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：9 c3 v1 K( Q! |0 \% ~" g
Name = (WCHAR *) L"Poke";3 B9 Z7 r {/ W/ ^; C( n1 L2 F
+ H. t; i1 J" k k+ s hr = m_pDisp->GetIDsOfNames (- L! j5 Q% d7 n% e9 Z* ?( p; Z
IID_NULL, // reserved% X+ p3 ~4 }& R8 Y- O: i2 a
&Name, // Array of names to get IDs for8 \+ e, |2 ]9 O% R8 U
1, // # of names in the array ! D, s* i1 c& t8 E L" U LOCALE_SYSTEM_DEFAULT, // System locale! S! \7 V$ k7 i: L* b
&pokeID); // Array of IDs to fill on output# `+ _, I# H# l0 r. Q
0 l; M; |5 ~* A, ~" C5 D4 b5 j8 ^ if (hr) & g5 ~- Y' I* K Q9 E& c { ( x2 A7 g( E+ y$ U9 {: G3 R MessageBox ("Get Poke Unsuccessful");' J6 F6 Z+ g# O0 k/ t0 Y4 _$ ^/ ?
return;" W7 g" W. d e; r% U$ U
} * v h2 q4 @4 x$ `1 y) w ! I) A5 v# y, ~/ `" p/**************************传递数据给extend**************************************/ $ E2 j6 R# Z% G$ }) n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& E) Y$ `# p! H$ }( l8 E$ K) @% U
' L, X7 m- `& u* Q+ Z; c
valueStr = SysAllocString((WCHAR *) L"1232"); % O% G' @0 z, ?8 U7 w& Q VariantInit(&pokeVariant[0]); 6 [. S8 p! q2 {1 ]; z
pokeVariant[0].vt = VT_BSTR;# y2 N4 k7 B3 R. u4 Q! H7 H% @
pokeVariant[0].bstrVal = valueStr; 0 a1 D! ~4 G- y, M& S' y' x' A" ?6 ~/ P4 D9 ~- m
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! V) i0 s9 M0 g& {5 S VariantInit(&pokeVariant[1]); 7 l8 |, z4 W; |' Z- V
pokeVariant[1].vt = VT_BSTR; 7 c" c, n" B6 b# w! t' R* U pokeVariant[1].bstrVal = itemStr;5 L; u; }& i4 K
; W: U M7 h3 P. T
topicStr = SysAllocString((WCHAR *) L"system"); * u- p/ I0 s& T/ ?, ~" {8 _( P VariantInit(&pokeVariant[2]); ]8 O W4 |$ S) A' Y8 V
pokeVariant[2].vt = VT_BSTR; # H6 i( }7 O7 L; b+ g! ?+ Q) S9 J pokeVariant[2].bstrVal = topicStr;. l5 h3 o, L1 m& v0 S
& x, U `" L& o% `& j
// Set the DISPPARAMS structure that holds the variant.$ ?. }, r+ n4 h- d
4 J: v P$ S5 ^8 t( G0 B, X: ^7 g
dp.rgvarg = pokeVariant; 2 [, Y& Q& K+ q5 Y$ P% D! o dp.cArgs = 3; " @+ p2 X+ b0 Z6 Y; i3 T+ @9 M' F# j dp.rgdispidNamedArgs = NULL; * a) K1 f: t3 y. h% Q) |+ u dp.cNamedArgs = 0;' g" A# Z/ g; e+ n$ a
: M/ i2 Q( B4 n0 r
// Call IDispatch::Invoke()& B7 `8 ^- l! J5 J9 h
6 R0 S+ S' U+ O1 w* E& R; o hr = m_pDisp->Invoke(9 p( V$ p4 c7 w6 O/ a
pokeID, 2 G5 X" V: M' M/ a IID_NULL,6 a3 M& \* k" J# Z& ^9 r
LOCALE_SYSTEM_DEFAULT, B5 J3 b' P8 y4 m! A/ q1 E" w- q DISPATCH_METHOD, " B% N" P. M( S7 O0 `9 ~' L4 j &dp, 5 S5 M' X+ G" X' ~8 V7 y NULL,9 A- L+ m$ D+ m
&ei,; A* `7 m& V# W, S- o2 s1 d
&uiErr);+ ~: O6 U1 H+ J( R a1 |
