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: : l1 }( [+ ]) R& ~Name = (WCHAR *) L"Poke"; . t/ z# {; S5 ?3 q. U- B/ @2 L# i $ ^" f9 l2 E, N# @/ d: D0 v
hr = m_pDisp->GetIDsOfNames (4 u. t7 t1 V2 I
IID_NULL, // reserved7 E, ^' \3 n3 g. W3 J* I
&Name, // Array of names to get IDs for / q: [4 h" R$ m$ _1 Q9 w 1, // # of names in the array ! r! f c0 I1 G) x+ M: L7 B4 E LOCALE_SYSTEM_DEFAULT, // System locale 1 @( ?! z! s: N7 V; T. O+ A% g &pokeID); // Array of IDs to fill on output 0 M8 u7 B9 Y- Z F( D + y4 U0 E- X# S! Q& p if (hr) & {! E" f5 ^; R& {+ u- K { % i" s+ `- O) L/ G5 [ MessageBox ("Get Poke Unsuccessful"); 1 w! L' i+ N& A+ w return;/ m$ l1 y- r E* H1 u5 n
}+ D( x7 V b' ~9 _
; b5 ]! I' M1 s) M* I. S5 ?/**************************传递数据给extend**************************************/: w% l) N# A/ X7 H( Z; n9 w% p8 R( e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, G3 z% C% u s8 [7 M9 a) W9 W
& `. c- r; R, {: D; A. _1 o valueStr = SysAllocString((WCHAR *) L"1232"); ) m) o2 r$ y- e- b1 x, o1 { VariantInit(&pokeVariant[0]); / x9 k6 M7 a" W k% j' U5 k4 Y0 _
pokeVariant[0].vt = VT_BSTR;! l8 I: M3 w+ f1 x; H/ S c' u! i
pokeVariant[0].bstrVal = valueStr;# t. W! q% I) T0 b" f1 Q9 {* S
* U* S& L6 \6 W F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 Z5 M/ f9 G3 r7 T/ P" i
VariantInit(&pokeVariant[1]); . n9 L6 f8 n! ^4 h5 f' U0 s
pokeVariant[1].vt = VT_BSTR;. A' ~, V, G) H/ \! t7 ~
pokeVariant[1].bstrVal = itemStr; 4 p5 T, K' m% k" j3 q+ V h4 b% r. X9 G
topicStr = SysAllocString((WCHAR *) L"system"); * w+ i3 [% W4 Y) f& y8 F s VariantInit(&pokeVariant[2]); 8 i. Z& M' l! T4 S* K$ B' W ]9 G: J
pokeVariant[2].vt = VT_BSTR;, h9 [7 S4 N3 s; X; M; u2 I
pokeVariant[2].bstrVal = topicStr;8 [; X4 S& s0 y, Z" {: |
6 P) y# }" {1 G: w0 d! _// Set the DISPPARAMS structure that holds the variant. 7 K. b; U4 }$ x9 y. G ) F' Y4 ^$ @, O dp.rgvarg = pokeVariant;+ _5 k4 c4 `5 Q( b7 v0 i2 u
dp.cArgs = 3; ' l* h; R# \* k dp.rgdispidNamedArgs = NULL; , J8 t- L% S* t dp.cNamedArgs = 0;* c8 y9 N u1 b- b$ {
8 S' C; U. Q8 z, |! B+ v4 e) { hr = m_pDisp->Invoke(. W6 }3 O* Z: [. s5 B4 N
pokeID, . v; l% W7 Y- x) O: A7 f IID_NULL,' h( m; i' K0 M7 p# b M9 j5 ]+ E. _
LOCALE_SYSTEM_DEFAULT,# H+ E& Z1 ^9 {) m4 V0 X
DISPATCH_METHOD,; j! }! n& o8 o. n9 {# i
&dp, ' E& \* Q( |6 V0 D NULL, + w2 S1 o2 M, z8 W# d( d' Q% j &ei,$ b7 ]% ?* o4 o- N5 k1 Y2 w
&uiErr);; m5 ^5 h! M$ B# N- j+ e# ^8 P: R
3 x( `* @5 b& E* w6 h) E' c R8 o SysFreeString(topicStr); 8 S4 X1 R4 r* n' F8 O3 r$ v SysFreeString(itemStr);6 x+ G) U1 M; @# @7 N5 R
SysFreeString(valueStr);- ~- I+ r* ~( j" H
0 B: {! B& A; 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??? : ]/ @. M- ]& b8 V1 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???? $ D) _7 j! F c( ?. h4 v ; B$ }1 A) Q- u1 B7 D" \) |, E, ]% r2 r& \6 F
2.这是request的程序 , R/ j( G+ B; `// Request a value from Extend9 C% E, R# s6 ~1 H3 r
// 2 [* Q0 F* L+ l. m$ ?// Initialize the variant that will hold the BSTR. Set the variant's; i5 l4 O* a/ r$ ~# z& Z( F
// type flag to indicate the fact that this variant holds a BSTR. Place the $ h$ j( q, |) q" S5 i) m// BSTR into the variant structure.+ q; L* r; c% |. {2 B