Delphi FAQ list from Mike Shkolnik, Scalabium

Delphi tips and FAQs

[VCL] [Databases] [Reports, printing] [E-Mail, Internet, network] [Windows API] [Menu] [Tools API] [OLE, COM] [Files, drives] [Algorithms] [Conversions] [Multimedia] [Miscellaneous]

VCL

#0002	How can I draw the rotated text on canvas?
#0005	To change a font style (bold nodes) in standard TTreeview component
#0008	To disable a form movement
#0010	To add the horizontal scrollbar in listbox
#0012	To set a checkbox without OnClick event
#0013	To disable the on-fly tooltips in TTreeView
#0018	The form life cycle after creation
#0023	To get a line/column number that a memo/richtext cursor is on
#0025	To use a combobox instead inplace editor in TStringGrid
#0028	The offsets for TMemo
#0029	The quick filling a listbox with file names
#0034	To change alignment for TEdit
#0035	To make a form like system modal
#0036	To create a non-rectangular control
#0038	How to add a flat/hot track effect to components
#0057	To delete the row in TStringGrid component
#0065	To save/restore the component into BLOB-field
#0067	Access to some item of TRadioGroup component
#0085	To save/load the glyphs to/from external file
#0094	To assign a values to TStrings instead objects
#0102	To scroll a text in memo in run-time
#0146	Standard RichEdit component and URL highlighting
#0148	Autocomplete for edit/combobox
#0154	To exchange items in TListView
#0158	To change a font for TListView header
#0159	Flat header for TListView
#0160	Numeric editbox
#0163	To print the TTreeView and TListView
#0164	To display week numbers in TDateTimePicker

Databases

#0021	Database programming technology (Design Patterns)
#0043	To navigate by selected rows in DBGrid
#0062	To get the alias list, tables list etc
#0063	To copy (to dublicate) the dataset record
#0065	To save/restore the component into BLOB-field
#0079	To export a dataset into XML-file
#0081	To check if BDE exists
#0091	To play a wav-file from memory or BLOB-field
#0092	To switch a DBGrid in edit mode and set a cursor in some position
#0108	To generate the script for table creation
#0109	To generate the script for SELECT-statement
#0111	To create table in MS Access with DAO
#0141	To save file in BLOB and restore later
#0150	Use TClientDataset as memory dataset
#0168	To execute the query in MS Access

Reports, printing

#0017	Printer settings - page sizes and margins (part1)
#0019	To get a printer settings (part 2)
#0020	To set a printer settings
#0022	Printing on the TPrinter using default resident font (part 1)
#0026	The printer capabilities to print a graphics
#0032	To change the default printer in Windows
#0047	The list of jobs in the MS Windows print spooler
#0068	To use a resident font for printing (part 2)
#0083	To print/preview the MS Access's report
#0087	To send a command strings to printer
#0090	To print a bitmap on printer

E-mail, Internet, Network

#0037	How to get your local IP?
#0041	PC is connected to a network
#0049	To create the e-mail message in MS Outlook
#0080	To download the file from web
#0088	How do I find a MAC address?
#0095	To receive a modem list, which is installed in Win95/98
#0115	To create an email messaqe by MAPI
#0116	To download a file from internet using sockets
#0117	To select a recipient from addressbook
#0120	To retrieve a folder list from MS Outlook
#0121	To retrieve items (messages/tasks/etc) from any Outlook folder
#0123	To retrieve and save the attachments from MS Outlook message
#0126	HTTP/Url encoding
#0127	to print url/html file using IE browser
#0139	TWebBrowser and POST request
#0161	to read the proxy information

