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: 8 x+ J E( u [: k4 hName = (WCHAR *) L"Poke";. F: ?+ @3 }9 _: z _1 ~# ~) g% z
5 ^' ]( j* F7 v! } hr = m_pDisp->GetIDsOfNames ( . E/ L! V3 c4 Q+ k8 T0 Z4 ^; X IID_NULL, // reserved ; t1 V! r T% a2 T &Name, // Array of names to get IDs for & {3 H: R6 G5 q! P 1, // # of names in the array8 e; A3 S) r9 ^# L# J3 J
LOCALE_SYSTEM_DEFAULT, // System locale* j% |0 a4 X) s) E$ v
&pokeID); // Array of IDs to fill on output8 l) ? Y; k% N! O
. i8 a$ I2 [% C5 f# v! }( L# ]0 v if (hr) 7 I$ U+ q- F& w5 E+ q {9 R5 X! v K! E0 C( s4 w) k; K
MessageBox ("Get Poke Unsuccessful");* L0 d4 p4 _! C7 A4 P
return; y- ?" Z# R* v: j8 o" t6 \ }2 {- Q- r( Z7 R: L% U9 U
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/**************************传递数据给extend**************************************/0 F+ N$ f% k, V0 N
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 j- H+ ~0 \0 ~2 L2 _' @5 k x* u) u. b 4 ~+ B6 n+ T0 F valueStr = SysAllocString((WCHAR *) L"1232");# a7 J$ F( X8 p0 {( U# o
VariantInit(&pokeVariant[0]); 1 Q; U, H/ p/ @+ V! r) z pokeVariant[0].vt = VT_BSTR; ( ^3 ~" n. c" S' O% Q, } pokeVariant[0].bstrVal = valueStr; / K* ^- a. I$ X) v% y) o) Z . s" ~/ A! e; q+ A, v! w# a3 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# L( L* `. M+ U+ }8 `
VariantInit(&pokeVariant[1]); 7 ^; x4 O7 _+ f1 g o pokeVariant[1].vt = VT_BSTR; * t/ G+ n, I8 ^$ T pokeVariant[1].bstrVal = itemStr; 2 I, v5 L: f* j; h& n " E( L J! o) Y' }. ~5 ~1 o topicStr = SysAllocString((WCHAR *) L"system"); - G, n! b* k* f! p8 I VariantInit(&pokeVariant[2]); . m! r. ~( q$ t) v" d- ^3 U3 H pokeVariant[2].vt = VT_BSTR;6 R/ r9 f& Q9 l6 O
pokeVariant[2].bstrVal = topicStr; ) m9 d8 r) ^5 P: X8 n3 l+ C' _+ D; e4 k
// Set the DISPPARAMS structure that holds the variant. 7 n+ h7 i, ~- {: P1 Y! M$ f. h( b ! i/ {6 s" n1 y* l# r( w% w! Q dp.rgvarg = pokeVariant;$ A( L0 ?* i, p, \' s) s
dp.cArgs = 3;: N4 _) B) c. e \1 q
dp.rgdispidNamedArgs = NULL; $ i2 N+ X, ?# |6 [0 v dp.cNamedArgs = 0;2 L2 D3 D( l d7 T, W; Y
6 R* K3 J' n! `2 m1 D$ A// Call IDispatch::Invoke()5 G) q' `) }5 q; l2 \) I6 S
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hr = m_pDisp->Invoke( & \9 V1 a) f* ^, O pokeID,* \, v9 ]5 I6 f# C7 D' ] _* f" ]
IID_NULL,; j! M& X; Z7 e3 S; [* a% k
LOCALE_SYSTEM_DEFAULT, + q+ u' L% j2 E# W, H9 B3 D DISPATCH_METHOD,6 k/ g {, c! M! e' B
&dp, * }2 H& P% T! ^6 R$ H" u NULL, # [# P' a. x- p! c/ G! P# `4 S &ei,6 G) b9 l$ ^1 q4 x2 n5 f6 P K! ^5 b
&uiErr);, c# r0 P4 u1 k2 E7 P4 x+ Z2 j
' s, I* B6 Y4 F2 ]: C* x SysFreeString(topicStr);' _$ f+ E, ~) p$ ^
SysFreeString(itemStr); 8 m5 e- D4 ~3 @; R, B SysFreeString(valueStr); : ^2 F. D* V' ^8 [8 U: w2 E3 T4 g/ Y# P1 w! K3 H* B; e2 V3 c
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 ~3 q% D. U, \! z0 g
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????! U& p' z% U: C0 U F0 x: |1 E+ Z9 ?
