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:5 U6 L: J; c* @& c( `( S
Name = (WCHAR *) L"Poke";- ]2 V r" e6 D
6 D( T' Y% H1 f# T5 d( A hr = m_pDisp->GetIDsOfNames ( " Y" p$ c- N1 K. [: Z IID_NULL, // reserved6 q+ f+ D: I% e5 x7 ~" {
&Name, // Array of names to get IDs for : U3 U% y- ]' Y; N9 u& E 1, // # of names in the array& u" b- k0 D! w! y: G( x9 h/ g
LOCALE_SYSTEM_DEFAULT, // System locale ; q; w2 z& W. ~2 _ &pokeID); // Array of IDs to fill on output 2 P9 z; U. O4 @0 i - \: q" M' r: D5 ` if (hr) 9 i W8 i h G- o) ]9 _/ T/ I {0 ?2 G g2 G- M/ S2 o7 P
MessageBox ("Get Poke Unsuccessful"); & i. o% f( q9 W" M return;1 q8 W" o5 E$ g% m! T0 R5 _9 h
} 6 C4 E' I& m" ?. u1 N$ R2 F4 L9 ?1 s- o/ z0 Z$ }
/**************************传递数据给extend**************************************/- ?! H. [; Q2 Z( k7 M3 D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 S' D+ A5 _$ r; q% o
* v' ?7 |. W- C! O! p( R valueStr = SysAllocString((WCHAR *) L"1232"); 3 Z/ I% S. X) {# d VariantInit(&pokeVariant[0]); 2 \+ Y1 w- J& X- [) M9 J pokeVariant[0].vt = VT_BSTR;( ]4 x) ]3 s6 Y0 b; _
pokeVariant[0].bstrVal = valueStr; Y) W( L( e+ ] 7 X C3 U7 D4 S3 Q9 { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' W! C, r+ j5 c% I' Z$ W8 v VariantInit(&pokeVariant[1]); # X( [+ z: [; ~' n pokeVariant[1].vt = VT_BSTR; # f/ f: ^; _( g7 @1 j pokeVariant[1].bstrVal = itemStr; ; r+ h! u; g6 S & o) ?: {9 ^- z' r topicStr = SysAllocString((WCHAR *) L"system"); + F+ j" @& j2 {+ o6 p+ n0 p VariantInit(&pokeVariant[2]); 0 H/ E7 e7 K& p Q1 S h9 \
pokeVariant[2].vt = VT_BSTR;: B) i3 [ f* F, V1 j6 a
pokeVariant[2].bstrVal = topicStr; 9 q- ^1 Y# @1 J7 S- ]/ g; L' `3 e3 t% [
// Set the DISPPARAMS structure that holds the variant." {7 ]( ?, I! [3 ^* x: K
4 ?3 p; O. B+ r- c) l0 Y* B
dp.rgvarg = pokeVariant;) A E* _9 ]% n. R$ X
dp.cArgs = 3;5 x7 ~; _! j7 s7 o- @
dp.rgdispidNamedArgs = NULL; 2 t$ C# S7 j. r: g; y$ J dp.cNamedArgs = 0;# h$ g8 N. {6 q( e
1 U) r+ r. R6 i$ }* f) c" P// Call IDispatch::Invoke(). i2 m& S/ y& S7 w( z9 k
( n$ `) s; T- w2 x hr = m_pDisp->Invoke(( g/ @2 V Z* O8 G
pokeID, 4 J& K7 K, I6 L3 `' {5 _8 b IID_NULL, " {) {) Q3 D, B5 F2 |0 v LOCALE_SYSTEM_DEFAULT, 0 q p2 @' O# o$ I- N DISPATCH_METHOD,6 _* {4 u+ l. b7 Y
&dp, - [& O; R* ]2 I$ L* z% T NULL,' L, p' C& H8 B
&ei, ( i/ B) k J+ V; w9 j &uiErr); V, h/ r) S4 q4 W* N) b$ ]
) ^2 p1 P. n4 h" P
SysFreeString(topicStr); 9 i9 C# [0 W# T1 a SysFreeString(itemStr);/ T' |2 q% N& K! f6 u& g
SysFreeString(valueStr); # ]0 f4 E9 c8 d 9 h `) |9 R) f# [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??? * O" d8 X1 o: 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???? / f X3 u" _" d- d: z ; Z* s k7 x9 y p4 h1 z6 U* `4 O: B6 C, E. q4 d3 V4 L) S
2.这是request的程序 8 r5 n2 {- t5 S2 y9 d q// Request a value from Extend / i$ G1 f4 D5 l, u//; o2 E; Q+ M; f- M/ S
// Initialize the variant that will hold the BSTR. Set the variant's& w0 m1 l% v& u, J
// type flag to indicate the fact that this variant holds a BSTR. Place the4 P- U! j0 H, n y
// BSTR into the variant structure. 3 O1 E" D2 z$ J9 O8 d# A7 b 3 C' ~, a, M/ e! N ^/ W; J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' r0 @6 q7 D; `. l b3 y+ n: O$ q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 C3 O% |" z- O VariantInit(&requestVariant[0]); 3 f& `0 T% ~" x' K/ N
requestVariant[0].vt = VT_BSTR;+ v) a. d" f- Z. r- l4 a" U
requestVariant[0].bstrVal = itemStr;; g$ Y0 F; @7 c7 t6 C+ i* C# ?/ O
6 x3 N4 m# [2 k' B
topicStr = SysAllocString((WCHAR *) L"system");1 K8 v' ~0 @$ x- q6 Q( E
VariantInit(&requestVariant[1]); ) M# t `/ \$ ]
requestVariant[1].vt = VT_BSTR; % _ V, X! x( q, m% k+ _ requestVariant[1].bstrVal = topicStr;1 c, ?; r) \8 \' X
# w7 q9 W: I5 k0 t
// Set the DISPPARAMS structure that holds the variant. : C7 O: Q) h& z T6 E4 \$ V , \9 g" Y. b/ {" S dp2.rgvarg = requestVariant; 7 G& S9 y, a% ^* ?. S5 a dp2.cArgs = 2;, s3 `3 s$ V; \/ }0 ^, m ^( D
dp2.rgdispidNamedArgs = NULL; ! o' o, A5 e# H; k( \6 \6 ^ dp2.cNamedArgs = 0; ' v `( T- U$ h . X9 l8 e y3 {6 m var.vt = VT_EMPTY;8 C( ^$ o) n6 U& {" P3 w5 N
8 \# ]/ y9 L G; i! T
// Call IDispatch::Invoke()2 ]- ~9 o& n6 J+ q* {# K
3 h7 W5 k$ ~' B k3 U! X- _ hr = m_pDisp->Invoke(0 l/ t/ _/ J! Z: O
requestID,2 v( `2 D: c+ G- H
IID_NULL, 5 w$ j# B+ p6 F4 R0 ~8 E7 R: { LOCALE_SYSTEM_DEFAULT, * f R! C( c W" w, p; d9 b l DISPATCH_METHOD,' w/ r# |- |: U, m4 x
&dp2,: W& o# J. ~/ x0 A7 C) X- {
&var,* V ^7 I. b+ E n8 P9 _9 H$ l
&ei, 9 t6 i# h& k! y) J0 R &uiErr);" A3 b1 ]6 c& b" u9 ^! k
6 e! q2 p$ b. n% C
SysFreeString(topicStr);% d. t6 ~8 _) `" m( e/ l+ X, [& _
SysFreeString(itemStr);! ^$ V% Z8 c' a3 k9 H( Z" t
请问该程序是获得extend里面的哪个值?6 l) Q# W2 F7 i
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????