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:+ p4 y M4 t5 u$ V0 e
Name = (WCHAR *) L"Poke";) H3 P3 G. o2 |( X9 w
, _) u! d7 j; ^3 o* F" { hr = m_pDisp->GetIDsOfNames ( ( u% }9 _. \0 x/ v8 S IID_NULL, // reserved" `- X) X a9 q/ f/ |" I% c
&Name, // Array of names to get IDs for 1 a( n8 i' I' R6 Q5 Z0 B4 U 1, // # of names in the array 1 s) c2 s" n/ Q/ X LOCALE_SYSTEM_DEFAULT, // System locale : E+ j9 {; g k &pokeID); // Array of IDs to fill on output+ B$ h( Z# t8 G* g
/ }7 ^5 g! e1 c) x
if (hr) % w. Q$ `3 D* {, t7 ~ { & ` w- U) H9 W$ O0 I MessageBox ("Get Poke Unsuccessful");6 `& ^4 h* E5 ]3 i9 P, n+ C$ k2 B
return; 8 O a" D1 t7 Y( b M% k } * ]' C7 W4 e& K% y- y+ q 0 [+ v+ E! ^; f. x7 w: t# T/**************************传递数据给extend**************************************/ , a4 E8 F: h. ~$ F. y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; |: ?0 ?. d3 D* O$ U0 a 2 W/ O6 b1 U, I4 _6 j- v
valueStr = SysAllocString((WCHAR *) L"1232"); + U$ M1 G/ s$ }9 |' B1 ?7 M5 `. m VariantInit(&pokeVariant[0]); U/ ]* A, c" z6 O/ K5 q pokeVariant[0].vt = VT_BSTR;2 n$ _! t! N! l. Q% S6 T
pokeVariant[0].bstrVal = valueStr;, V& p9 J& Y) |. [+ d( G
! j# _$ C, {; O) i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 P" g% X: p9 `' p: O
VariantInit(&pokeVariant[1]); % Y y5 v( p5 r; z
pokeVariant[1].vt = VT_BSTR; : F$ @; y6 O0 Y$ ?! ^ pokeVariant[1].bstrVal = itemStr; , j1 }) x) f" Q- Y" d! S P 9 \) N! I& c! x4 g$ v: t topicStr = SysAllocString((WCHAR *) L"system");; `0 B: n5 n, D( Y5 f9 B
VariantInit(&pokeVariant[2]); & [3 ~- \* j4 ^
pokeVariant[2].vt = VT_BSTR; ! p+ a! D& o* Q pokeVariant[2].bstrVal = topicStr;* ^ E% y9 U' U5 B a4 E6 w
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// Set the DISPPARAMS structure that holds the variant. z5 E7 Z: W6 @8 ` s, B( Z
$ F# z" z6 @9 c( x8 f% ^ g dp.rgvarg = pokeVariant;: v8 [0 K1 {% Q' s
dp.cArgs = 3;1 `+ Z8 [8 e: f9 D5 e' I
dp.rgdispidNamedArgs = NULL;; _( l/ B( T8 U- M3 |6 T
dp.cNamedArgs = 0;: y6 G; C2 `) G$ l9 H6 m
; K# e0 G5 B j/ G7 U! w0 D
// Call IDispatch::Invoke(); E0 w! s5 p: M
+ X% S" ` L( w3 u/ ^2 E- r hr = m_pDisp->Invoke(6 g, g' T+ \) j; _
pokeID, ! f9 c4 s* J! k IID_NULL, ) r( G. B' |+ n- Z( L: F LOCALE_SYSTEM_DEFAULT, 9 M/ D0 j: c, d DISPATCH_METHOD, 1 O, C) u: @+ `: h9 N5 i% T. ] &dp,, i8 |* O, X! R& e: f* c
NULL, 2 s, q+ }) ?2 d' ^/ ? &ei, - _9 j4 N% d9 ]: w6 K. X1 c j &uiErr);6 ^1 U5 o! K; b1 A4 d
6 I+ j, L+ N! p3 s/ L
