On 03/12/2018 08:05 PM, Mark Morgan Lloyd via Lazarus wrote:
On 12/03/18 17:45, José Mejuto via Lazarus wrote:
El 12/03/2018 a las 18:25, Mark Morgan Lloyd via Lazarus escribió:>

On the main form I've got (a tabbed notebook containing multiple > instances of) a TStringGrid. The OnSelection event invokes a modal form > (containing nothing of significant complexity) with OK and Cancel > buttons, and stripped down looks like this:
Just for testing the OnSelection is raised by mouse click ? If the answer is yes, try to click the cell and keep the mouse button pressed. If the form appears the grid is still waiting for a MOUSE_UP (thinking you are holding MOUSE_DOWN to perform a selection) and the modal form has its own queue, so MOUSE_UP never arrives.

Yes, the modal form appears while the mouse button is held down (for both GTK2 and Qt).

So, yes, seem that grid expects mouseup
Lazarus mailing list

Reply via email to