Delphi

Detecting tab key press

Author: Embarcadero USA Question and Answer Database FAQ2060D.txt Detecting tab key press Category :VCL Platform :All Product :All 32 bit Question: Since the KeyPress and the KeyDown events do not get called for the tab key, how do I trap the tab key at the form level? Answer: At form level, the tab key is generally handled by Windows. The following example demonstrates…
Read more
Delphi

Extracting Icons

Author: Embarcadero USA Question and Answer Database FAQ1778D.txt Extracting Icons Category :Windows API Platform :All Product :All 32 bit Question: How can I use the undocumented ShellAPI function ExtractIconEx() to extract the small and large icons from a…
Delphi

Using WM_COPYDATA.

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…
Delphi

Does Delphi have an equivalent to the Visual Basic SendKeys function?

Author: Embarcadero USA Question and Answer Database FAQ1500D.txt Does Delphi have an equivalent to the Visual Basic SendKeys function? Category :VCL Platform :All Product :All 32 bit Question: Does Delphi have an equivalent to the Visual Basic SendKeys function? Answer: The following example demonstrates procedures that provide the capibility of sending keystrokes to any window…
Read more
Delphi

Preventing multiple application instances

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

Implementing TCollection

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 manages an array of lightweight persistent objects of the same type. The class that best accomplishes this is TCollection…
Read more
C++

Converting an AnsiString to Char*

Author: Embarcadero USA Question and Answer Database FAQ1360C.txt Converting an AnsiString to Char* Category :VCL Platform :All Product :C++Builder 1.x Question: I am trying to convert a String to char* but keep receiving the error: "Cannot cast…
C++

How do I make a ComboBox Read-Only?

Author: Embarcadero USA Question and Answer Database FAQ971C.txt How do I make a ComboBox Read-Only? Category :VCL Platform :All Product :C++Builder 1.x Question: How do I make a ComboBox Read-Only? Answer: The same effect can be achieved by…
C++

Showing a splash screen at startup

Author: Embarcadero USA Question and Answer Database FAQ533C.txt Showing a splash screen at startup Category :VCL Platform :All Product :C++Builder 1.x Question: Where is the best place to open a splash screen on program start up? Answer: The best place to open a splash screen is in the project source file after initializing the Application object and before running the…
Read more