Command Identifier

Each button has a command identifier associated with it. When the user selects a button, the toolbar sends the parent window a WM_COMMAND message that includes the command identifier of the button. The parent window examines the command identifier and carries out the command associated with the button.

Software for developers

Delphi Components
.Net Components
Software for Android Developers

More information resources

MegaDetailed.Net
Unix Manual Pages
Delphi Examples