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: ; o( {- I; F5 RName = (WCHAR *) L"Poke";4 s7 b S* d2 W( P" K+ l
9 u4 b1 n9 Y. e" y# H' C0 _ hr = m_pDisp->GetIDsOfNames (8 A0 k/ n! r4 g! [$ ~" C/ R1 U
IID_NULL, // reserved 1 G" s# P9 b. k( h: D% l &Name, // Array of names to get IDs for % h, F7 M% x( ^$ x* f+ r; e! v 1, // # of names in the array & k$ @ C$ o2 M/ K1 S5 [$ k LOCALE_SYSTEM_DEFAULT, // System locale - d; `, \, U" H; C &pokeID); // Array of IDs to fill on output 6 c( K3 a0 p% h1 h" z ; Z/ X% [2 p' |( _4 t( W if (hr) 0 @9 r' q! G+ B, h' k$ W% f* J5 \ { * Q% O9 ]. A7 G MessageBox ("Get Poke Unsuccessful");) z* G. Q' ]" u! D4 u; n4 h# Y2 F
return; 9 g- B( a& d, l7 Y+ S }$ {' W. d" p% f& u. ^4 Y+ O
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/**************************传递数据给extend**************************************/ ! s6 d5 y: M% _4 W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* Z* G) z9 o, o9 S6 z' K
( R7 U: X" W$ S, S$ g- w8 K valueStr = SysAllocString((WCHAR *) L"1232");+ W/ X0 h2 y }" p; E
VariantInit(&pokeVariant[0]); " K! l7 n5 o4 d4 |5 H
pokeVariant[0].vt = VT_BSTR; . V) _6 h8 q n7 X pokeVariant[0].bstrVal = valueStr;& Y4 s7 N% S2 J9 a$ @5 n
, V; U8 d& S A# I$ { u1 L$ A( s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & e8 S+ f& X7 D. [. j& O8 N VariantInit(&pokeVariant[1]); 2 h! f# D% d( P9 s, E pokeVariant[1].vt = VT_BSTR;$ T/ E s" a Y; {
pokeVariant[1].bstrVal = itemStr; 6 P0 s. D; u4 B0 T+ b' U* N4 j3 y 2 ^1 o# s% a- \0 N7 X! C topicStr = SysAllocString((WCHAR *) L"system"); % l0 m t- p) p VariantInit(&pokeVariant[2]); 4 w/ Q2 x5 t& w" V$ U! D
pokeVariant[2].vt = VT_BSTR;7 |: c+ y0 F" O& d
pokeVariant[2].bstrVal = topicStr; - s3 p/ v9 J3 C: P. j2 d % |3 J% r+ r9 i0 b! M6 }// Set the DISPPARAMS structure that holds the variant. # V$ O2 j! m" |/ F $ `2 A! y! u" m S: @- @" I/ L0 [& B2 s dp.rgvarg = pokeVariant;, y V- t5 P B" e- f. E$ b4 L
dp.cArgs = 3; : `& I. B# _3 T dp.rgdispidNamedArgs = NULL; # `/ u7 ^/ E! |' u6 ^) ^ dp.cNamedArgs = 0; % j. m' N( h# L4 P r 5 k* |6 T w# O. w6 W/ s// Call IDispatch::Invoke()8 H5 S* m4 M% ^4 D6 d
! _" Y [& K* r hr = m_pDisp->Invoke( ' J! T( G/ E. }) g6 ~7 f1 k pokeID, / H7 C2 K# d8 }. G% \$ T2 u! s; Y IID_NULL, ( e# T+ k6 k v2 P7 p LOCALE_SYSTEM_DEFAULT,: W7 g% D+ G: G; x8 k: `! Q
DISPATCH_METHOD, * A3 z! d' P! ?* n- z1 P &dp," f3 G% H. ~5 ?$ x0 K
NULL, 0 @& e/ B" `& {4 j) E &ei, ( a5 p: K7 M' C) q; H &uiErr); 6 ~1 X# h& W+ @. S. d( j# A$ f) y* s+ ~+ q7 {) R