SysFreeString(topicStr); 9 w( |6 [) y" T1 T1 p SysFreeString(itemStr); - _* |9 N9 G! z( I SysFreeString(valueStr); C3 \6 u8 b3 e4 m 3 ~0 s9 j# p- M0 ]* Y7 b0 e6 B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???/ v. d4 t$ ~0 ^8 s1 r4 P
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????; \7 r+ o9 @9 A: E* M3 N1 A
5 `# t' m; o/ n9 l @8 C2 N 6 q* s- l* f& y+ T, t2.这是request的程序 2 y. C) J. W$ r5 |3 Z( E* l" A) J. b// Request a value from Extend - ~) Z" G" o/ m' B// 8 U% r( J4 Y. Q9 G// Initialize the variant that will hold the BSTR. Set the variant's. v" F( J y/ d# R
// type flag to indicate the fact that this variant holds a BSTR. Place the9 H- O* J% ?2 z. f' J$ t
// BSTR into the variant structure.3 v9 m% k6 p! y) j. M( [ |) o$ W
& V. p- a: ~" b$ z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 \- \2 W; f. o# s ]5 Z& H1 ]* a , ~) O" N8 ^5 v7 n, {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 W A7 c2 V; L" R8 U( d. z VariantInit(&requestVariant[0]); 6 X' g& l2 f- y0 l requestVariant[0].vt = VT_BSTR; 4 I( t) C2 {: A# a requestVariant[0].bstrVal = itemStr; + N1 ^& h; d. D! ]) t / L% n [ L1 C3 L D1 S% R topicStr = SysAllocString((WCHAR *) L"system"); , b( d. Z% V" h4 F VariantInit(&requestVariant[1]); 8 z' N, M7 h7 I7 T requestVariant[1].vt = VT_BSTR;; f1 a9 ?1 e: J, B* F
requestVariant[1].bstrVal = topicStr;/ N! c+ W+ M# ^+ W1 b
6 ]! Y; d, b& \// Set the DISPPARAMS structure that holds the variant. , `( B! j* d: A. j) O% p# ~; I( |" Q, N+ S1 n4 a8 p1 I/ `5 L
dp2.rgvarg = requestVariant;7 p2 ^! c6 v( {! q; R" ~' d
dp2.cArgs = 2; . x; K" A+ ?; n8 u+ f* k5 i' T dp2.rgdispidNamedArgs = NULL; # I, ~( L* A* ]3 H" D, D. r9 ~$ } dp2.cNamedArgs = 0; , S8 o( t4 q$ I' ] 8 u# }# I3 o, r k* D var.vt = VT_EMPTY; : k3 Z& P9 W/ [ ?* Q" R7 K/ j U9 n% n
// Call IDispatch::Invoke(); u& }- L! o6 s2 `1 l
6 X" }9 f+ S; v" t5 W* C0 a+ o hr = m_pDisp->Invoke( z& y4 v- f9 C requestID,3 R! x' s; F9 L" A& K6 t. M* N
IID_NULL,6 C! N8 W) d K8 U' {
LOCALE_SYSTEM_DEFAULT, * I J; n( w9 a+ A* R6 Q6 ^ DISPATCH_METHOD,! X$ w T/ h3 V; Y ~% m8 \4 ]
&dp2, . r4 Y; H% y1 ^+ z, F( R$ ~6 \- u &var, / U$ Q4 q1 I: X( B% d &ei,7 e- C0 t6 E p) [- K
&uiErr);- v+ f( k* U5 `* M2 z
3 T: t f- K: ?4 k SysFreeString(topicStr); 5 I6 y# ]1 ] L! Y3 i$ K) Z- y SysFreeString(itemStr);. L3 W) J9 c6 }
请问该程序是获得extend里面的哪个值? $ ^: F- d2 \& W. l6 c- ?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????