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:& M, b, G G g) v8 m. T
Name = (WCHAR *) L"Poke";) c8 G& C6 a! s! \
; w9 y7 X8 W3 M: ^9 { hr = m_pDisp->GetIDsOfNames ( 3 O# g) @( Q P- j/ ^0 n3 v IID_NULL, // reserved" d5 l4 M- r @$ F7 t* T& M
&Name, // Array of names to get IDs for 6 `" a) F" [& Y) O 1, // # of names in the array + E4 O9 d$ x6 F' G2 a% j9 ? LOCALE_SYSTEM_DEFAULT, // System locale4 U( _2 j+ U6 o; s1 `) }: D" P
&pokeID); // Array of IDs to fill on output - m9 E, h" N" C% E! T % E2 @1 f i2 B' j2 `* A: C if (hr)0 ~ ^8 [+ R) p6 Q, y2 K! M- I
{- j) f7 U4 {1 {* s4 w
MessageBox ("Get Poke Unsuccessful");9 S6 c! Q# n+ V7 |, I' H) w8 f# z) N
return; ( ]9 M6 M& V7 D3 t }- t$ L. S, x- S( o1 ?4 Z+ u3 z' E
+ l; Y# k9 \: h
/**************************传递数据给extend**************************************/ ( h4 ]! |# v2 T4 j0 j F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 m0 |! p' `) m) l6 a- {# b
+ D s# T, E& T; I) w
valueStr = SysAllocString((WCHAR *) L"1232"); 1 c; k% ?$ V8 W. ` VariantInit(&pokeVariant[0]); ! i! S2 o' X2 u pokeVariant[0].vt = VT_BSTR;! I( A% D- g5 h0 {0 t3 [2 |# k
pokeVariant[0].bstrVal = valueStr; ( m2 r( _) c4 x; o$ D 2 I0 @4 d" U6 L: C5 S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 V; D7 ]' y$ t- E% ]
VariantInit(&pokeVariant[1]); 1 u3 w1 K* e) { r4 B: W pokeVariant[1].vt = VT_BSTR; ( A6 Y5 G6 u0 s F2 ` pokeVariant[1].bstrVal = itemStr; , X' }& ?7 q4 I8 V9 |& k4 J4 z ' K7 a" X- a# m8 n1 a/ _ topicStr = SysAllocString((WCHAR *) L"system");1 v- s2 D% x9 m. i# U" v
VariantInit(&pokeVariant[2]); 8 C: o0 s; t) l, |* g: l) d
pokeVariant[2].vt = VT_BSTR;. J/ v$ u# e8 F, C K4 ?
pokeVariant[2].bstrVal = topicStr; & h$ V9 m6 ?( }; v( z 9 V; a! o8 ~" A6 Z: f5 }// Set the DISPPARAMS structure that holds the variant. $ M# O) j+ z- e5 V( l! R+ ~& `: Y" u' G6 Q9 k+ [3 x6 M [
dp.rgvarg = pokeVariant;8 N7 K& }) ~% I$ B8 w# y
dp.cArgs = 3; 0 v6 }/ i6 u9 ]/ G dp.rgdispidNamedArgs = NULL;' b. T+ i! N& m$ J5 n6 m
dp.cNamedArgs = 0;! h+ p+ B2 w1 y% ~' j( g) u e" M
! Z3 O" [# h3 D/ u// Call IDispatch::Invoke() 2 r* g; x8 U! ?4 E- q5 H! u ! h: w W5 p4 s/ A/ ] hr = m_pDisp->Invoke(+ D; g& S6 J% G: Z0 \
pokeID, & z& m7 i0 I2 [ IID_NULL, " q) s9 p) ]" b5 x. ?2 g LOCALE_SYSTEM_DEFAULT, 0 ~6 l L, i0 _0 s* k! q DISPATCH_METHOD,9 L' L2 o5 }% @$ g3 p5 |
&dp,7 `& T) T# r9 Z7 p
NULL, 7 Y/ y# W) F* `; p7 }) d. L2 y &ei, 2 |, A+ N5 _0 x &uiErr); % t8 g, r1 [5 x; s# ~( c4 e' X6 ^ X7 F) Q4 T
