createform

**************************************** ********************Program project1; UsesForms,Unit1 in 'unit1. pa' {form1 },Unit2 in 'unit2. pa' {form2 },Unit3 in 'unit3. pa' {form3 }; {$ R *. Res} BeginApplication. initialize;Application. createform (tform1, form1 );Application. createform (tform2, form2 );Application. createform (tform3, form3 );Application. Run;En

Connection Library.Ii. Dynamic Connection Library callFirst, make a call declaration under implementation.ConstGdi32 = 'mydll. dll ';Function triple (n: integer): integer; stdcall; external gdi32 name 'tr ';Function Double (N: Integer): integer; stdcall; external gdi32 name 'do ';Function triple1 (n: integer): integer; stdcall; external gdi32 name 'trm ';Function Double1 (N: Integer): integer; stdcall; external gdi32 name 'dom ';In the future, the program can be used as a common function, for e

information 10) if the application closes or calls the tapplication. if the terminate () method is used, the terminate attribute is T. Ure} {tapplication method 1) createform method procedure createform (instanceclass: tcomponentclass; var reference); instanceclass specifies the class reference of the form to return the instance of the Form 2) handleexception is used to display the exception information in

Click on that button and the form will appear. If it's a lot of buttons, is that what we usually write? The code is as follows Copy Code private void Button3_Click (object sender, EventArgs e){Get the button name that you clickedString btnname = ((Button) sender). Name;if (Btnname = = "Button1"){Working with Forms}else if (btnname = "Button2"){Working with Forms}Else{Working with Forms}} This can only be done in a single, if more than 100 thousand will not

, which are often used for synchronization between threads. Technology Means. A Brief Introduction of mutex object: The mutex object uses the program that was created for the first time as the main program. In this way, it only checks whether the mutex object has been run by the main program to determine whether the program has been run, here we need to involve an API function: waitforsingleobject. The first parameter of this function is the mutex object used for detection. The first param

Ext. quicktips. INIT ();Ext. onready (function (){ VaR fields = ["Address", "company", "name", "personid"];VaR pagesize = 5; Function createform (){VaR newform = new Ext. Form. formpanel ({Frame: True,Border: false,Width: 400,Labelalign: 'right ',Defaults :{Xtype: 'textfield ',Width: 150},Items :[{Name: 'name ',Fieldlabel: 'name ',Allowblank: false,Blanktext: 'name cannot be blank'},{Name: 'address ',Fieldlabel: 'address ',Allowblank: false,Blanktext:

. When the program is running, enumerate existing windows in the system. If the program is found to be running, send a custom message to the window and end. A window is displayed when a running program receives a custom message. // Project file procviewpro. DPRProgram procviewpro; UsesForms, windows, messages, main in 'procview. pa' {form1 }; {$ R *. Res}{// This is automatic.BeginApplication. initialize;Application. Title: = 'System Process Monitoring ';Application.

: // if it is a CGI/ISAPI application, you need to create datamodule1. For the corresponding changes, see the description later. // open clientdataset and construct tdatasetpack, // disable clientdataset and database connection // return result tdatasetpack * tdatatableimpl: getemployeetable (void) {// for CGI/ISAPI, this sentence is required. // application-> createform (_ classid (tdatamodule1), datamodule1); datamodule1-> clientdataset1-> open ();

1. Create a mutex object Create a mutex object in project project1.dpr Program project1 Uses Windows, form, Frmmain in 'frmmain. pa' {mainform }; {$ R *. Res} VaR Happmutex: thandle; // declare the mutex variable Begin Happmutex: = createmutex (nil, false, 'projectname'); // create a mutually exclusive object projectname project name If (happmutex Begin // happmutex MessageBox ('the program is running. Close this window according to OK! ',' Prompt! ', Mb_ OK ); End Else Begin Application. inin

not (@ShowForm = nil) ThenShowForm (Application.handle, ' personnel Information management ')//Call out FormElseRaiselastwin32error;FinallyFreeLibrary (Libhandle); Unload the DLL.EndEnd============== END ==================second section DLL in the Delphi formFirst, the steps to implement form reuse using DLLs are:1. In the Integrated development environment (IDE), design a form according to your own needs;2. Write a function or procedure for the output. in this function or procedure, the design

application ' s main form (Form1); and Unit2, which are associated with Anoth Er form (Form2). The program makes a series of calls to an object named application, which are an instance of the Vcl.Forms.TApplication class defined in the Forms unit. (Every project has an automatically generated Application object.) The these calls invoke a Vcl.Forms.TApplication method named CreateForm. The first call to Create