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 G$ S" R% ^
Name = (WCHAR *) L"Poke"; & l e+ X) e6 g. Z+ R, \" ` 5 c' K6 d# s0 I6 J; c) | hr = m_pDisp->GetIDsOfNames (# r# \' n1 }& W1 J& D" y0 E
IID_NULL, // reserved; O- I ?( J" b
&Name, // Array of names to get IDs for 1 u$ e9 c% L4 I* M i, k 1, // # of names in the array0 v. q6 C, }1 [, a$ i$ u
LOCALE_SYSTEM_DEFAULT, // System locale" }0 I W r, Y$ l3 d
&pokeID); // Array of IDs to fill on output( j% v9 r) S' a7 U, H2 X$ e
' `" |; h8 w8 o9 f+ f$ Q: W, k if (hr) 0 K1 W! Y1 b: _ { ( ^" `# i3 J3 u; R6 } MessageBox ("Get Poke Unsuccessful"); % u5 F# r/ d! G( n, F return;# e4 p8 S$ C9 p6 i% a) M/ N( L% S
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% ^# w) D+ @# z5 u, W/**************************传递数据给extend**************************************/ 4 I. w ]! F) J# ^1 x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" B8 _7 s: V$ R' i
% g- W7 ^$ e w3 ^+ a! c
valueStr = SysAllocString((WCHAR *) L"1232"); 4 o) G3 P% Q$ m0 F- j VariantInit(&pokeVariant[0]); ' V3 N7 b' W1 Q( o% ?) @) t# U
pokeVariant[0].vt = VT_BSTR; 0 G% k, m7 q' D1 f pokeVariant[0].bstrVal = valueStr; * r9 Y) D5 v) D$ U& O5 t/ ?* C8 X% ]( I% h7 P8 ^: Q$ K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" T' y& Q* W, i# x+ I
VariantInit(&pokeVariant[1]); 4 E# [. `0 d% Q7 v# c& m
pokeVariant[1].vt = VT_BSTR;# |. u6 [/ A ~" c$ c+ k. K4 I
pokeVariant[1].bstrVal = itemStr; ' l) f5 M$ ]' m/ |0 H9 l9 h5 Z7 m5 F" r
topicStr = SysAllocString((WCHAR *) L"system");( t! e0 s6 b6 o5 J6 ~2 j
VariantInit(&pokeVariant[2]); * G2 b5 C0 D$ m2 ?' x
pokeVariant[2].vt = VT_BSTR;) D; V8 r6 r; x/ R' k8 x, V: A
pokeVariant[2].bstrVal = topicStr;3 {, l& v1 x3 y* z" b
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// Set the DISPPARAMS structure that holds the variant. 4 y$ K8 ` a7 o! U0 A. W1 J- H; L. }: o+ G0 w( K9 b
dp.rgvarg = pokeVariant; & z* ]' g* N7 R3 O6 ` dp.cArgs = 3; : u4 D3 W1 v+ s2 e& P% D3 r dp.rgdispidNamedArgs = NULL; " W$ |) s- z- M dp.cNamedArgs = 0; , N( B' V. \6 s% K! s : c% t* W8 j0 E+ i3 c# X1 ^// Call IDispatch::Invoke()' _# s9 T! {" T: {9 @3 D
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hr = m_pDisp->Invoke( * y, ?5 G+ u- E9 @& F6 K pokeID,8 P. L" @' O: Z3 w( E
IID_NULL, * [$ |6 N: @! E LOCALE_SYSTEM_DEFAULT, {) w' A/ i$ L. d DISPATCH_METHOD, 5 D( |5 h' F, c& V( C& a* R8 ]5 L &dp, 2 P4 D! P" z$ c8 D$ K( X7 m NULL, 8 k' k6 A9 d5 g/ v- P0 c9 I$ g3 ?) L. ~ &ei,8 O7 A; S8 K6 ?& ?0 ?6 A1 \- Z
&uiErr);- C$ O2 k- F! @7 {1 x% s3 R% X: n
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SysFreeString(topicStr); ( \2 B; O( N$ d. U& Q- Q1 _# E SysFreeString(itemStr); 0 ]( Y5 z$ h+ p! u: g SysFreeString(valueStr);, d( k" y' e0 }7 C( Z7 e
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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??? & P" q: v! {* O. o5 n, q5 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????3 A$ V! `) J6 ?, S
& l8 W4 S" P. q- Z 6 `( l u: d% C) F2.这是request的程序 ; E0 r1 @' L6 _# K' j G// Request a value from Extend6 M& ^9 k7 V/ a/ w) X+ e) J
//8 w* `5 R, X& d/ q5 d0 l0 L# ~
// Initialize the variant that will hold the BSTR. Set the variant's+ G. J. c% \: Q1 ?4 A) L! x
// type flag to indicate the fact that this variant holds a BSTR. Place the . q6 _/ R8 @& s3 [% h8 d// BSTR into the variant structure. ' ?, B, O! d; [% I _2 S: }; @+ T. k d6 p: Q5 c; r- b8 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 f' [2 j+ c2 u! P . g% e% h/ H a4 H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - P. Q5 g# M- x& |5 K# `) b VariantInit(&requestVariant[0]); + y7 c8 g2 a1 I0 z- e requestVariant[0].vt = VT_BSTR; 3 G+ V" }6 L9 A1 F0 {1 G3 B requestVariant[0].bstrVal = itemStr;# U% h5 A& Z- }9 t5 |
% E4 N, r! X: I) O: b1 o& U topicStr = SysAllocString((WCHAR *) L"system");- I7 S$ s) W# o6 m& R
VariantInit(&requestVariant[1]); # V6 `# y9 X' @* t7 i
requestVariant[1].vt = VT_BSTR;7 b1 E( r* q A
requestVariant[1].bstrVal = topicStr; 6 Y' G4 B6 |3 M. t& ^( T 0 n# ^! \+ P2 p4 W// Set the DISPPARAMS structure that holds the variant. 6 j1 ?2 R3 ]* R6 G7 } H: B6 V* |: V. E
dp2.rgvarg = requestVariant;7 q( q2 I3 U+ v
dp2.cArgs = 2;; o; b, E4 I0 V, i& k9 h8 D
dp2.rgdispidNamedArgs = NULL;4 }) v4 T& O! v9 F+ i; d7 `6 H3 ]: _
dp2.cNamedArgs = 0; , H- C4 J! R( ^$ Y( J ( s7 {% k$ c; s$ ~. ]& {6 G var.vt = VT_EMPTY; + b9 u+ \6 c5 y) u- `- q5 l* A' n4 F
// Call IDispatch::Invoke()$ Q# z4 |0 k# J, p [" w( w
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hr = m_pDisp->Invoke(: g2 p8 s8 k8 N4 K m
requestID, + H$ d" D7 z, w( S8 ` IID_NULL,3 b7 v8 K+ N& M; A/ S2 V& E2 p
LOCALE_SYSTEM_DEFAULT, T" c2 w# W2 r! q% i DISPATCH_METHOD, 8 x( A2 {+ t7 m' a5 U- B2 M &dp2,5 d/ y: A9 y( N% l9 A! D
&var, 7 V5 F: V7 M' d s F2 r. h1 Q &ei,/ v) @6 X L- Z+ I* G/ Y
&uiErr);5 y. H2 }8 I* _
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SysFreeString(topicStr);1 V9 I1 I8 ]1 B
SysFreeString(itemStr);, q& W0 Y0 n; K' `& y6 I l$ g
请问该程序是获得extend里面的哪个值? a- S6 U' @2 S' c1 X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????