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:- K! g8 `" J( {6 X; A4 f5 L" d
Name = (WCHAR *) L"Poke";9 r a' j/ U; @; |9 O( V7 x
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hr = m_pDisp->GetIDsOfNames (& }9 x$ H! \; m' _9 j g
IID_NULL, // reserved - G0 Y3 Y5 O. d/ H2 a/ V7 F &Name, // Array of names to get IDs for+ O) B8 a Y8 }# W
1, // # of names in the array& q3 C: O8 ~% B$ }
LOCALE_SYSTEM_DEFAULT, // System locale ; [8 H+ T& @! P* ~, b3 c* X &pokeID); // Array of IDs to fill on output$ a! e' C+ N6 ^$ d8 m, M
+ F# c& Y' s, ]2 V8 {
if (hr); @/ V- c4 w( r. K0 u# C
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MessageBox ("Get Poke Unsuccessful");6 s6 D1 y3 b* W2 p" g, H4 p7 X
return; ( l' f$ q% b& ^( H* v7 x" k/ a# x }9 \, P. o' F1 t: K& A
1 d4 d, [8 e6 v8 m; y, W/**************************传递数据给extend**************************************/& g; K* L9 p3 g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 a7 M, T, |+ c# _7 N o |
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valueStr = SysAllocString((WCHAR *) L"1232");( _% s% M" a' ], S
VariantInit(&pokeVariant[0]); . u$ t% q& e7 B3 X
pokeVariant[0].vt = VT_BSTR;6 y; `6 o$ r/ y$ ^
pokeVariant[0].bstrVal = valueStr;& s: j5 i/ o$ U" G7 c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % Z0 X/ X! P& r8 L VariantInit(&pokeVariant[1]); ( D* `+ V! m8 p. `& E0 {1 E+ L+ y! M pokeVariant[1].vt = VT_BSTR; 0 A4 I: M _ r pokeVariant[1].bstrVal = itemStr; 8 d) H1 e+ \" \( P9 m+ v" O2 @, ^; E" f# V. [
topicStr = SysAllocString((WCHAR *) L"system");* T h) C" s, a U
VariantInit(&pokeVariant[2]); & s0 q, |1 {3 _: j! {( t5 v! X pokeVariant[2].vt = VT_BSTR; 8 \9 d* Z: Z* m% e3 K! e: i7 R- C: B7 ~ pokeVariant[2].bstrVal = topicStr;% i" G! U v3 g" a, m
1 u5 S: M! q2 O0 k// Set the DISPPARAMS structure that holds the variant., a1 t3 B0 h/ P3 r2 O; f
8 z+ T0 { L5 {: N, w+ z! k+ R* X dp.rgvarg = pokeVariant; $ m% a- z; M" {+ |" K3 q" R+ m dp.cArgs = 3; ' V4 v. V* B3 f9 u# C dp.rgdispidNamedArgs = NULL; 6 c$ l/ H0 Y$ a& Q1 J+ J dp.cNamedArgs = 0; , O( z1 w, [" N8 e: m 9 [7 D; s7 n! P. q// Call IDispatch::Invoke() 5 y5 z7 B; v4 b1 ?. n 3 F/ f" l r, K8 g% l hr = m_pDisp->Invoke(# j$ c1 Z" q2 u7 A, ~/ v
pokeID, 2 L: |, ?' C; {- K# c3 o. m& a IID_NULL, ) X5 v: E; z/ W9 D7 I$ j3 h0 W LOCALE_SYSTEM_DEFAULT,7 X7 t1 M- K5 F3 [0 ~
DISPATCH_METHOD,& N8 p$ }; r. n* m: {
&dp,: `! J# e' ^) v/ `$ a
NULL, ! a. c' w1 A9 y &ei," J" [6 ^9 C4 F8 G9 f9 C; s
&uiErr);* \1 b4 n B- E& A" z( J! @8 K
) z$ T l0 C, l8 G SysFreeString(topicStr);$ o& Y0 p! M7 t/ S3 k# ]
SysFreeString(itemStr); 1 @" |6 [- Z% E" _- T SysFreeString(valueStr); 7 K. A$ d8 d8 P3 h+ W6 A- s 3 E* i8 E- D# e4 p8 l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??? \& _3 y z, `5 z' e
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, C7 s( O! c$ P7 h! v* q5 Y1 r J- G; c
3 N: [2 J8 L. U4 U+ j2.这是request的程序! H+ }3 Q4 b. D3 T7 a' [: K
// Request a value from Extend ! Z& N J* }. y7 N: P% a* x//) _0 W' k: L, T
// Initialize the variant that will hold the BSTR. Set the variant's 4 K, N( ~: A9 }# _// type flag to indicate the fact that this variant holds a BSTR. Place the# s, n0 P3 M/ |/ t6 K2 d' V
// BSTR into the variant structure. 8 k8 A$ o+ ]3 p5 p, s5 x4 j* t0 P3 `) D0 P% @: u1 u, z8 Y
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& o: q1 @2 m% U0 h& t( v
: D* n/ b/ K% Y/ F2 p& [! v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % [, ?# w& W0 ?8 h, h+ u& C VariantInit(&requestVariant[0]); % R1 D' z, J) i6 a& c requestVariant[0].vt = VT_BSTR; w0 C7 t7 ]6 j+ h/ y' R; I+ o requestVariant[0].bstrVal = itemStr; 5 y w# j; Z: M; ^6 ]& n* G ; Y' X8 d" a& N: _2 J# | topicStr = SysAllocString((WCHAR *) L"system"); 3 O( [& ^ }2 j) \- G0 V, D VariantInit(&requestVariant[1]); 3 ]: i6 N, B, P" J7 T" z+ z* L
requestVariant[1].vt = VT_BSTR; r* H% R, \ k F: j& ?' @: ^
requestVariant[1].bstrVal = topicStr; - l! o! {8 A4 M: d + J6 r2 \9 }. p k& N// Set the DISPPARAMS structure that holds the variant.) H8 h$ J: s( s+ l# N
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dp2.rgvarg = requestVariant;0 c+ H2 o- Y' F6 {6 |% i7 O2 X! q5 M
dp2.cArgs = 2;0 i* d( l0 E1 Z# a% v; W
dp2.rgdispidNamedArgs = NULL;, W8 j& |6 S5 o/ C3 |+ }& E5 g1 ^
dp2.cNamedArgs = 0; " L- e* l8 v' V* @0 f7 Y) | 5 G! a1 q* t; D# V) \$ B var.vt = VT_EMPTY;5 M/ g6 Q( V7 a
' g# T3 K0 H0 \7 c( [% Y// Call IDispatch::Invoke() 7 U4 n/ a4 L g: Z ) ?4 U: [, ]3 f0 i$ B" d) ]% f hr = m_pDisp->Invoke( D$ Y* i/ \. T) Z( ?& ^' x5 r; `# I requestID, & F: ~- F' |6 [4 w* i, ~; A7 i IID_NULL,$ o" B+ H6 V5 b+ U! B) `
LOCALE_SYSTEM_DEFAULT,+ x6 c8 Y5 C- O# W
DISPATCH_METHOD,/ U6 U5 h u0 T3 J
&dp2, % r8 O2 `. M6 X0 k5 ` &var, % A7 S$ W: o# E* w( W3 q &ei,' \! H8 D+ a1 c9 W" t" _
&uiErr);0 w* ~4 y3 M5 p! ?8 g8 J
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SysFreeString(topicStr); @" m8 [4 b6 C; X SysFreeString(itemStr); ' A4 ^2 N/ U1 v请问该程序是获得extend里面的哪个值? S8 J2 Y( A5 a( P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????