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:# |1 z* j$ U1 {0 f; [1 p# B
Name = (WCHAR *) L"Poke";6 n+ J! F9 T1 Z3 r
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hr = m_pDisp->GetIDsOfNames ( / D9 S! B) D& N4 _8 n7 s0 ?. z IID_NULL, // reserved" C( w& T. |. z7 H
&Name, // Array of names to get IDs for 8 D+ r8 k2 m/ B" U 1, // # of names in the array * Q: }2 ^! G1 a5 g7 {" w LOCALE_SYSTEM_DEFAULT, // System locale/ J& O; Z* _6 K+ b1 c" J% M
&pokeID); // Array of IDs to fill on output0 O2 Z* g. U- S7 L9 v" s5 y4 C3 r# o
% b% ^1 i. i& H0 t- ] if (hr) , @9 i' e5 F' l! l { 7 ` n; B9 [+ O, ?) Q8 a1 K( Q2 @2 E" P- G MessageBox ("Get Poke Unsuccessful"); ! f/ X1 I- c0 G4 S return; , u5 u6 t5 N6 g1 t+ o }" Q& z1 F& w/ s0 [8 |
( v4 D9 V7 H" _ C. c/**************************传递数据给extend**************************************/" Y% Z" Y1 L/ `; l1 s4 z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - U, @" [1 r* y. N& `; D ' r- z1 t" @# \3 @, @# B9 a
valueStr = SysAllocString((WCHAR *) L"1232"); 7 s) R3 e5 K1 `& e$ ~& T- E VariantInit(&pokeVariant[0]); . _( O; \0 y& W" Q- K0 o2 e pokeVariant[0].vt = VT_BSTR;& B! H2 G& T- v& V% k
pokeVariant[0].bstrVal = valueStr; 0 ~& E! V& w9 ~0 V: x* y }& | ! H ?. }6 N/ j4 \( ^, y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% e% W1 A% o' G j2 \% |9 W
VariantInit(&pokeVariant[1]); ( m1 {% S: b; Q0 a2 A
pokeVariant[1].vt = VT_BSTR; 2 G8 M6 V Z% t. b% a1 } pokeVariant[1].bstrVal = itemStr;; u; ~3 W% X; o, Q. F$ g
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topicStr = SysAllocString((WCHAR *) L"system"); / \+ J1 O" K( t; u) V& I VariantInit(&pokeVariant[2]); * w1 E" x. E9 ^; F/ b$ B) I1 ` pokeVariant[2].vt = VT_BSTR;! j* c9 h% ~7 M! n6 B k8 A
pokeVariant[2].bstrVal = topicStr; # b2 r- M! d# X+ h8 D, u& N % a4 f/ l S# F8 a// Set the DISPPARAMS structure that holds the variant.9 l* C! x Q2 L. i4 S. k6 ~2 U
' R0 _; _# H5 g5 E% f+ J d M dp.rgvarg = pokeVariant;" ~% [5 y' \ l" M! z
dp.cArgs = 3;/ r( [& h2 l$ j$ k9 _
dp.rgdispidNamedArgs = NULL;( L7 z h5 D$ X4 u* M0 E
dp.cNamedArgs = 0; $ }1 V2 z3 Q- L- Z& P+ \1 J! @ j0 c7 w( H, [
// Call IDispatch::Invoke() 8 J+ R$ B- H, o& m% w8 a2 [8 @" v' t; T7 V
hr = m_pDisp->Invoke( 3 p4 T' h- _0 h! s5 ^ pokeID, % r1 T6 f7 k! h# B8 t4 x IID_NULL, / H% g2 k! w, T9 F$ e z LOCALE_SYSTEM_DEFAULT,& y6 s# s( S4 U- ^5 W& c
DISPATCH_METHOD,* m; `: _8 z" z6 s: W3 T! n
&dp, + n9 I; a; K( a. R NULL,2 S; u+ H6 T. `4 ?# S5 i4 Q3 ^1 r
&ei,4 o8 X/ s6 Y6 _- c2 T
