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:9 m' F3 k: K! ?
Name = (WCHAR *) L"Poke"; " ]+ w u6 a# }! H) }* _ 4 o. R% W5 b) U' S8 n' f
hr = m_pDisp->GetIDsOfNames ( , b+ n( o f$ D) ~4 o$ ^0 L% _4 _ IID_NULL, // reserved - R$ [. |. s3 P A2 A+ L- _ &Name, // Array of names to get IDs for0 o1 {9 h6 R) P% T5 m
1, // # of names in the array7 P1 ^7 _: b# Z. x! n
LOCALE_SYSTEM_DEFAULT, // System locale 9 }# H. N; y6 A7 n! } &pokeID); // Array of IDs to fill on output$ T+ @ y% I7 n; `* N- z! Q
5 \- D0 y6 |0 ^/ A1 m8 T
if (hr)( _3 I+ u7 @% |5 I$ V
{. `* y, z$ o& A8 d
MessageBox ("Get Poke Unsuccessful");9 I4 ~" N! I( _# c2 t5 v( k8 O7 s
return; ' A) n0 o& Q6 v+ G' w2 C& { }. ~! z2 s% k, l- I
( @6 Z; h& X5 z. \) } o: R
/**************************传递数据给extend**************************************/( H* s) a4 C; K9 w, z% ], W, E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % f7 O) D: |$ \* s 3 S: F0 R; i* n valueStr = SysAllocString((WCHAR *) L"1232"); ' `4 l8 `+ \& ~! [: g$ t VariantInit(&pokeVariant[0]); ' O9 Z4 L' n* |; V M' b6 b
pokeVariant[0].vt = VT_BSTR; - J8 g. }6 ]* x( O& x pokeVariant[0].bstrVal = valueStr;" e0 _8 ]1 p1 v
0 f& }* C; \7 \1 u4 V1 T/ P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); d" J/ ^- I U4 V( G6 M1 A
VariantInit(&pokeVariant[1]); : I; ?9 z7 A2 Q/ Q: s! M) ]8 `
pokeVariant[1].vt = VT_BSTR;& N6 c4 f9 h8 h8 y& b2 K
pokeVariant[1].bstrVal = itemStr;" ]& O0 F0 ]$ f
$ K- c8 ~2 c# T* L0 S. U5 r
topicStr = SysAllocString((WCHAR *) L"system");6 r: R5 o& h$ b
VariantInit(&pokeVariant[2]); & ~; i; y! `7 R; m& w' E2 T( X/ ?+ Q
pokeVariant[2].vt = VT_BSTR; 3 Q; t' r* R6 U2 l6 l- ?$ i! u pokeVariant[2].bstrVal = topicStr; ' ~, E4 i; S$ x e 2 B! E! l) x7 P6 k# L// Set the DISPPARAMS structure that holds the variant.: c0 D( y6 e( a' Y/ P
4 Q# `/ y5 ]3 Y! l dp.rgvarg = pokeVariant; $ _% G7 U6 C+ } dp.cArgs = 3; ! `4 @* ?3 F6 l. Y( ^ dp.rgdispidNamedArgs = NULL;. _1 l" u4 E4 F4 R) Y
dp.cNamedArgs = 0;, L9 {# \/ w5 J% p
: { u+ E1 K3 ]! J$ l
// Call IDispatch::Invoke() ) M7 l( M+ |3 m1 x: s+ w( x' F; J+ e! B- N5 R9 t
hr = m_pDisp->Invoke( ! j; ]9 P- I9 [8 y- I7 | pokeID,5 e0 X4 p2 N$ o; R
IID_NULL, + n( o& F' w/ T4 R d9 L LOCALE_SYSTEM_DEFAULT,3 v& B2 ^6 b% i* I! R" x' c- s
DISPATCH_METHOD, " e: M+ d& P8 W) v &dp, - |& J7 n V. b3 ?. `; d NULL, % j/ K2 q$ q3 r Y' C9 I &ei, 8 G2 k! W e' `2 F7 u! v1 G &uiErr); ; {9 t2 Z1 d) R/ a9 P* @& t " m. K' P. b- m0 C, q8 G* s) p SysFreeString(topicStr); ( ?7 ~" c( K% M9 f SysFreeString(itemStr); o& ^- W" b9 s. x" x4 V
