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: , f# F& Y/ ~3 [+ jName = (WCHAR *) L"Poke";; c& d' {, K! g- H
& E t6 f- N5 D hr = m_pDisp->GetIDsOfNames ( 9 v! B, Y% c3 N2 @ IID_NULL, // reserved + t$ K1 }3 R2 c0 n &Name, // Array of names to get IDs for5 A. x4 M# h- ^" H' |
1, // # of names in the array5 q" U* h" i8 r) n( H7 l4 ?8 V }
LOCALE_SYSTEM_DEFAULT, // System locale3 t) c/ t- H: h$ g
&pokeID); // Array of IDs to fill on output$ G$ p6 o z) u4 o# x( h
9 A/ E L6 p9 b! u4 W
if (hr) " K" p, T: Q$ X7 L* f { 4 K/ t$ C! Z/ }+ Q b MessageBox ("Get Poke Unsuccessful"); & Z$ k& ~1 K& F- o return;" p& A. \- J0 H( y2 ^
} $ W2 [( j8 V6 {) E5 b; t+ ^9 c7 \/ k
/**************************传递数据给extend**************************************/5 T" \7 |4 y0 M) ]3 I
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 n% x" A6 M+ h f* @) ~ # p8 \7 v6 S$ A3 i) K
valueStr = SysAllocString((WCHAR *) L"1232"); K) P; o( F% E: O% n5 m
VariantInit(&pokeVariant[0]); 2 D0 }& Y) z0 B( X3 S pokeVariant[0].vt = VT_BSTR; 7 V+ ?# {4 N4 s- d+ r pokeVariant[0].bstrVal = valueStr; / @& a0 `6 l8 O( m: s+ y" T ) s1 g9 P# o5 L7 R( m8 ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' V. W" I. \9 Z8 E z8 t; p
VariantInit(&pokeVariant[1]); - X1 }( D4 L+ V+ T
pokeVariant[1].vt = VT_BSTR;# D- r/ G# b, v& H/ s
pokeVariant[1].bstrVal = itemStr;% V {4 X% b& H, Y9 H) o
5 R$ l6 K7 i, {
topicStr = SysAllocString((WCHAR *) L"system");3 V1 F- k1 I- q
VariantInit(&pokeVariant[2]); . {9 V1 c. f7 h" t' L' D4 @ pokeVariant[2].vt = VT_BSTR; 5 q8 j9 w) N# d pokeVariant[2].bstrVal = topicStr;6 _9 M1 z+ ?" R9 g& Y
1 h$ L. Q: g! S// Set the DISPPARAMS structure that holds the variant. 4 O) Y5 ?* V. e; a5 X2 N( F/ r! k* q9 c6 {2 `. \/ j6 Z: d
dp.rgvarg = pokeVariant; 9 ~: D. G+ z) W8 k/ w$ R dp.cArgs = 3; ) F& S: X& B' }% u; E% D3 c# i dp.rgdispidNamedArgs = NULL;1 K4 {4 J+ s: N" L8 M, R6 Q/ n
dp.cNamedArgs = 0; - r& K+ r6 J6 w- c% ^/ ?5 @ 2 q( b& h- Z# p" O2 q// Call IDispatch::Invoke() " Q$ l, i6 {6 k3 Q( H8 n ^( h' }% o* R. r9 k7 N hr = m_pDisp->Invoke(' c+ E3 _! N% | `$ W' L( v
pokeID, ) t: ^6 o+ k/ Y, m: H IID_NULL, " O5 C. I6 Z! S1 j2 v LOCALE_SYSTEM_DEFAULT, ; a- [8 S2 |2 B' \1 h8 ] DISPATCH_METHOD, e% {% Y! t: O &dp,5 r2 \# I4 v4 C& ^4 X% [
NULL, . G3 P6 \, s" k% g- Y &ei,3 b7 q+ k3 `/ f" U) J2 H
&uiErr); - x6 i1 ^' P5 B0 [6 o- W7 B ! V% I8 A& Z- t, c& F% y1 w. W SysFreeString(topicStr);1 b3 Y0 U) M* p. D e7 ]& d
