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  • 大小: 1.48MB
    文件類型: .rar
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    發布日期: 2023-11-07
  • 語言: 其他
  • 標簽: DLL??

資源簡介

本例程是在CVI自帶的simple添加調用mydll.dll的函數MyDLLCdeclFunction() 網上和CVI的例程很少,一般為調用LIB實例,但很多dll都是以*.dll提供的,故本例程很實用。 本例程主要是調用了三個Windows API函數LoadLibrary(),GetProcAddress(),FreeLibrary()

資源截圖

代碼片段和文件信息 

/*?A?simple?example?of?using?a?uir?in?a?dll?created?both?in?cvi?or?an
?*?external?compiler.
?*/

/*?Include?files?needed?to?compile?DLL?*/
#include?
#include??????/*?needed?if?linking?DLL?in?external?compiler;?harmless?otherwise?*/
#include?
#include?“dlluir.h“

static?long?int?status?=?0;
static?int?lightVal?=?0?panelHandle;

BOOL?__stdcall?DllMain?（HINSTANCE?hinstDLL?DWORD?fdwReason?LPVOID?lpvReserved）
{
?????/*?The?DllMain?function?is?called?when?ever?the?DLL?is?loaded?and????*/
?????/*?unloaded.?Place?Initialization?code?for?the?DLL?in?this?function.?*/
????if?（fdwReason?==?DLL_PROCESS_ATTACH）?{
????????/*?Place?any?initialization?which?needs?to?be?done?when?the?DLL?*/
????????/*?is?loaded?here.?*/
????????if?（InitCVIRTE?（hinstDLL?0?0）?==?0）???????/*?needed?if?linking?DLL?in?external?compiler;?harmless?otherwise?*/
????????????return?0;???/*?out?of?memory?*/
????????status?=?100;
????}?else?if?（fdwReason?==?DLL_PROCESS_DETACH）?{
????????/*?Place?any?clean-up?which?needs?to?be?done?when?the?DLL?*/
????????/*?is?unloaded?here.?*/
????????CloseCVIRTE?（）;?????/*?needed?if?linking?DLL?in?external?compiler;?harmless?otherwise?*/
????}
????/*?return?FALSE?to?abort?if?initialization?fails?*/
????return?TRUE;
}

BOOL?__stdcall?DllEntryPoint?（HINSTANCE?hinstDLL?DWORD?fdwReason?LPVOID?lpvReserved）
{
????return?DllMain（hinstDLL?fdwReason?lpvReserved）;
}

void?DLLEXPORT?RunDllUI?（void）
{
????/*?Call?this?function?from?the?appropriate?place?in?your?code?*/
????/*?to?load?and?display?startup?panels.????????????????????????*/

????panelHandle?=?LoadPanelEx?（0?“dlluir.uir“?PANEL?__CVIUserHInst）;
????DisplayPanel?（panelHandle）;
????RunUserInterface?（）;
}

int?CVICALLBACK?CloseUICallback?（int?panel?int?control?int?event
????????void?*callbackData?int?eventData1?int?eventData2）
{
????switch?（event）?{
????????case?EVENT_COMMIT:
????????????HidePanel（panelHandle）;
????????????DiscardPanel（panelHandle）;
????????????QuitUserInterface（0）;
????????????break;
????}
????return?0;
}

int?CVICALLBACK?LightSwitchCallback?（int?panel?int?control?int?event
????????void?*callbackData?int?eventData1?int?eventData2）
{
????switch?（event）?{
????????case?EVENT_COMMIT:
????????????GetCtrlVal?（panelHandle?PANEL_BINARYSWITCH?&lightVal）;
????????????SetCtrlVal?（panelHandle?PANEL_LED?lightVal）;
????????????break;
????}
????return?0;
}

long?int?DLLEXPORT?__stdcall?MyDLLStdcallFunction（LPSTR?buffer）
{
?????MessageBox（NULL?buffer?“DLL?MessageBox?called?from?MyDLLStdcallFunction“?MB_OK）;
?????status?=?200;
?????return??（status）;
}


long?int?DLLEXPORT?MyDLLCdeclFunction（LPSTR?buffer）
{
?????MessageBox（NULL?buffer?“DLL?MessageBox?called?from?MyDLLCdeclFunction“?MB_OK）;
?????status?=?300;
?????return??（status）;
}


?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????.......????????57??2008-05-27?19:53??cvidlldemo\cvibuild.mydll\dependencies.bri

????.......???????928??2008-05-27?19:53??cvidlldemo\cvibuild.mydll\resources.res

????.......??????1127??2011-08-28?22:07??cvidlldemo\cvibuild.mydll\build.ini

????.......???????204??2011-08-28?22:08??cvidlldemo\cvibuild.simple\dependencies.bri

????.......????298036??2011-08-28?22:08??cvidlldemo\cvibuild.simple\resources.res

????.......???2868586??2011-08-28?22:08??cvidlldemo\cvibuild.simple\simple.nidobj

????.......??????7637??2011-08-28?22:09??cvidlldemo\cvibuild.simple\build.ini

????.......??????1361??2006-11-06?10:00??cvidlldemo\dlluir.h

????.......??????2216??2006-11-06?10:00??cvidlldemo\dlluir.uir

????.......??????2869??2006-11-06?10:00??cvidlldemo\mydll.c

????.......???1213417??2008-05-27?19:53??cvidlldemo\mydll.cdb

????.......??????2684??2008-05-27?19:16??cvidlldemo\mydll.cws

????.......????221184??2008-05-27?19:53??cvidlldemo\mydll.dll

????.......???????339??2006-11-06?10:00??cvidlldemo\mydll.h

????.......??????3368??2008-05-27?19:53??cvidlldemo\mydll.lib

????.......??????3724??2006-11-06?10:00??cvidlldemo\mydll.prj

????.......????????76??2006-11-06?10:00??cvidlldemo\readme.txt

????.......??????3890??2008-05-27?19:39??cvidlldemo\simple.c

????.......??????4773??2008-05-27?23:25??cvidlldemo\simple.cws

????.......??????3899??2008-05-27?19:32??cvidlldemo\simple.prj

????.......????557056??2011-08-28?22:08??cvidlldemo\SIMPLE.exe

????.......???3633568??2011-08-28?22:08??cvidlldemo\SIMPLE.cdb

????.......??????3207??2011-08-28?21:12??LabWindowsCVI調用DLL實用例程?.txt

?????目錄??????????0??2008-05-27?23:20??cvidlldemo\cvibuild.mydll

?????目錄??????????0??2008-05-27?23:25??cvidlldemo\cvibuild.simple

?????目錄??????????0??2008-05-27?23:26??cvidlldemo

-----------?---------??----------?-----??----

??????????????8834206????????????????????26


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