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2015-11-30 · What you write ('i can call it like') is not true and your real method does not look like that. It does not compile, and you can't set a procedure to True. ... Setting the OnClick procedure of a Delphi button at runtime. 1. Need to enable button when text is entered in the edit boxes. 3. Evaluate multiple boolean conditions exclusively, only ...
Get Price2019-9-26 · Using a specific type of the value for the key-value pair makes the code much more robust, as you can now only add TButton (or derived) objects to the key-value pair and can use the various methods of the extracted object. These are some snippets: / FormCreate kv := TKeyValue
2021-3-20 · Event handlers must be declared exactly how the event type is defined. An OnClick event is declared as a TNotifyEvent which takes parameters (Sender: TObject).You cannot break that rule. In your case, you can wrap your own procedure inside of the event handler, like so...
Get Price2019-2-20 · In current 32 bit Delphi, memory can (with a few exceptions) be seen as an array of maximum 2 gigabytes in size (2 31 bytes). What these bytes contain, depends on how the contents are interpreted, i.e. how they are used. The value of 97 can mean a byte of value 97, as well as the character 'a'. If you combine more than one byte, you can …
Get Price2012-9-11 · You can obtain a method, given its name, like this: function TForm1.MethodFromName(const Name: string): TNotifyEvent; begin TMethod(Result).Data := Self; TMethod(Result).Code := MethodAddress(Name); if TMethod(Result).Code=nil then raise Exception.CreateFmt('Count not find method …
Get Price2020-10-11 · I am beginner in Delphi. Presently using Delphi Berlin version. I am trying to invoke Delphi function/method from JavaScript. For example I want to open a new Delphi form on clicking on html button with additional data attribute.
Get Price2016-2-3 · // returns 100 if first button is pressed, 101 if second button is pressed, ... function MessageDlgCustom( const MsgHeader: string; const MsgText: string; const DlgType: TMsgDlgType; const Buttons: array of string; const DefaultButton: Integer = 0): TModalResult; var Task: TTaskDialog; I: Integer; DlgIcon: TTaskDialogIcon; Title: string; …
Get Price2014-10-4 · ToString: 'Delphi':'Supports JSON' JsonString: Delphi JsonValue: Supports JSON The Get method is overloaded, permitting you to reference a JSON pair by name. For example, imagine that you want to refer to the JSON pair created by the WriteJSONObjectsClick event handler, with a name of Delphi and a value of Supports …
Get Price2011-11-2 · Description. This example embeds a button to a TStringGrid cell using the Objects property. To test this example, add to the form a string grid object and a button. The FormCreate method creates a new instance of TButton, adds it on the form, and associates it to the first cell of the grid. Add the code from this method to the form's …
Get Price2019-2-20 · In current 32 bit Delphi, memory can (with a few exceptions) be seen ... (object) on which the method is called, and the Code pointer points to the code of the method. Using the type is like calling a plain procedural type: ... parameter (the button that was clicked). So the above sets the Caption of the form to the Caption of the button …
Get Price2005-5-14 · If the method Action from MyObject is called, the method DoIt from AnotherObject will be executed! The call of the method is delegated! Delegation is the technology on which the Delphi VCL is founded. The event-handler of a button does exactly the same. A button has a method-pointer called OnClick.