SysFreeString(itemStr);" \( F+ E' A6 i4 J2 e) }8 d
SysFreeString(valueStr);0 }" a4 Q2 s5 X' I
( Q+ z1 ~7 O9 C/ p( 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??? 0 ^$ P5 m% y/ @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???? , k' u/ k7 J W) Q. f+ Y# a' R* ]. ~
: d- P9 X+ ]. C! @7 M2.这是request的程序 , |. P' e2 i# A0 q0 u4 L, R// Request a value from Extend6 Y* U" g+ K, J2 P1 [" n' r- }. t
// c' S1 ^9 K1 T e* s3 S+ L4 F) G// Initialize the variant that will hold the BSTR. Set the variant's 2 Q* `$ w# b# \! x; @// type flag to indicate the fact that this variant holds a BSTR. Place the 9 s. F/ h5 q' L6 F3 K' D// BSTR into the variant structure.6 ?3 l2 ?% `3 m) W- V0 [; J
7 T" m5 y, H {( i/ T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 p' M# L2 Z$ ]( Q' P' M' U0 q% e 4 F$ Z6 V2 _& |* E$ y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & V m$ Z- a8 z% } VariantInit(&requestVariant[0]); ' `6 A7 q- ~% X6 s, Q0 P' Z
requestVariant[0].vt = VT_BSTR;3 |5 G) K" `8 k% T* H- Z8 I
requestVariant[0].bstrVal = itemStr; % o$ y; v* H) O# g8 k& k5 n6 @, s- \+ }
topicStr = SysAllocString((WCHAR *) L"system"); ' ]$ K) w3 ^; _: _$ u0 ]% I7 p. | VariantInit(&requestVariant[1]); - N" A5 B% r0 N. q& q
requestVariant[1].vt = VT_BSTR;/ Z7 t; d% u% E6 ^. v- C8 |0 X
requestVariant[1].bstrVal = topicStr;: {* ^+ Y5 I8 s9 ?/ _6 Q- e; ^* d/ k" e
& q5 e) i7 r' p
// Set the DISPPARAMS structure that holds the variant.9 D) `" c2 }6 h( p1 |: _! Y8 W
6 w" a v) h* w4 g) I4 S ^ dp2.rgvarg = requestVariant; `. r# K% g' [: P# r# } dp2.cArgs = 2;7 F, o# L2 n: g) x Z6 y) v- o
dp2.rgdispidNamedArgs = NULL; ! q+ o# _9 D9 X. A6 l6 E dp2.cNamedArgs = 0;4 N/ D3 I5 _( R0 b) l2 N4 i( I% \
3 g n$ o0 X7 z4 I8 z; M0 b* [ var.vt = VT_EMPTY;/ `! R7 D7 k$ k0 |. a! }+ R
: j7 u2 A) @! B6 K) e# k' n- ~* S
// Call IDispatch::Invoke()! b* G% ~# X1 U. I+ v! B* f
) Q' H/ P* h, s5 u8 H9 U, @
hr = m_pDisp->Invoke(, s7 f4 _$ q) }' W( S
requestID, # L4 l/ o$ N4 l9 @5 A0 p IID_NULL, - u6 Z" V4 v9 n LOCALE_SYSTEM_DEFAULT, 8 u" u2 G+ a1 j0 y1 g) A DISPATCH_METHOD,( x/ K3 M5 U7 W! O m
&dp2,3 n9 G1 Q) c( D1 M
&var, , i: j; h- H$ f( K D2 u" y# ^7 Z &ei, 4 e2 K9 i1 _1 \& k+ H8 d; t &uiErr); , C7 Z% P' p/ t ]& n! \6 j y+ c# A3 l, U! Q
SysFreeString(topicStr);5 C" `# s3 {" W9 Y+ f
SysFreeString(itemStr);+ Z- R3 r& n- Y
请问该程序是获得extend里面的哪个值? 9 @# ~ _( P0 B/ q* |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????