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: / W" F' n5 k! WName = (WCHAR *) L"Poke";( H( Y, q, U$ ~; g0 a4 [
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hr = m_pDisp->GetIDsOfNames ( + m# X [) h/ `, o, f/ b4 f8 \/ E! t IID_NULL, // reserved# K$ W4 u4 F& m' E" z. E, O2 t
&Name, // Array of names to get IDs for % |, w2 P5 J: T+ e 1, // # of names in the array ; s1 i) a7 n( \" p6 f LOCALE_SYSTEM_DEFAULT, // System locale# Q9 U. ^9 E, w3 i9 h% M/ ^
&pokeID); // Array of IDs to fill on output% `6 s& A: x" A& C. M2 g- t* o
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if (hr)7 y5 v* ?* d+ s/ L1 Y, o1 d D6 l
{ O; e' T( D) k MessageBox ("Get Poke Unsuccessful");; I: D/ `+ V w4 T/ u$ b- F; u) i
return; # P/ J/ C0 e. F4 f0 B1 U }* O+ b8 J; [: I2 `0 H2 O" A; a. E
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/**************************传递数据给extend**************************************/ $ w/ o$ n% x2 M* D( i* ^ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" L3 U) P3 F4 D) \5 b- j
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valueStr = SysAllocString((WCHAR *) L"1232");4 H L, z: r. `: i0 l
VariantInit(&pokeVariant[0]); G2 v! B; m: r$ c! U
pokeVariant[0].vt = VT_BSTR;! F% s3 O) c; `
pokeVariant[0].bstrVal = valueStr; 0 o$ O8 Z, A# b; O* x5 w 6 f" R! \: {) F) a5 C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % R8 E: l6 z. I7 C9 H+ X4 g VariantInit(&pokeVariant[1]); / H% v3 J" U) }; {; V5 b% g pokeVariant[1].vt = VT_BSTR; & l8 k/ T! L1 x/ [! M ^2 m- H pokeVariant[1].bstrVal = itemStr;' y; Z* I! A+ y$ e1 o9 N5 j1 h
, F5 `; c* S/ ^9 `# [" s topicStr = SysAllocString((WCHAR *) L"system");9 F6 [( E; j# Z5 {9 C
VariantInit(&pokeVariant[2]); 3 b7 M3 _" A! c: |) R6 Z pokeVariant[2].vt = VT_BSTR; 8 I) d* z, ^7 R% l: i9 ? h6 x pokeVariant[2].bstrVal = topicStr; . B4 {1 ?! k# u/ g( N8 D 1 u( s! D' r& Z# K" q9 U, ~0 @2 r// Set the DISPPARAMS structure that holds the variant.& u+ h! ]. g2 ]. v" F8 {
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dp.rgvarg = pokeVariant;0 Z- \$ U' \+ a0 h. z1 Q% ~* |8 A
dp.cArgs = 3;- k; @4 F7 t: h& m4 f
dp.rgdispidNamedArgs = NULL;1 ] q/ _7 H0 c' K
dp.cNamedArgs = 0;4 G3 R6 ~& [6 P
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// Call IDispatch::Invoke() 6 W6 h$ A" s1 F2 N& T( o $ E. ?3 j1 _5 ^* i: y hr = m_pDisp->Invoke( * J2 r3 V9 C0 l9 H. Y; m pokeID,1 R) R% d: Y' Y( f4 e2 \2 F
IID_NULL, - E' P1 n/ a$ r ^! N' }" n LOCALE_SYSTEM_DEFAULT,4 X9 @ L/ m: I7 h) }! l% j
DISPATCH_METHOD,0 M' W( t# G( o e1 \
&dp,$ m# @& L3 C4 ?6 K, }0 \3 Y
NULL, 6 Q- H, U- n9 C( ` &ei,5 S6 X5 q% p8 M5 y' ?. X' M
&uiErr);# |& v3 B( Y* Y
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SysFreeString(topicStr);, O0 x2 l% [; y" S
SysFreeString(itemStr); 5 \5 ]7 S4 W, P2 A2 N; J! q; L SysFreeString(valueStr); , m. E# D; y" b+ S/ ]" m4 m; b4 y0 G
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??? y8 k" T9 m7 J/ B
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????* p6 H% F6 x" h2 W2 c" b8 Y$ |
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0 Y' w: m$ i" h' Z1 A. G4 `2.这是request的程序 * P w$ Z9 W; f+ [" o. [// Request a value from Extend. a5 A! L0 {5 Z
// 5 g u- X2 e+ N3 @0 u8 v// Initialize the variant that will hold the BSTR. Set the variant's 4 T, Q u5 U* E* o// type flag to indicate the fact that this variant holds a BSTR. Place the/ Q9 O+ R. i; t; ?$ S
// BSTR into the variant structure.* |* Y w( a/ \3 d
; Z/ f3 j! c) e+ E, _8 D requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 }' y: U3 {) H 7 q0 ~1 W/ ]; \8 ]' `) I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; f% Y0 T- h- S& H, ^/ |' G
VariantInit(&requestVariant[0]); c) n# k- D$ S6 V' U; t# i5 P. h( G8 e
requestVariant[0].vt = VT_BSTR; ' a: L2 K6 ^+ q. J requestVariant[0].bstrVal = itemStr;, |% G1 F( D: B- l( r' f9 \1 D, F
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topicStr = SysAllocString((WCHAR *) L"system"); ' G: Y5 @* _2 B# K VariantInit(&requestVariant[1]); 9 n) r- m' x; U1 ] requestVariant[1].vt = VT_BSTR; 0 L8 E4 @9 i/ Q3 ~( t1 \7 i" N requestVariant[1].bstrVal = topicStr; / n# ^- V" j, T5 y/ s5 m+ f# j; e3 P* h4 O
// Set the DISPPARAMS structure that holds the variant. 7 o; ^$ V+ o7 A/ b5 v( G" N" n0 s2 I' R! p }% Z
dp2.rgvarg = requestVariant; $ n! R5 [' f7 { dp2.cArgs = 2; 6 ~+ G. }# h, g9 D+ g1 Q. Z0 J) m dp2.rgdispidNamedArgs = NULL;# l# K0 b. K7 V% _1 i8 T4 \ w
dp2.cNamedArgs = 0;" @' e2 x1 l# S- g
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var.vt = VT_EMPTY; ! V. @* v- X0 O5 j* R, `6 V) O$ c2 P' B1 P: u' [ _) M
// Call IDispatch::Invoke()0 M% J. z4 ?7 o, w2 T# `5 g/ W
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hr = m_pDisp->Invoke( ) t& [- V* G) R1 Y0 G* g- ~ Y requestID,+ a' e5 [1 F6 F7 c* m- I6 E6 h
IID_NULL, 5 o* G) x$ K* {; m7 l LOCALE_SYSTEM_DEFAULT, . ?: s' q: f P DISPATCH_METHOD," h# `% w3 r3 b6 ]
&dp2, : [, w! n# P+ l, Y$ z$ w7 ?; Q &var, % B* v7 d) h7 V3 z8 ?0 Q S &ei,% N Z1 N; {4 M! j6 ^8 Y
&uiErr); * \0 W( o- v" Q8 e8 r: r9 l9 b* i! V k% ?
SysFreeString(topicStr);; T+ D; ~& @, X; d$ u& a* z
SysFreeString(itemStr);# [& m- c# b! o4 e
请问该程序是获得extend里面的哪个值? - O8 h' }- P8 M1 P9 T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????