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:( ?4 ?3 r6 R5 r: B/ m0 }7 C S- l7 E
Name = (WCHAR *) L"Poke";! t) q" E1 v2 s! L) w$ n3 X
. l4 X* v& G; Q) v8 A+ G hr = m_pDisp->GetIDsOfNames ( + y3 P$ G1 p& L2 J& {. p3 y IID_NULL, // reserved9 @5 [% ~6 _1 N9 S- d v
&Name, // Array of names to get IDs for " P& a5 I- I2 @$ F/ F3 r: Y- [3 i 1, // # of names in the array9 I b6 k0 Q6 b8 X+ l4 L
LOCALE_SYSTEM_DEFAULT, // System locale : D8 N7 C7 j! W! c1 ?5 f: t &pokeID); // Array of IDs to fill on output / [/ N1 n9 Y' ^* E' B 6 J1 Y N7 c6 E T4 R
if (hr)& O- L: R! }' c& M, f2 @; Y& ^
{. p4 P" v( d/ ]) k
MessageBox ("Get Poke Unsuccessful"); 6 B$ y/ I) P5 b return; 9 k K8 U7 m4 Y6 ` }3 A' d5 q: y; d
# y; Q4 k# M4 r* E. @6 p5 ]/**************************传递数据给extend**************************************/! `- v" I/ O y$ ]: v
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( X E: d% F8 }. _2 M* T " P' {0 y& G( q$ ` valueStr = SysAllocString((WCHAR *) L"1232"); # U L6 j+ y$ g" y$ Q& A! V1 Q# ?" P VariantInit(&pokeVariant[0]); % A4 i/ J7 Z7 j pokeVariant[0].vt = VT_BSTR;0 u1 g( Z& b( M' r% u- K; a
pokeVariant[0].bstrVal = valueStr; 6 V' b9 [; ]9 Z ; b$ p8 c/ Z) [7 A/ v5 X( s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ o5 h$ {$ J( Y# L
VariantInit(&pokeVariant[1]); + J& N! x9 D: O! k6 i5 e( W" J* o pokeVariant[1].vt = VT_BSTR;5 E4 W3 ?- H" b
pokeVariant[1].bstrVal = itemStr; % t. j2 s. B0 H; o2 t: I . f$ T" h- ]+ I: O' |' \: W topicStr = SysAllocString((WCHAR *) L"system"); + @: X! @0 ^" L+ f R4 c VariantInit(&pokeVariant[2]); @: b7 v4 V7 o! s6 U
pokeVariant[2].vt = VT_BSTR;* P' | [# X7 z X( {3 h6 L. o
pokeVariant[2].bstrVal = topicStr; 3 ?) A, {; C0 |4 p& x, Y; ^1 s7 \; h, t5 n6 B4 z) I- f l* o
// Set the DISPPARAMS structure that holds the variant. % V' {* ?* Y. d( J' G) E& t1 I+ M3 R% i& Q' y7 Q+ J
dp.rgvarg = pokeVariant; ( P* b- b3 u! d$ f3 X+ X dp.cArgs = 3;7 I6 B3 c, E, U" n( j
dp.rgdispidNamedArgs = NULL; 2 Z% C+ j4 ~2 K# o2 U dp.cNamedArgs = 0; " t. Q$ _# G& k7 D3 E' E" T* d3 ^) C1 k/ ~) `
// Call IDispatch::Invoke() + l6 T% `! K/ y# \7 y" L0 i+ A+ W9 _& Y8 j+ E) l L
hr = m_pDisp->Invoke(5 J' }6 P8 A) v7 d4 b" z: @
pokeID,+ P/ y N$ {9 E
IID_NULL,; Y# |: a6 n6 P: w8 Y
LOCALE_SYSTEM_DEFAULT, % `5 k3 C5 A+ ]: H9 N1 r5 X DISPATCH_METHOD, ' s$ e6 W6 Y9 x n# l! _9 D' d &dp, 1 W+ O+ R; D: r% Z NULL,- z' ?& Z( x \. J
&ei, % u6 j) N& z3 ? &uiErr); O9 D- U, @; V$ e8 V) c+ Y6 f' ~