SysFreeString(topicStr); / W+ }3 b* a( K SysFreeString(itemStr); : R; j5 ]/ ]# r3 A0 T; j4 e SysFreeString(valueStr);' O- K/ [9 V6 ~$ U' d3 Q
/ ^9 t% i W, Z* W" R
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 Z- W* Q* Y7 r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 b/ ^' ~) Z! J1 E7 f& _( l& f2 N: o9 u
. K$ K. M3 \* D
2.这是request的程序 5 N+ F: P3 W5 f9 x$ M5 x' D' R// Request a value from Extend / ?$ H! m+ b9 O5 X: ~/ d//1 `+ V A$ o+ h/ h* W& C
// Initialize the variant that will hold the BSTR. Set the variant's 3 i: V* V `5 r+ R3 g+ q; z4 x// type flag to indicate the fact that this variant holds a BSTR. Place the% `; n3 ?0 Z) A
// BSTR into the variant structure.$ b$ P \, s, B7 [" _
% d: @% n" L, z" l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - ^2 G( D. g8 M0 ~ * o8 {& Q. x. d) T3 C7 F7 S! I) Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 p# y+ t6 q' @# j- U6 h0 e VariantInit(&requestVariant[0]); & F3 Z% v/ A- p0 k* j requestVariant[0].vt = VT_BSTR; 8 d( q( g J; s8 n9 Y- z& J requestVariant[0].bstrVal = itemStr;7 l }6 `. q/ A
. r+ j# F& N( y. ?: I topicStr = SysAllocString((WCHAR *) L"system");% f7 @5 o$ v2 S @# X1 p
VariantInit(&requestVariant[1]); 0 `' G1 n. b0 ]' O" |0 t+ R" R" o, A7 @$ m requestVariant[1].vt = VT_BSTR; 6 G) m$ g/ u3 R; K$ R) G' y requestVariant[1].bstrVal = topicStr; ' p9 c/ s, q# |3 } M" p6 D( O7 ^& t" [) B' u
// Set the DISPPARAMS structure that holds the variant. - J( z. G+ _$ U6 b" z6 q+ [, Y' A/ a5 l' V
dp2.rgvarg = requestVariant;1 d. Q- ~1 d* d6 g
dp2.cArgs = 2;' C4 L( C; w% ?* g* K Y+ E
dp2.rgdispidNamedArgs = NULL; ) Y* |- i" _2 O1 F dp2.cNamedArgs = 0; 2 n. L$ }; m. ~# E' ~- _, h2 R4 w! z: m( y% q% j, d. _
var.vt = VT_EMPTY; 5 C& v; c4 q- q5 ~, H W: _) e+ ~7 c
// Call IDispatch::Invoke() z- W3 ~" ?, N) Q( Z
" Z+ l' e I7 E( k @+ o+ _$ a- k) O hr = m_pDisp->Invoke(0 G* \2 U+ L4 }! S. ^1 `: e6 {5 @
requestID, 4 N" |' M' \3 f9 Q+ a# c* y IID_NULL,% L4 E! \+ K1 f) Q: b U
LOCALE_SYSTEM_DEFAULT,+ U/ ~- s& ~2 _0 N
DISPATCH_METHOD,( h! [# ?: a1 ^
&dp2, $ a. V# i$ i( O$ j &var, # c% e9 b: T8 r! m" c$ Z3 K9 ~ &ei,6 c* J& b# d; \; s
&uiErr);+ ~0 W) v4 o, c" }
* I' F8 M$ o. @$ ^0 A. t4 E
SysFreeString(topicStr); % L4 D% q* ]1 l- h" u* k; s SysFreeString(itemStr);4 H7 i% V* Y5 t: P$ } \- Y
请问该程序是获得extend里面的哪个值? " k$ Q. s' h, f0 G. g$ Z1 b" x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????