x,y) corrdinates
within window and simulate a button press or release event.
Because the mouse pointer needs to be warped to the target
location, use of this function outside of test programs that
run in their own virtual windowing system (e.g. Xvfb) is not
recommended.
Also, gtkTestSimulateButton() is a fairly low level function,
for most testing purposes, gtkTestWidgetClick is the right
function to call which will generate a button press event followed
by its accompanying button release event.gdkTestSimulateButton(window, x, y, button, modifiers, button.pressrelease)windowxwindow for the button event.ywindow for the button event.buttonmodifiersbutton.pressreleaseGDK_BUTTON_PRESS or GDK_BUTTON_RELEASE