SysFreeString(topicStr);8 Q# Y; I, s( `7 u0 ^/ m* u& O
SysFreeString(itemStr); 1 e( B, t; |5 ^ SysFreeString(valueStr); 6 k; B1 v( X) c# ~: ?$ q & }) [* G8 K/ }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??? 6 z1 E* v. F$ W, x* x, ^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???? 5 ]" t# ?$ B1 r1 J" a9 s! `4 q6 R3 B4 l7 }0 l- i
' x. `! R1 `) y ]: r! _- T2.这是request的程序. i& u( ` c6 k" ?' D+ q2 X g
// Request a value from Extend 5 j: o8 u9 ^% a+ |( m* }. j1 |3 K, n// * T( @% }0 _) n// Initialize the variant that will hold the BSTR. Set the variant's' G/ u: r6 p- ^. J
// type flag to indicate the fact that this variant holds a BSTR. Place the - I& m& g4 Z8 p$ s8 j7 |// BSTR into the variant structure.7 n/ ~& B$ t9 D% X9 W4 ^; |
s1 f! {: V2 y( f* t4 }: E requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& y, W. s3 y9 o' l- S" S2 ~
& L8 w- J6 e r4 F) l/ K; r6 W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. v# E, z& Y' ^8 i e
VariantInit(&requestVariant[0]); 5 C) i6 H( }7 }- H) _: L* A
requestVariant[0].vt = VT_BSTR; ?6 T* ?' z3 M2 A requestVariant[0].bstrVal = itemStr;# A3 W U$ }% s/ @
* n Y7 \; _& B, c- K topicStr = SysAllocString((WCHAR *) L"system"); 3 K2 Q W6 ]1 n2 O$ D; j VariantInit(&requestVariant[1]); ! i. ]7 P& n; [# M
requestVariant[1].vt = VT_BSTR;7 k6 H7 ^) Z5 [ s: l; c% a
requestVariant[1].bstrVal = topicStr; $ L5 W( `) o, X6 I0 d/ {, \. U% Q8 [# @ ^1 Z: M! X" E. i& W' R
// Set the DISPPARAMS structure that holds the variant. 0 A! Z4 ^1 H/ Y) @5 Q 4 `. H0 c! b) V& Y( R dp2.rgvarg = requestVariant; }6 g* T9 S o% f/ V" ^; P) F: _ dp2.cArgs = 2; ( R( H3 r5 s) j) E: r- Z( r4 T dp2.rgdispidNamedArgs = NULL;- Y% B8 U9 v, E; r: `, J4 w
dp2.cNamedArgs = 0;; [2 t; q4 h5 n5 ?
2 Y: b! o1 _4 Y9 q: ]
var.vt = VT_EMPTY; ( _2 Y7 ^4 p- z2 @5 w, V8 w# x 5 c4 Q/ z' D$ ^- b4 h// Call IDispatch::Invoke() 5 q2 }# [! L/ g' Y; B* _, I - l; g3 |" l/ N* z. T hr = m_pDisp->Invoke(# j$ [' c6 h# Q6 C; n# a+ x& c
requestID, 4 t/ }7 g' X9 V9 H( } IID_NULL,7 i K% ]9 C4 x0 b
LOCALE_SYSTEM_DEFAULT, 5 f4 B8 r4 |0 k5 B DISPATCH_METHOD,) ?* w. y4 j7 j6 I6 E
&dp2,7 A' l0 ?( K; m) q0 C1 o) }& p
&var, ; u2 D: v5 ~/ G, N/ F* U% B* N &ei,9 V( H" K4 I# D. k" o" H. d
&uiErr); + k% Y. g1 k- ?: R: a5 ?* c" p. M5 P" A- R
SysFreeString(topicStr);: c; ^3 R: r2 T
SysFreeString(itemStr);/ {2 E/ U% r1 \ H) Y( ^
请问该程序是获得extend里面的哪个值?' f; \. K) M8 K1 ?; @& 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????