SftTree/DLL 7.5 - Tree Control

Dropdown/Filter Buttons

Header and footer dropdown buttons and header and footer filter buttons are optional components shown as part of column headers and footers. They can be enabled using the SFTTREE_COLUMN_EX structure members styleTitle and styleFooterTitle.

The images cannot be customized.

These buttons are only visible when the user's mouse cursor is located over the header or footer.

Dropdown Button	Filter Button

When the button is clicked the SFTTREEN_LBUTTONDOWN_COLUMN_HEADERDD or SFTTREEN_LBUTTONDOWN_COLUMN_HEADERDD notifications can be handled by the application to implement custom behavior. A popup menu or dialog could be displayed. The ContextMenu sample demonstrates how to implement a menu.

Additional events may occur depending on which mouse button is clicked or double clicked:

• SFTTREEN_LBUTTONDOWN_COLUMN_HEADERDD
• SFTTREEN_LBUTTONDBLCLK_COLUMN_HEADERDD
• SFTTREEN_MBUTTONDOWN_COLUMN_HEADERDD
• SFTTREEN_MBUTTONDBLCLK_COLUMN_HEADERDD
• SFTTREEN_RBUTTONDOWN_COLUMN_HEADERDD
• SFTTREEN_RBUTTONDBLCLK_COLUMN_HEADERDD
• SFTTREEN_LBUTTONDOWN_COLUMN_FOOTERDD
• SFTTREEN_LBUTTONDBLCLK_COLUMN_FOOTERDD
• SFTTREEN_MBUTTONDOWN_COLUMN_FOOTERDD
• SFTTREEN_MBUTTONDBLCLK_COLUMN_FOOTERDD
• SFTTREEN_RBUTTONDOWN_COLUMN_FOOTERDD
• SFTTREEN_RBUTTONDBLCLK_COLUMN_FOOTERDD