2 posts in this topic
I have a script , during compilation and test execution, it worked perfectly but sometimes I am getting error as "Variable used without being declared."
I understood somewhere in the branching logic this is happening.
But not able to find it exactly.
As I am using multiple include statements.the line number is also not giving accurately.
Can anyone suggest what is the approach to resolve this?
Im trying to read the output from CMD using Dllcall, here is my code:
#include <WinAPI.au3> #include <array.au3> Global Const $STD_OUTPUT_HANDLE = -11 Global Const $_CONSOLE_SCREEN_BUFFER_INFO = _ "struct;int dwSizeX;" & _ "short dwSizeY;" & _ "short dwCursorPositionX;" & _ "short dwCursorPositionY;" & _ "short wAttributes;" & _ "short Left;" & _ "short Top;" & _ "short Right;" & _ "short Bottom;" & _ "short dwMaximumWindowSizeX;" & _ "short dwMaximumWindowSizeY;endstruct" $pCmd = Run( "cmd.exe" ) Sleep(1000) $hCmd = WinGetHandle("") ConsoleWrite('handle:' & $hCmd & @CRLF) $aRet = DllCall("kernel32.dll", "int", "AttachConsole", "dword", $pCmd) ;_ArrayDisplay($aRet) If $aRet <> 0 Then $vHandle_data='' $vHandle='' $vHandle_data = DllStructCreate($_CONSOLE_SCREEN_BUFFER_INFO) ; Screen Buffer structure $aRet1 = DllCall("kernel32.dll", "hwnd", "GetStdHandle", "dword", $STD_OUTPUT_HANDLE) if not @error Then $vHandle = $aRet1 $aRet = DllCall("kernel32.dll", "int", "GetConsoleScreenBufferInfo", "hwnd", $vHandle, _ "ptr", $vHandle_data) MsgBox(0, '1',DllStructGetData($vHandle_data, 'dwSizeX') & _WinAPI_GetLastErrorMessage()) EndIf It did not work, i got the message 'The handle is invalid'. Please help?
Thank you in advance!
Is this possible:
Executing a function from an include, but taking the function name from a gui input and then executing that function using the include:
#include <Something.au3> ;input reads "Tree" $functionName = GuiCtrlRead($input1) $functionName(1) And the include is gonna have
Func Tree($x) If $x = 1 Then $this = "text" MsgBox(0,$this,"whatever") EndFunc is it possible?
I compiled a script I made that takes a command line parameter (the version of a .msi installer) when launched. The script was compiled with the /console option. The script (.au3) works fine but the executable returns the following error:
Error: array variable has incorrect number of subscripts or subscript dimension range exceeded
here's another UDF for the serial port. It is very similar to CommAPI using kernel32.dll, but all code is packed into a single file without any dependencies, not even using WinAPI.au3. It differs from existing UDF that it doesn't allow a timeout when reading, instead it always returns immediately, either with the requested amount ob bytes read or with a failure status. And of course there is a function provided to query the amount of available bytes in the receive buffer. The reason behind this design decision: You can do 1000 other things in the main loop while checking from time to time if enough data bytes arrived. There's no point to block the program waiting for the serial port.
It is currently a work-in-progress, as I didn't test all functions yet. The code was developed and tested on Windows 7 64 bit. The ComUDF-Tests.au3 shows some tests and basic usage of the UDF. Maybe there's no reason to use this UDF, given the existence of the others UDFs, but I did it to get to know DllCall better - I use structs no only to pass but also to get data back (I don't use the array returned by DllCall to read that data, unless required). You're welcome to test it on older and newer Windows versions.
Here's a list of the implemented functions:
; _ComListPorts ; _ComOpenPort ; _ComSetTimeouts ; _ComClosePort ; ; _ComSetBreak ; _ComClearBreak ; _ComGetInputcount ; _ComGetOutputcount ; _ComClearOutputBuffer ; _ComClearInputBuffer ; ; _ComSendByte ; _ComReadByte ; _ComSendBinary ; _ComReadBinary ; ; _ComSendChar ; _ComReadChar ; _ComSendCharArray ; _ComReadCharArray ; _ComSendString ; _ComReadString ; ; __ComClearCommError ; __PurgeComm Maze