AutoIt DllCall到USB

我遇到了AutoIt的DLLCall問題。AutoIt DllCall到USB

我想用AutoIT控制Delcom USB指示燈LED燈。要做到這一點，我有一個.dll，其中包括以下功能：

DelcomGetDeviceCount：返回DELCOM USB設備的數量

DelcomGetNthDevice：對指定的設備類型的搜索，獲取設備名稱的字符串

DelcomOpenDevice ：需要設備名稱，並返回處理到USB設備

DelcomLEDControl：採用USB手柄，設置的LED

狀態這裏是a link到問題解決的文這些DLL函數的入口。

我想我的問題是沒有正確格式化設備名稱的指針，因爲我對DelcomGetNthDevice的調用返回0，即使我使用DelcomGetDeviceCount檢測到一個設備，也找不到設備。

我已經試過

Local $handleDLL = DLLOpen("C:\DelcomDLL.dll") 
Local $stString = DllStructCreate("wchar Name[512]") 

Local $devices = DllCall($handleDLL,"dword","DelcomGetDeviceCount","dword",0) 

Local $result = DllCall($handleDLL,"dword","DelcomGetNthDevice","dword",1,"dword",0,"ptr",DllStructGetPtr($stString)) 

Local $handleUSB = DllCall($handleDLL,"handle","DelcomOpenDevice","str",DllStructGetData($stString,"Name"),"dword",0) 
Local $result2 = DllCall($handleDLL,"dword","DelcomLEDControl","handle",$handleUSB[0],"dword",0,"dword",1) 


MsgBox(0,"# of Devices",$devices[0]) 
MsgBox(0,"Bool Found Device",$result[0]) 

DllClose($handleDLL)

和

Local $handleDLL = DLLOpen("C:\Users\b46020\Documents\Asher Project\DelcomDLL.dll") 
Local $stString 

Local $devices = DllCall($handleDLL,"dword","DelcomGetDeviceCount","dword",0) 

Local $result = DllCall($handleDLL,"dword","DelcomGetNthDevice","dword",1,"dword",0,"str*",$stString) 

Local $handleUSB = DllCall($handleDLL,"handle","DelcomOpenDevice","str*",$stString,"dword",0) 
Local $result2 = DllCall($handleDLL,"dword","DelcomLEDControl","handle",$handleUSB[0],"dword",0,"dword",1) 


MsgBox(0,"# of Devices",$devices[0]) 
MsgBox(0,"Bool Found Device",$result[0]) 

DllClose($handleDLL)

，但在每種情況下我轉了1個設備，但無法得到它的名字。

我將不勝感激您的幫助。

感謝，喬納森

來源

2013-06-25 MrInvertible

兩件事情出現錯誤的第一個例子，你混合WCHAR []和STR，這是非常不同的（儘管AutoIt的應該做的在這種情況下轉換爲你）。我需要一個指向頭文件的鏈接來檢查它，但是它看起來像是在傳遞一個指向字符串的指針，而不是指向字符串的指針數組。我很快寫了我認爲應該能夠給你所有設備的名稱，但我當然不能測試它：https://gist.github.com/MattDiesel/5862545 – Matt

是的，謝謝馬特，我改變了設備名稱以char []和它的工作。 – MrInvertible

很高興看到你得到它的工作。 – Matt

解決它：

Local $handleDLL = DllOpen("C:\DelcomDLL.dll") 

$strName = DllStructCreate("char Name[512]") 
$ptrName = DllStructGetPtr($strName) 

Local $result = DllCall($handleDLL, "dword", "DelcomGetNthDevice", "dword", 0, "dword", 0, "ptr", $ptrName) 
Local $handleUSB = DllCall($handleDLL, "handle", "DelcomOpenDevice", "str", DllStructGetData($strName, "Name"), "dword", 0) 
Local $result2 = DllCall($handleDLL, "dword", "DelcomLEDControl", "handle", $handleUSB[0], "dword", $color, "dword", $state) 

Local $closed = DllCall($handleDLL,"dword","DelcomCloseDevice","handle",$handleUSB[0]) 
DllClose($handleDLL)

來源

2013-06-26 16:26:07 MrInvertible

AutoIt DllCall到USB

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