 N: E- m6 k hr = m_pDisp->Invoke( 4 C7 f! m p2 ]- \7 G pokeID,+ n& s: {4 Y: u }) |' u( Y5 Y- M, O: d
IID_NULL,$ ?# b! L1 d+ J6 {: Q
LOCALE_SYSTEM_DEFAULT, ( z% ~! r/ \1 N4 a3 o% _; t DISPATCH_METHOD, 4 i: F; h4 N3 h7 _4 g) T* Q8 l &dp,. S: ^7 w& `+ ?3 v ^9 C5 `
NULL," F- O% j3 ^( ~
&ei, 0 ~/ K1 {+ r7 n+ x+ S# K3 P- c8 ^ &uiErr);' A+ Q! u/ X6 o4 D
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SysFreeString(topicStr);8 }1 j. o/ Z& B4 S( V
SysFreeString(itemStr);6 b) ~0 ^9 n# I6 i
SysFreeString(valueStr); + t+ `2 i0 B; f! h6 z' S7 w & J5 m2 d: y( S& u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??? 8 b, e8 L3 ~4 k$ I: k3 z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????. N {8 {3 F2 N9 W$ W8 D
8 ]% U, C4 z7 ?! Z / U! E" J1 q" e* E2.这是request的程序 1 J! Z P) }$ ]2 n$ z2 f// Request a value from Extend - W! ~+ P' o8 O1 J4 a' _//, {# M7 Z$ K8 V: l; L8 l5 w8 {* s
// Initialize the variant that will hold the BSTR. Set the variant's 0 k1 |$ C- E; |/ H, k( A9 p// type flag to indicate the fact that this variant holds a BSTR. Place the4 y3 ]) ]- _% H* M. t, r
// BSTR into the variant structure. . O- X8 S# B* f; H$ F- t; ^4 Z/ C; N n8 R
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 S. G7 |7 p9 E; R/ F 1 d. g9 W9 c9 f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: l9 E9 d1 T& e! F7 t/ s
VariantInit(&requestVariant[0]); 1 t/ W X$ L, l! t2 U# h
requestVariant[0].vt = VT_BSTR; , J, [, r' p0 j+ k/ N/ d* I) ~5 v+ g requestVariant[0].bstrVal = itemStr;. O) g( L; f! E. e
# Y# D7 o% j: V- v3 R0 r0 r topicStr = SysAllocString((WCHAR *) L"system");8 \" T- G) A, A# P F$ y
VariantInit(&requestVariant[1]); / q3 p0 |; a( p2 O( E, I requestVariant[1].vt = VT_BSTR;5 e: p$ V. k0 z3 l! X' n I
requestVariant[1].bstrVal = topicStr; % V8 V+ u+ [) h% Y0 Q+ Q7 B7 _+ J. N+ l3 R2 z9 A
// Set the DISPPARAMS structure that holds the variant. 1 F. O/ [: {% C; ~$ W$ b1 E( [: k! `8 y9 L. f5 P; s; O$ l
dp2.rgvarg = requestVariant;2 |# u* t/ ^5 n& j6 Q
dp2.cArgs = 2;9 R5 w- X- `9 q3 o
dp2.rgdispidNamedArgs = NULL;6 A: ~0 y( `) F( P
dp2.cNamedArgs = 0; ; W- k5 j! M2 A, [6 p* ?) s, r) b
var.vt = VT_EMPTY;) I9 d% M" O7 O4 O- A# W
! \0 d8 o( d* S Q3 m// Call IDispatch::Invoke() ; A& c4 Q, p/ B" W" w % _8 I) f# x/ v0 _ hr = m_pDisp->Invoke(, r( \2 q4 ^% E9 s$ N
requestID,2 U2 R% G2 b' E# ?9 N R9 @
IID_NULL, . z" x6 h# D% N: Z6 j8 d LOCALE_SYSTEM_DEFAULT,. s* S! N2 G: V: f) _# t
DISPATCH_METHOD,/ J1 w4 g7 b D4 R
&dp2,' K8 J) V& [& H( P% z: i# E
&var, + R; Y6 Z6 [& X# b1 J$ i &ei,) e- \' D! U- E2 X
&uiErr); & Z* n- t) \/ J0 y6 p( C P 0 w& z: j# s5 v6 _9 H/ U SysFreeString(topicStr); 9 f$ C4 M" N& Q/ g. C% P! U, ] SysFreeString(itemStr);) F6 {' q% Y; E8 I5 k( t( Z% G
请问该程序是获得extend里面的哪个值?+ s q4 [ a5 w$ W* r
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????