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:' ^1 R8 I! B" Q+ A% }) e
Name = (WCHAR *) L"Poke";# c. Y H, k3 U4 a" p" `
7 q, }7 r5 f! B; h hr = m_pDisp->GetIDsOfNames ( 8 H' U, v/ u [; A! ]- X% W4 S. k) x IID_NULL, // reserved8 W% `7 g4 [/ p) n+ m
&Name, // Array of names to get IDs for: V* h" V) L9 m6 t1 e5 `1 N
1, // # of names in the array9 z( @ P- f, T
LOCALE_SYSTEM_DEFAULT, // System locale, H: }' [! j2 }7 j
&pokeID); // Array of IDs to fill on output, {5 s4 G( g0 c; z$ {3 l
8 n3 }9 n/ [/ S+ X if (hr)) ~% h( y& r3 q# ^* H$ t
{ ; b% S: n* \3 C2 i5 t7 g2 m MessageBox ("Get Poke Unsuccessful");# x9 O4 o, I& X. `
return;+ V5 ~0 q2 X: `, n8 ^; x
}+ S$ u* m. l+ g8 Z1 u
: `( p' e- g6 u$ H5 g9 ?/**************************传递数据给extend**************************************/9 L& U @) K' {6 |7 L" z& M4 [" {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! }" t# q) ]' F [4 E
( z; ]6 u2 ~. v: T9 f valueStr = SysAllocString((WCHAR *) L"1232");5 T! {8 |* y" I$ W" x
VariantInit(&pokeVariant[0]); I# K' U% X6 S" E, | pokeVariant[0].vt = VT_BSTR;4 c- s' ]5 y4 k Y$ E
pokeVariant[0].bstrVal = valueStr;5 E1 w2 N* H1 [
; N9 h& W8 q4 d# k* ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 K7 j( C6 H/ W8 ? VariantInit(&pokeVariant[1]); 2 t* H( O/ e- l
pokeVariant[1].vt = VT_BSTR; - {. ?- Q& ?, ]9 E' O/ k pokeVariant[1].bstrVal = itemStr;% p' ^( @9 [2 `: s4 G( A
0 e5 n2 `2 n! G ]9 S
topicStr = SysAllocString((WCHAR *) L"system"); ! h/ s N4 p! G3 ~* ]3 |3 g& j3 H VariantInit(&pokeVariant[2]); & Z. _7 [! x+ J8 b3 {) u
pokeVariant[2].vt = VT_BSTR; $ H% N& Y2 S$ z* p' K$ K pokeVariant[2].bstrVal = topicStr;/ Q6 b0 u6 Z, U6 J! V! r
! o# v/ N' l9 Q; r// Set the DISPPARAMS structure that holds the variant. 1 O! x8 W! x% U* m* Q9 U, H $ N i* w# J9 X4 Y) ?6 N dp.rgvarg = pokeVariant;$ _; C0 f0 L) N. B5 `; k: ~: m
dp.cArgs = 3;; P" [( L4 B8 o+ B
dp.rgdispidNamedArgs = NULL; 6 \, f1 ^: \) I- D! [8 V" ^8 T dp.cNamedArgs = 0; : E( i9 y* ^0 s; n( R3 I9 y9 }: S6 U3 P" H0 o1 Z1 w X! H3 \
// Call IDispatch::Invoke(). \( V6 z3 R- B
$ ?! I1 S# U% O' s hr = m_pDisp->Invoke(6 a5 D5 {( d; o4 q) B9 x9 g
pokeID, ; ^" J7 L% e7 J6 E IID_NULL,4 B5 r1 O% b, u5 v$ s2 h n
LOCALE_SYSTEM_DEFAULT,- s. b2 W& @% @" U# [3 u
DISPATCH_METHOD,+ s4 ^! S0 D+ k' s. p6 }2 v
&dp, m, \* {3 x6 _; _) {# ^+ D
NULL, # G% [6 f5 `- y &ei, : V0 ^* h/ l. A( s) }, y: W$ l7 { &uiErr); 5 S. o% e3 a" j) a, o1 W8 g% C, x1 J" f5 p: u7 Q( R% `, @
SysFreeString(topicStr);* I! ^% H& v& d0 a: W