&uiErr);, z+ B% @$ X' Q* {: j
) o! F$ P' X3 c! b- c# x& S6 { SysFreeString(topicStr);% s- a* W: d4 g# i# R
SysFreeString(itemStr); ' x/ ^& o# W' t+ m7 w+ T% {2 r SysFreeString(valueStr);" f/ O: i {7 t; y: G& `
3 R {$ W ?* `. i3 U, \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??? 1 y. {2 \! H7 E9 D* n9 U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????9 t& N" \6 s9 F. A" H. q U
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0 j( ]+ y, K: d; n0 y$ C# _7 C2.这是request的程序( K; ~. k# R* X
// Request a value from Extend ' E- A$ ~$ J5 n8 Y% V: r// l" i) L- j. P p// Initialize the variant that will hold the BSTR. Set the variant's ! O6 l. A- Y- x9 j8 s// type flag to indicate the fact that this variant holds a BSTR. Place the $ F3 d6 S/ ` K4 g// BSTR into the variant structure. 8 U' E2 d' D3 [1 n9 ~ ( w% }# r' S/ M0 Q" T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' U/ M" N1 R, \ g8 A% E
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# _# P: [( T* Y& ?4 \8 E1 p4 c
VariantInit(&requestVariant[0]); ) d v% H3 F5 y9 ~" C) n- K requestVariant[0].vt = VT_BSTR; % F7 |6 @0 `8 l+ `9 L9 q requestVariant[0].bstrVal = itemStr;& D, ]- H5 i9 E/ o9 X9 o
0 \ @+ g* {/ O7 A6 s topicStr = SysAllocString((WCHAR *) L"system"); 5 [3 U* f9 e. V, @+ w% b `2 v4 y VariantInit(&requestVariant[1]); 9 a' T( ]- h; v3 A- T$ u
requestVariant[1].vt = VT_BSTR;. }' M$ o$ [4 j) I2 H
requestVariant[1].bstrVal = topicStr; 7 m4 A5 E/ ? ]' a3 r9 z3 B ~; u3 B
// Set the DISPPARAMS structure that holds the variant.- w% M5 q( l1 l2 w9 ?7 ~
5 {3 l/ j5 F; k% _ dp2.rgvarg = requestVariant; / e# [# |9 g7 S% f7 ~8 m dp2.cArgs = 2; " g- I9 L1 T) s( d dp2.rgdispidNamedArgs = NULL; ! D' r. k; x" s! O dp2.cNamedArgs = 0; , @5 P2 \2 F: i* Y, j " [9 \" E( Y- N7 L7 | var.vt = VT_EMPTY; 1 j" ^& r* ?9 O: r1 X& B) S1 F + K$ a9 O% k2 U x$ h' ]! B( L// Call IDispatch::Invoke() & q. G9 ^# \) c* ~, N8 i& o. r3 G, o; l4 v" W0 Z0 Q4 g
hr = m_pDisp->Invoke(8 b! W E n, O f, x) G4 p
requestID, 2 e3 H. m# @- M) \, R IID_NULL, 4 f4 g0 F$ P/ D LOCALE_SYSTEM_DEFAULT, " M% r5 a' N3 c9 O DISPATCH_METHOD,3 c% z6 r: g: O* E$ z7 k
&dp2, 1 b4 K" T' b% E7 ^) u, _% y G &var,5 a! i( H: [; W+ J! k1 z
&ei, ! q- {( g" M b9 a &uiErr); + k5 w- Y$ _' j3 c7 Y4 H' @; m* x 8 i4 y8 m4 h2 R' C SysFreeString(topicStr); ]2 m& d( P$ J* @! v; _
SysFreeString(itemStr); 5 O; A5 P9 S, S0 c+ C' Z3 `$ } ~请问该程序是获得extend里面的哪个值?* @4 `- S2 N/ Y: s' j
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????