jon eskandi

Thank you. but that document doesn't match the "TOposBiometrics" Delphi component. i already get some sample using vb.net. i'll try to convert to delphi. thank you all 🙏🙏🙏

yes, it has activex SDK and i already import to delphi. OposBiometric Control, and it has a component on ActiveX Palette called "Toposbiometrics". The problem is, i don't have any document or reference about that "component" 🙏

i had "Digital Persona UAreU 4500 Fingerprint Reader" device, which it had ActiveX SDK in Delphi. TOposBiometrics.

i don't know how to apply it in Delphi. Initialize, Capture, Recording and Verify.

did someone had tried to make their app with this activex.

Please guidance. Thank you 🙏🙏🙏

it is true Remy Lebeau

if we use TEncoding.ASCII will result strange character on some platform. so probably best we use "Default".

good point Remy thank you.

On 2/25/2022 at 12:34 AM, jon eskandi said:

i've try your code and face the same problem. a white line printed for each loop. could you show the working code ? thank you

finally i found the problem is like Cristian Peta said before. just use byte

SND := TEncoding.ASCII.GetBytes(AValue);

should be

SND := bytesof(AValue);

that's it.

thank you all

i've try your code and face the same problem. a white line printed for each loop. could you show the working code ? thank you

thank you. i'll learned that 🙏

i'am struggling to print bitmap to bluetooth thermal printer (Zjiang).

here is the Printer Manual for Print NV Bitmap

[Name] Define NV bitmap [Format]

ASCIIcode FS q n [xL xH yL yHd1...dk]1...[xLxH yLyHd1...dk]n

Hexadecimal code 1C 71 n [xLxHyLyHd1...dk]1...[xLxHyLyHd1...dk]n

Decimal Code 28 113 n [xLxHyLyHd1...dk]1...[xLxHyLyHd1...dk]n

[Name] Print NV bitmap

[Format] ASCII code FS p n m

Hexadecimal code 1C 70 n m

Decimal Code 28 11 n m

i just confuse how to convert bitmap to TByte for this format : [xLxHyLyHd1...dk]1...[xLxHyLyHd1...dk]n

Please assisted 🙏🙏