Get Price2020-11-2 · The variable adder contains an anonymous method that binds the value 20 to the variable y referenced in the anonymous method's code block. This binding persists even if the value goes out of scope. Anonymous Methods as Events. A motivation for using method references is to have a type that can contain a bound variables, also …
Get Price2016-2-3 · MessageDlg with custom button captions in Delphi FireMonkey. With VCL you can use CreateMessageDialog to generate a message dialog with custom button captions. With FMX CreateMessageDialog does not seem to exist anymore (since XE3). Is there a way to customize the button captions with FireMonkey other than rebuilding the …
Get Price2014-8-6 · These tasks are not specific to Delphi, but are required by any language that desires to interface with Java using the JNI. These examples show, from a Delphi perspective using Delphi code, how to interact with Java at runtime. After reading this document, you should have a good foundation to further explore Delphi and the Java …
Get Price2019-7-19 · Building macOS 64-bit Applications with Delphi 10.3.2. Regarding the merging of the MacOS Application Menu - previously we added our own Quit menu item which invoked the close method of the main form. This allowed us to detect the quit event prior to closing the application via the FormCloseQuery event and display a confirmation …
Get Price2008-12-5 · Using D7 Pro. I've Googled this til I need glasses. I'd like to have a MessageDlg, using Yes/No buttons, with the default button set to mrNo. After figuring out that the help file is describing the overloaded methods in QDialogs, instead of Dialogs, I arrived at this, which did set the
Get Price2003-7-9 · alleviate the Delphi limitations with the SB_GETPARTS message. To find the left of Panel3 get the right-most position of Panel2. This sits in the middle of the panel dividers, add 2 pixels to get the left of next panel - assuming no bevel. I don't know why Bill Gates thought anyone would want 256 panels, the array can be cut down to an ...
Get Price2020-3-12 · strategy they select. As a result, certain research conditions are nonconducive to using the Delphi - methodology. However, Rowe and Wright (2001) suggest that the Delphi method is effective when statistical method use is unsuitable, several experts are available, the alternative is simply to average the
Get Price2021-7-5 · If the same string exists both in 32-bit and 64-bit, only one row is added. This makes translation work easier. You can add any number of platform files. Just make sure that each EXE file you add is a result of the same Delphi project file. In addition to 32-bit, you might have Debug/Release EXEs or an EXE using different conditional compiling.
Get Price2017-9-21 · Delphi Component Building. Delphi has two kinds of users: end-users (application developers) and component writers. This session is especially intended for the latter group of Delphi programmers, who want to start building their own components for Delphi. While Delphi is a great tool for Client/Server and Rapid Application Building, I …
Get Price2000-10-30 · appropriate check button when the form is displayed eg. case ImportFormat of dfThisOne: ThisOne.Checked := True; ... The following is a bit more work but makes the selection apparent. 1 In the FormCreate method create a string list containing the captions of the radio buttons in the order of the TDafaFormat (enumerated type) which …
Get Price2003-7-9 · alleviate the Delphi limitations with the SB_GETPARTS message. To find the left of Panel3 get the right-most position of Panel2. This sits in the middle of the panel dividers, add 2 pixels to get the left of next panel - assuming no bevel. I don't know why Bill Gates thought anyone would want 256 panels, the array can be cut down to an ...
Get Price2017-9-21 · Start a new application, and drop a TActionList component on the Form. Right-click with the mouse on the ActionList1 component to get the Action List Editor. The Action List Editor shows the action categories, and for each action category the individual actions that are available for the current application. We can define new actions, or …
Get Price1998-7-16 · Compile the STRTBL16.rc file using the BRCC.exe compiler found in Delphi 1.0's bin directory, and compile STRTBL32.rc using the BRCC32.exe compiler found in Delphi 2.0's bin directory. We have taken into account the language that Windows is currently using at runtime. The method for getting this information differs under 16 and 32 bit …
Get Price2021-6-16 · Define the Look and Feel for a Button Component. After you place a new button on the FireMonkey Mobile Designer, you can specify some important properties for a selected component by using the Object Inspector.. Select a component (in this case, a button), and then browse and change the value of some properties as follows:
Get Price2005-5-14 · If the method Action from MyObject is called, the method DoIt from AnotherObject will be executed! The call of the method is delegated! Delegation is the technology on which the Delphi VCL is founded. The event-handler of a button does exactly the same. A button has a method-pointer called OnClick.
