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Version: 2026

Declaring the functions of the Windows API
Syntax for declaring the functions of the Windows API
Instance (Function)
Returns the "system handle" (HINSTANCE) of the current program.
Value of constants for the Windows 32-bit API
Value of constants for the Windows 32-bit API
CallDLL32 (Function)
Runs a function found in an external DLL.
API (Function)
Runs a function found in an external DLL.
Using ODBC on HFSQL Classic via JDBC
The ODBC driver on HFSQL Classic is used to access an HFSQL Classic database from an external database software that supports ODBC accesses......
PageBorderVisible (Property)
The PageBorderVisible property is used to: determine if the page borders are displayed in a Diagram Editor control. show or hide the page borders in a Diagram Editor control....
AutoCorrect (Property)
The AutoCorrect property allows you to define a set of automatic corrections to be applied in a Word Processing control as the user types.
ModifierPanelVisible (Property)
The ModifierPanelVisible property is used to: determine if the "Modifier" panel is displayed in a Diagram Editor control. show or hide the "Modifier" panel in a Diagram Editor control....
Style sheet
A style sheet ("......
Project description: Advanced tab
The project description window allows you to configure various elements of your project......
CheckmarkVisible (Property)
The CheckmarkVisible property is used to: Determine whether a checkmark is displayed to the left of a row in a TreeView control. Show or hide a checkmark to the left of a row in a TreeView control....
COMObject (Type of variable)
The COMObject type is used to represent an interface of a COM object.
DisplayEvenIfNull (Property)
The DisplayEvenIfNull property is used to: Determine whether a row or column in a Pivot Table control is displayed even if it contains no value. Show or hide a row or column in a Pivot Table control if it does not contain any values....
MaxLeafPerRow (Property)
The MaxLeafPerRow property is used to get and change the maximum number of elements in a row in an Organization Chart control.
AutomaticReorganization (Property)
The AutomaticReorganization property is used to get and change the automatic reorganization mode for the tasks in a "Gantt Chart" column.
SelectionLength (Property)
The SelectionLength property is used to get and change the length of the selection made in a Word Processing control.
NavigationPaneVisible (Property)
The NavigationPaneVisible property is used to display the thumbnail pane in the PDF Reader control.
Timer (Function)
Periodically and automatically calls a WLanguage procedure.
8. If you are already familiar with WINDEV
Writing to the Free Technical Support
When you encounter a problem, try to isolate it and to reproduce it by using the minimum number of elements......
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