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: ]2 v) \( B1 [. z
Name = (WCHAR *) L"Poke"; U3 m7 A( I: e
R- I0 D* k3 z) d1 n4 l0 h8 J5 q3 a hr = m_pDisp->GetIDsOfNames (# z0 d. k* r: C' D+ }
IID_NULL, // reserved ; T! i5 L) Z$ q3 Q &Name, // Array of names to get IDs for * O& U% ~: L9 P4 ]' [ 1, // # of names in the array - O9 A& O2 W4 W8 g. r) W LOCALE_SYSTEM_DEFAULT, // System locale " W. h- N( Z5 C% F% R% C( M+ S &pokeID); // Array of IDs to fill on output1 D! U4 L8 u% f
/ R7 x" u: n: L* W
if (hr)) ?1 ?8 r) ~7 |! g- Q
{ ; t9 i) T$ B B4 u' P) V MessageBox ("Get Poke Unsuccessful");0 ^7 x) G+ z+ ]$ b
return;0 B7 z' G8 H7 S7 ~( z
}. J% h v6 y/ F0 v% F0 [
6 w- P% C! P1 |; a3 Y' \ }
/**************************传递数据给extend**************************************/. e4 s; ^, t1 s) x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - t) K1 _# d9 B3 I5 O ! q1 \/ [) V1 l9 U( N" u! o valueStr = SysAllocString((WCHAR *) L"1232"); % {) i; B- Y# G4 Z3 q+ c VariantInit(&pokeVariant[0]); ( R2 J! F9 ^: `9 E" Q) i. R6 ~
pokeVariant[0].vt = VT_BSTR; 0 U+ J* O3 F) P/ R1 r pokeVariant[0].bstrVal = valueStr;$ y& k$ a% h5 M3 F; ~" F
' |& e) U: E8 a. b; H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. f4 i, a. i' Z1 Q0 e7 p
VariantInit(&pokeVariant[1]); ' b0 D) b' Q4 L$ c pokeVariant[1].vt = VT_BSTR; 9 X: ^# |6 W: h5 {% f1 ^3 l" b' C0 `+ @ pokeVariant[1].bstrVal = itemStr;8 R- y' O6 X: v$ Z
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topicStr = SysAllocString((WCHAR *) L"system"); 2 J) C( J/ `8 D% C0 ]. v% x VariantInit(&pokeVariant[2]); ( E0 q% `, w0 l+ w% ]% \+ z) R y
pokeVariant[2].vt = VT_BSTR; 2 A9 J5 o: \! i' H* d; T7 R pokeVariant[2].bstrVal = topicStr;, m8 s; n8 @. y. w
1 L( P( P4 x0 J, A: U// Set the DISPPARAMS structure that holds the variant. 0 l: a* Y t7 j7 W& c# @& j* }! R' T8 m; p7 ?( u
dp.rgvarg = pokeVariant; & f; X! [5 y/ l; B: B dp.cArgs = 3; ! v: X- e X* [5 ]8 y dp.rgdispidNamedArgs = NULL; ! [! U# b3 n) V" J dp.cNamedArgs = 0;0 \( p: i( F( G( I' M4 E: C2 O
' m y7 ` ~" X) r/ L0 t// Call IDispatch::Invoke()$ l$ x7 i& x( q1 u6 y/ a5 [, Z$ b
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hr = m_pDisp->Invoke(& i8 B# q/ K' `% o: O4 }# N" n
pokeID, 3 u% f" {) f. |3 ] IID_NULL, 3 g* ]: G0 n$ A0 ~/ n( M4 o9 M1 _ LOCALE_SYSTEM_DEFAULT,7 x2 q1 J2 U6 b
DISPATCH_METHOD,9 `2 A, X3 _! a& u
&dp,4 X3 v% N; a1 u- @: c* }
NULL,' p+ ^. ?4 O7 k4 Q/ N/ x
&ei,9 Q W4 e( E4 y, o
&uiErr);+ f% |4 `# w5 z2 i) R; f6 V8 g