SysFreeString(valueStr);2 i6 b& M/ G% @; Z; j
" C+ s( R! b) d/ C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???" N0 D% j3 G9 E' w- ]
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????6 R$ v. g [3 K; w; h0 i/ ]/ ^9 R$ }
8 n; E5 C# H( |/ u
[7 x, @2 m& U- W
2.这是request的程序. `! G- }5 E6 D
// Request a value from Extend " d& ?6 E; E+ c/ m6 z7 T* R# L0 r//4 i* m; q5 L* i
// Initialize the variant that will hold the BSTR. Set the variant's - h: H) e+ g! D9 ^ w// type flag to indicate the fact that this variant holds a BSTR. Place the & x; W, t! V6 z// BSTR into the variant structure.% H6 G+ M# B# Z
# W b1 m5 X9 U! [8 e+ d0 S
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 b- |: F0 r7 J/ l" K; S, M( W
, J' h+ A4 ~4 o9 } a0 d: \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! i6 [3 s L7 m9 L# `: O
VariantInit(&requestVariant[0]); - _* H+ O: F J% m. K7 i requestVariant[0].vt = VT_BSTR;: _: F0 d0 J6 X
requestVariant[0].bstrVal = itemStr;8 l4 i# m# \9 @$ k) Y
! l$ s5 ^& j! J9 J1 E7 R topicStr = SysAllocString((WCHAR *) L"system"); 6 z1 [ r2 U& V- b0 {# p VariantInit(&requestVariant[1]); & L1 w' a8 t, N5 L* {
requestVariant[1].vt = VT_BSTR; ' R0 V Z+ i+ W) ~5 E8 b" r requestVariant[1].bstrVal = topicStr; 1 B& y* |0 J' U# F( l' n- ]/ { 3 F0 J: t" h6 V+ e* u+ B// Set the DISPPARAMS structure that holds the variant.2 Q9 J3 H9 x o% l
* j4 o- J, W* W6 c d: K! ] dp2.rgvarg = requestVariant;9 n+ ~2 d9 F7 t. }5 K' R
dp2.cArgs = 2;4 ~" B( V: O2 a: r
dp2.rgdispidNamedArgs = NULL; - a' m0 {; @) N u7 Q U0 h3 ?, K8 J dp2.cNamedArgs = 0; / X: O4 \9 W$ n: S$ m + O: N d7 D' d! u8 l( N; s$ G9 ~ var.vt = VT_EMPTY;' }# g4 w9 @( P! r; D; U1 K' F
4 g. c) b9 M7 W7 ^& C// Call IDispatch::Invoke() # @$ O# _6 b' @; A1 n% a * J, ?) l1 D. x2 N- `( w8 Y/ g$ ` hr = m_pDisp->Invoke( % h8 j( X0 l" {; b4 j requestID, 5 r$ D* x5 y$ V7 Q( W# d IID_NULL,0 R* }- ]6 T& }4 w
LOCALE_SYSTEM_DEFAULT, % K2 `1 w( T5 U DISPATCH_METHOD, . \/ @$ }- M o. \9 G. y &dp2, ; E/ u; b+ q1 W( U2 c" X) N &var, # Z2 B# F `/ o &ei, . O/ P' y3 H* z &uiErr); " B; k8 c. I; Q* j& N+ l+ `2 _# M; e' V T/ p8 `
SysFreeString(topicStr);5 M1 t+ W- J# q
SysFreeString(itemStr); ( w" B+ p7 a. X; q3 j请问该程序是获得extend里面的哪个值?0 x! Z4 S' g) C/ u9 h5 @
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????