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 V V& J. p% k) z+ Y/ C L# o6 u# W9 w3 M) RName = (WCHAR *) L"Poke"; & R" J( ^1 F& F8 `+ Q ! u4 `( q" Y6 w/ E hr = m_pDisp->GetIDsOfNames ( ! U/ a) ~; X! L$ _ IID_NULL, // reserved 4 k2 [6 e3 e+ T$ Q% X2 p- ?* G3 y &Name, // Array of names to get IDs for @, Z% V b! L7 S8 G1 \
1, // # of names in the array2 _1 h' F% C$ e; T& b
LOCALE_SYSTEM_DEFAULT, // System locale' {, v) J0 B* w$ X
&pokeID); // Array of IDs to fill on output2 r0 }2 }4 D2 r% R, o# b/ o0 w
1 J6 ]* ~" N" _6 t5 A; E if (hr)4 m. w$ M+ F8 `) C' |
{, a; E: m* | U, L& i. L
MessageBox ("Get Poke Unsuccessful");$ e) [6 J; p3 o* M6 g; c; t
return;4 i2 q9 H1 I& [9 K5 @0 E: w, v" V, i& O
} 7 N% a" X, X) ?. ~7 {" H, R $ a" C" x6 E- x: I: Y# p6 P/**************************传递数据给extend**************************************/9 O* S4 `1 D" ]% m" H
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 J/ K2 o+ [- c! x! W 9 i: F" m3 F/ h, ^
valueStr = SysAllocString((WCHAR *) L"1232");% |% \* [! T. q- J! N6 e3 e
VariantInit(&pokeVariant[0]); & M, _8 K: ~0 j" ]( R pokeVariant[0].vt = VT_BSTR; % _5 Y3 C: a4 q2 A7 r7 }& P pokeVariant[0].bstrVal = valueStr; : _( w0 s- C6 f/ {$ H, L7 o# R4 `) P8 Z8 E: K/ V
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) h/ F @8 Q' o4 k; `0 N VariantInit(&pokeVariant[1]); 0 [" G2 r. R! o* U9 H pokeVariant[1].vt = VT_BSTR; : e7 s: |* I' Q$ ]5 ?, {0 a+ l pokeVariant[1].bstrVal = itemStr;3 x/ ~% s( S- f7 n$ C* d
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topicStr = SysAllocString((WCHAR *) L"system");+ v+ s+ R) C S1 s1 D5 \9 ~ K
VariantInit(&pokeVariant[2]); % d [1 Y- I* M, X% F) Y
pokeVariant[2].vt = VT_BSTR;) ]/ {( H( p% X V; n
pokeVariant[2].bstrVal = topicStr; ; h! A+ p) S4 C* H. o P, w9 n% k1 _// Set the DISPPARAMS structure that holds the variant. ( P# i- L2 x! l " V0 \5 P5 x& _0 o1 c dp.rgvarg = pokeVariant; 4 ]/ ]/ t5 t+ T' u4 v( I+ q3 N dp.cArgs = 3; 5 w# l& J% Y. f- D7 z dp.rgdispidNamedArgs = NULL;. p* w3 }( L5 t1 ], p- k
dp.cNamedArgs = 0;* J* d" b7 z. o2 R6 h
- p/ P s8 t* o# h9 {" E// Call IDispatch::Invoke()7 W4 E6 x: h# s" n6 i8 V
5 G' M* p j1 F8 g hr = m_pDisp->Invoke( ~$ V0 M+ G* R4 V4 y6 T- J N
pokeID, ' q; b9 A) T& C6 d. U0 i IID_NULL, 2 K$ s/ Z( I- O$ ]3 K6 M LOCALE_SYSTEM_DEFAULT, : ~1 e/ m' Y. K3 D# a DISPATCH_METHOD,+ [; l9 W( w+ g" ~0 Q
&dp,# d X/ q2 U( q' B. }
NULL, 6 [9 d; V* L p6 ~( T &ei, . x+ j5 D" N$ h4 x/ w4 A &uiErr);6 e, O0 t' ^8 a( e. D! |2 w
2 |% b+ A# ^: ]; _# W4 g) Y6 ^7 z" m SysFreeString(topicStr); 6 E" F0 r8 T1 r' t SysFreeString(itemStr); 2 I* O( s4 m: H8 w: r/ E4 f1 } SysFreeString(valueStr); 4 r# _7 m" o q3 X) c( P+ B+ F: ?