: l& |9 t0 _: w: w" W& {& ` SysFreeString(topicStr); ( a* ~- ? H1 ]# [% ~2 \ SysFreeString(itemStr);) i( ^; K+ u. j" M5 g3 o* a, Z
SysFreeString(valueStr); 8 U+ ^9 i/ L' }6 O/ G( J% `2 T! R+ Q& L2 p9 a* g) n' b0 U4 n
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？？？ ( Y- B6 w: S" D. N1 q, c3 C) A9 q4 w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？？？？ 6 H" a2 F3 n7 T! z( w9 S+ l! @: F& q# k: \/ E
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2.这是request的程序' h! q5 E% D3 t' [
// Request a value from Extend - h! }' ?1 E; P; r// 4 E1 ~2 P1 V9 }+ I# o// Initialize the variant that will hold the BSTR. Set the variant's. _ a' f$ G$ z
// type flag to indicate the fact that this variant holds a BSTR. Place the' ~8 z# |. _9 e% B) \
// BSTR into the variant structure.( R* r6 v' T' s" ^) K* u
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 E/ E0 ~: m b/ f4 b # f+ ^% f% v |, T O9 \5 P5 b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ e1 {4 X7 I/ V6 Q. M
VariantInit(&requestVariant[0]); " e9 I, m/ [! \7 x. Z( ]( f
requestVariant[0].vt = VT_BSTR; 0 |) n5 b- y2 z6 ]: q7 D! } requestVariant[0].bstrVal = itemStr; & H9 e I& Q k- m: T# ?, R : K8 |. W! I- a7 H. ^& g topicStr = SysAllocString((WCHAR *) L"system"); ) E+ B7 Q2 G) O9 c) |6 @6 W VariantInit(&requestVariant[1]); , U) u4 F! Z& h. o, W- n
requestVariant[1].vt = VT_BSTR; , D! A' e L5 X' E% p& T, \/ c requestVariant[1].bstrVal = topicStr; 5 a" |9 ]' d& r7 f- r: e6 D1 ~& k$ o' X' w) D+ s
// Set the DISPPARAMS structure that holds the variant.5 [1 }" Q% r1 C' ^# C
" ?! `" N3 x* i9 B ~ b
dp2.rgvarg = requestVariant; & n/ p2 F3 A8 a' [4 r! h3 l7 J1 Z dp2.cArgs = 2; 0 k; Q- C5 R2 w# u dp2.rgdispidNamedArgs = NULL; ) E D$ G8 N) N- b0 f& [0 J dp2.cNamedArgs = 0;* P5 j9 b- `9 Q$ d
/ r, j2 \: M8 S$ y; [8 n var.vt = VT_EMPTY;: w2 v# a3 P. Q% o# F: d
% B6 q% K6 S0 q2 e
// Call IDispatch::Invoke()- r- G/ M2 T; p$ `) @! A
7 ~0 r2 e- W" V/ r: @ hr = m_pDisp->Invoke(# O7 o( |8 m. i' r5 U
requestID,: I6 ?5 a( `5 y, y, p
IID_NULL, 8 b$ v5 T* r/ t$ r* c/ i4 m LOCALE_SYSTEM_DEFAULT,' q2 a7 R2 J5 ?9 z: ^
DISPATCH_METHOD, * R3 t. x( T2 H( C* j, g% w8 w &dp2, 4 l# L( ^. L3 M4 v2 e5 @ &var,6 v4 |8 }: ~, e, ]: S
&ei, 2 N A* m0 T* |, L0 F4 o- _7 G &uiErr); & B3 x! I8 H# A6 E( R+ }) W; R D2 i0 `. f( Z4 |& D5 w v# O
SysFreeString(topicStr); + k' d/ E5 [; V' B/ Q3 x% L& I SysFreeString(itemStr); . q! B9 B( u* ~2 S; E0 o* k请问该程序是获得extend里面的哪个值？ - C/ p1 O# \+ W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？？？？
发表于 2008-11-25 19:37:03
