Hello Thomas,

Thank you very much for your time and effort.

Everything works great and is very instructive.

Kind regards,

Ben

Hello Thomas, I am in the process of studying GDI+. I am trying to read the metadata of a file, using this link as an example: https://docs.microsoft.com/en-us/windows/win32/gdiplus/-gdiplus-reading-and-writing-metadata-use This is my code so far. doDraw(_Graphics, "Reading and Writing Metadata...

Hallo Harrison and Thomas, Combining your replies I uninstalled vip 9.0.4 ( using the normal windows-uninstaller). So, I had a computer without a vip9 installation. That feels a little strange. But after that, installing build 9.0.5 succeeded. :D Lesson learned: keep a new build in the same director...

Hello Thomas, I am having troubles with installing build 905 After downloading and calling vip905ce.msi I get this message from the Windows Installer: (I translated the dutch text) There is already another version of this program installed. You can not proceed with the installation of this version. ...

Thank you Thomas,

All is working well,

But: list::getMemberIndex_nd() does not exist in my helpfile too.

Kind regards
Ben

Hello, I try to initialize an array2M, but get a strange result. Am I doiing something wrong? class facts - matrixDB linsys : array2M{real} := erroneous. sizeX : positive := erroneous. % 4 colums sizeY : positive := erroneous. % 3 rows class facts v : (real*). clauses v([2, 1, -1, 8]). v([-3, -1, 2,...

Loffy

For classical bytes you need unsigned8 as domain.

To pick up the unsigned8 values from the binary you could use the predicate:
binary::getIndexed_unsigned8/2->

Using a hexadecimal notation for unsigned8 values is possible.
for instance
X = 0xFF.

Kind regards

Ben

hello Loffy,

please try: vpi::processEvents immediate after write command
like: I had no troubles so far.

regards
Ben

Tick = time::getTickCount(), %unsigned64
bit::getUnsigned64bytes(Tick, Low, _High),
stdio::write(Low, "\n").

Kind regards
Ben

Loffy, The type unsigned uses 32 bits and an unsigned8 uses 8 bits Both types are just a sequence of bits. There is no principal difference. Visual Prolog uses the bitsize to define them. Visual Prolog has a class for bit-operations. The class uses unsigned. But I think you can use them for whatever...

Hello Loffy, Strings in Visual Prolog use unicode. These strings must be converted to unsigned8. Here is an example. I use it for communicating with a robot. Binary = unicodestring_to_bin("hallo "), stdio::write(Binary). predicates unicodestring_to_bin : (string) -> binary. clauses unicode...

Hello Lofty Here are two possibilities. Use the helpfile for information about class binary. predicates testing : (). clauses testing() :- % For manipulating bytes (in hexadecimal form) you need class binary Binary1 = binary::createAtomic(1), binary::setIndexed_unsigned8(Binary1, 0, 255), stdio::wri...

Hello Dave,

I had the same problem.
I found this solution: I made a customControl in an formwindow.
In this customControl you can make an KeyDownResponder.
The customControl must have focus.
And then the KeydownResponder will work perfectly.

Ben

Thank you Thomas,

I will study it further.

Kind regards

Ben

Hello, I am trying to use the log/package. In the logdemo program there is the following xml file. <LogConfigurations> <LogConfig name="ConfigName0"> <Appenders> </Appenders> </LogConfig> <LogConfig name="ConfigNameMC"> <Appenders> <Appender name="AppenderName2"> <LogLe...