Regression - TStringGrid event OnUserCheckboxBitmap shows no check boxes

Original Reporter info from Mantis: zoran

• Reporter name: Zoran Vučenović

Description:

When TStringGrid.OnUserCheckboxBitmap is assigned, no check box is shown at all, just blank fields in grid.

Steps to reproduce:

I am uploading the test application which shows the problem.

Additional information:

This is regression from Lazarus 1.8.

I tracked the problem in trunk and this is what I found out:

- since rev. 57746 (30. april 2018) OnUserCheckboxBitmap does not work correctly. However, then the CheckBoxes didn't disappear fully, but the grid shows default CheckBox bitmaps, ignoring the event.

- since rev. 57927 (13. may 2018) CheckBoxes disappear totally!

Mantis conversion info:

• Mantis ID: 35085
• Build: 60420
• Version: 2.0.2
• Monitored by: » @onpok (Ondrej Pokorny)