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： A+ ?9 X6 k5 F/ u- I2 q4 b( E0 |Name = (WCHAR *) L"Poke";2 E$ a6 u' D% l" K7 s& O$ X
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hr = m_pDisp->GetIDsOfNames (5 G9 {2 z7 `) E9 v/ `
IID_NULL, // reserved- M; k1 r5 Q `$ t
&Name, // Array of names to get IDs for 7 V0 {% F8 e6 _0 ]2 W 1, // # of names in the array- }" y1 _8 ~3 ~5 [. F. A
LOCALE_SYSTEM_DEFAULT, // System locale 9 i* D! s7 A6 t &pokeID); // Array of IDs to fill on output- R# M% ~+ V2 A8 h% b3 ^- Z- r. r. }
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if (hr)8 p6 o, u j$ Q
{( S- l+ G) _- s
MessageBox ("Get Poke Unsuccessful"); ( X4 `8 ?6 z- f6 M0 F1 ^ return;' {- a7 ^4 X o" f+ Z" k; x7 o
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/**************************传递数据给extend**************************************/ , D, G* c: o7 r% H; |9 ] pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( I8 H5 W2 W* z. n, G7 A
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valueStr = SysAllocString((WCHAR *) L"1232");9 }5 D2 Y! i5 M. \8 |9 f, }0 W8 {
VariantInit(&pokeVariant[0]); ) n; W$ X$ p* M' i- C. Z5 [' k
pokeVariant[0].vt = VT_BSTR;1 d- Y/ ~- z6 @# Z- w3 _* N: }) S1 ~
pokeVariant[0].bstrVal = valueStr; 9 Q- a2 [% [& s6 o5 ^( q3 N* t: A0 y y6 ~! C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 r+ o7 T, s$ K m" h
VariantInit(&pokeVariant[1]); # x; K& k2 ?( c
pokeVariant[1].vt = VT_BSTR; ; U0 p3 z! m2 y) h1 C pokeVariant[1].bstrVal = itemStr; 1 {7 R$ g9 \) t" h. T* `6 h2 x, q6 \, b a
topicStr = SysAllocString((WCHAR *) L"system");# N5 `8 x; X( b+ Z# K
VariantInit(&pokeVariant[2]); ) k+ I: X! B+ ^1 W0 ]- A$ b5 ~
pokeVariant[2].vt = VT_BSTR;7 W9 e" p# f! f) t2 b+ i
pokeVariant[2].bstrVal = topicStr; k p5 f. p" Z, }" F 0 S0 r' P8 `) K' J// Set the DISPPARAMS structure that holds the variant. 6 Y. G8 E' @+ A4 c- V9 s0 d " l) n, D* u) [- P4 a dp.rgvarg = pokeVariant;) u- Y2 N% w+ K
dp.cArgs = 3; ! q! }6 ^# F6 e5 D- ] dp.rgdispidNamedArgs = NULL; 9 ?( T: F8 A% O dp.cNamedArgs = 0; 1 }; C5 n" Z# q/ a) ] 2 C* L% e8 @" k2 {+ w. N// Call IDispatch::Invoke(); u! S) e( H: V1 ]( P) i
8 O: S% {' c1 X" n9 ?" C$ m hr = m_pDisp->Invoke( ) T& m; _" D3 G pokeID,: I$ s) ~9 b" y& L
IID_NULL,/ L4 F7 {$ T' Q' k9 a# i
LOCALE_SYSTEM_DEFAULT, ( ` x/ I3 ]% Z1 |' d DISPATCH_METHOD,$ o3 ?$ t+ z' f0 w+ }$ u
&dp,' [$ t3 a( T# K
NULL, ) J' k( ?- e; n& t. B. X &ei," R0 n) u& B" n4 ]
&uiErr); . u* u$ K* e. Z* M# f+ Q( G& Q 4 G. C: [8 g8 U% J2 W% X SysFreeString(topicStr);) p/ C5 v- c" w% C8 z5 _
SysFreeString(itemStr);7 R$ }+ X4 H1 x
SysFreeString(valueStr);/ o8 [- J( M8 k
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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？？？% d8 g2 A" R5 m3 x) O
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？？？？ $ f [# P' X0 c6 }8 g2 |) t7 H3 s# w- c7 P7 y) P8 o
: A3 G/ K7 v2 y- y7 K {0 u2.这是request的程序 4 b$ c* R: w+ J+ q+ P// Request a value from Extend& F* C$ d+ O a0 D6 D
// ; \# b0 O% _' [7 k( v" E// Initialize the variant that will hold the BSTR. Set the variant's& j I0 [+ t# }; G9 B
// type flag to indicate the fact that this variant holds a BSTR. Place the# z9 A/ ]* J! ?7 S& P
// BSTR into the variant structure.. R6 }' {+ G+ _) i2 f( r
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( w( G) T. e; W. F% Q' `) s A
发表于 2008-11-25 19:37:03