SysFreeString(topicStr); 4 O1 e G+ k8 W4 B5 V1 Q$ F SysFreeString(itemStr);2 v& U9 w& ]! W* A% n( [
SysFreeString(valueStr);; ~" x6 X" @9 Y4 J7 y
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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???# u. D. K4 H7 K# y) {; A4 c
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????/ D4 o6 y5 |9 h; f3 A' H# z
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% h9 k* V: i: l2 `6 R8 X5 t! |2.这是request的程序 0 @1 S8 m5 D5 X9 _2 I// Request a value from Extend 7 ~1 ?8 N4 w8 _$ v. ]/ z( q//9 N6 r% ~6 e# j% m
// Initialize the variant that will hold the BSTR. Set the variant's: O) n5 Q" U2 Z; g+ ]# e
// type flag to indicate the fact that this variant holds a BSTR. Place the. O" J: v0 ~; t. l @' z, z" A
// BSTR into the variant structure.8 D `- S2 C/ B: u R
, w- E* V2 E" ~1 K: ], E, n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( i+ e$ W4 x7 k+ B & M% h2 J9 s+ X" j, H$ T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 h# { o Y# i" Q9 j @' g VariantInit(&requestVariant[0]); 9 ^* v: t/ v o; e3 X! U
requestVariant[0].vt = VT_BSTR;$ {! G4 L9 E2 _% i" R A$ Y: O
requestVariant[0].bstrVal = itemStr; . X0 l8 R3 W) A8 i, E 0 j( Q+ V4 J4 X( l- M4 ?* h topicStr = SysAllocString((WCHAR *) L"system"); * S$ t0 F1 d+ i3 R VariantInit(&requestVariant[1]); , j/ g! Y9 \4 M" z2 m: }3 M7 \ requestVariant[1].vt = VT_BSTR; G4 F/ ~# h- _+ T7 v requestVariant[1].bstrVal = topicStr; 2 k0 B0 [, P- ?5 O, I' Z t+ C( q- _. W n1 w
// Set the DISPPARAMS structure that holds the variant.* W; e, H/ E. V4 d1 r+ `5 F) D
; _! B& G+ f/ M' r" ?8 {0 i" O* r dp2.rgvarg = requestVariant; + t }1 D0 w) L$ w0 q0 o dp2.cArgs = 2; , B$ R G1 i6 s" \4 G1 w dp2.rgdispidNamedArgs = NULL; * j. f: r+ V0 g1 r% I. G. H; ` dp2.cNamedArgs = 0; 4 q3 e9 e7 B0 q1 M+ [1 M& {/ a# Y v8 f" X' F# r
var.vt = VT_EMPTY;" d4 x; p8 T; K4 @; J! P, G
$ V8 n4 q3 ]" h k. Y( H// Call IDispatch::Invoke()' I2 [% a# |- u9 D+ F$ c& r
" g4 w9 f* }5 k! u( f hr = m_pDisp->Invoke( 9 c" F, d# F+ x2 h$ N+ _4 F0 b requestID, - D5 B0 B; z* X$ Z' u& b8 V) o IID_NULL,( }7 l0 L Y% t
LOCALE_SYSTEM_DEFAULT, : k, H, c; t. \$ N3 y3 w% U5 D DISPATCH_METHOD, 1 _& ^6 j8 B2 { |, W0 C &dp2, ( D% j6 \* _2 A& P &var,; W& u0 _ d$ Y* G
&ei, . f. l1 a, q3 M: Z3 l &uiErr); & c' R, D0 H1 e. @4 j: {* k' w4 `9 S2 H3 \9 i
SysFreeString(topicStr); * n) G' O( f- @ SysFreeString(itemStr);2 y+ f* R- [! C5 f" |
请问该程序是获得extend里面的哪个值?3 J% P- k3 ]' S) g- E, D
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????