Windows API

#0001	How can I create a screenshot?
#0004	How can I receive a list of processes running on a system?
#0006	Delete a file into Recycle Bin
#0007	To detect a Windows version
#0009	To switch a keyboard layout
#0011	To add a some forms in Windows Task Manager
#0014	To get a system icons
#0016	Turn monitor power on/off
#0024	Turn the screensaver on/off
#0027	The current computer and user names
#0052	To get a sizes of some system controls
#0053	To set the clock (system datetime) in Windows
#0070	To read the environment string
#0082	To read the current code page of system
#0084	To load the icons from external dll/exe
#0086	To register the file extention and context menu
#0098	To retrieve a full path of module in DLL
#0105	To refresh a desktop
#0106	To read a path of system folder
#0112	To press a mouse button from code
#0131	To use extended Windows dialogs
#0133	To read native text of current locale
#0138	To change a color of standard TProgressbar
#0140	To define a custom icon for some folder
#0147	To show/hide clocks in tray
#0151	to display a Property dialog for file, folder or drive
#0156	alternative for TOpenDialog/TSaveDialog
#0157	select the folder dialog
#0166	to change the view style for OpenDialog/SaveDialog
#0167	to change the alignment for TButton
#0170	to add the chevron button for toolbar
#0171	to add chevron to TToolbar if some buttons are invisible (part 2)
#0172	crypt/decrypt the file in Crypt API
#0173	to calculate hash for string (CryptAPI)
#0174	to check if touch screen is available

Menu

#0030	To add item into system menu
#0033	To add bitmaps to menu items
#0060	To align a menu item to right
#0155	to show the system menu

Tools API

#0003	How can I check the Delphi/C++Builder version?
#0040	To read/write a property by name
#0054	To get a name of enum value
#0069	To receive a names of all registered components
#0070	To receive a names of all palettes, which was registered in IDE
#0073	To receive the list of published properties of component (part 1)
#0074	To receive the list of published properties of component (part 2)
#0103	To change a default font in IDE
#0104	To disable a new project creation
#0119	To register a component editor which will be activated by right mouse click in Delphi IDE

OLE, COM

#0049	To create the e-mail message in Outlook
#0051	To create a shell link/shortcut
#0083	print/preview the MS Access's report
#0086	To register the file extention and context menu
#0089	Description of Instancing and Threading Models in COM-servers
#0120	To retrieve a folder list from MS Outlook
#0128	To create an appointment in MS Outlook
#0142	To to read a sender address for MailItem (MS Outlook)
#0143	To check if OLE object is installed
#0144	Fast data transfer to MS Excel
#0145	Contact list in MS Outlook
#0149	language for installed MS Office
#0152	replace text/font in doc-file
#0153	open the password-protected xls-file and save without password
#0169	find the file name by ActiveX/OLE class name

Files, drives

#0031	To detect a drive type
#0046	To get a file datetime
#0050	How do I execute a program and have my code wait until it is finished?
#0051	To create a shell link/shortcut
#0055	To get the serial number of a disk
#0058	To accept the dropped files from Windows Explorer
#0066	The file in use or not
#0075	To map the network disk
#0114	To load a file list by some wildcard
#0118	To recieve a number of files in some folder by wildcard
#0122	To change a creation date/time for file on disk

Algorithms

#0039	To save/load a font information in INI/text-file
#0048	CRC32 calculation
#0056	To play with colors (dark/light)
#0093	Hash function for strings
#0113	Correct round of number
#0124	extended DayOfWeek function
#0125	second Wednesday of November
#0129	checksum by modulus 10
#0136	ELF hash algorithm
#0162	to extract the plain text from html string

Conversions

#0042	To convert the bitmap to Jpeg and vice versa
#0044	To convert a color string into HTML format
#0045	To convert color value into gray-scaled color value
#0132	To add leading zeros for numbers
#0137	To create a disabled bitmap
#0165	To convert the file size to string (a-la Explorer)

Multimedia

#0015	To open/close a CD-drive
#0078	To sound a beep for some action
#0091	To play a wav-file from memory or BLOB-field

Miscellaneous

#0056	To play with colors (dark/light)
#0059	To draw in area of the form caption
#0061	To retrieve the vertical refresh rate of the display
#0064	To draw a chart on some canvas
#0072	To change a line type for drawing
#0076	To change button caption in Open/SaveDialog
#0077	To get a mouse position
#0094	To assign a values to TStrings instead objects
#0096	To hide an application from TaskBar
#0097	To hide/show the Start button from Windows TaskBar
#0107	To add a custom control in standard dialog
#0110	To increase a performance of standard TTreeView/TListView
#0130	To use a procedure in dll from Delphi code
#0134	daylight saving time
#0135	To filter a mouse and keyboard

The all these tips was extracted from messages of our mailing list.
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[VCL] [Databases] [Reports, printing] [E-Mail, Internet, network] [Windows API] [Menu] [Tools API] [OLE, COM] [Files, drives] [Algorithms] [Conversions] [Multimedia] [Miscellaneous]

March 4, 2023