Adequate treatment of signal from widget (float, float, float)

[nomiz]

Dear all,

For my first program, I am using the amazing MathGL library to paint graphs and trajectories. The incorporated QMathGL class is extended from QWidget, and I have added this to my MainWindow.

It sends a signal void mouseClick(float,float,float). I am now capturing this signal from the QMathGL ui->qmgl with QWidget ui->vehicles_tab using

connect(ui->qmgl, SIGNAL(mouseClick(float, float, float)), ui->vehicles_tab, SLOT(on_graph_clicked(float, float, float)));

connect(ui->qmgl, SIGNAL(mouseClick(float, float, float)), ui->vehicles_tab, SLOT(on_graph_clicked(float, float, float)));

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But within the class definition of ui->vehicles_tab i have defined slot on_graph_clicked as

void VehiclesTab::on_graph_clicked(float x,float y,float z)

void VehiclesTab::on_graph_clicked(float x,float y,float z)

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in order to handle the value of the floats (x, y and z).

This seems to work, but i still get the warning:
QMetaObject::connectSlotsByName: No matching signal for on_graph_clicked(float,float,float)

What am I doing wrong?

Thank you in advance!

[DanH]

Actually, if you're getting that message it's not working -- the connect() isn't happening. ALWAYS test (eq, with an assert) the result of a connect to make sure it succeeds.

Are you sure your slot is declared as a slot?