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？？？) }. } k. z6 `7 a z K# A
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？？？？' x& s) x& s2 a
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7 v0 K; R7 y6 T2 s5 V( B8 ~" O2.这是request的程序 [6 K0 i9 L1 a/ H7 e F& w$ _* F// Request a value from Extend6 w" }) L' t) [! \
// ; |* I) a1 q0 O$ W. p0 z// Initialize the variant that will hold the BSTR. Set the variant's " l: m2 u- g: c- U( `5 A$ t9 y// type flag to indicate the fact that this variant holds a BSTR. Place the 4 U( b6 e$ \: `# O+ G2 M% J// BSTR into the variant structure. + @' K# D. n$ ~9 y/ x' ^& t/ | & y# F C* U. M- M$ R) U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ i, a* [5 ~0 ]' t. M
|' n$ X: j& \9 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: a1 {8 t( z& i8 j9 l
VariantInit(&requestVariant[0]); . _; i- X( f( w) c) @& L9 M8 r requestVariant[0].vt = VT_BSTR; * E, [+ c6 W* x( R' R" Z8 L& k requestVariant[0].bstrVal = itemStr; 6 j2 e! c! x- u$ \% }, _6 ] ' q5 j5 I4 l2 r) X* t topicStr = SysAllocString((WCHAR *) L"system"); # L n) b/ Y- L9 m VariantInit(&requestVariant[1]); : M& M8 q) e: E; V6 |. | requestVariant[1].vt = VT_BSTR; / [9 I2 I" G1 [* f7 W requestVariant[1].bstrVal = topicStr; 4 z" X |$ [* Q6 {$ o2 s/ ` Z& ]2 c5 q( u8 r// Set the DISPPARAMS structure that holds the variant.$ A8 H0 N+ L* S; X3 {- I
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dp2.rgvarg = requestVariant;: [, b2 H) O7 _# T/ u0 x
dp2.cArgs = 2; ) k( L8 n& U* D$ Y dp2.rgdispidNamedArgs = NULL;1 ~7 }# V Z4 }- w N" W
dp2.cNamedArgs = 0;6 m6 I3 x% K4 B- [% G
& h- H( [* m0 r var.vt = VT_EMPTY; a; t& V$ J3 I+ H9 F/ D
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// Call IDispatch::Invoke() 1 N. M8 {3 p: o; P ' L/ I$ V9 p1 h+ D hr = m_pDisp->Invoke(1 Z$ K$ g5 V) Q' c0 Q. n
requestID, : R: `5 v1 N4 x4 D" F- R t& e. L6 n IID_NULL, 9 I4 [: E) ^% k& w6 E2 O: B: ^ LOCALE_SYSTEM_DEFAULT, ) Z |: K4 r- N0 N/ m) w& y# L DISPATCH_METHOD, 8 |8 g0 Z( S! Q* \' [ &dp2, 3 X* I2 W1 C$ h y &var, 2 W& P; g2 M/ ^5 X" d' {9 ?- e& D, v9 S &ei, 9 R0 W* {8 D) r2 T &uiErr); 0 F# K" A; C: a8 d6 P . z e* t; ?) a9 m4 U SysFreeString(topicStr); 8 E1 R! P2 [3 Q/ a SysFreeString(itemStr); # ]* J- \, i* ^9 a4 S1 _请问该程序是获得extend里面的哪个值？: P# `+ _+ M* Y
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？？？？
发表于 2008-11-25 19:37:03
