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:0 f% d- K9 ^! q! ?: s2 k' M
Name = (WCHAR *) L"Poke"; ( X/ w' B3 s+ q3 l: J% ~6 y 4 a( n) W; V; {7 S
hr = m_pDisp->GetIDsOfNames ( 9 `. `, r+ U' b' c IID_NULL, // reserved ) t. |" H3 c( W2 h2 Q$ d- M7 k &Name, // Array of names to get IDs for ) x1 I, w5 J5 Z" v1 G' c 1, // # of names in the array3 C* a2 ~( m) \) N' e) h. w
LOCALE_SYSTEM_DEFAULT, // System locale / Q7 m2 v% k( D# ]% P6 K" w &pokeID); // Array of IDs to fill on output 1 \ r- Q, M6 N7 l, E8 i# g6 B 9 P/ K, d( y o+ a if (hr) ' l% d' Y; z8 y5 K# Y7 \ {3 a9 S. A9 Y: @4 }' b4 W+ I
MessageBox ("Get Poke Unsuccessful"); 4 s0 b2 b2 ^ |$ p return; ) u0 u. ]6 @( v$ L! N( d }1 k& ] v H" r- Z
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/**************************传递数据给extend**************************************/ : [8 H6 `1 a2 \! H8 a0 O1 S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / {+ h* [( A& [9 l( o' h - T& E! D% L& ` valueStr = SysAllocString((WCHAR *) L"1232");: V' B4 r/ H$ V. m, Q/ w
VariantInit(&pokeVariant[0]); # o5 ]& [9 Q/ m: R( G; ^/ I pokeVariant[0].vt = VT_BSTR; + o+ _+ I, U% s9 n& l/ s! M2 N pokeVariant[0].bstrVal = valueStr;1 ?! c: G5 j( r) \# ]
/ I. S' I/ U- A/ M3 u f a6 v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + r/ O# F3 s( @5 U& l9 }: A) E VariantInit(&pokeVariant[1]); 8 M# W+ _+ V2 Y4 J! x pokeVariant[1].vt = VT_BSTR;. O. t0 p% Q4 ?7 N6 B
pokeVariant[1].bstrVal = itemStr;1 G, {0 Z- a$ [4 ~
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topicStr = SysAllocString((WCHAR *) L"system"); q+ A2 P7 x# T VariantInit(&pokeVariant[2]); / Q/ [4 Z1 h* Q2 P# b w pokeVariant[2].vt = VT_BSTR;* H H$ y! G& J6 D$ s
pokeVariant[2].bstrVal = topicStr; 9 T. V- S4 G: U0 ], G9 R' b* V1 b" O: {+ q3 T
// Set the DISPPARAMS structure that holds the variant. 0 C& B" l: d C: W0 ] U9 f9 I* v! k" h3 ~
dp.rgvarg = pokeVariant; ! t J" E- n* u3 X5 i f dp.cArgs = 3;" m7 W5 H! X4 C" K1 A
dp.rgdispidNamedArgs = NULL;8 T. Z' j0 A8 |$ d" R
dp.cNamedArgs = 0; 1 X* r L. {) t8 P2 G! q 4 X: M5 z/ r. O2 L7 ?9 X0 R. \// Call IDispatch::Invoke() . d% u! N% U$ f% D/ V2 v/ H/ w+ X% B. j B! T, {
hr = m_pDisp->Invoke( " a* `7 i' @; R6 Z& y' E% v+ K pokeID,2 W `' u+ x" J% `# h2 ^* I( G" K
IID_NULL, c# R- p+ R* p2 a: B LOCALE_SYSTEM_DEFAULT, , i8 W2 n; U# k: f+ ]7 [0 x8 ~ DISPATCH_METHOD,( A' _) _# g, o
&dp,! n1 d% t8 E3 T; e1 H' J b2 U! d
NULL,& r. l5 A: |5 T# Q# X
&ei,! d( s$ K6 K6 Y. x' K
&uiErr);, i2 Z; L! K& ?2 [1 a3 e
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SysFreeString(topicStr); # {" D8 [2 F1 f: L SysFreeString(itemStr); 4 u( m6 b9 |% c7 } SysFreeString(valueStr); 6 E0 s/ K1 \$ W: }! I" i4 J + g1 W0 {5 w$ b/ r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???( \# l2 R/ i6 e: h& y5 b% v# k
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???? 0 f5 x# P, ?: m$ z& L+ K& ]8 m
7 `' s/ k: G. u; N: g' h2.这是request的程序 8 u/ ^+ }4 ^8 `$ h1 K& g! S// Request a value from Extend- K7 S! @0 I" F
// 1 o+ d) m7 x M9 J. `! M% E// Initialize the variant that will hold the BSTR. Set the variant's- |- x N7 x% {
// type flag to indicate the fact that this variant holds a BSTR. Place the " |( t) H1 Q# @ a7 q// BSTR into the variant structure.! Y6 r% v" P. I$ u1 K. k
/ s P) o8 v* q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 y1 O( l1 I, X$ t3 A" {# h
/ N4 M7 y7 f6 V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( j1 b* ~* v/ c! @4 q7 c' x VariantInit(&requestVariant[0]); 6 `& N, Y! f+ g1 W8 B
requestVariant[0].vt = VT_BSTR;3 e& _- D( M& _7 _ j0 d
requestVariant[0].bstrVal = itemStr;* h: k3 n# Z9 c' }4 s8 m