SysFreeString(itemStr);8 [2 u/ F1 w4 s2 J- U; I3 V* T
SysFreeString(valueStr); 2 w+ q& O( d) B1 q* O; z4 K5 D: y" W" ~3 E2 z& y" V
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???4 s, w& e; T8 c/ L
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???? % i, F6 W$ a+ h# ]: P* z6 q( C# a " t5 h. G+ L. n+ Q$ R) C * {( X, ~( {9 R: f& F2 X2.这是request的程序 * [1 y; x' K, E& Q: M! o& k, s4 M// Request a value from Extend$ }! v: q' S& N8 _1 N) z5 @4 a4 }
// & P: a& s" [7 ~6 w" B* q// Initialize the variant that will hold the BSTR. Set the variant's5 H' Q' P6 R3 k
// type flag to indicate the fact that this variant holds a BSTR. Place the r, A' E; H: Y& F// BSTR into the variant structure. 9 r4 k+ T9 k2 v: {& X8 ?; v0 F$ K
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* s; \. q+ |" j' K
% {. j) F8 k) G0 C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 Y4 f0 ^4 ]0 L$ P$ f& |, Z& _: M" ^
VariantInit(&requestVariant[0]); ) U) f& z j; h/ |- x8 K
requestVariant[0].vt = VT_BSTR; 8 X3 Z1 Y3 D! |4 | p requestVariant[0].bstrVal = itemStr;% r- @9 L0 P- O5 T
) a+ j& `0 p E* ]0 N' c8 ~. j topicStr = SysAllocString((WCHAR *) L"system"); - Y7 o! S, o; L0 ~! L VariantInit(&requestVariant[1]); $ j1 f. ?# l) p# s5 s" y/ V
requestVariant[1].vt = VT_BSTR; + |+ w% x Y4 B) {1 P6 M" _ requestVariant[1].bstrVal = topicStr; 8 X/ H0 d- Z% `7 I 5 `1 O& g, ]" O% g* Q' u! l// Set the DISPPARAMS structure that holds the variant.! }: T- k9 G1 l: R; x- g5 k5 z( i
; O+ ~. t4 K1 E K+ T D! |
dp2.rgvarg = requestVariant; ( u: E7 K. U. \# }+ _ dp2.cArgs = 2;* ?% P' H/ ]" O6 e2 ^2 T
dp2.rgdispidNamedArgs = NULL;& | D# J$ c( }6 D' }
dp2.cNamedArgs = 0;1 R9 d( C) ?/ a# P4 t
+ k. k2 q5 ^# D0 ]2 D# t+ z1 d- |) k* S var.vt = VT_EMPTY; ; {- ]2 |- A# |9 R" V y# l& |) x' O' r* F; f9 j3 e
// Call IDispatch::Invoke() ; t" R; Y, g+ \3 I+ ^4 e; K9 O7 _$ A, K6 L8 s+ N2 J
hr = m_pDisp->Invoke() X# b) a4 l6 _6 `+ a# O6 E- Z
requestID, ; S2 B& M+ w# _' E/ W$ {" ^ IID_NULL,: E3 r- W4 x# V) w3 \/ `9 N. t+ n3 ~4 t
LOCALE_SYSTEM_DEFAULT, # Z2 R3 T6 i T" } v: h8 U DISPATCH_METHOD,- R p$ X7 }* ^
&dp2,& b: x* r& A: e: O
&var, 3 J, E( W8 A) @& d: n% Z: x7 q- t &ei, Z3 W/ M( o) e9 e' N6 P$ ]/ `$ _
&uiErr); 5 L6 D7 Y n8 S 5 F5 [6 C2 K$ l$ M SysFreeString(topicStr);, Z! L& I3 e) u+ @9 d' i2 M
SysFreeString(itemStr);! _. W2 ^6 E+ K
请问该程序是获得extend里面的哪个值? - U/ J, X; _; p& z$ q$ {' B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????