Category: Delphi

Delphi is a well-known rapid application development tool (Rapid Application Development, RAD) under the Windows platform. Its predecessor was the “Borland Turbo Pascal” that was popular in the DOS era. The earliest version was developed by the American Borland company in 1995. The main creator is Anders Hejlsberg. After several years of development, this product has also been transferred to the Embarcadero company. Delphi is an integrated development environment (IDE). The core used is Object Pascal developed from the traditional Pascal language. It uses a graphical user interface as the development environment, and uses IDE, VCL tools and compilers to cooperate with the function of connecting to the database. An application development tool centered on object-oriented programming.

Delphi – Convert BMP to PNG failed

I have the following simple code to convert a clipboard image to bmp and then to png:

if Clipboard.HasFormat (CF_PICTURE) then
begin
bitmap := TBitmap.Create;
png := TPNGImage.Create;
try

October 5, 2021By Simo Delphi BMP, conversion, Delphi, failed, PNGLeave a Comment

Is there a simple way to transplant the Win32 application in Delphi 2009 to .NET?

We hope to migrate from Delphi 7.0 to Delphi 2009 in order to keep pace with modern IDEs and current technologies. Our target platform is .NET. What is the best way to achieve this goal? I will

October 5, 2021By Simo Delphi application, Delphi, Is there any, method, one, program, simple, Transplantation, will, Win, Win32Leave a Comment

Delphi – Is there a general E-unfailed exception: exception?

I want to know if there is an exception/error, which will cause your code to jump to an except block but will not be processed by the E: exception.

try
i := StrToInt(s);
{…do a lot more..

October 5, 2021By Simo Delphi abnormal, Capture, Delphi, General, no, presence, Whether it isLeave a Comment

Delphi – TListView column sort (sorted by the first two columns)

I use Delphi 2010 and TListView to list names and other data. The first two columns are Last Name&Name

Caption = Last Name
SubItems[0] = First Name

How to sort ListView by these two co

October 5, 2021By Simo Delphi Column, Delphi, front, press, SORT, TListView, twoLeave a Comment

Delphi XE: TDBMEMO text disappears

I have a rather strange problem, I can’t find the document. I have a Delphi program that uses Delphi’s built-in TDBMemo component, because the component needs to extract data from a field in the da