The Windows Form is a vital component in the development of any Windows-based application. Forms essentially provide the windows that make up a Windows application. In fact, the terms window and form are often used interchangeably. Forms allow the Visual Basic developer to create windows and layout controls (such as buttons, labels etc) in those forms to provide the application's user interface.
All objects in a Visual Basic application need a name so that they can be referenced in the code. When a new object is added to an application in Visual Studio it is assigned a default name which usually consists of the object type and a number. For example the first form object in an application is named ''Form1'', the second ''Form2'', and so on.
To change the name of a Form to something more meaningful simply click in any area of the Form in Visual Studio and change the ''(Name)'' value in the ''Properties'' panel.
== Changing the Form Title ==
Each form represents an application window. The text displayed in the title bar for each window should be changed to display something meaningful. This should
eiher be the name of application, or a description of the form's function (for example ''Order Entry'' or ''Sales Report'').
The value of the text to be displayed in the window title is defined by the form's ''Text'' property. To change the title of the form, therefore, select the ''Text'' value in the ''Properties'' panel and change it to a new value (for example, 'My Form Example'):
== Changing the Form Background Color ==
The background of any form may be changed either by specifying a new color, or by using a background image. The background color is controlled by the ''BackColor'' property of the form. By default this property is set to ''Control''. This specifies that the form should use a system defined default color. This color varies between different Windows versions, and changes when the user changes the overall color scheme of their Windows system.
* Color by name - Simply type in a color name into the ''BackColor'' value field (for example ''Red'', ''Yellow'', ''Cyan'' etc).
* Color by RGB value - Colors may be specified by entering the hexadecimal RGB values (for example #FFFFFF for white, #000000 for
while and so on). RGB values may also be specified using decimal values (for example 255,255,255 for white, 0,0,0 for black etc).
* Color from existing palette - Clicking on the down arrow in the ''BackColor'' value field will display a drop down menu. Lists are available for web safe colors, custom colors and system colors.
Once you have selected a new color the background color of your form will change to reflect the new setting
== Changing The Form Background Image ==
In addition to changing the background color of a form, it is also possible to specify a background image. This is specified using the form's ''BackgroundImage'' property in the ''Properties'' panel. When the 'BackgroundImage'' property is selected in the Property panel a button containing the label '...' appears. Click on this button to display the ''Select Resource'' window: [[Image: Exampl.jpg]]
Click on the ''Local Resource'' option button and click on ''Import'' to browse for an image. If you don't have any images of your own readily available try looking in for the ''Sample Pictures'' folder in ''My Documents''.
Once selected the image will be applied to the form background and any controls added will appear on top of the image. The following figure shows a form with a background image and a Button control:
== Configuring the Minimize, Maximize and Close Buttons ==
Each window in a Windows application has, by default, Minimize, Maximize and Close buttons in the top left hand corner of the title bar. In addition, clicking on the icon on the right hand side of the title bar drops down a control box containing the same options, plus options to resize the window.
These options make it easy for the user to perform tasks such as minimizing or maximizing a form. If, however, you do not want these controls to be available for a particular form they can be disabled from the ''Properties'' panel for the form in question. To disable the Maximize button set the ''MaximizeBox'' property to ''False''. Similarly, disable the ''Minimize'' button by setting the ''MinimizeBox'' property to False. In each case the button will still be visible, but will be disabled so the user cannot click on it.
To remove all controls, including the Control Box and the Minimize, Maximize and Close buttons set the ''ControlBox'' property to false. When set, the only content in the form's toolbar will be the form title.