Delphi

Using WM_COPYDATA.

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December 1, 1997
Author: Embarcadero USA Question and Answer Database FAQ1525D.txt Using WM_COPYDATA. Category :Windows API Platform :All Product :All 32 bit Question: How can I use the WM_COPYDATA message to pass information between 16-bit and 32-bit applications? Answer: The following example shows how to use the WM_COPYDATA message to send a record containing data between a 16-bit and 32-bit…
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Delphi

Preventing multiple application instances

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November 26, 1997
Author: Embarcadero USA Question and Answer Database FAQ1355D.txt Preventing multiple application instances Category :Windows API Platform :All Product :All 32 bit Question: How can I guarantee that only one instance of my program executes? Is it possible to…
Delphi

Save and load metafiles in a BLOB field without using DBImage

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November 25, 1997
Author: Embarcadero USA Question and Answer Database FAQ878D.txt Save and load metafiles in a BLOB field without using DBImage Category :VCL Platform :All Product :All 32 bit Question: How can I save and load metafiles in a BLOB field without using the DBImage component? Answer: The following example demonstrates saving metafile images to a database as they exist on the disk…
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Delphi

Changing the papersize of a print job.

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November 6, 1997
Author: Embarcadero USA Question and Answer Database FAQ603D.txt - Changing the papersize of a print job. Category :Printing Platform :All-32Bit Product : Question: How can I change the papersize of my print job? Answer: One way to change printer settings at…
Delphi

Hiding your application from the Windows Taskbar.

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November 5, 1997
Author: Embarcadero USA Question: How do I hide my application from the Windows Taskbar? Answer: It is possible to have your application running without an icon appearing in the task bar. Here’s how to do this: In Delphi go to the menu option Project -> View Source. Add the Windows unit to the uses clause. Add Application.ShowMainForm := False; to the line…
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Delphi

Implementing TCollection

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September 25, 1997
Author: Embarcadero USA Technical Information Database TI1647D.txt - Implementing TCollection Category :ActiveX/OLE/COM/ActiveForm Platform :All-32Bit Product :All32Bit, Description: This document is intended for those needing to descend from a class that…
Delphi

Passing Multidimensional Arrays as Parameters

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January 6, 1997
Author: Embarcadero USA Technical Information Database TI1477D.txt - Passing Multidimensional Arrays as Parameters Category :Object Pascal Platform :All-32Bit Product : Description: Passing an array to a procedure or function is straight forward and behaves as expected. However, passing a multi-dimensional array to a function or procedure is not handled in the same way. Consider…
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