Get Price2000-8-30 · Just a small problem which I can't figure, using bitmaps to customise Bit Buttons in D3 (latest revision). I can load an existing 17x17 bitmap and it displays correctly as an image on the bit button. I then use Photoshop, for example, to slightly modify that bitmap - in the simplest
Get Price2008-12-5 · Using D7 Pro. I've Googled this til I need glasses. I'd like to have a MessageDlg, using Yes/No buttons, with the default button set to mrNo. After figuring out that the help file is describing the overloaded methods in QDialogs, instead of Dialogs, I arrived at this, which did set the
Get Price2020-6-2 · Character Types. On the 32-bit and 64-bit platforms: Char and WideChar are stored as an unsigned word variable, normally using UTF-16 or Unicode encoding.; AnsiChar type is stored as an unsigned byte. In Delphi 2007 and earlier, Char was represented as an AnsiChar.The character type used with Short Strings is always …
Get Price2010-1-9 · Parallel Port Control with Delphi. The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small printer symbol. This port is known as LPT port or printer port.
Get Price2001-2-5 · If I can't use this message safely, is there an 'official' method to know ... from another button to another control). Thanks a lot ! Niels Vanspauwe. Delphi Developer. ... > If you just use WinSight (that comes with Delphi), you can do the same
Get Price2006-8-23 · But Delphi implements a method of TStream called CopyFrom that allows you to copy the entire contents of one stream into another in one fell swoop. Here's an implementation of copying a file using the CopyFrom method: {===== Quick and dirty copying using the CopyFrom method of TStream.
Get PriceDownload This Delphi Tutorials. Download materials for this article (Delphi - Tutorials) Radio-Group.zip File size: 4 KB, File type: zip Total downloads: 1131, Upload date: February 02 - 2009. YES, I accept the Terms and Conditions and I acknowledge that I have reviewed and understood the agreement.
Get Price1998-7-16 · Compile the STRTBL16.rc file using the BRCC.exe compiler found in Delphi 1.0's bin directory, and compile STRTBL32.rc using the BRCC32.exe compiler found in Delphi 2.0's bin directory. We have taken into account the language that Windows is currently using at runtime. The method for getting this information differs under 16 and 32 bit …
Get Price2017-9-21 · Delphi Component Building. Delphi has two kinds of users: end-users (application developers) and component writers. This session is especially intended for the latter group of Delphi programmers, who want to start building their own components for Delphi. While Delphi is a great tool for Client/Server and Rapid Application Building, I …
Get Price2020-6-16 · Programming in Delphi Introduction. The Delphi language was formerly known as Object Pascal, and is an object-oriented version of the venerable Pascal language, combined by Borland with a Visual Basic-like RAD tool that lets you write fast GUI applications with no run-time, a very rich set of components (VCLs) that can be …
Get Price1998-7-16 · Compile the STRTBL16.rc file using the BRCC.exe compiler found in Delphi 1.0's bin directory, and compile STRTBL32.rc using the BRCC32.exe compiler found in Delphi 2.0's bin directory. We have taken into account the language that Windows is currently using at runtime. The method for getting this information differs under 16 and 32 bit …
Get Price2018-12-12 · Delphi offers an Open Tools API, to allow programmers to extent the functionality of the Delphi IDE itself. There are four kinds of Open Tools APIs: property editors, component editors, experts/wizards and version control systems.This paper will focus on Property and Component Editors, giving several examples of how to write our own Delphi …
Get Price2017-9-21 · Start a new application, and drop a TActionList component on the Form. Right-click with the mouse on the ActionList1 component to get the Action List Editor. The Action List Editor shows the action categories, and for each action category the individual actions that are available for the current application. We can define new actions, or …
Get Price2010-4-2 · Delphi tutorial: Using units for shared subroutines ... should you need it, say within the application the string has been typed into. The method is an extended version of the following. To follow the example, remember that the ascii for '0' (zero), in hex, is 30, and the ascii for 'o' (lower case oh), in hex, is 6F, and the ascii for '+', in ...
Get PriceThe thread's Execute method, activated by the Resume call, calls the two methods doing the work (shown in Listing 19.1). In the first, GrabHtml, the program connects to the HTTP server using a dynamically created IdHttp component and reads the HTML with the result of …
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