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2.这是request的程序8 x; B% U/ J! o; z+ V9 ~, V K) U
// Request a value from Extend! G; J! T! E* C$ [0 A
//# g% n# e( V# @ Y+ e7 q ^
// Initialize the variant that will hold the BSTR. Set the variant's2 ~( [7 A/ N C
// type flag to indicate the fact that this variant holds a BSTR. Place the9 m5 p" S1 A! b; R. b/ ?6 }
// BSTR into the variant structure. ( u( M7 ~, o1 j0 c$ R% i& ?+ C: C$ }! A+ X' i. a0 V6 _0 ?/ r h5 h4 `- w+ l% d7 X
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 [4 e4 }2 c. ?3 P! W* }! @
+ ^, l6 z- U" y# x, s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 e! x- Z1 s% L( u ~$ ]
VariantInit(&requestVariant[0]); 0 i3 p1 Q% [ I/ [: w; Z requestVariant[0].vt = VT_BSTR; v+ R3 ] q; E C2 X* {# H5 \9 K requestVariant[0].bstrVal = itemStr; % P( {, R9 m9 H# o9 E ( s; y; O$ e7 n5 Q topicStr = SysAllocString((WCHAR *) L"system"); 5 |' v+ S: b2 _ VariantInit(&requestVariant[1]); & E3 H+ Q7 H6 ~ requestVariant[1].vt = VT_BSTR; ! f7 |1 H d) R, r( n' l4 w% D" h0 Z requestVariant[1].bstrVal = topicStr;9 Q( M I2 A7 A% [8 @" j
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// Set the DISPPARAMS structure that holds the variant. 0 o3 R1 z0 K a8 j* V8 V+ |: Y) `$ J9 [4 y7 n. D
dp2.rgvarg = requestVariant;, B& h$ ~8 p/ a
dp2.cArgs = 2; * `1 T- H; M0 Y& V- X( D dp2.rgdispidNamedArgs = NULL; 1 B1 c! O8 y7 a9 S! H5 y dp2.cNamedArgs = 0;9 `4 F J7 \9 x! U. L
, X9 d! b: p* e7 ^5 _; ` var.vt = VT_EMPTY; : l7 i2 u. |* V, o9 k' n4 d# I ?( y* k' W) }4 C
// Call IDispatch::Invoke() . [. @. S' B3 j& Y2 n/ P1 l# r! v; o; o4 E0 d2 [
hr = m_pDisp->Invoke( 6 N* \* S+ e1 ^3 U requestID," G) v+ L- O/ ]8 W0 w. q
IID_NULL, % U9 A8 R* ^' r! C2 E LOCALE_SYSTEM_DEFAULT,3 @% q, G6 F, E4 }
DISPATCH_METHOD, 9 c$ f/ I: w; P1 K. C &dp2, 6 f0 G& P- [: W1 [) a! T &var,: r9 y, v# F. t- V( |
&ei, F0 v8 f- u- t0 Z &uiErr);: L% ]1 X8 \& Z2 o
* M4 [7 Z! @ ^/ u& b# Y SysFreeString(topicStr);' m2 k5 l3 g, W8 T2 \; K' {5 s
SysFreeString(itemStr);/ y4 N5 _' c' |
请问该程序是获得extend里面的哪个值?4 f8 l P7 R% {2 n
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????