4 k6 [3 y, Y' y/ f& o" A8 K p7 {" D7 S SysFreeString(topicStr); 1 v6 h' A! j* {! _% J$ G: v SysFreeString(itemStr);3 C& Z- o0 f @9 ^- n
SysFreeString(valueStr); " H$ i2 {7 H6 |/ {4 j2 ~4 @5 r4 ~* ^0 l H% v5 H X: A
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???, L# `! q4 a6 W e/ `: x' x) Q
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????% t: f* X" d/ E& S
! i9 J5 _9 M+ p+ n 0 h+ v7 i0 ]+ v* e' h1 U2.这是request的程序 4 t0 R4 e, R/ X6 }# d: l& \// Request a value from Extend1 N5 _2 O) t7 q: J" t, s
// : v2 {# u- [4 X; F5 S// Initialize the variant that will hold the BSTR. Set the variant's * a0 z7 d% i1 F2 A* j- _: _// type flag to indicate the fact that this variant holds a BSTR. Place the 7 Z, Y% R" c: `( R4 X4 ~$ c// BSTR into the variant structure. 2 G3 R# X* W( j8 S& P7 E( V. |* q+ J! Z
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* [1 g" p+ |4 r5 e/ \. K
' Y% x+ d b5 a4 P. P" |) I: ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 ]. G/ f ]7 c9 S
VariantInit(&requestVariant[0]); 7 i- l, k, W+ x requestVariant[0].vt = VT_BSTR;+ R4 x0 @4 ]& S+ F x* S
requestVariant[0].bstrVal = itemStr;' {; v/ F6 R8 z& a/ p
5 `$ }- U& {/ \/ R, Q) `2 z9 @+ O topicStr = SysAllocString((WCHAR *) L"system");# c1 Q" [& ~2 v* d. X
VariantInit(&requestVariant[1]); ( U8 S+ ?! @4 p Z% L/ l
requestVariant[1].vt = VT_BSTR;: j3 h! Y) J; g7 n1 E! u
requestVariant[1].bstrVal = topicStr; 5 h8 n1 z6 P# h, l( _: U2 ?6 ^$ l5 S- G# s' w2 _0 y/ \
// Set the DISPPARAMS structure that holds the variant. / {6 K7 X" u( q! O5 ]1 y' Y- w $ `' K1 J: D- o5 [1 L1 d { dp2.rgvarg = requestVariant; 7 s3 {9 H2 W. E* v, D( r! d dp2.cArgs = 2;* Z0 \ A0 \* X2 P
dp2.rgdispidNamedArgs = NULL; 4 S5 _" ]3 W: A dp2.cNamedArgs = 0; : R; E/ V, H2 x0 ^7 W" J j, P/ N7 j, E9 R, K: {( r+ B
var.vt = VT_EMPTY; ' I$ m! B( w* @) i D n9 C" ]' l: N4 q; K' T3 L; @% H& k# }" d
// Call IDispatch::Invoke() 0 W4 {* h. h" h& X+ m2 C8 ]0 y2 G8 h6 C* Y* c- p9 T
hr = m_pDisp->Invoke(7 o- T3 w: r" @: I. X! r
requestID,) e) N! L5 ~9 q
IID_NULL, 5 z+ r |( g# e/ G0 Y" a+ f LOCALE_SYSTEM_DEFAULT, x, K3 w1 Y; j" h4 G1 m0 {
DISPATCH_METHOD, ' V- [- q1 g5 O &dp2,. k% `; m' |: J ?" n# M
&var,6 g' u+ A4 A. F/ I
&ei,* W, C+ Y1 W, j9 g( F
&uiErr); % N4 c+ W1 b0 S' g% f! g% ?5 W. Q( I) J3 G1 K& w) c
SysFreeString(topicStr);" B2 D j: G# T2 G
SysFreeString(itemStr); - N- k" U* g: F请问该程序是获得extend里面的哪个值?* p- M+ t) j6 T1 g
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????