How do I use Opendialog in Delphi?

It is used to allow a user to select one or more files to open. It can be defined by dragging the open dialog icon from the Dialogs tab in Delphi, or by defining a TOpenDialog variable. openDialog := TOpenDialog. Create(self);…

How do you put a picture on a Delphi GUI?

At runtime, I add an image to the component by using: Image1….Select the TImage and, in the Object Inspector,

1. select the Picture property.
2. click the button to open the Picture Editor.
3. press the Load… button and select the image file.
4. Close the editor with the OK button.

How do you clear a TImage in Delphi?

In the absence of a direct command to clear the Picture property, you’ll need to assign a “nil” object to it. Doing so essentially blanks the image. Either code block will clear the picture from your TImage control.

How do I add photos to Delphi 7?

Select the TImage and, in the Object Inspector,

1. select the Picture property.
2. click the button to open the Picture Editor.
3. press the Load… button and select the image file.
4. Close the editor with the OK button.

What is canvas in Delphi?

Canvas is an area of form where we can draw shapes, lines and can fill colors on shapes. In Delphi, every form or graphic controls have Canvas property which provides TCanvas object that can be used to draw shapes.

How do you use ShellExecute in Delphi?

Execute and Run Applications and Files From Delphi Code

1. ShellExecute.
2. Run Notepad.
3. Open SomeText.txt With Notepad.
4. Display the Contents of the “DelphiDownload” Folder.
5. Execute a File According to Its Extension.
6. Open a Website or a *.
7. Send an Email With the Subject and the Message Body.

How do you draw a line in Delphi?

To draw a straight line on a canvas, use the LineTo method of the canvas. LineTo draws a line from the current pen position to the point you specify and makes the endpoint of the line the current position. The canvas draws the line using its pen.

What is ShellExecute command?

Custom Commands support the “ShellExecute” function, which lets you tell the Windows shell to perform an operation on a specified file. The nice thing about ShellExecute is that you don’t need to know what specific application is registered to handle a particular type of file.

What is Shellexecutew?

ShellExecute is the code equivalent of a user double clicking a file icon. It causes Windows to work out what application the document file is associated with, launch the program and have it load the document file.

How do I run ShellExecute?

To use ShellExecute or ShellExecuteEx, your application must specify the file or folder object that is to be acted on, and a verb that specifies the operation. For ShellExecute, assign these values to the appropriate parameters. For ShellExecuteEx, fill in the appropriate members of a SHELLEXECUTEINFO structure.

What is ShellExecute?

How do I open a GIF file in Delphi?

Delphi 7 simply doesn’t support GIF images. This has led to a number of third-party components for reading GIF files. However, as of Delphi 2006 (IIRC), the RTL/VCL can read GIF files as well. Just include GifImg in the uses clause. (In fact, as of Delphi 2009, the RTL/VCL can also read PNG files.

Does Delphi 7 support GIF images?

Delphi 7 does not support GIF images. For more info go through this link delphi.about.com/od/graphics/a/delphigif.htm @Bharat: Well, today Delphi does. But back in the Delphi 7 days, this was true. Show activity on this post. Use this TGIFImage. This is the original unit which was donated to CodeGear in 2006. It supports Delphi7.

Can RTL/VCL read GIF files?

However, as of Delphi 2006 (IIRC), the RTL/VCL can read GIF files as well. Just include GifImg in the uses clause. (In fact, as of Delphi 2009, the RTL/VCL can also read PNG files. And then there is really no need for GIF support, because the PNG file format is superior in almost every way.

Is it illegal to use extdlgs in a Delphi form?

It is illegal to use the wording from the Delphi Help.) You must add ExtDlgs to the uses section of the code if you do not add the component using the forms designer. Using the forms designer automatically adds the unit as appropriate. (Please provide links to articles/source code that show how to use this item.)