How Delphi!

Category: Delphi General

  • How can I convert mm to inch in delphi

    To convert millimeters to inches in Delphi, you can use the following formula: inches = millimeters / 25.4 Here is an example of how you can use this formula in a Delphi function: function MillimetersToInches(millimeters: Double): Double; begin Result := millimeters / 25.4; end; You can then call this function with a value in millimeters,…

  • How can I learn Delphi programming language by myself

    To learn Delphi programming language by yourself, you can follow these steps: First, familiarize yourself with the basics of programming concepts such as variables, data types, control structures, and functions. Install Delphi on your computer. Delphi is a commercial software development platform and you will need to purchase a license to use it. Begin by…

  • How do I use TStringList in Delphi

    In Delphi, TStringList is a class that represents a list of strings. You can use a TStringList to store, sort, and manipulate a list of strings. To create a TStringList, you can use the following syntax var sl: TStringList; begin sl := TStringList.Create; You can then use the Add method to add strings to the…

  • How do I use TStream, Tmemorystream, Tstringstream in Delphi

    In Delphi, TStream is the base class for a set of classes that represent streams of data. A stream is a sequence of bytes that can be read from or written to. TStream provides a set of methods and properties that allow you to read and write data to a stream, as well as seek…

  • How do I use integer, single, float and int64 variables in Delphi

    In Delphi, you can use the following types to store integer values Byte an unsigned 8-bit integer, ranging from 0 to 255 ShortInt a signed 8-bit integer, ranging from -128 to 127 Word an unsigned 16-bit integer, ranging from 0 to 65,535 SmallInt a signed 16-bit integer, ranging from -32,768 to 32,767 LongWord an unsigned…

  • How do I use pointers in Delphi

    In Delphi, pointers are used to store the memory address of a variable. You can use pointers to manipulate the memory directly and to pass variables to procedures by reference. To declare a pointer variable, you can use the ^ operator, followed by the type of the variable that the pointer will reference. For example,…

  • How can I move a TModel3D to another TModel3D in Delphi FMX

    To move a TModel3D component to another TModel3D component in Delphi FMX, you can use the Position and RotationAngle properties of the TControl3D class, which is the base class for TModel3D. Here’s an example of how you can use these properties to move a model to a specific location relative to another model; Model1.Position.X =…

  • How can I calculate distance between 2 TModel3D in Delphi FMX

    To calculate the distance between two TModel3D components in Delphi FMX, you can use the DistanceTo method provided by the TModel3D class. Here’s an example of how you can use the DistanceTo method to calculate the distance between two models; distance = Model1.DistanceTo(Model2); The DistanceTo method calculates the distance between the centers of the bounding…

  • How can I calculate collisions between 2 TModel3D in Delphi FMX

    To calculate collisions between two TModel3D components in Delphi FMX, you can use the intersection methods provided by the TModel3D class. Here’s an example of how you can use the IntersectsBox method to check for a collision between two models; if Model1.IntersectsBox(Model2) then begin //collision detected end; The IntersectsBox method returns True if the bounding…

  • How can I load 3D model and move it in Delphi FMX

    To load a 3D model and move it in Delphi FMX, you can use the TModel3D component and the TControl3D class. Here’s an example of how you can do this Drag a TModel3D component from the FireMonkey 3D Components palette onto your form. In the Model3D property of the TModel3D component, specify the path to…